VI ENAN - NATIONAL MEETING ON NUCLEAR APPLICATIONS PAPERS ... · VI ENAN - NATIONAL MEETING ON NUCLEAR APPLICATIONS PAPERS INAC 2002 - INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE #

VI ENAN - NATIONAL MEETING ON NUCLEAR APPLICATIONS PAPERS

INAC 2002 - INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE # 1

inac2002VI ENAN

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E01 Radiation Protection and Dosimetry 2Papers 3

E02 Nuclear Analytical Techniques 25Papers 26

E03 Environmental Sciences 42Papers 43

E04 Nuclear Instrumentation 61Papers 62

E05 Radioactive Waste Management 72Papers 73

E06 Isotopic Techniques in Environmental and Industrial Processes 81Papers 82

E07 Medicine and Health 86Papers 87

E08 Agriculture 100Papers 101

E09 Biology 111Papers 112

E10 Nuclear Physics 116Papers 117

E11 Materials Science and Technology 120Papers 121

E12 Irradiators 132Papers 133

E13 Licensing and Regulations of Radioactive Installations 134Papers 135

E14 Nuclear Applications Management 138Papers 139

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2002VI ENAN

inac



RADIATIONRADIATIONPROTECTION ANDPROTECTION ANDDOSIMETRYDOSIMETRYEE 0101RADIATIONRADIATIONPROTECTION ANDPROTECTION ANDDOSIMETRYDOSIMETRYEE 0101RADIATIONRADIATIONPROTECTION ANDPROTECTION ANDDOSIMETRYDOSIMETRYEE 0101



inac2002VI ENAN

Radiation Protection and DosimetryCALIBRAÇÃO TEÓRICA DE UM DETETOR NaI(Tl) PARA A DETERMINAÇÃO DE 131I EM UM SIMULADOR DE TIREÓIDE

Luzia Venturini

Abstract: This paper describes the theoretical calibration of a NaI(Tl) detector using Monte Carlo Method, for themeasurement of 131I in a thyroid phantom. The thyroid is represented by the region between two concentric cylinders,where the inner one represents the trachea and the outer one represents the neck. 133Ba was used for experimentalcalibration. The results shows that the calibration procedure is suitable for 131I measurements.Keywords: internal contamination, radiation monitoring, thyroidFile: E01_030.pdf

ADAPTAÇÃO DE UM JOGO COMERCIAL DE PERGUNTAS PARA O AUXÍLIO NO ENSINO DE RADIOPROTEÇÃO

Ary de Araújo Rodrigues Júnior

Abstract: An employee will be qualified to operate a gamma irradiation facility at EMBRARAD after doing a radiationprotection training of at least 18 months. After that, the main radiation protection subjects are revised every six months.In that half-yearly training the operators become teachers and so they explain the radiation protection subjects, underthe supervision of an instructor. After some years attending the same training, operators do not have motivation toparticipate in this kind of periodic event due to the same issues covered. Therefore something should be made torevival their interest and motivation to take part in this periodic training. The way chose was adapted a quiz commercialgame to revised radiation protection subjects and included it in the periodic training. The game was well acceptedby the operators, it caused a competition among them because everybody wanted to win the game and consequentlystimulated them to study.Keywords: radiation protection, training, gamma irradiator.File: E01_088.pdf

MONTE CARLO SIMULATION FOR DOSE DETERMINATION IN THYROID CANCER PATIENTS

Hélio Yoriyaz and Maria Inês Calil Cury Guimarães

Abstract: This present study is focused on the dose determination due to I-131 administration in thyroid treatment inseveral parts and structures of the head and spine and also doses received by the thermo-luminescent dosimeters(TLD), placed in the patient´s neck as an attempt to find a correlation between doses received by the spine (bonemarrow included) and the doses received by the TLD dosimeters. The average S-value in those dosimeters is 6.18E-07 mGy/MBq.s, which is about ten times lesser than the average S-value in the bone marrow region. Although anyattempt to built a correlation between doses to bone marrow and to dosimeters is premature, the present calculationgives an indication of this value.Keywords: bone marrow, MCNP-4C, dosimetry, thyroid, TLD.File: E01_045.pdf

ESTUDO DO EFEITO DA ADIÇÃO DO DIÓXIDO DE MANGANÊS AO NITRATO DE POTÁSSIO E SUA UTILIZAÇÃOCOMO DOSÍMETRO

Ana Maria Sisti Galante, Letícia Lucente Campos

Abstract: The pure potassium nitrate (KNO3) is already used as dosimeter in the radiation processing and its usefulrange is between 1 and 150 kGy. With the purpose of increase the dose range, manganese dioxide was added to thepure potassium nitrate and pellets with 6 mm diameter were produced. Several compositions were analyzed. Whenthe obtained composition is irradiated, chemical modifications occur, and are detected by the spectrophotometrictechnique that is used to determine the absorbed dose in the material. The pellets were irradiated in a field withgamma radiation of 60Co. The analyzed characteristics were the dose rate dependence, the response stability andthe dose range.Keywords: dosimetry, high dose, potassium nitrate, industrial processFile: E01_357.pdf



inac2002VI ENAN

Radiation Protection and DosimetryDESCONTAMINAÇÃO DE SUPERFÍCIES NA USINA DE URÂNIO METÁLICO DA DIVISÃO DE PROCESSOS

METALÚRGICOS IPEN/CNEN-SP

Paulo B. S. Cambises; Cláudio C. Almeida; Francisco M F Vasques; Teresinha M Silva;Malvina B. Mitake; Demerval L. Rodrigues

Abstract: This work presents the stages adopted in the planned operation for the decontamination of surfaces in themetallic uranium facility that belongs to the Metallurgic Processes Division (buildings M8-M9). This operation involvedthe planning and training of the facility operators, analysis of the workplaces and radiometric evaluation for the externalradiation and contamination of surfaces monitoring. The training involved the procedures for decontamination ofsurfaces, segregation of materials and practical procedures for the external individual contamination monitoring.Rules were provided for the transport of radioactive material inside the facility and for the release of materials andlocations already decontaminated.Keywords: radiological protection, planned operation, monitoring and decontamination.File: E01_489.pdf

RELEMBRANDO OS CONCEITOS DE RADIOPROTEÇÃO POR MEIO DE UM JOGO COMERCIAL ADAPTADO

Ary de Araújo Rodrigues Júnior

Abstract: Before a new employee starts working at EMBRARAD under a large irradiation operator supervision, he hasto attend the first radiation protection training. After that all radiation protection subjects are revised every six months.In that half-yearly training the employees are chosen randomly to explain radiation protection subjects to otherparticipants under an instructor supervision. After some years attending the same training, employees do not havemotivation to participate in this kind of periodic event due to the same issues covered. Therefore something shouldbe made to revival their interest and motivation to take part in this periodic training. The way chose was adapted acommercial game to revised radiation protection subjects and included it in the periodic training. The game waswell accepted by the employees, it caused a competition among them because everybody wanted to win the gameand consequently stimulated them to study.Keywords: radiation protection, training, gamma irradiatorFile: E01_089.pdf

IMPLEMENTAÇÃO DO SISTEMA DA QUALIDADE NO LABORATÓRIO DE RADIOTOXICOLOGIA DO IPEN

Gaburo, J. C; Caldeira Filho, J.S.; Todo, A S.; Sanches, M.; Campos, L. L.

Abstract: The perception of assured quality is getting more transparence in the research and development areas.The Radiotoxicology Laboratory, LRT, of IPEN, operating since 1978, has as main attribution the development andimplantation of analytical techniques for the measurements of different radionuclides in biological samples. Thus,the LRT considers being of extreme importance to have a management of the quality system to guarantee the reliabilityof the results and to obtain Accreditation Certificate of the National Institute of Metrology, INMETRO. With this objectivethe LRT has participated of projects of quality assurance for analytical laboratories since 1997, promoted byInternational Atomic Energy Agency, IAEA. Currently the quality system of the LRT is in implementation phase, operatingin compliance with the quality system of IPEN (consistent pair ISO 9001-9004:2000) and with NBR ISO/IEC 17025.The quality system implemented in the LRT is described in its Quality Manual, MQ-LRT and in complementaryprocedures that are in their first revision. The participation of the laboratory in intercomparison programs amongnational as international laboratories and the analysis of the results of internal as well as external audits hasdemonstrated that the LRT laboratory presents good performance and with suitable methodology and accurate andprecise results. With the implementation of the quality system it was possible to verify the effectiveness and efficiencyof the tests carried out in the Radiotoxicology Laboratory. The project ARCAL XXVI was concluded in November 2001and the LRT earned the Certificate of Recognition by IAEA.Keywords: quality assurance programme, quality control techniques, performance assessment.File: E01_213.pdf



inac2002VI ENAN

Radiation Protection and DosimetryTHE BRAZILIAN SAFEGUARDS ANALYTICAL LABORATORY

Radier Mário S. de Araújo, José Henrique B. Bezerra and Fábio C. Dias

Abstract: The LASAL - Brazilian Safeguards Analytical Laboratory - has entered in operation in 1983 with the purposeto be the reference laboratory on DA (Destructive Analysis) and NDA (Non Destructive Analysis) measurements,technical support, training, development and implementation of techniques and procedures to be applied in thescope of the Brazilian State System of Accounting for and Control of Nuclear Materials (SSAC). LASAL is able toperform analysis of total uranium content by DA methods and 235U enrichment measurements by NDA techniques indifferent types of samples and items found in nuclear fuel cycle facilities.The Method used to perform DA analysis of uranium is the Davies & Gray/NBL Potentiometric Titration. Primaryuranium standards are available for calibration of the systems and verification of the operational conditions. Precisionand accuracy values as well as the systematic and random components are according to international standards(ESARDA Target Values 2000) for each kind of sample.NDA techniques are more extensive and involve training, development of new techniques for specific applications,determination of 235U enrichment in both field and laboratory conditions. For these tasks, gamma spectroscopy usingdifferent types of detectors is conducted. Analysis of the data is performed by using codes based on peak fittingtechniques. Neutron techniques are also applied for implementation of specific Safeguards approaches.Cooperation with international organizations is frequently established with the purpose to gain experience and increasecapacities and capabilities of the laboratory and its technical staff. The laboratory has already been signed technicalcooperation projects with the International Atomic Energy Agency (IAEA) and the United States Department of Energy(USDOE). Moreover, LASAL is included in the analytical network of the Brazilian-Argentine Agency of Accounting forand Control of Nuclear Materials (ABACC) for determination of total uranium content in samples collected duringsafeguards inspection in Argentine. The participation in International Intercomparison Programmes (ABACC, NBL,CETAMA, EQRAIN and ECU) for determination of total uranium concentration provides to LASAL the opportunity toverify its performance regarding precision and accuracy and compare with the international standards.Keywords: safeguards, uranium, destructive, non-destructive, assayFile: E01_479.pdf

REQUISITOS DE PROTEÇÃO RADIOLÓGICA EM CLÍNICAS ODONTOLÓGICAS

Madelon A. F. Zenóbio e Teógenes Augusto da Silva

Abstract: Diagnostic radiology consists of an ionizing radiation source to which the man are more exposed. Theimportance of radiographic exam in Dentistry made it a diagnostic supplemental resource and a treatment guideused by the dentistry area professionals. After studying all the risks related to X-ray on medical and odontologicaldiagnostics, this study intends to realize a literature review in relation to the radiological protection requirements,among then, the article 453, that aim to promote the reduction of radiation doses to beings involved with diagnosticradiology without damaging or even improving the exam quality and the data on it included.Keywords: radiation protection, X-ray, odontologyFile: E01_739.pdf

CALIBRAÇÃO DE UMA CÂMARA TIPO LÁPIS EM FEIXES PADRÕES DE RAIOS-X

Ana F. Maia e Linda V. E. Caldas

Abstract: A Victoreen pencil ionization chamber, model 660-6, specially designed to be used in beam dosimetry ofcomputed tomography, was evaluated and calibrated in standard X-rays beams. An X-ray diagnostic equipment,which operates up to 125kV, and a low energy X-ray equipment, which operates up to 60kV, were utilized in this work.The chamber was calibrated in the standard beams already established at the Calibration Laboratory of IPEN. Theenergy dependence was adequate to not attenuated beams. However, for attenuated beams the energy dependencewas higher than 100%.Keywords: computed tomography, pencil ionization chamber, calibration, standard beamsFile: E01_522.pdf



inac2002VI ENAN

Radiation Protection and DosimetryPROPRIEDADES TERMOLUMINESCENTES DE VIDROS COMUNS COLORIDOS PARA DOSIMETRIA DE DOSES

ALTAS

Maria Inês Teixeira e Linda V. E. Caldas

Abstract: Colored glasses produced by Cebracê, São Paulo, were analysed using the thermoluminescent (TL)technique, with the objective to verify the possibility to use them as high dose dosimeters or as irradiation indicators atindustrial areas, due to their easy handling and low cost. The samples were exposed to different gamma radiationdoses, at a Gamma-Cell 220 system (60Co) of IPEN. The TL emission curves presented peaks at 135, 150 and 145ºCfor respectively bronze, brown and green glass samples. Calibration curves were obtained for doses from 50 Gy up to360 kGy. Reproducibility of TL response and the lower detection doses were determined for each kind of glass. Alltested glasses showed their utility as irradiation indicators “Yes/No” and as high dose dosimeters.Keywords: glass, high doses, dosimeterFile: E01_535.pdf

PROTEÇÃO RADIOLÓGICA OCUPACIONAL NO CENTRO TECNOLÓGICO DA MARINHA EM SÃO PAULO

Ricardo d’Utra Bitelli e Rodemir de Oliveira

Abstract: This work shows some activities developed by the Division for Radiation Protection of the Department forNuclear Security, responsible for occupational and environmental radiological protection.The Division for Radiation Protection at CTMSP controls access in areas where radioactive materials are handled,by means of procedures and implementing preventive and corrective programs of radioprotection. The protectiveactions include the access control in restricted areas and the monitoring of radiation into the environment and indoor.The corrective activities include the personal monitoring and potential intakes by workers, through thermoluminescentdosimeters and “in vivo” and “in vitro” measurements, after access in restricted areas.Finally, this Division have demonstrated special attention in relation to effective dose to member of the public, applyingappropriate procedures in protection and prevention of accidents involving release of radioactive substances into theenvironment in the form of gaseous and liquid radioactive effluents and radioactive wastes.Keywords: radiological protection, cccupational monitoring programFile: E01_544.pdf

IMPACTO RADIOLÓGICO DEVIDO À RUPTURA DE UM TANQUE RADIOATIVO NO EDIFÍCIO AUXILIAR DO REATORDE ANGRA 2

Erivaldo Mário dos Passos e Antônio Sérgio De Martin Alves

Abstract: This paper aims to show the methodology, the parameters and some results of the radionuclide migrationsimulation in order to determine the radiation impact to the biosphere due to an accidental radionuclide releaseassociated with the rupture of a radioactive tank within the Reactor Auxiliary Building of Angra 2. After tank rupture, theradionuclides are supposed to reach the sea via the aquifer of the Angra 2 site. This radiological impact is evaluatedwith the aid of the activity concentration at the sea and dose received by members of the public. Activity concentrationfor each radionuclide is calculated according to the ANSI/ANS – 2.17 – 1980, which shows the methodology forcalculation of activity concentration in the aquifer in case of accidental radionuclide releases of nuclear power plants,whereas the dose calculation folllows recognized international procedures. The migration analysis for the mentionedradionuclides is performed through the aquifer and allows to estimate the maximum activity concentration near thesea boundary and the annual dose to the member of the public. Based on the safety analysis performed for theinvestigated case one can conclude the annual dose impact is lower than that corresponding to one year of normaloperation of the Angra 2 plant.Keywords: safety analysis, radiological impact, radioactive tank ruptureFile: E01_604.pdf



inac2002VI ENAN

Radiation Protection and DosimetryESTUDO DO EQUILÍBRIO ELETRÔNICO NO ALUMÍNIO UTILIZANDO O

DOSÍMETRO TERMOLUMINESCENTE DE CaSO4:Dy

Claudio A. Federico, Luiz P. Geraldo, Odair L. Gonçalez, Renato Semmler, Alexandre D. Caldeira e Leda S. Y. Rigolon

Abstract: In this work the experimental results of the absorbed dose profile measurements for an aluminum sampleirradiated by collimated beams of thermal neutron capture gamma rays are presented. The gamma radiations wereproduced by 23 appropriated capture targets in the tangential beam hole of the IPEN-CNEN/SP IEA-R1 (2MW) researchreactor. The charged particle transient equilibrium (CPTE) thickness was obtained from the analysis of the doseprofile for each gamma ray capture spectrum. The results are compared with the CSDA electron range, calculatedat the maximum electron energy produced by the gamma radiation. A semi-empirical correction applied to the CSDAelectron range is suggested for fitting the CPTE thickness as a function of the mean energy of the capture gamma-ray spectrum in the interval from 3275 to 7850 keV.Keywords: radiological protection, working procedures, radioactive materials transportation, fertile products.File: E01_316.pdf

TRANSPORTE DE NITRATO DE TÓRIO PARA FIRMAS EXTERNAS AO IPEN-CNEN/SP

Cláudio C. Almeida; Massao Kamonseki; Eduardo C. Monteiro; Teresinha M. Silva; Francisco M. F. Vasques;Demerval L Rodrigues.

Abstract: The aim of this article is to show the adopted measures during the transportation of packs containingTh(NO3)4 + 4H20, made by the Experimental Plant of the Instituto de Pesquisas Energéticas e Nucleares (IPEN), thatwas moved away from the IPEN to a external company, during the year of 2001. The purpose is certify that theradioprotection basic standards were followed. The recommendations described in the standard “Transporte deMateriais Radioativos” - CNEN-NE 5.01 - was observed, in order to certify safe levels of eventual exposition of radiationin people, goods and environment, relative to each allowed transportation. The radioprotection standards describesthe work procedures in the packs to be lately irradiated by others companies, surface contamination and evaluationthe transportation indexes to final liberation of the vehicle, according to the proper standards.Keywords: radiological protection, working procedures, radioactive materials transportation, fertile products.File: E01_265.pdf

SCATTERING FRACTION OF X-RAYS INCIDENT ON A PHANTOM FROM THE MEASURED ENERGY SPECTRA

Marco A. G. Pereira, Daniel. A. B. Bonifácio, Ana C. B. Machado, Fabio Y. Kanashiro, Silvio B. Herdade,Ricardo A. Terini, Linda E. V. Caldas

Abstract: The scattering fraction of X-rays incident on a polymethil–methacrylate/aluminum phantom have beencalculated from the measured spectra of the primary and scattered radiation in different directions. Constant potentialX-ray equipment has been utilized to produce beams with a maximum energy in the range 40-90 keV. The energyspectra have been measured by means of an Amptek XR-100CR system with a silicon PIN photodiode detector. Theraw spectra have been corrected for the dependence of the detector efficiency on the photon energy, and utilized todetermine the ambient dose equivalent (ADE) due to the primary beams and to the radiation scattered at the angles30º, 90º and 150º with the incident beam direction. The spectra have been calibrated in kerma units by means of thedata obtained simultaneously with an ionization chamber. For the determination of the ADE, the kerma spectra (grays)was converted to sievert units through the energy dependent factors published in the ICRU 57 report. Scatteringfractions were determined as the ratio of these two ADE values, according to the 453 Brazilian Health Ministry Rule.Results show that the obtained angular dependence of the scattering fractions follows nearly the same behavior ofprevious measurements recently published.Keywords: X-ray spectrometry, scattering fraction, ambient dose equivalent, PIN photodiodes, radio diagnostic.File: E01_556.pdf



inac2002VI ENAN

Radiation Protection and DosimetryVERIFICAÇÃO DA EFETIVIDADE DE BLINDAGEM RADIOLÓGICA PARA O LABORATÓRIO DE CALIBRAÇÃO

DOS MONITORES DE RADIAÇÃO DA CNAAA

Antônio Sérgio De Martin Alves e Erivaldo Mário dos Passos

Abstract: This paper presents a summary of methodology, parameters and results of the dose rate simulations inorder to demonstrate the effectivity of the wall shielding designed for the irradiator room of the Laboratory of Calibrationof Radiation Monitors (LCMR) of the Central Nuclear Almirante Álvaro Alberto (CNAAA). The maximum annual dosefor the external surfaces of the concrete wall is limited to the value of 1 mSv/year. The main radioactive source of theirradiator has gamma intensity corresponding to 3,7.1012 Bq of 60Co. The perpendicular concrete wall to the gammabeam of this irradiatior source is constructed of heavy concrete, whereas ceiling, floor and side walls of the roomincluding the entrance labirinth are designed with ordinary concrete. The point kernel approximation is used forestimating the direct gamma dose rate and the differential dose albedo for estimating the scattered dose rate. Theresulted values of calculated annual dose lead to the conclusion that the designed concrete shielding proportionatesgamma annual doses in the external areas of the building lower than the fixed limit, a fact that demonstrates itsshielding design effectivity.Keywords: shielding, concrete shieldingFile: E01_601.pdf

FATORES DE TRANSLOCAÇÃO DE 60CO, 90SR E 137CS EM BATATEIRA E MILHEIRO

José Flávio Macacini, Maria Helena Tirollo Taddei, Nivaldo Carlos da Silva,Henrique Takuji Fukuma, Maria Angélica Wasserman

Abstract: The translocation of 60Co, 90Sr and 137Cs from leaves into the edible parts of vegetable after foliar depositionor impregnation, at different stages of growth, has been determined for corn and potato plants in experiments intogreen house. Both types of studied vegetables presented temporary dependence between the moment of impregnationand the translocation. The maximum values of translocation were verified between 40 and 60 days after the plantation.The used experimental design was randomised blocks. Any correlation between translocation of 90Sr and moment ofimpregnation was verified.Keywords: translocation factor, potato plant, maize plant, 60Co, 137Cs.File: E01_580.pdf

RESPOSTA DOS EQUIPAMENTOS E ATUAÇÃO DA EQUIPE DE RADIOPROTEÇÃO NA SOLUÇÃO DO INCIDENTE

NO REATOR IEA-R1, QUANDO DO VAZAMENTO DE UM ELEMENTO COMBUSTÍVEL

Lopes, Valdir Maciel; Toyoda, Eduardo Yoshio; Costa , Carlos Alberto R.

Abstract: The IEA-R1 nuclear research reactor settled at IPEN-CNEN/SP, has been offering many services forcommunity, such as the irradiation of a large array of samples for medical, industry and research purposes with along and successfull history of safety achievements. There are no evidencies until nowadays that has occured anyfuel element failure during routine operation since the reactor start up at 1957. All established safety procedures andequipment used during radiation monitoring are employed to detect and survey any failure in reactor normal operation.In July 30, 2001, during a routine reactor operation, it was detected a fission products release from one of the reactorcore fuel elements MTR type, flat plate, made of alluminum alloy and showing a initial enrichment of 20% in 235U. Inthis work, will be presented some data from fixed and portable detectors monitoring that clearly show an increase ofradiation levels inside the containment building. In this specific abnormal event, as well as the procedures adoptedby the radiation protection team for proper problem identification and solution.Keywords: equipment, radiation protection, reactor, fuel element, leaking.File: E01_638.pdf



inac2002VI ENAN

Radiation Protection and DosimetryCÁLCULO DE MONTE CARLO DA CONSTANTE DE TAXA DE DOSE NA ÁGUA PARA A SEMENTE DE 192Ir

Cosme Norival Mello da Silva e Evaldo Simões da Fonseca

Abstract: Accurate clinical dosimetry around radioactive sources employed in brachytherapy requires knowledge ofthe dose rate constant as well the relative dose distribution. The dose rate constant was obtained in two parts. Firstthe absorbed dose rate to water per unit contained activity at a distance of 1 cm on the transverse axis was calculatedby means of the EGSnrc usercode DOSRZnrc, and then the air-kerma strength per unit activity was calculated basedon the photon fluence around a 192Ir source in vacuum. The EGSnrc usercode FLURZnrc was employed. A MonteCarlo estimate of the dose rate constant for a 192Ir model microSelectron-HDR seed equal to 1,07 cGy h -1 U-1 wasobtained. This result agreeing within 4% with experimental and theoretical values published.Keywords: 192Ir, brachytherapy, fluence spectra, monte carlo, EGSnrc.File: E01_644.pdf

COMPORTAMENTO DE MONITORES, NÍVEL RADIODIAGNÓSTICO, EM FEIXES PADRONIZADOS DE RADIAÇÃO X

Maria da Penha A. Potiens e Linda V. E. Caldas

Abstract: The Calibration Laboratory of IPEN implanted the radiation qualities recommended by the IEC 1267 standard,in the X radiation Neo-Diagnomax system for the calibration of instruments used in diagnostic radiology. Since 1997this service has been offered to the users. Sixteen different models of ionization chambers used in measurements indiagnostic radiology have been calibrated since then. The nine more utilized models of ionization chambers (volumesvarying from 3 to 1800 cm3), calibrated more than one time during the period 1997-2001, were selected for analysis.The results show that only three ionization chambers presented the energy dependence higher than 5%, that is therecommended value by the international standards for this kind of instrument.Keywords : calibration, X radiation, diagnostic radiology, ionization chambersFile: E01_711.pdf

ESTUDOS PRELIMINARES DAS PROPRIEDADES DOSIMÉTRICAS DO CaSO4:Mn PELA TÉCNICA

ESPECTROSCÓPICA DE RPE

Orlando Rodrigues Júnior; Kelly Cristina Simão; Ocimar L. Galante e Letícia L. Campos

Abstract: Electron Paramagnetic Resonance (EPR) signal of CaSO4:Mn powder at room temperature has beenstudied with the objective of to characterization this material for dosimetric applications. In this first stage, the studyinvolved the interpretation and identification of the main components of the EPR spectrum for irradiated and notirradiated samples. Its was evaluated the variation of the shape and signal amplitude of the EPR signal with the doseabsorbed and concentration of Mn and also the fading of EPR signal. The results indicate that the thermal treatmentand Mn concentration in the samples are critical factors in the process.Keywords: EPR, dosimetry, high doseFile: E01_632.pdf

CONTROLE DE QUALIDADE DE UM SISTEMA DE REFERÊNCIA PARA A CALIBRAÇÃO DE INSTRUMENTOS EMRADIODIAGNÓSTICO

Jurema Aparecida de Miranda e Maria da Penha A. Potiens

Abstract: A study of the stability of the dosimetric system used as reference for the calibration of instruments utilized indiagnostic radiology measurements was carried out by the following tests: repeatability, long term stability and leakagecurrent. The dosimetric system is composed by a PTW ionization chamber, model 77334, with 1 cm3 of volume,connected to a PTW electrometer, model UNIDOS. A check source of 14C was used. The repeatability test presenteda maximum variation of 3.7%. For the long term stability the values obtained presented a variation in relation to thereference value less than the recommended value (2%). During the period of tests the leakage current of the systemwas negligible.Keywords: ionization chamber, diagnostic radiology, quality control, calibration, X radiationFile: E01_767.pdf



inac2002VI ENAN

DESEMPENHO DE UMA CÂMARA DE IONIZAÇÃO ESPECIAL PARA CONTROLE DA QUALIDADE EMRADIOTERAPIA

Alessandro M. da Costa and Linda V. E. Caldas

Abstract: A special double-faced plane parallel ionization chamber, with inner electrodes of different materials wasdeveloped. Its use will be in quality control programs of X-rays equipments, radiotherapy level. This chamber wastested and calibrated in accordance with international recommendations, and it showed a satisfactory level of performance,mainly with regard to its use: the formation of a Tandem system for confirmation of half-value layers and effectiveenergies in X-radiation beams, previously determined by the conventional method. In this developed system absorbersor any special set-ups are not necessary. The main advantages of this type of chamber are simple and quickmeasurements, that enable higher frequency of quality control tests. Moreover, the Tandem chamber presents lowcost, and can be used with any commercial available electrometer.Keywords: ionization chambers, X radiation, quality control, radiotherapy, tandem system.File: E01_683.pdf

DESEMPENHO DE UM SISTEMA PADRÃO DE INTERCOMPARAÇÃO EM FEIXES DE RAIOS X DE ENERGIASBAIXAS

Felícia D.G. Rocha e Linda V. E. Caldas

Abstract: The Calibration Laboratory of Instituto de Pesquisas Energéticas e Nucleares has been offering for morethan twenty years the service of calibration of radiation monitoring instruments, for use in radiation protection, diagnosticradiology and radiotherapy. In radiotherapy, the instruments used are the ionization chambers. The calibration of theseinstruments is obtained using an X-ray system of low energies (60 keV) and a reference instrument formed by a planeparallel ionization chamber and an electrometer. The aim of this work is to verify the performance and stability of acommercial ionization chamber, used as a intercomparison standard for different photon energies in the low range. Thechamber utilized in this work showed a satisfactory performance relative to short and long term stabilities and energydependence.Keywords: ionization chamber, calibration, radiotherapy, calibration factorFile: E01_697.pdf

DESENVOLVIMENTO DE UM SISTEMA INTEGRADO PARA AVALIAÇÃO DE IMPACTO RADIOLÓGICO AMBIENTALEM SITUAÇÕES DE EMERGÊNCIA

Luiz F. C. Conti, Elaine R. R. Rochedo, Eliana C. S. Amaral

Abstract: An integrated system for performing environmental dose assessment after nuclear or radiological emergencieshas been developed, as a tool for decision making process. The system includes databases such as those describingradionuclide decay, dose conversion factors for several environmental geometries and radionuclides with emitted radiationand energies. It includes several models for predicting environmental behavior at the short, medium and long terms, forboth rural and urban environments and is flexible enough for simulating the exposure of members of the public due tosmall accidents involving individual sources up to large scale nuclear accidents with complex source terms to theenvironment. The model has been built in a way that can perform assessment of actual exposures or make forecastsfor future exposure based on dynamic simulation of the fate of radionuclides in environmental and potential exposurepathways to members of the public, taking into account the kind of contaminated environment and the age groups ofexposed persons. Input data may come from a predicted source term or information on environmental concentrationbased on dispersion models or on environmental measurements, including on line monitoring systems, environmentalsurveys, direct measurements by in situ gamma spectrometry or analysis of environmental samples. Outputs of themodel are dose estimates to members of the public as a function of the exposure pathway, time after the contaminationand age group, for different groups of members of the public and kind of use of the environment. Time dependentkerma rates in air and concentrations in environmental compartments such as soil and foodstuff are also available,including the simulation of the effect of protective measures, to support the decision making process.Keywords: impact assessment, radiation protection, accident, modelFile: E01_449.pdf

Radiation Protection and Dosimetry



inac2002VI ENAN

Radiation Protection and DosimetryANÁLISE DOS RESULTADOS DA MONITORAÇÃO DE ÁREA REALIZADA DURANTE O PROCESSO DE

PRODUÇÃO DO IODO 123 NO INSTITUTO DE ENGENHARIA NUCLEAR

Tânia Schirn Cabral e Maria Isabel Barbosa da Silva

Abstract: The Institute of Nuclear Energy (IEN) produces iodine 123 for nuclear medicine hospitals and clinics. Thiswork has the objective to present the applied procedures to monitor the circulating areas of the ciclotron building and itssurroundings and the results obtained with those monitoring activities in the years 1999 to 2001. The whole processaims, besides personal safety, to fulfill the radiological protection standards of the National Commission of NuclearEnergy (CNEN). It, also, describes the facilities, difficulties and solutions found in this process.Keywords: controlled area, monitory area, operacional limits, radiological protection and supervised area.File: E01_038.pdf

ESTUDO DOS PROCEDIMENTOS DE PROTEÇÃO RADIOLÓGICA E

GERENCIAMENTO DE REJEITOS RADIOATIVOS EM LABORATÓRIOS DE RADIOFARMÁCIA

Priscila M. Zidan e Maria Isabel B. da Silva

Abstract: The 123I, used in the thyroid cancer diagnosys, it is already being used at several clinics of nuclear medicine,instead of 131I. This last one, for presenting half-time 15 times bigger than the first one and provides larger doses tothe patient and slower exams. Another subject is the management of the residues generated by the radiopharmaceuticalslaboratory, which requests larger physical space, in the case of the 131I.In the present work, six radiopharmaceuticals laboratory of the state of Rio de Janeiro were visited. All of them use the123I produced by the Instituto de Engenharia Nuclear. In these visits, it was evaluated the radioprotection proceduresand the management of residues of those laboratories, as well as the available infrastructure.Keywords: waste management, radioprotection, nuclear medicine.File: E01_037.pdf

DEPENDÊNCIA ANGULAR DE DOSÍMETROS TERMOLUMINESCENTES UTILIZADOS EM TOMOGRAFIACOMPUTADORIZADA

W. Flores, R. T. Lopes, H.C. Mota, A.X. Da Silva

Abstract: The thermoluminescence dosimetry has been used widely to quantify the radiation doses in diagnoses radiologyand radiotherapy, The LiF (TLD 100) dosimeters are generally used. A errors source has been being introduced by theirradiation differents geometry between calibrations and the measure in devices tomographics. The code Monte CarloMCNP4B is used in this work to simulate the direction change effect varying the incidence angle between 0 to 90 for X-ray spectrum gives 120 to 140 kVp, in air, water, and acrylic.Keywords: thermoluminescence dosimetry, radioterapy, dadiodiagnostic, monte carlo,File: E01_111.pdf

ON THE NEED OF INCOPORPORATING THE INTERVENTION CONCEPT IN THE BRAZILIAN RADIOLOGICALPROTECTION REGULATORY FRAMEWORK

Horst Monken Fernandes & Mariza Ramalho Franklin

Abstract: The concept of intervention is not part of the Brazilian Regulatory Framework. As a result, situations thatcould be regarded as being typically intervention situations cannot be dealt this way according to the present BrazilianRegulations. The dose limit of 1 mSv.y -1 is generally applied. This paper will address the fundamentals that govern theprinciple of intervention, discuss socio-economic aspects related to this issue, emphasize the costs involved on theindiscriminate use of the 1 mSv.y -1 dose limit and suggest a preliminary framework to be incorporated in the BrazilianRegulatory FrameworkKeywords: intervention, remediation, contaminated areas, commodities, tenorm.File: E01_408.pdf



inac2002VI ENAN

Radiation Protection and DosimetryCARACTERIZAÇÃO DA RESPOSTA RPE DOS EXCIPIENTES DOS MEDICAMENTOS PARA APLICAÇÃO EM

DOSIMETRIA DE ACIDENTE

Barbara S. Marczewski; Orlando Rodrigues Jr; Ocimar L. Galante; Zélia M. da Costa e Letícia L. Campos

Abstract: Some drugs are widely used by the population and can be employed to dose retrospective. The carbohydrates(saccarides), commonly used as excipients in the pharmaceutical industry, produce a quantity of free radicals aftergamma irradiation, making them useful for dosimetry in emergency or accident situations that imply in dose evaluationfrom the materials found nearly or in contact with victims. In general, RPE signal from pulverized pills of some drugs arevery complex due to the variety of components in the formulation. Because of this fact, some pharmaceutical excipientsidentified in the pill composition were also analysed by RPE spectrometry. On the counter drugs were studied: Cebionâglicose, AASâ, Aspirinaâ, Conmelâ, Lacto-Purgaâ and sugar substitutive ZeroCalâ. The excipients were: lactose, amide,anhydrous glucose and magnesium stearate. In some samples the number of radicals produced increased with thedose, showing a linear response for a dose range of interest and an adequate sensibility for dosimetry in accidentcases.Keywords: EPR, high dose, dosimetryFile: E01_498 .pdf

ESTUDO DE TÉCNICAS DE ANÁLISE DE RESPOSTA DE DOSÍMETROS TERMOLUMINESCENTES

Walber Amorim Castro, Éudice Correia Vilela e Ricardo de Andrade Lima

Abstract: The Personal Monitoring Service of the Centro Regional de Ciências Nucleares uses in its dosemeter theTLD 700 material . The TLD´s analysis is carried out using a Harshaw-Bicron model 6600 automatic reading system.This system uses dry air instead of the traditional gaseous nitrogen. This innovation brought advantages to the servicebut introduced uncertainties in the reference of the detectors; one of these was observed for doses below 0,5 mSv. Inthis work different techniques of analysis of the TLD response were investigated and compared, involving dose valuesin this interval. These techniques include thermal pre-treatment, and different kinds of the glow curves analysis methodswere investigated. Obtained results showed the necessity of developing a specific software that permits the automaticbackground subtraction for the glow curves for each dosemeter . This software was developed and it bean tested.Preliminary results showed the software increase the response reproducibilityKeywords: termoluminescence dosimetry , low dose , glow curves.File: E01_300.pdf

CALIBRAÇÃO DA UNIDADE DE CONTADOR DE CORPO INTEIRO DO IRD PARA MEDIDAS IN VIVO DE PB-210 EMTECIDO ÓSSEO E PULMONAR

Ana Letícia A. Dantas, Bernardo M. Dantas, Adelaide M.G.F.Azeredo, Eder A. Lucena e Henry B. Spitz

Abstract: Radon and its decay products are present in the atmosphere and are the most important contributors for theinternal exposure of the humans to natural radiation. The execution of in vivo measurements of lead-210 in the populationand in individuals occupationally exposed in underground mines has been studied and recommended as one of theprocedures for the estimation of the exposure to Rn-222. The metabolism of Pb-210 and its distribution within thehuman body, mainly deposited in the bone tissue, suggests the regions of skull and knee as the most suitable for the invivo monitoring of such a radionuclide. These regions of the body present a high concentration of bone and little crosscontribution from other organs. The chest monitoring is useful to estimate recent incorporations of radon decay productsby inhalation, which is the main exposure pattern. This type of measurement should be carried out inside a heavyshielded room and with a detection system of high sensitivity and resolution in order to reach the low detection limitsrequired for this application. The calibration of the detection system requires the use of anthropomorphic phantoms ofskull, knee and lungs. The calibration consists on the determination of efficiency factors used to convert the count ratesin the region of Pb-210 (46.5 keV) into an activity value in Bequerels. This way it is possible to determine the activity ofPb-210 in each of the organs and tissues of interest of the individual monitored in order to estimate the internal individualexposure to radon progeny.Keywords: lead-210, radon, occupational exposure, bone tissue, lungFile: E01_058.pdf



inac2002VI ENAN

Radiation Protection and DosimetryESTIMATIVA DE BACKGROUND EM MEDIDAS IN VIVO DE BAIXA ENERGIA ATRAVÉS DA CORRELAÇÃO COM

PARÂMETROS ANTROPOMÉTRICOS E COM O CONTEÚDO CORPORAL DE POTÁSSIO

Wanderson O. Sousa , Ana Letícia A. Dantas & Bernardo M. Dantas

Abstract: The occupational monitoring of individuals with potential risk of incorporation of radionuclides such as Am-241, U-238, U-235 and Ra-226 by inhalation in workplaces where particulates in suspension can be present, is frequentlyperformed by in vivo measurements of the lungs. The activity calculation involves a comparison of the acquired spectrumwith a reference spectrum. The accuracy of the background prediction is critical when the expected activities are closeto the minimum detection limit. This is the case of occupational monitoring where most of the activities observed arebellow or very close the detection limit. The use of a inappropriate reference spectrum can lead to false-positive orfalse-negative results. The variability of potassium content among individuals in one of the major factors in the fluctuationof the count rate in the low energy region of the spectrum. This contribution is associated with the Compton effect dueto the interaction of 1461 keV photons emitted by K-40. In order to verify the correlation between the background countrate in the various regions of interest of the low energy spectra with the potassium mass in the body it was designed anexperimental procedure consisting of measuring a thoracic phantom containing known amounts of potassium. Thestrong correlation observed motivated the continuity of this work which consisted in the analysis of real low energy invivo spectra with the aim of verifying the correlation between anthropometric parameters (sex, age, weight and height)and the count rates in the region of K-40 with the count rates in the low energy regions of interest. The results obtainedshow a significant correlation between the selected parameters with the count rate of the background. This allows amore reliable estimation of activity of low energy radionuclides in individuals monitored through in vivo measurements.Keywords: background prediction, anthropometric parameters, uranium, americiumFile: E01_059.pdf

DESENVOLVIMENTO DE UM CARTÃO DOSIMÉTRICO PARA MAMOGRAFIA

Cláudio J. M. Menezes, Suy F. Hwang, Walber A. Castro e João E. Peixoto

Abstract: Patient dose at skin entrance in mammography is a major parameter to be evaluated in an accreditationprogram. In this work a Mammographic Dosimetric Card was developed which uses two thermoluminescent dosimeters(TLD LiF-100). To measure the dose at skin entrance the dosimetric card has to be exposed on a standard mammographyphantom. The results of linearity and reproducibility presented maximum variation less than 10%. This dosimetric cardwill be used in the Mammography Accreditation Program of the Brazilian College of Radiology to measure dose at skinentrance in patients undergoing mammography in the facilities applying to accreditation.Keywords: dosimeter, dosimetric, mammography, quality control, radiology.File: E01_417.pdf

EVALUATION OF POLYANILINE NANOFILM’S RESPONSE FOR 60 Co BEAMS

Jane M. G. Laranjeira; Helen J. Khoury; Walter M. Azevedo;Eronides F. da Silva Júnior and Elder A. De Vasconcelos

Abstract: In this paper the gamma dose response of the polyaniline nanofilms deposited by “spincoating” technique inglass substrate is evaluated by UV-visible absorption spectroscopy. The polymeric film when exposed to a 60Co gammaradiation presented a radiochromic effect, with changing color from blue to green. The green color of the irradiated filmand the two absorption bands developed at 420 nm and 832 nm are associated with the generation of polaron defect(radical cation) in the backbone polymer responsible for the high conductivity of the polymer. The doping effect inducedby the radiation is reversible and the polymer becomes blue when treated with ammonium hydroxide. A linear relationshipamong the absorption intensity with dose radiation is observed with saturation in 3 kGy. These results show the viabilityof using the polyaniline nanofilms as a gamma dosimeter for high doses.Keywords: polyaniline, UV-visible spectroscopy, gamma dosimeterFile: E01_423.pdf



inac2002VI ENAN

Radiation Protection and DosimetryPROPOSTA DE METODOLOGIA DE CÁLCULO DE DOSE EXTERNA ANUAL EM LEVANTAMENTOS

RADIOMÉTRICOS EM SALAS DE HEMODINÂMICA

Elton Gomes Pereira

Abstract: The radiological survey in a cardiac diagnostic room shows a very peculiar situation when compared to anyother modality of X ray rooms. The two way to irradiate the patient (fluoroscopy and cineangiography), the so manypositions possible to reach with the tube-image intensifier arc and the near patient permanence of the medical staffoffer altogether some restrictions to the current method of calculating the annual external dose. It is proposed a specificmethod to acquire the data and to calculate the external dose in cardiac diagnostic rooms. This method is supposed tobe more realistic than the usual one, because it takes into account the two modes of irradiating the patient as well as thefour main positions of the arc. The workload is also obtained in an easier way, without any guess.Keywords: radiation protection, radiological survey, diagnostic radiology:File: E01_450.pdf

APLICAÇÃO DA TERMOLUMINESCÊNCIA FOTOESTIMULADA

NA ÁREA OFTALMOLÓGICA USANDO-SE CaSO4:Dy

Fabio H. Grossi, Letícia L. Campos, Paulo Schor e Luis A. S. de Melo Jr.

Abstract: The utilization of CaSO4:Dy pellets to laser radiation detection on the ophthalmologic area is being studiedby IPEN together with Unifesp, in order to obtain an adequate dosimeter to set the dose laser spread and received bythe patients, professional of health and environmental. The method of phototranferred thermoluminescece (PTTL)using CaSO4:Dy pellets with 0,8mm of thickness, introduced good sensibility to the excimer laser used on Unifesp.The PTTL signal to the laser radiation shown reproducible and linear in a great range of absorbed energy (»4.000mJ)and gama doses (5 – 100Gy) and, points of measure with distances source laser–sample in order of 4,0m presentsgood resolution of the PTTL signal. A method of monitoring the area in the surgery room was tried between the IPENand Unifesp. Using the CaSO4:Dy, the researchers have had a method cheaper and accessible to study the eventualrisks of the ultraviolet radiation on the chromosomic breakage and in the development of malignancies tumors inprofessional of health exposed daily to the excimer laser used in corneans refractive surgeries.Keywords: phototranferred thermoluminescence, CaSO4:Dy, excimer laser and dosimetry.File: E01_452.pdf

DOSE DE INGESTÃO DEVIDO AO CONSUMO DE ALIMENTOS:

DIFERENÇAS ENTRE ÁREAS DE RADIOATIVIDADE NATURAL ELEVADA E NORMAL

Dejanira C.Lauria, Sandra Hacon e Maria Lúcia Polônio

Abstract: The activities of 238U, 226Ra, 210Pb, 228Ra and 232Th were determined in foodstuff samples from Buena region,which is one of the most important Brazilian monazite occurrence regions. The comparison among the radionuclideconcentrations in the foodstuffs from Buena and Rio de Janeiro city showed that the foodstuffs from Buena haveconcentration of radium and 210Pb 5 to 13 times higher than that one consumed by Rio de Janeiro city inhabitants. Thedaily intake of radionuclides by the Buena adult inhabitants were estimated to be 8.7 mBq of 238U, 25 mBq of 232Th, 79mBq of 226Ra, 94 mBq of 210Pb and 267 mBq of 228Ra. Comparing the radionuclide intakes between Buena and Rio deJaneiro, it is observed that in Buena the radium and 210Pb consumption are around 4 times higher, the 232Th consumptionis around 12 times higher and the 238U consumption is similar to that one of Rio de Janeiro city. The intake rate does notreflect directly the radionuclide concentrations found in Buena products and shows the concentration dilution causedby the foodstuffs import from other regions. The total annual effective dose was estimated to be 120 µSv for Buena and34 µSv for Rio de Janeiro city adult inhabitants. Once Buena region does not produce all foodstuffs that consumes, theeffective dose for Buena inhabitants is decreased by the consumption of import products.Keywords: natural radionuclides, intake, high background radiation area, foodstuffs, monazite.File: E01_619.pdf



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Radiation Protection and DosimetryCONTROLE AMBIENTAL DO REPOSITÓRIO DE REJEITOS DE ABADIA DE GOIÁS

Maisa. H. Magalhães, Maria Elizabeth E.D. Acar, Dejanira C. Lauria

Abstract: In May 1997 the building of the Abadia de Goiás disposal site was concluded. This waste disposal site wasbuilt to store the waste from Goiânia cesium accident, which at the end of the city decontamination process amounted3,500 m3 radioactive wastes, being 6,000 tons of solid waste. Since 1988 a radiological monitoring program has beenperformed at the site with the objective of assessing the site environmental impact. The site operator carries outmeasurements of the gamma exposure rate and 137Cs in different kind of samples (surface water, groundwater, soil,sediment, grass and milk). In order to assess the performance of the monitoring program, the Comissão Nacional deEnergia Nuclear (CNEN), through the Departamento de Proteção Radiológica Ambiental (DEPRA/IRD), maintains amonitoring control program at the site. With the purpose of verifying the quality of the data supplied by the operator,some requirements have to be fulfilled by the site operator. This article presents the methodology adopted by theregulatory agency to control the monitoring program of the Abadia de Goiás disposal site and discusses the results ofthe monitoring control program.Keywords: radiological accident, environmental monitoring, waste disposal, repository, 137Cs.File: E01_585.pdf

ESTUDO DO MÉTODO DE SÍNTESE E DA ESTABILIDADE DE RESPOSTA DA POLIANILINA DOPADA UTILIZADAEM APLICAÇÕES DOSIMÉTRICAS

Ana P. L. Pacheco; Elmo S. Araújo; Walter M. de Azevêdo

Abstract: Preliminary studies indicated that PANI is a suitable material for the use in the dosimetry area. Experimentalsresults indicate that the conductivity properties of the polymer is affected by the absorbed dose. In that reason it ispossible to quantify the dose, analyzing the variation of the electrical resistance of the polymer as a funtion of the dose.However, to use this material in the dosimetry area it is necessary to studies the response stability of the material alongthe time, before and after the irradiation. In this work we will show the study of the stability behavior of PANI, during itslife time. For that we will use films of doped PANI, synthesized by different methodologies and conditioned in differenttemperature and humidity conditions. This study is important because we can define which is the best synthesis methodto produce PANI films that can be used for making devices to be used in dosimetric applications, as well as, the bestconditions those devices should be conditioned before its irradiation.Keywords: polyaniline, dosimetry, conductor polymerFile: E01_518.pdf

DOSIMETRY WITH RADIOCHROMIC MATERIALS IN ACCELERATEDELECTRONS FIELDS – HIGH DOSE PROCESSES

Barbara M. Rzyski, Rosemary E. da Silva, Ana Maria S. Galante

Abstract: Radiation dosimetry, i.e., the measurement of the dose, is fundamental in all irradiation processes, beingrecommended for laboratories and industrial scale irradiation plants for routine control, so that any irradiation can be inagreement with the established patterns in the process of dose measurement. This work is dedicated to the study ofsome of the main dosimetric characteristics of radiochromic films as FWT-60.20 (colored nylon), HD-810 (coloredplastic) and Sunna (colorless plastic). The possibility of applying these materials in routine dosimetry in an electronaccelerator, whose energy varies from 0,8MeV to 1,5MeV and the current from 0,3mA to 15mA was verified. Theexperiments were concluded in a JOB 188 - Dynamitron Inc. accelerator installed at the Radiation Technology Center,IPEN-CNEN/SP. Analyzed topics involve the best wavelength for optical reading, calibration curves, and influence ofthe environmental conditions as well the evaluation of film response to different electrons energies. The results wereconsidered positive since the films can be applied for absorbed doses determination in routine irradiations processesin this type of electron accelerator.Keywords: dosimetry, radiochromic films, accelerated electronsFile: E01_512.pdf



inac2002VI ENAN

Radiation Protection and DosimetryAVALIAÇÃ0 DE COMPONENTES DE UM PADRÃO PRIMÁRIO PARA FEIXES DE RAIOS-X DE MAMOGRAFIA

Ricardo de Souza Cardoso, Francisco Bossio e José Guilherme P. Peixoto

Abstract: Each level reached inside of a typical structure of the international network of metrology, as the primarystandardization for example, needs a larger metrological reliability, in other words, a larger trust degree or certainty ofthe tests results, analyses and measurements; in this sense the developed work aims the knowledge of the constructionand operation of the cylindrical free-air ionization chamber of variable volume to elaborate a technical manual that willallow detection of operation problems during the tests to which the chamber will be submitted to check its performance.Keywords: free-air chamber, primary standard, traceableFile: E01_716.pdf

CALIBRAÇÃO DE UM APLICADOR DERMATOLÓGICO DE 90Sr+90Y

Mércia L. Oliveira e Linda V. E. Caldas

Abstract: 90Sr+90Y dermatogical applicators are widely used in the treatment of skin lesions. Despite calibrated by themanufacturers, these sources must be re-calibrated periodically by standard laboratories. Articles published by differentauthors show the discrepancies between manufacturers and standard laboratories calibrations of 90Sr+ 90Y applicators.Ionization chambers with variable volume, named extrapolation chambers, are utilized for the calibration of such sources.An extrapolation chamber was developed at IPEN for the calibration of 90Sr+ 90Y dermatogical applicators. This chambershows a good performance in the detection of beta particles. The aim of this work is to establish and to apply a routinecalibration procedure to a dermatological applicator, based on former work developed in this institution.Keywords: extrapolation chamber, beta radiation, dermatological applicator.File: E01_521.pdf

DEPENDÊNCIA ANGULAR DE MONITORES PORTÁTEIS EM FEIXES PADRONIZADOS DE RADIAÇÃO GAMA

Vitor Vivolo e Linda V. E. Caldas

Abstract: A serie of type tests recommended by international standards was applied to several gamma radiation monitoringsurvey meters (Geiger-Müller type, ionization chambers and a scintillator) commonly used in Brazil. The objective wasto establish a routine test methodology to be applied to new and repaired instruments. The tests included the verificationof angular dependence, and the response variation with zero drift.Keywords: portable survey meters, gamma radiation, type tests.File: E01_684.pdf

PROGRAMA DE MONITORAÇÃO OCUPACIONAL DA UNIDADE DE CONCENTRADO DE URÂNIO

DE CAETITÉ (URA)-BA, BRASIL: PROGRAMA DE BIOANÁLISE

Delcy de Azevedo Py Junior e Wagner de Souza Pereira

Abstract: The principal aim of bioassay monitoring program in Uranium Concentrate Unity, URA, in Caetite is themaintenance of acceptably safe and satisfactory working conditions, according to national and international norms.Specifically, the objective is to interpret measurements in terms of intake of uranium and committed effective dose, sothat the results can be used to demonstrate compliance with the system of dose limitation and, mainly, the optimizationof radiation protection. The employed technique is the measurement of uranium in excreta from workers in mine,crushing and uranium concentrate production areas. In conclusion, workers from mining and crushing areas should bemonitored by the routine program; urine and feces samples should be analyzed by mass spectrometry, with ICP-MS.The operational monitoring program should be carried out in workers from uranium concentrate production area; urineand feces samples should be analyzed by less expensive techniques.Keywords: biokinetic, uranium, monitoring, intake, dose.File: E01_594.pdf



inac2002VI ENAN

Radiation Protection and DosimetryIMPLEMENTATION OF ABSORBED DOSE STANDARDIZATION AT THERAPY-LEVEL IN BRAZIL

Laura Natal Rodrigues

Abstract: At the present moment, IAEA presented the final document of the new International Code of Practice basedon standards of absorbed dose to water, which will be implemented in Brazil gradually, making the transition from theexisting Code of Practice (IAEA 1987) in the country. At Nuclear and Energy Research Institute (IPEN/CNEN/SP) andat National Laboratory for Metrology of Ionizing Radiation (IRD/CNEN/RJ), where the possibility of having an acceleratoris remote, the approach used is to provide users with a calibration factor in terms of absorbed dose to water for theionization chamber at the reference quality 60Co and theoretically derived quality correction factors for that chambertype which must be applied for other beam qualities.Keywords: absorbed dose standards, dosimetry protocols, secondary standardization.File: E01_660.pdf

DESENVOLVIMENTO DE UM SISTEMA DE DOSIMETRIA POR DIODO PARA OCONTROLE DA QUALIDADE DE UNIDADES DE TELETERAPIA

Gelson Pinto dos Santos e Cléber Nogueira de Souza

Abstract: A diode dosimetric system was developed and tested for quality control of photon and electron beams asused in radiotherapy. The following tests were done: repeatability and reproducibility, linearity, degradation with doseand response with the field size. These results were compared with the response of ionization chambers. For the mosttests, the diode system presented similar response of it, which demonstraded its viability for clinical dosimetry use. Aquality assurance program for a multi-beam accelerator was proposed as an example of its application in a routine usefor a radiotherapy service. Besides its practicability of using, the system presents the advantage of low cost, comparedto imported system in use nowadays.Keywords: quality assurance radiotherapy, quality control, relative dosimetry, photodiode, low-cost.File: E01_680.pdf

AVALIAÇÃO DA EXPOSIÇÃO INTERNA A K-40 DOS RESIDENTES DA CIDADE DO RIO DE JANEIRO

Eliane E. Santos, Dejanira C. Lauria , Eliana C. S. Amaral e Laércio L. Carvalho

Abstract: Among the naturally occurring radionuclides 40K is the highest contributor for the intake dose. The aiming ofthis research was to determine the activity concentrations of 40K in the main consumed foodstuffs by the adult inhabitantsof Rio de Janeiro city in view of estimating its daily intake and arisen intake dose. The 40K activity concentrations in thefoodstuffs ranged from 20 to 544 Bq/kg fresh and the estimated daily intake was 61 Bq. The highest contribution for itsintake arises from consumption of bean (35%), beef (11%), potato (8%) and rice (8%). The total annual effective dosewas estimated to be 138 µSv/a. Value that falls into the range of international literature reported value (from 122 to 200µSv/a).Keywords: daily intake, potassium-40, radionuclide; foodstuffsFile: E01_618.pdf

A-TYPE APATITE/ESR DOSIMETRY IN THE THERAPY DOSE LEVEL TO PHOTONS

Liana M. de Oliveira and Laura N. Rodrigues

Abstract: In this report is evaluated the response of the apatite powder ESR dosimeter irradiated with 60Co photons inthe 0.2-100 Gy range. The specific material was developed in a previous systematic study, which established thecorrelation between synthesis process, structural and dosimetric properties of the A-type synthetic apatite. An excellentlinear fit was obtained to the dose response in the therapy level. Sources of the uncertainty intrinsic to the dosimeterand to the ESR technique was evaluated showing the excellent precision level achievable with the apatite powderdosimeter. Improvements can be performed to increase dosimeter accuracy.Keywords: A-type apatite, dosimetry, ESR, radiotherapyFile: E01_690.pdf



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DISSEMINAÇÃO DE 137Cs NA ÁREA URBANA DE GOIÂNIA POR RESSUSPENSÃO E

TRANSPORTE DE SOLO SUPERFICIAL

Mônica Pires do Rio e Eliana Amaral

Abstract: The resuspension of surface soil was considered the mechanism responsible by the spreading of 137Cs afterthe Goiânia accident, which affected an urban area of about 1 km2. Studies on the transport of 137Cs associated to thesurface soil were performed in a house located at 57th Street, close to the main focus of contamination, from 05/89 to07/00. Periodically, samples of surface soil and soil profile were collected at the house yards and street dust samplingat representative locations was performed in order to know the extension of the contamination in the city. The soilprofile samples have shown the low mobility of 137Cs in deep layers of the soil, although a slight long-term decrease ofthe 137Cs activity concentration in the surface soil were observed. The 137Cs activity concentration in the street dustsamples also decrease with time, suggesting a natural dilution of the contamination in those samples; higher valueswere only found in few locations close to the foci of primary deposition and no additional spreading of the radionuclideis expected to occur from that area. Street dust sampling is a suitable method to assess the spreading of caesium inurban environment.Keywords: resuspension; Cesium-137; urban environment; Goiânia accident.File: E01_689.pdf

DOSIMETRÍA DE ALTAS DOSIS Y CONTROL DE LA CALIDAD DEL PROCESO DE IRRADIACIÓN EN EL CEADEN

Enrique Francisco Prieto Miranda, Gisela Barrera González, Marina Lima Ferreira

Abstract: In the Center of Technological Applications and Nuclear Development (CEADEN) meet the High Dose Dosimetryand Radiation Chemistry Laboratory, it which provides one self-shelding laboratory irradiator with cobalt-60 sources,kind PX-γ-30, it is destined in order to carry out basic and applied researches in several branches of the science likethe Radiobiology, the Radiation Chemistry , the Solid State Physics, the Medicine, the Agriculture and the medical-pharmaceutical Industry . In the present paper is shown a description of the radiation facility , the research themes, thedifferent services that offer, as well as the results obtained of the studies carried out in the dosimetric techniquesemployed as the Fricke , ceric-cerous sulphate, Perspex dosemeters and dose indicators. Also the results of theintercomparison dose exercises and the Quality System are shown.Keywords: irradiator, quality system, dosimetric systems, dose intercomparison.File: E01_765.pdf

APLICAÇÃO DO SISTEMA INTEGRADO DE AVALIAÇÃO DE IMPACTO RADIOLÓGICO AMBIENTAL

EM SITUAÇÕES DE EMERGÊNCIA PARA A AVALIAÇÃO DA EXPOSIÇÃO RADIOLÓGICA DE

POPULAÇÕES DE ÁREAS URBANAS

Maria Inês C. Vetere, Elaine R. R. Rochedo, Luiz Fernando C. Conti

Abstract: An integrated computational system for environmental radiological impact assessment in emergency situationshas been developed at IRD/CNEN. This system has been used, in this paper, to assess the exposure to members ofthe public, in a urban area, after the release to the environment of radionuclides that may be relevant after a severenuclear accident with a PWR reactor. Doses were calculated, for the short and long terms, for the radionuclides 137Cs,134Cs, 129I, 131I, 133I, 89Sr, 90Sr, 103Ru and 106Ru. The study also simulates the application of some protective measuresaiming the estimate of dose reduction, taking into account the moment of their implementation. The starting point for thesimulation is the activity deposited on the ground and on urban surfaces and includes the ingestion of home grownproducts, such as green vegetables, legumes and chicken. This paper is part of a program to derive tools for planningof emergency attendance, taking into account the present knowledge about the fate of radionuclides delivered to theenvironment, based on estimates of exposure, for the protection of population in tropical climate environments.Keywords: radiological impact, environment, urban area, accidentFile: E01_448.pdf




inac2002VI ENAN

Radiation Protection and DosimetryCÁLCULO DOS FATORES DE CONVERSÃO DE KERMA NO AR PARA EQUIVALENTE DE DOSE AMBIENTAL

PARA FEIXE MONOENERGÉTICO DE FÓTONS ENTRE 0,01 MeV e 50 MeV

Marco A. F. Lima, Ademir X. da Silva, Verginia R. Crispim, Helvécio C. Mota

Abstract: The International Commission on Radiological Protection, presented news conversion factor of kerma in air,Kar, to the ambient dose equivalent, H*(d), using monoenergetics fótons beam in the range of 0.01 to 10 MeV. This workpresents results for the same conversions factors mentioned above, but only to the monoenergetics photons beam to50 MeV contributing this way for future works. The method used to obtain the results was the Monte Carlo code MCNPversion 4(2).Keywords: conversion coefficients, MCNP-4B, fluence, ambient dose equivalent.File: E01_134.pdf

PROTEÇÃO RADIOLÓGICA EM CLÍNICAS ODONTOLÓGICAS: EXEMPLO DE METODOLOGIA DE INSPEÇÃO

José Geraldo de Castro e Teógenes Augusto da Silva

Abstract: The compliance with the radiation protection requirements was investigated at dental clinics with x-ray machinesin Juiz de Fora, MG. A questionnaire was elaborated based on national proposal from the regulatory body and appliedonly to dental clinics formally registered to the Regional Council. Data were obtained from the technical responsiblestaff, visual inspections on equipment and facilities. Results suggest that there is a gap between the staff perceptionand the reality as far as the compliance with the radiation protection requirements. As the application of a questionnaireis not enough to indicated the clinic radiological situation, an analysis methodology is proposed.Keywords: conversion coefficients, MCNP-4B, fluence, ambient dose equivalent.File: E01_296.pdf

MODELO DE VOXEL PARA AVALIAÇÃO DOSIMÉTRICA APÓS ADMINISTRAÇÃO DE 131I

Alexandre Cássio Guimarães e Tarcísio P. R. Campos

Abstract: This paper presents a computational model namely DIMV (Internal Dosimetry based on Multi-Voxel) to evaluatethe dose distribution in tissues and organs of a patient submitted to radioiodine therapy. The DIMV provides dosimetricevaluations personally for each patient, and should be a powerful tool in the daily routine. The dosimetric evaluation isbased on the Monte Carlo code - MCNP. Radiological images (CT, MRI, cintilography) from the patient, coupled toinformation about chemical composition of the tissues and organs are the input date for DIMV. The system works as apre-processor preparing data to MCNP code. A case example is provided.Keywords: conversion coefficients, MCNP-4B, fluence, ambient dose equivalent.File: E01_314.pdf

CARACTERIZAÇÃO E CALIBRAÇÃO DE DOSÍMETROS DE EXTREMIDADE PARA FEIXES DE

RADIAÇÃO BETA EM TERMOS DO EQUIVALENTE DE DOSE PESSOAL

Emiliane Advíncula Malheiros,Teógenes Augusto da Silva Arno Heeren de Oliveira

Abstract: Two extremity personal dosimeters were type tested and calibrated to measure the personal dose equivalent,Hp(d), at 0.07 mm depth, at beta particle fields from a 90Sr+ 90Y radiation source. One dosimeter is a graphite mixedCaSO4:Dy thermoluminescent (TL) detector in the Harshaw /Bicron Ext-Rad ring; the other is a LiF:Mg,Ti TL detector ina velcro ring. Type tests were carried out to verify the detection limit, linearity, and the angular dependence of bothdosimeters. Dosimeters were used to evaluate the personal dose equivalent of operators who deal with 90Sr+ 90Yophthalmic and dermatologic applicators at a betatherapy service. Results suggest that the CaSO4:Dy dosimeter ismore reliable and adequate for measurements at beta radiation fields than the LiF:Mg,Ti dosimeter which shows atrend to subestimate the values of H p(0.07).Keywords: extremity dosimetry, beta dosimetry, personnal monitoring, TL detectorsFile: E01_085.pdf



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Radiation Protection and DosimetryIMPLEMENTATION OF A MAMMOGRAPHY CALIBRATION SYSTEM

J. G. P. Peixoto, C. E. de Almeida

Abstract: The main responsibility of Secondary Standard Dosimetry Laboratories - SSDL is to establish the metrologicallink between the Primary Standard Dosimetry Laboratories - PSDL and the hospital users. It should also providecalibration data and technical advice to guarantee the basis for a quality control program i.e. for clinical mammographyunits. A systematic and practical approach present by Peixoto and de Almeida [1] for the implementation of a calibrationsystem uses a constant potential x-ray unit or a clinical mammography x-ray, with tungsten, molybdenum and rhodiumanodes. The experimental procedures, calibration parameters, including the uncertainty analysis shall be described.The experimental procedure was conducted using a RADCAL model 10X5-6M-3 S/N 8590 previously been calibratedagainst the IAEA standards. It is useful to mention that the radiation qualities may differ slightly among the exixtinglaboratories that provides mammography calibration service at the momentThe calibration procedures are in full accordance with the International Standard IEC 61674 and AAPM recommendationswith an agreement to within better than 5 % in the HVLs’ range from 0.25 to 1.0 mm Al.Keywords: mammography, uncertainty, calibration proceduresFile: E01_389.pdf

EVOLUÇÃO DA MONITORAÇÃO AMBIENTAL COM TLD NO IRD

Claudia Lucia de Pinho Mauricio, José Moura Júnior, Marcelo Marques Martins, Nilton Ferreira Meira,Ricardo Diz, Rosângela Pinto Guimarães Seda e Sérgio Alves Gonçalves

Abstract: Laboratório de Dosimetria Termoluminescente of Departamento de Monitoração Individual of Instituto deRadioproteção e Dosimetria (LDT/DEMIN/IRD) does TLD measurements of environmental exposure at 25 years. Inthis work it is presented the history of its environmental monitoring system up to now, including modifications in: detectors,thermal treatment system, thermoluminescent readers, procedures and algorithms for exposure calculation. Nowadays,the laboratory supplies 3 types of environmental monitors: with TLD-100 only, with TLD-100H only or mixing the twoTLD types, subject to the application. The monitors are used in 5 control programs of CNEN licensed facilities and in aprivate mining pre-operational program. The results obtained by the LDT/DEMIN/IRD in international intercomparisonsshow the excellent performance through the years in the environmental monitoring program.Keywords: environmental dosimetry, TLD, LiF:Mg,Ti, LiF:Mg,Cu,P, thermoluminescenceFile: E01_534.pdf

CALCULATION OF RED BONE MARROW EQUIVALENT DOSE TO THE MAX (MALE ADULT VOXEL)

MODEL FOR EXTERNAL EXPOSURES TO PHOTONS

Vieira, J. W.; Lima, Fernando R. Andrade and Kramer R.

Abstract: When it comes to the determination of equivalent dose in organs and tissues of the human body, dose to thered bone marrow (RBM), one of the most sensitive tissues to radiation, always requests special dosimetric efforts dueto its location in small cavities enclosed in some parts of mineral bone. Heterogeneous distribution of RBM mass withinthe skeleton, a significant difference of density between RBM and mineral bone, and a dosimetrically complicated“transition zone problem” caused by the irregular cavity distribution within mineral bone have to be taken into accountin the calculation of equivalent dose to the RBM. The recently developed MAX (Male Adult voxel phantom) was used tointroduce a newly developed method of calculating equivalent dose to the RBM, which takes advantage of the informationabout the ratio of RBM to mineral bone held by the CT (grey) value of each skeletal voxel as shown in the original CTimage. This study describes the application of this new concept for bone dosimetry in the MAX. Equivalent doseconversion coefficients for RBM are presented and compared to the results of the older method as well as to datacalculated for other phantoms.Keywords: radiation protection dosimetry, red bone marrow, conversion coefficientsFile: E01_745.pdf



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Radiation Protection and DosimetryMONITORAÇÃO INDIVIDUAL DE EXTREMIDADES: 30 ANOS DE EXPERIÊNCIA

Rosângela Pinto Guimarães Seda, Claudia Lucia de Pinho Mauricio, José Moura Júnior, Marcelo Marques Martins,Nilton Ferreira Meira, Ricardo Diz e Sérgio Alves Gonçalves

Abstract: The Thermoluminescent Dosimetry Laboratory of the Departamento de Monitoração Individual of the Institutode Radioproteção e Dosimetria (LDT/DEMIN/IRD) is one of the first extremity individual monitoring service in Brazil. Inits 30 years of activities, the laboratory has ever made a great effort to be continuously updated. Equipment andprocedures have been updated and optimized in order to guarantee the quality of all measurements. Nowadays, theextremity individual monitoring service evaluates monthly around 300 occupational doses in worker’s hands of severalBrazilian facilities in the fields of health, industry (including power reactor) and research. It is used a dosimetric ring withLiF:Mg,Ti thermoluminescent detectors (TLDs) from Harshaw/Bicron, named TLD-100. The Service helps the effectiveoccupational control of the Brazilian works, which handle radioactive material or has their hands more exposed thanthe body.Keywords: photon extremity monitoring, ring dosimeter, TLD, LiF:Mg,TiFile: E01_565.pdf

PROJETO DE UM MONITOR INDIVIDUAL PARA AVALIAÇÃO DA DOSE EM TERMOS DE Hp (0,07) NAS MÃOS

Nilton F. Meira, Paulo G. da Cunha e Claudia L. P. Maurício

Abstract: This work presents the development of an individual extremity monitor for hand dose evaluation in personaldose equivalent HP(0,07). The project fulfils requirements of the ISO/FDIS 12794 standard and presents additionalcharacteristics such as: use comfort, low cost and sterilization possibility. The monitors were produced by polypropylene(PP) injection. The monitor consists of a flexible finger ring, adjustable to several finger sizes. It contains a cavity wherecan be housed most of the commercial TLD, commonly used in individual dosimetry, within the limits of its dimensions.The PP high chemical resistance allows the sterilization of the set. For the production of a monitor prototype batch aninjection mold was manufactured, with one cavity, in carbon steel. A batch of prototype monitors was injected for tests.The detector element used is a LiF:Mg,Ti commercial chip manufactured by Harshaw-Bicron (TLD-100). This individualextremity monitor will be used in the routine monitoring of the Laboratório de Dosimetria Termoluminescente in theDepartamento de Monitoração Individual of Instituto de Radioproteção e Dosimetria (LDT/DEMIN/IRD).Keywords: extremity monitoring, finger ring dosemeter, TLDFile: E01_569.pdf

MAX – A MALE ADULT VOXEL MODEL FOR RADIATION PROTECTION DOSIMETRY

Kramer, R., Vieira, J. W. and Lima, Fernando R. Andrade

Abstract: Models or phantoms used in Monte Carlo computer codes are representations of the human body, designedto allow equivalent dose calculations in organs and tissues. Mathematical phantoms (MIRD-5, ADAM, EVA, etc.), inshape and form a rather limited representation of a real human body, have been widely used in the past to calculateconversion coefficients between equivalent dose to relevant organs and tissues of the human body and measurablequantities for various types of radiation and field geometries. Progress of image processing, clock speed and memorycapacity of computers over the last 20 years made it possible to create the so-called voxel phantoms, which are a morerealistic representation of the human body. Voxel (Volume pixel) phantoms are constructed from segmented CT and/orMRI images of real persons. A complete set of such images can be joined to a 3-dimensional representation of thehuman body, which can be linked to a Monte Carlo computer code to allow particle transport calculations.This study describes the modifications done to the VOX_TISS8 human voxel phantom (YALE University) in order tocreate the MAX (Male Adult voXel) phantom whose organ and tissue masses correspond better to the data recommendedby ICRP in Publications No. 23 and 70.Keywords: radiation protection dosimetry, Computational phantoms, ICRP Reference ManFile: E01_744.pdf



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Radiation Protection and DosimetryEFEITO DA DOPAGEM COM LÍTIO NO SINAL INDICADOR DE DOSE (RADICAL CO

2

-) EM DOSIMETRIA POR RPE DECARBOAPATITAS SINTÉTICAS DO TIPO B

Marcus A. V. de Alencar; Edgar F. O. de Jesus; Alexandre M. Rossi

Abstract: In this work it was studied the influence of the doped with lithium (Li) in the dose signal line of the B-typesynthetic carboapatite irradiated with gamma radiation. The B-type carboapatite was synthesized in a aqueous wayand the doped of the synthetic carbonated apatite was reached by the sorption of the lithium, in the nitrate form, inaqueous solution. The samples were irradiated with gamma radiation from the 60Co to a dose of 1000 Gy. The EPRspectrum the doped sample is similar to the spectrum of the pure caboapatite, being constituted by the CO2

- specieswith orthorrhombic symmetry, by the CO- and H-CO- species with axial symmetry and by the unstable CO3

- species.the presence of the lithium in apatite alters the number of CO2

- species created by irradiation, increases the intensityEPR signal of the species CO2

-. The sorption of Li also supplied larger stability to the CO2- species in relation to pure

sample. The presence of the metals in the surface of the carboapatite crystals doesn’t alter the CO2- signal fading type,

first order exponential decay, however the decay constants differ between the doped sample and pure sample. Theseresults indicate that the dose determination with the Li doped carboapatite can be overestimated if the dose value beobtained immediately after the irradiation of samples or before the EPR spectra stabilization.Keywords: EPR, carbonated hydroxyapatite, lithium hydroxyapatite, CO-

2 radicals, dosimetry.File: E01_053.pdf

MONITORAÇÃO INDIVIDUAL DE NÊUTRONS: 18 ANOS DE EXPERIÊNCIA

Sérgio Alves Gonçalves, Claudia Lucia de Pinho Mauricio, José Moura Junior, Marcelo Marques Martins,Nilton Ferreira Meira, Ricardo Diz e Rosângela Pinto Guimarães Seda

Abstract: The Thermoluminescent Dosimetry Laboratory of the Departamento de Monitoração Individual of the Institutode Radioproteção e Dosimetria (LDT/DEMIN/IRD) is the only one in Brazil that operates routinely a whole body externalindividual monitoring service for neutrons. An albedo type monitor is used with thermoluminescent detectors pairs of6LiF:Mg,Ti and 7LiF:Mg,Ti, made by Harshaw/Bicron and named, respectively, TLD-600 and TLD-700. In its 18 years ofactivities, the laboratory has ever made a great effort to be continuously updated. Equipment and procedures havebeen updated and optimized in order to guarantee the quality of all measurements. Nowadays, the neutron individualmonitoring service evaluates doses of about 300 workers occupationally exposed to neutrons in several facilities ofdifferent areas of Brazil. The system history and the results obtained by the service in international intercomparisonsand in its routine monitoring are presented in this work.Keywords: neutron individual monitoring, albedo dosimeter, TLD, 6LiF:Mg,Ti, 7LiF:Mg,Ti.File: E01_566.pdf

USO DE FOTOTRANSISTORES PARA MEDIDA DAS CARACTERÍSTICAS DOSIMÉTRICAS DE FEIXESDE RAIOS-X UTILIZADOS EM RADIOCIRURGIA ESTEREOTÁXICA

Walter M. Santos, Clovis A. Hazin, Cleber N. de Souza, Luiz Antonio P. dos Santos e Eronides F. da Silva Jr

Abstract: Small X-ray beams are normally used in radiosurgery for the treatment of small intracranial lesions. Thesuccess of the treatment relies on the adequate planning, which in turn requires accurate evaluation of the radiationbeam characteristics such as Percentage Depth Dose (PDD), Output Factor (OF) and Tissue-Maximum Ratio (TMR).However, the dosimetry of small X-ray fields is not a straightforward procedure, because the dimensions of the detectorsnormally used are not small enough so that their sensitive volumes are completely covered by the radiation beam, aswell as to assure that electronic equilibrium conditions are attained. In this work, we have tested a transistor-typeelectronic device to be used as photodetector to determine some of the dosimetric parameters of a 6-MV linear acceleratorused for radiosurgery. The results show that, under certain conditions, such a semiconductor device can be used forevaluating the dosimetric characteristics of small radiation beams used in radiosurgery.Keywords: radiosurgery, dosimetry, phototransistorFile: E01_578.pdf



inac2002VI ENAN

Radiation Protection and DosimetryNEUTRON AND GAMMA RAY DOSE EQUIVALENT ESTIMATES FOR THE IEAV LINEAR ACCELERATOR

Wilson José Vieira, Luiz Henrique Claro, Shizuca Ono and Artur Flávio Dias

Abstract: The IEAv Electron Linear Accelerator may be used to obtain neutron and gamma radiation sources forvarious experiments, including radiation damage in materials, neutron activation analysis, and others. Therefore,the estimate of the dose equivalent due to neutrons and gamma rays is of utmost importance for radiation protectionand for the safe operation of the facility. In this work, the electron-photon-neutron generation and transport are simulatedfor a Tantalum target. The neutron source and neutron dose equivalent were estimated in a previous work. However,the photon dose equivalent is far more important because of the small photoneutron yield. Furthermore, a few dosepoints were calculated in the Klystron and modulator floor, which stands above the accelerator gallery.Keywords: electron accelerators, monte carlo simulation, radiation transport.File: E01_170.pdf

VALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137Cs EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOSTROPICAIS

Maria Angélica Wasserman; Daniel Vidal Pérez, Ana Cristina Melo Ferreira, Claudio Carvalho Conti;Elaine Rua Rodriguez Rochedo, Flavia Bartoly; Aline Gonzalez Viana, Glaucio Pereira Moura and Isabel Poquet

Abstract: Recent radioecological studies have showed that some ecosystems present more suitable conditions forsoil to plant transfer of some radionuclides, while others present lower transfer when compared with average values.Due to the difficulty to generate, experimentally, soil to plant transfer factors enough to cover the totality of existing soiland vegetation types, an alternative way has been the use of soil to reference plant transfer factor determined invarious ecosystems. Trough the use of conversion factors, the reference transfer factor can be converted in values oftransfer factor specific for a specific type of crop. These values can be used regionally to improve dose calculationand models for radiological risk assessments. This work presents experimental data for 137Cs for reference cropsgrown up in Oxisol, Ultisol and Alfisol. These results allow the assessment of sensibility of main Brazilian soils regardinga radiological contamination with 137Cs and provide regional parameters values. The results obtained in soils oftropical climate validate the international methodology aiming to derive generic transfer factor values for 137Cs inreference crops based on a few soil properties such as fertility, pH and organic matter content.Keywords: transfer factor, Cs, oxisol, reference plantFile: E01_752.pdf

TRANSFER AND MOBILITY OF 137CS AND 60CO IN OXISOL AND ALFISOL

Maria Angélica Wasserman, Daniel Vidal Pérez, Claudio Carvalho Conti; Flavia Bartoly Aline Gonzalez Viana and Júlio César Wasserman

Abstract: One manner to assess potential mobility of radionuclides in soils is the use of sequential extractionprocedures. These procedures intend to provide the radionuclide partitioning in geochemical phases of soil affectedby changes in physico-chemical conditions. In this study a new sequential chemical extraction protocol was chooseto evaluate 60Co and 137Cs mobility under a large range of physico-chemical soil properties. The results of sequentialprocedure was further compared with soil to plant transfer factors (TF) data for maize and radish and with soil properties,showing rather consistent results. The 137Cs distribution in soil showed that Fe oxides are the main sink for thiselement and after 14 years after contamination the 137Cs was still available for plants. The 60Co distribution showedthat Mn oxides are the main sink for this element in Alfisol and 5 years after contamination no 60Co was detected asbioavailable neither detectable in maize. The knowledge of the bio-geochemical behavior of radionuclides in soilsystem can be useful for risk assessment studies, to be applied in the case of nuclear accident or contaminationscenarios.Keywords: mobility, bioavailability, sequential chemical extraction, cesium, cobalt.File: E01_753.pdf



inac2002VI ENAN

DESIGN, CONSTRUCTION AND CALIBRATION OF PLANE-PARALLEL IONIZATION CHAMBERS AT THE SSDL OFIRAN

M.R. Ensaf, A. Solimanian, H. Afarideh

Abstract: Two plane-parallel ionization chambers (PPICs) have been designed, constructed, tested and calibrated atthe SSDL of Atomic Energy Organization of Iran. The chambers are calibrated in Co-60 and electron beams incomparison with the responses of a reference calibrated cylindrical chamber and a commercial type PPIC. Thispaper presents the design characteristics and the results of calibration of the PPICs as well as dose determination ofelectron beams by air kerma based and absorbed dose to water based dosimetry procedures using these chambers.Keywords: plane-parallel ionization chamber, ionization chamber, dosimetry, electron beams dosimetryFile: E01_079.pdf

ATENDIMENTOS ÀS EMERGÊNCIAS RADIOLÓGICAS NO ESTADO DE MINAS GERAIS

Maria Elizabete Figueiredo e Teógenes Augusto da Silva

Abstract: The Radiological Emergency Attendance Group (SAER) of the Centro de Deenvolvimento da TecnologiaNuclear (CDTN) was reorganized to offer the technical expertise on radiological protection to the community ofMinas Gerais State. Response to many calls during 2000-2001 was provided. This paper describes the adoptedprocedure to look for the two 137Cs bractherapy sources which were lost by a hospital in Belo Horizonte.Keywords: radiological emergency, radiological accidentsFile: E01_298.pdf


2002VI ENAN

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NUCLEARNUCLEARANALYTICALANALYTICALTECHNIQUESTECHNIQUESEE 0202NUCLEARNUCLEARANALYTICALANALYTICALTECHNIQUESTECHNIQUESEE 0202NUCLEARNUCLEARANALYTICALANALYTICALTECHNIQUESTECHNIQUESEE 0202



inac2002VI ENAN

Nuclear Analytical TechniquesCARACTERIZAÇÃO QUÍMICA DE FRAGMENTOS CERÂMICOS ARQUEOLÓGICOS POR MICROFLUORESCÊNCIA

DE RAIOS X (µ-XRF)

Richard Maximiliano da Cunha e Silva, Virgílio Franco do Nascimento Filho,Carlos Roberto Appoloni e Carlos Alberto Perez

Abstract: The concentrations of the inorganic chemical elements presents in archaeological ceramic samples andclay samples allows the study about the clay sources determination used in the ceramic production. The analyzedsamples are fragments of Brazilian indigenous ceramic, found in the area of the city of Londrina, North of Paraná,and they belong to the archaeological collection of the “Padre Carlos Weiss” Historical Museum, of the State Universityof Londrina.The determination of the chemical elements in these fragments was performed by energy dispersive X-raymicrofluorescence (µ-XRF), for being not destructive and multielementar.The analytic technique allowed the identification of the K, Ca, Ti, Mn, Fe minority elements, and the Cr, Ni, Cu, Znand Rb trace elements. The cluster analysis for the method of the medium grouping was used, and it was obtainedtwo different groups, taking to conclude that indigenous Tupiguaranis used two clay sources in the making of itsceramic.Keywords: X-ray fluorescence, archaeological ceramics, µ-XRF, cluster analysis.File: E02_033.pdf

IMPLEMENTATION AND EVALUATION OF k0-INAA FOR ENVIRONMENTAL STUDIES

O. Díaz Rizo, E. Herrera Peraza, I. Alvarez Pellón, M.V. Manso Guevara

Abstract: The k 0-standardization of Instrumental Neutron Activation Analysis (INAA) is particularly powerful method,respect to the absolute and relative methods, on the accuracy of the analytical results - very important characteristicrequired for environmental studies. On the other hand, the well knowledge of different experimental facts (for example,reactor neutron flux characterization and detector efficiency) and some nuclear data of the possible nuclides presentin the sample, are required to implement k0-INAA. Solving these requirements, the k0-INAA can be used for the analysisof environmental samples of different matrices.Some experiences in the implementation and regular use of k 0-INAA are presented in this work. The results of theanalysis of different samples showed that the use of the mentioned method is appropriate for environmental studies.Keywords: neutron activation analysis, k 0-standardization, environment, nuclear reactor, neutron flux.File: E02_069.pdf

DETERMINAÇÃO DO GRAU DE REMOÇÃO DE METAIS TÓXICOS COMO As, Hg, Pb e Cd EM SOLUÇÃO SIMULADADE EFLUENTES INDUSTRIAIS NA PRESENÇA DE “SCAVENGERS” APÓS A IRRADIAÇÃO COM FEIXE DE

ELÉTRONS

M.A. Ribeiro, I. M. Sato, C. L. Duarte, V. L. R. Salvador, M. H. O. Sampa

Abstract: The Advanced Oxidation Process (POA), mainly the ionizing radiation, have became a valuable tool for thetreatment and disinfection of industrial wastewater and for drinking water. The objective of this work is to verify theremoval rate of toxic metals such as As, Hg, Pb and Cd in simulated industrial effluents solutions in the presence andabsence of “scavengers” (EDTA and HCOONa). The simulated solutions received irradiation doses of 100, 200 and500 kGy at Electron-Beam Accelerator. The results presented a high removal rate for metals, As, Hg, and Cd (92, 99and 96%, respectively) with “scavengers” addition. The Pb removal with scavengers presented a low rate 15%, andwithout “scavengers” it was around 28%; It is due to acidity of solution pH around 1.0. The metal determination wascarried out by wavelength dispersion x-ray fluorescence spectrometry technique, using Fundamental Parametersmethod.Keywords: electron-beam, metals removal, scavengers,File: E02_167.pdf



inac2002VI ENAN

RECUPERAÇÃO DE BROMO EM SOLUÇÕES RESIDUAIS GERADAS NA METODOLOGIA DE DETERMINAÇÃOISOTÓPICA DE 15N (RITTENBERG, 1946)

Glauco Arnold Tavares; José Albertino Bendassolli; Gleison de Souza; Felipe Rufine Nolasco;José Aurélio Bonassi; Hugo Henrique Batagéllo

Abstract: The isotopic determination of 15N (Rittenberg, 1946) is a methodology used in the Laboratory of IsotopeStable (CENA/USP). In this procedure, in the oxidation of nitrogen species for N2, solution of LiBrO is used, generatingas residue 50 L y -1 of solution contends LiBr and LiBrO. Seeking to recover the bromine contained in that residue,very toxic substance, a special line was built composed by reaction balloons (1 and 2 liters), addition funnel, gas flowregulator and connections in glass. In the system proposed, after the acidification (sulfuric acid) of the alkaline residualsolution, the liberated bromine (Br2) it was then dragged by flow of nitrogen and reacted with solution of LiOH. Thatreaction facilitated the production of LiBrO in solution (Efficiency = 82±2%), that was reused later on same analyticprocedure. The high cost of the liquid bromine is another attractiveness that corroborates the employment of thedeveloped procedure. They took place isotopic determinations using the recovered solutions and prepared, and theobserved values didn’t show statistical difference (T test of Student). The presented procedure is part of theManagement Program of Chemical Residues of CENA/USP, which seeks to destine the residues of responsibility ofthe institution appropriately, forming professionals to the practices of environmental management.Keywords: bromine, residue treatment, isotopic determination, recuperation.File: E02_183.pdf

ESTUDO ARQUEOMÉTRICO DE CERÂMICAS DO AMAZONAS

Claudia de Vilhena Schayer Sabino, Angela Maria Amaral, Andre Pierre Prous Poirior , Vera Guapindaia

Abstract: There is no evidence of urban civilization in Brazilian prehistory; most inhabitants lived in tribal organization,probably with regional economic integration among several independent tribes. There are few evidences of seasonalmigrations between the coast and the inland of southern Brazil. Some specialized horticulturists competed amongthemselves but other groups lived more isolatedly and probably peacefully, in the upper interfluvial regions.The chiefdom system is supposed to have existed only along the Amazon River. In this region, some pottery makersmay have been specialized craftsmen and finest ceramics, that should have been exported from one village/region toanother, can be found.In this study we tested some limited possibilities in three different cultural and regional contexts to see if applicationof analytic analysis in economically and politically “simple” societies should give any results.Keywords: neutron activation analysis, ceramic pastes, archaeometryFile: E02_197.pdf

DESENVOLVIMENTO DE METODOLOGIA PARA AVALIAÇÃO DE IMPUREZAS EM U3O

8 POR ICP-OES

Marycel Elena Barboza Cotrim; Elâine Arantes Jardim Martins;Elizabeth Sonoda Keiko Dantas; Maria Aparecida Faustino Pires

Abstract: In this work, the study and development of separation method and evaluation of the impurity contained inU3O8 of the section of production of the nuclear fuel element for the reactor IEA-R1 of IPEN-CNEN/SP is reported.U3O8 used in the production of the nuclear fuel element can contain some metals and rare earths as impurity.The chemical process developed at the laboratories of IPEN consists of separation of the impurities of U 3O8 for thetechnique of extraction chromatography and subsequent analysis by ICP-OES.The column was filled with the XAD-16 resin of Amberlite impregnated with TBP for extraction of the uranium and,after the separation, appraised the presence of rare earths by ICP-OES.The recovery was evaluated by standard addition and good results were obtained.Keywords: uranium compounds, ICP-OES, rare earth, extraction chromatographyFile: E02_081.pdf

Nuclear Analytical Techniques



inac2002VI ENAN

FLUORESCÊNCIA DE RAIOS X POR REFLEXÃO TOTAL APLICADA À ANÁLISE DE ELEMENTOS QUÍMICOS EMCHÁ DE ERVA-MATE (Ilex paraguariensis)

Fabio Lopes; Richard M. da Silva e Cunha, Virgilio Franco do Nascimento Filho, Carlos R. Appoloni

Abstract: The purpose was to evaluate simultaneously the chemical element concentrations from K to Sr (19 ≤ Z ≤38) range in six samples of mate tea ( Ilex paraguariensis ) infusion, commercially available in Paraguay and South ofBrazil. The chemical analysis of this beverage has a great nutritional importance for the native people of these areas,due to their large daily consumption.For the determination of these elements the dry-ashing and total reflection X-rays fluorescence (TXRF) were used.The methodology showed limits of detection among 81 ng.mL-1 for K to 10 ng.mL-1 for Zn. Six infusion samples wereprepared in triplicate, and the concentration was 3,8 to 10,2 µg.mL-1 for K, Ca and Mn, 0,21 to 1,07 µg. mL-1 for Feand Zn and 0.03 to 0,17 µg.mL-1 for Ni, Cu, Br, Rb and Sr.The Mn and Ni concentrations are above the maximum permissible values for drinking water established by WorldHealth Organization and Brazilian legislation (these organisms do not regulate the maximum permissible values forchemical elements in mate tea infusion).Keywords: X-ray fluorescence, XRF, total reflection, TXRF, mate tea infusion, chemical elementsFile: E02_208.pdf

REVISÃO DE TRABALHOS E PROPOSTA DE EXPLORAÇÃO DA TÉCNICA DE NEUTRONGRAFIA NO REATORTRIGA IPR-R1 DO CDTN

Antonella Lombardi Costa, Valter Alves de Amorim, Roberto Stasiulevicius e Zildete Rocha

Abstract: Neutron Radiography - NR - consists of obtaining on a sensitive plate, the image produced by neutron fluxafter crossing an object. Through NR is possible to inspect plastics and explosives materials and organic composition.Is difficult to analyze these materials by the radiography technique. The neutron beam extractor was installed, in theTRIGA IPR-R1 reactor at the CDTN. This work presents preliminaries results of the NR researches in the past atCDTN, which are being retaken.Keywords: neutron radiography, TRIGA, IPR-R1, neutron beam, collimator.File: E02_214.pdf

ANÁLISE QUANTITATIVA DE SOLO POR ESPECTROMETRIA DE FLUORESCÊNCIA DE RAIOS X (WDXRFS)

Marcos A. Scapin, Vera L. R. Salvador, Nelson B. Lima e Valdirene O. Scapin

Abstract: Development of the new technologies has been using a lot of substances composed by metals, consequentlygenerating reject for the environment. There is nowadays a concern in management and to control processes thatcontribute to the environmental degradation. This paper has the purpose to establish an analysis method for thequantitative determination of major and trace elements soil used the Technique of Wavelength Dispersion X-rayFluorescence Spectrometry (WDRXFS) and the Fundamental Parameters Method. This method allows calculatingthe theoretical fluorescent intensities obtained by the measured intensities of the elements present in the sample,through the instrumental sensibility. Advantages of this methodology are: use of small amount of sample, accuracyhigh and sensibility in the determinations studied analyte; not use of chemical treatments in the preparation of samples;speed and cost relatively low. Methodology was validated by the analyze of five certified reference materials, CRM-2704 - Buffalo River Sediment (NIST), JB2, JG1 and JG1a - Geological Survery of Japan (GSJ) and SL-3 -LakeSediment (AIEA). An X- Ray Fluorescence Spectrometer RIGAKU was used, RIX 3000, 1996 of the Laboratory X-RayFluorescence, Center of Chemistry and environment of the Institute of Energy and Nuclear Researches of São Paulo.The detection limit for major elements is 0,01-0,2% and trace elements 5 µg/g-100 µg/g. The analytes studied were:SiO2, TiO2, Al2O3, Fe2O3, MnO, MgO, CaO, Na2O, K2O, P2O5, Ag, As, Cd, Ce, Cr, Cu, Ga, Hg, La, Nd, Ni, Pb, Rb,Se, Sr, V, Y, Zn and Zr.Keywords: neutron radiography, TRIGA, IPR-R1, neutron beam, collimator.File: E02_259.pdf




inac2002VI ENAN

DETERMINAÇÃO DE 34S POR ESPECTROMETRIA DE MASSAS (% EM ÁTOMOS), DO S-SULFATO DISPONÍVELEM AMOSTRAS DE SOLO.

Alexssandra L. R. M. Rossete, José A. Bendassolli, Paulo C. O. Trivelin, Milena Bicudo, Deborah C. S. Duarte,Gleuber M. Teixeira.

Abstract: 34S determination in soil samples is used in agronomic investigations, involving the use of 34S tracer in sulfurcycle studies. The tests were accomplished with clay soil in two treatments: T1: fertilized with 48.78 mg S kg -1 andabundance of 9.12 atom % 34S, and T2: control, without S fertilization. The experiment was carried out in pots with 7 kgof soil. The test plant was the soybean. The extraction of residual SO4

-2 using Ca(H2PO4)2 solution as extractor wasdone in soil samples from the treatments T1 and T2, after the harvesting of soybean plants. The extract was filtered andthe S-SO4

-2 concentration was determined by turbidimetric method. After extraction, SO4-2 was precipitated in the BaSO4

form by adding to the solution BaCl2.H2O. Finally, SO2 was obtained on high line vacuous, in V 2O5 and SiO2 presence,at 900ºC temperature. 34S determination (atom %) in the SO2 was carried out at the mass spectrometer ATLAS-MATmodel CH4. The average of concentrations of S-SO4 available in T1 and T2 were 37.3 ± 1.7 and 15.6 ± 2.0 mg kg -1,respectively. 34S abundance were 6.04 ± 0.25 and 4.56 ± 0.02 atom %, respectively, for the treatments T1 and T2.Keywords: sulfur-34, stable isotope, soil samples, isotope analyses, mass spectrometerFile: E02_276.pdf

SÍNTESE DE COMPOSTOS ORGÂNICOS ENRIQUECIDOS EM 15N

Claudinéia Raquel de Oliveira; José Albertino Bendassolli; Clélber Vieira Prestes; Glauco Arnold Tavares

Abstract: The aim of this work was to develop urea-15N and glycine-15N synthesis for agronomic and biological studies.The production of these compounds was evaluated due to the fact of increasing use of urea, comparing to others solidfertilizers and the importance of glycine in the studies of protein metabolism. A non-conventional method was carriedout to synthesize urea. The process involved reaction among Co, NH3 anidrid and S at low temperature (100oC) and ofpressure (0,81mPa) compared to the conventional method. Monolise halets reaction was carried out for glycine synthesiswith cloroacetic and ammonia 2 o C. Both compounds are economic viable, they can be produced at a lower price thanthe trade market one.Keywords: stable isotope, urea-15N, glycine-15NFile: E02_278.pdf

OBTENÇÃO DO GESSO AGRÍCOLA MARCADO NO 34S (Ca34SO4.2H

2O), POR REAÇÃO QUÍMICA ENTRE O H

234SO

4

E O Ca(OH)2

Alexssandra L. R. M. Rossete, José A. Bendassolli, Raquel de Fátima Ignoto, Hugo Henrique Batagello

Abstract: The gypsum (CaSO4.2H2O) has double function in the soil: as source of calcium and sulfur and reducingagent of aluminum saturation. The sulfur for the plants has acting in the vital functions and it is proven fact increase ofthe S deficiency in Brazilian soils. The isotope tracer 34S can elucidate important aspects in the sulfur cycle. TheCa34SO4.2H2O was obtained by chemical reaction between Ca(OH)2 and H 2

34SO4 solution. The acid was obtained bychromatography ionic change, using cationic resin Dowex 50WX8 and Na2

34SO4 solution. The reaction was realizedunder slow agitation. After the reaction, the precipitate was separated and dried in ventilated stove at 60ºC temperature.The Mass of the Ca34SO4.2H2O Produced was determined by method gravimetric. This way, a system contends resin426 cm3, considering volume of 2.2 liters can be obtained a solution contends 44.2g of H 2

34SO4, theoretically could beproduced 78.0 g of Ca34SO4.2H2O approximately. With results of the tests were verified that there was not total precipitationof the Ca34SO4.2H2O. Were produced 73.7 ± 0.6 g of Ca34SO4.2H2O representing average income 94.6 ± 0.8 %. Thepurity of the produced CaSO4.2H2O was 98%.Keywords: sulfur-34, gypsum, stable Isotope, isotope analyses, chromatographyFile: E02_280.pdf




inac2002VI ENAN

APLICAÇÃO DA FLUORESCÊNCIA DE RAIOS X (WDXRFS) PARA A DETERMINAÇÃO DA ESPESSURA DEFILMES FINOS

Valdirene O. Scapin, Marcos A. Scapin, Vera L. R. Salvador, Nelson B. de Lima,Solange E. Mitani e Ricardo E. Samad

Abstract: Establishment of a method for the quantitative determination of the thickness of a thin films nickel simple onglass substrate, using the Technique of Wavelength Dispersion X ray fluorescence Spectrometry (WD-XRFS) and theMethod of Fundamental Parameters. The advantages of using this technique are: precision, high sensitivity, nondestructive analysis. A RIGAKU X ray fluorescence spectrometry was used, model RIX 3000, 1996 of the X rayFluorescence Laboratory, Chemistry and Environment Center of the Instituto de Pesquisas Energéticas e Nucleares -IPEN - CNEN/SP. Films were obtained through the process of Physical Vapor Deposition (PVD) in the Thin filmsLaboratory, Laser and Applications Center of the Instituto de Pesquisas Energéticas e Nucleares - IPEN - CNEN/SP.Samples were analyzed with thickness between 10 - 100 nm and the results were satisfactory when compared with thetechnique Physical Vapor Deposition and theoretical values by mathematical expression for the calculation of thicknesses.Keywords: thin film, X ray, WDXRF, thicknessesFile: E02_289.pdf

DETERMINAÇÃO DOS PARÂMETROS NUCLEARES α , f E TEMPERATURA DE NÊUTRONS NO REATOR TRIGAMARK I IPR R1.

Milton Batista Franco e Claudia de Vilhena S. Sabino

Abstract: This research intends to determine the nuclear parameters α, f and neutron temperature in several irradiationspositions of the TRIGA MARK I IPR-R1 reactor, to implant the parametric method k 0 of neutrons activation analysis inthe CDTN. At the time the parameters were determined at the rotatory rack, lower layer and in the central thimble: αwas calculated applying the three bare monitor method using 197Au, 94Zr and 96Zr; f determination was done accordingto the bare bi - isotopic method; neutron temperature was calculated through the direct method using 176Lu, 94Zr, 96Zrand 197Au and the Westcott’s g(Tn) function for the 176Lu was calculated and the result was interpolated in the GRINTAKISTable [6], determining the neutron temperatureKeywords: neutrons activation, parametric method, k 0.File: E02_365.pdf

APLICAÇÃO DA ANÁLISE POR ATIVAÇÃO COM NÊUTRONS PARA DETERMINAÇÃO DE FERRO EMFORRAGEIRAS USADAS NO SISTEMA INTENSIVO DE PRODUÇÃO DE BOVINOS DE LEITE

Maria José A. Armelin e Odo Primavesi

Abstract: Iron is an essential element to the life. It is an important hemoglobin component and it is involved in thetransport of oxygen to cells. A deficiency of iron results in an unsuitable synthesis of hemoglobin and a delay in thegrowth. Iron contents above the tolerable level in animal feed can cause serious damages to the health and the deathin extreme cases.The forages are the main source of feed to cattle in grazing. It is known from the literature, that the growth and thenutritious value of the forage are influenced by specie and physiologic age of the plant, soil fertility and environmentalconditions. Therefore, an agronomical evaluations of the forages are necessary before to introduce in an intensivecattle production systems to program adequate grazing management.Neutron activation analysis (NAA) was applied to evaluate the Fe concentration in the main tropical forage grassesused in intensive dairy cattle production systems in São Carlos, SP, Brazil. Iron concentrations were smaller in the rainseason than in the dry one. Comparison of results obtained in the analyses of forages with daily requirements of iron indry matter, showed that the Fe concentration in forages was adequate.Keywords: neutron activation analysis, iron, soil, forage.File: E02_428.pdf




inac2002VI ENAN

COMPOSIÇÃO QUÍMICA DE SOLO E BIOSSÓLIDO PELA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X

Helder de Oliveira, Adriana Furlan, Virgílio F. Nascimento Filho e Gabriel Adrian Sarries

Abstract: The objective of the present work was to investigate the chemical composition of biosolid and soil treatedwith biosolid using the energy dispersive X-ray fluorescence. The elements Br, Co, Cr, Cu, Fe, Ga, Mn, Ni, Pb, Se, Sr,Ti and Zn were quantified and the results had been compared with Brazilian legislation. The Ni, Cu, Cr and Znamounts were below the maximum values allowed.Keywords: XRF, biosolid, elementary compositionFile: E02_299.pdf

APLICAÇÃO DA NAA NO ESTUDO DO COMPORTAMENTO GEOQUÍMICO DE ELEMENTOS DE INTERESSE EMSEDIMENTOS LACUSTRES DE UMA ESTAÇÃO DE TRATAMENTO DE ESGOTO

Andreza P. Ribeiro, Ana Maria G. Figueiredo, Joel B. Sígolo, Rubens C. L. Figueira

Abstract: Neutron activation analysis have been employed to determine 24 elements in bottom sediments from onelake of the Wastewater Treatment Plant (WTP) of Barueri, SP, aiming to verify a possible contamination of this lakedue to the wastes produced in the plant. The results obtained were compared with the concentration determined insoil profile and in a sample of rock, in natura, representing the litologies of the region. Analysis was used in dry andwet seasons. The analysis of the data did not show a significant variation in concentration levels during the differentperiods, except for As. The results obtained showed a homogeneous distribution of the elements all along the lakeand indicate that only As, Cr and Zn can have their origin associated with the residues disposed around the lake.Keywords: NAA, lake sediments, heavy metalsFile: E02_371.pdf

ANÁLISE DE ELEMENTOS MAIORES E MENORES EM SOLOS POR ATIVAÇÃO NEUTRÔNICA EFLUORESCÊNCIA DE RAIOS X

Claudia Petronilho Ribeiro Morcelli, Ana Maria Graciano Figueiredo e Jacinta Enzweiler

Abstract: In the present work, Instrumental Neutron Activation Analysis (INAA) and X-Ray Fluorescence were employedto analyze major and minor elements in soil samples collected near Bandeirantes road. Elements of environmentalinterest, such as Al, Sb, As, Ba, Cd, Pb, Co, Cu, Cr, Fe, Mn, Mo, Ni, Se, V and Zn, which have reference backgroundlevels, were determined. The samples were dried in an oven at 40°C, were sieved (<2 mm), grinded and were analyzedby INAA and FRX. The aims of this work were: to evaluate the possible variations in the concentration levels in soil dueto emission of particulate from vehicles and other anthropogenic sources; to compare the results obtained by usingboth techniques. This preliminary study showed that the concentration levels of the elements of environmental interestagree with reference values for tropical soils in the sampling sites, except for Ba, which presented higher values.Keywords: soil, trace elements, INAA, XRF.File: E02_470.pdf

EFLUENT TREATMENT WITH LANTHANUM, GADOLINIUM AND CADMIUM THROUGH CROWN ETHERS

Maria Candida Moreira de Almeida, Wilma Araújo Gonzalez Rafael Fernandes da Rocha, Sam Lara de Moraes

Abstract: The need of expansion of the nuclear and industrial activities allied to the lack of treatment of the rejects,mainly the radioactive, leads to the development of the research of heavy metal separation by being pollutant dangerous.In this way, it was studied heavy metal extraction of efluents through composites type crown ethers DB15C5, DB18C6and DCH18C6 and of metallic cations La(3+), Gd (3+) and Cd (2+), in aqueous solution. The extraction was evaluatedby the aqueous phase through the analysis of metals by a inductively coupled plasma with a mass spectrometer(ICPMS). The results indicate that the lanthanides are more easily extracted than cadmium and, are in agreement withthe factors: the relation between the ionic rays of metals and the ligants, their electric valences, the molecular structureof the ligants, among others.Keywords: crown ethers, extraction, lanthanium, gadolinium, cadmiumFile: E02_238.pdf




inac2002VI ENAN

DETERMINAÇÃO DE ELEMENTOS TRAÇO EM TECIDO ÓSSEO HUMANO PELO MÉTODO DE ATIVAÇÃO COMNÊUTRONS

Marcelo K. Takata, Nairo M. Sumita, Paulo H. N. Saldiva, Carlos A. Pasqualucci e Mitiko Saiki

Abstract: Determination of trace elements in human bones is of the great interest for evaluating nutritional state and forprevention, control and study of several diseases caused by mineral or trace element imbalance.In this study, neutron activation analysis (NAA) was applied for trace elements in human rib bone tissue. Elements Ba,Br, Ca, Cl, Fe, K, Mg, Mn, Na, P, Rb, Sr and Zn were determined in total bone tissue and in its subcompartments(cortical and trabecular tissue) separately. Irradiations were performed at IEA-R1 nuclear research reactor of IPEN-CNEN/SP. Short irradiations of 4 minutes were carried out under thermal neutron flux of 4.5x1011 n cm-2 s -1 and longirradiations of 16 hours under neutron flux of 1012 n cm-2 s -1. Results obtained showed a variability between elementalconcentrations found for bones from different individuals. A comparative study made between the data obtained forcortical and trabecular bones indicated that these two tissues present different elemental concentrations. Concentrationsof Ca, Mg, Na and P obtained for cortical tissue were the same magnitude of those published data. Acknowledgments:To Fapesp, CNPq and IAEA for financial support.Keywords: human rib bone, neutron activation analysis, cortical bone, trabecular bone.File: E02_481.pdf

DETERMINAÇÃO DE ELEMENTOS TRAÇO NOS FITOFÁRMACOS GINSENG E GINKGO BILOBA

Simone Avino, Mitiko Saiki e Roberto Fulfaro

Abstract: Determinations of trace elements in medicinal plants or in their extracts are of great interest since someelements are components of active constituents or they can affect the plant metabolism and consequently the formationof active constituents.In this work, inorganic components in medicinal drugs, Ginseng e Ginkgo Biloba provided from different laboratories,were analyzed by neutron activation analysis. Elements As, Br, Ca, Cl, Co Cr, Cs, Fe, K, La, Mg, Mn, Na, Rb, Sb, Sc,and Zn, were determined in these samples. Comparisons carried out between the results obtained for samples fromdifferent laboratories indicated distinct concentrations for several elements. These results may be attributed to theeffect of soil composition and environmental conditions where these plants were cultivated. The precision and accuracyof the results were evaluated by analyzing reference materials Bowen’s Kale from IUAPC and Cabbage from IAEA. (Agradecimentos a FAPESP e CNPq pelo apoio financeiro).Keywords: ginseng, ginkgo biloba, neutron activation analysis, medicinal plants.File: E02_465.pdf

DETERMINAÇÃO DE SELÊNIO EM MATERIAIS BIOLÓGICOS POR ANÁLISE POR ATIVAÇÃO COM NÊUTRONS -COMPARAÇÃO ESTATÍSTICA ENTRE O USO DO 77mSe (t

1/2 = 17,45s) E 75Se (t

1/2 = 119,8d)

Marília G. M. Catharino e Marina B. A. Vasconcellos

Abstract: Selenium is nowadays considered to be an essential trace element in human diet. The most extensivelystudied biochemical role of this element is related to its participation in the composition of glutathione peroxidase. Thisenzyme acts as an antioxidant for the free radicals formed in the human body. In the present work, selenium wasdetermined by INAA in reference materials (“Human hair” IAEA-085, “Human hair” IAEA-086, “Dogfish Liver” DOLT-1 e“Dogfish Muscle” DORM-1) and in toenails and vitamin supplement, using the short-lived radioisotope 77mSe. The usualmethod, which utilizes long- lived 75Se, was also employed, in order to make a comparative study. A statistical test wasapplied for this comparison. It was verified that the average concentrations of selenium, in the reference materials andin the samples analyzed, do not differ statistically at a significance level of 0.05, which indicates the applicability of theshort-lived 77mSe for INAA of the matrixes studied.Keywords: selenium, biological materials, INAAFile: E02_435.pdf




inac2002VI ENAN

Nuclear Analytical TechniquesDETERMINAÇÃO DE ELEMENTOS TÓXICOS EM MATERIAIS PLÁSTICOS METALIZADOS

Eufemia Paez Soares, Mitiko Saiki e Hélio Wiebeck

Abstract: In this work, neutrons activation analysis (NAA) was applied in the analysis of metallized plastics frompackagings of foods and cosmetics as well as in products as compact disk (CD), phone and identification cards.These samples were adequately cleaned and prepared for irradiation under thermal neutrons flux of IEA-R1 nuclearreactor with elemental standards. The gamma ray measurements were carried out using an HGe detector connectedto a gamma ray spectrometer. Elements as As, Ba, Br, Ca, Cd, Cr, Co, Fe, Ni, Sc, Se, Sb, Sn and Zn were determinedin metallized plastic samples and these results presented a large variability from µg kg-1 to percentage levels; dependingon the element and the sample. The presence of toxic elements indicated the necessity of selecting plastic materialsfor their incineration or recovery by recycling. NAA method used was highly suitable in the plastic analysis due to itsnon-destructive character and the possibility of a multielemental analysis with a good accuracy and precision of theresults.Keywords: metallized plastic, NAA, inorganic compounds, elemental analysis, plasticsFile: E02_454.pdf

DISTRIBUIÇÃO DE ELEMENTOS METÁLICOS EM SEDIMENTOS DE DRENAGENS DO PARQUE ESTADUAL DAILHA ANCHIETA - SP

Cláudio Ailton Nogueira, Ana Maria Graciano Figueiredo e Joel Barbujiani Sígolo

Abstract: This paper presents a preliminary study of the geochemical behavior of metals in river sediments fromParque Estadual da Ilha Anchieta which is located in the north coast of São Paulo, Brazil. The Anchieta Island presentsmany natural ecosystems well preserved without anthropogenic contamination. The sediments were collected intwo different points in one of the main rivers of the island. Samples were analyzed by instrumental neutron activationanalyses (INAA) which permits the quantification of total concentration of metals (Ba, Co, Cr, Cs, Fe Hf, Rb, Sc, Taand Zn), rare earth elements (Ce, Eu, La, Lu, Nd, Sm, Tb e Yb), actinides (U and Th) and non metals (As, Br and Sb).Elemental content in the samples had remaided relatively constant along the deep of the sample and the changesseemed to be well correlated with the size of the particles in the samples. The precision and the accuracy of theresults were evaluated by the analysis of two geological reference materials and data obtained were in good agreementwith recommended values. The values obtained for the analyzed elements can be considered the natural concentrationof those elements, since Parque Estadual da Ilha Anchieta is preserved from anthropogenic impact.Keywords: sediments, metals, INAA, geochemistry.File: E02_463.pdf

DETERMINAÇÃO DE ELEMENTOS TRAÇO EM MATERIAIS DE REFERÊNCIA DE SILÍCIO E FERRO-SILÍCIO PELOMÉTODO INSTRUMENTAL DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONS

Edson Gonçalves Moreira, Marina Beatriz Agostini Vasconcellos, Mitiko Saiki e Célia Omine Iamashita

Abstract: The use of certified reference materials, CRM, is of uppermost importance in the rastreability realization ofthe measurement process. At times, CRM use is restricted by the non existence of a suitable CRM with similarity tothe sample in respect to matrix composition or with element levels in different orders of magnitude. IPT ChemicalDivision launched a project to prepare a metallic silicon CRM, due to the requirements of the industries in this field.To characterize this new CRM, IPEN Nuclear Reactor Center is able to perform instrumental neutron activationanalysis, INAA, a very suitable method for silicon matrix samples because they produce basically the short livedradionuclide 31Si under thermal neutrons flux, which after radioactive decay, does not interfere in the determination ofother elements. In this paper, it is presented the determination of As, Br, Co, Cr, K, Eu, Fe, La, Mn, Na Nb, Sb, Sm, Sc,Th, Tb, U, V, W and Yb in silicon CRM NBS SRM 57; ferrosilicon CRM IPT 56; IPT 70; NBS SRM 58a; NBS SRM 59aand silicon RM under preparation IPT 132. From the results, the accuracy and the precision of the process wereassessed.Keywords: silicon, ferrosilicon, reference material, instrumental neutron activation analysisFile: E02_504.pdf



inac2002VI ENAN

Nuclear Analytical TechniquesDESENVOLVIMENTO DO MÉTODO A SECO DE REGISTRO DE TRAÇOS DE FISSÃO A SER EMPREGADO NA

DETERMINAÇÃO DE URÂNIO EM DIVERSOS TIPOS DE AMOSTRAS BIOLÓGICAS E AMBIENTAIS

Ione Makiko Yamazaki and Luiz Paulo Geraldo

Abstract: In the present work, it was developed a relatively quick and reproducible method for the determination ofuranium content, in the ppb level, to be employed in the study of several biological and environmental samples. Thetechnique employed was the fission-track registration in a polycarbonate plastic sheet, commercially known asMakrofol KG (dry-method), together with an automatic discharge chamber system for fission-track counting, usingas electrode an aluminized Mylar foil. 5 µl droplet of the standard sample solutions, in the form of uranyl nitrate,with U concentrations ranging from 12x10-6 to 50x10-6g/l, were deposited on Makrofol KG plastic foils, togetherwith 2µl of a 1% cyastat solution (wetting agent), in order to reduce the droplet surface tension. During the deposition,the whole droplet was carefully scattered in such way that large deposit areas, around 7cm2 were obtained. Afterevaporation (7 minutes) under a bulb lamp (250 W), the samples were covered by an extremely thin layer (20 µg/cm2) of collodion (pyroxylin) in order to fix the dried deposits on the plastic foils. Sets of 12 piled up samples weresimultaneously irradiated with neutrons produced by the IPEN IEA-R1 reactor, a 2 MW pool type research reactor.The calibration curve obtained is presented with a discussion of the experimental uncertainties involved.Keywords: fission track, uranium, dry-methodFile: E02_513.pdf

PRÉ-CONCENTRAÇÃO EM SISTEMA DE FLUXO PARA DETERMINAÇÃO MULTIELEMENTAR EM AMOSTRAS DEÁGUAS FLUVIAIS POR FLUORESCÊNCIA DE RAIOS X COM REFLEXÃO TOTAL

Amauri A. Menegário, Daniel C. Pellegrinotti, Maria Fernanda Giné e Virgílio F. Nascimento Filho

Abstract: A scaled-down preconcentration flow system is proposed for determination of Co, Cu, Mn, Ni, Pb and Zn innatural water samples, using solid-liquid extraction, and subsequent analysis by total reflection X-ray fluorescence(TXRF). The flow system was assembled with a 11 µl column of AG50W-X8 resin and three-way solenoid valvescommanded by a computer, which permits the automatic preconcentration, addition of internal standard (Ga) andthe deposition of the eluate on the reflector plate. The interference effect due to Na (I), Ca (II) and Fe (III) on theanalytes was evaluated. The proposed methodology results in preconcentration of up to 20 times using only 1 mlsample and allowed a significant reduction in the sample eluent (HCl 3 mol L -1). Detection limits were 1, 2, 3 and 4µg L -1 for Zn, Co, Cu e Ni, Mn and Pb, respectively. The accuracy was evaluated analysing a Natural Water StandardReference Material-1640 (Natural Institute of Standards and Technology), showing good agreement with certifiedvalues.Keywords: flow system, preconcentration, TXRF, natural waterFile: E02_639.pdf

CHARACTERIZATION OF MONAZITE DUST PARTICLES

Kenya Dias da Cunha, Ligia Julião, Maristela Santos, Paulo Fernandes, Miliane Busch, Sheila Nascimento,Wnderson Sousa, Zoyne Pedrero and Carlos V. Barros Leite

Abstract: The aim of this work is to evaluate exposure of inhabitant of high background area to monazite airborneparticles. The main deposit of mineral sands and the most important mineral processed plant is located in Buenavillage, a seashore village in the North of Rio de Janeiro states. The Buena inhabitants (about 300 persons) live aroundthe plant. People living in regions with high concentration of monazite can be contaminated by ingestion of localfoodstuff and inhalation of monazite airborne particles containing thorium. The elemental mass concentration, 232Th,228Th and 228Ra concentrations in the respirable fraction of aerosols, MMAD (Mass Median Aerodynamic Diameter) ofairborne particles and 232Th, 228Th and 228Ra concentrations in feces samples of the Buena village inhabitant weredetermined.Keywords: aerosols, MMAD, air pollution.File: E02_721.pdf



inac2002VI ENAN


CHARACTERIZATION OF CORROSION PRODUCTS FROM Nd-Fe-B MAGNETS USED IN DENTAL PHOSTHESES

Mitiko Saiki, Sizue O. Rogero, Isolda Costa, Elisabeth Dantas, Mara C.L. Oliveira

Abstract: A special group of magnets composed mainly by Nd-Fe-B has been widely used in dental applications asretentive devices for overdentures, due to their strong force and compactness. Dental materials should present highcorrosion resistance and be innocuous to human tissues, however, Nd-Fe-B magnets are highly susceptible tocorrosion.This work presents results obtained in the elemental analysis of Nd-Fe-B magnets and their corrosion products. Thecorrosion products were analyzed in the extracts of culture medium where the magnets had been immersed for 10days at 37 ºC. Elements B, Co, Fe, La, Nd, Dy, Pr, Sm, Ho, Yb and Lu were found in the magnet and the analysis ofextract indicated that Co, Fe and Nd are released from the magnet to the extract. Toxicity was also investigated in thisextract using the neutral red uptake cytotoxicity assay. Acknowledgements: To FAPESP and CNPq for financial supportKeywords: magnets, corrosion, Nd-Fe-B, cytotoxicityFile: E02_656.pdf

ESTUDO COMPARATIVO NA DETERMINAÇÃO DE ELEMENTOS ESSENCIAIS EM AMOSTRAS DE PRODUTOSLÁCTEOS POR AANI E ICP-AES

Carmen S. Kira; Vera A. Maihara

Abstract: The mineral elements Ca, Fe, K, Mg, Na and Zn were analyzed in milk products by using instrumentalneutron activation analysis (INAA) and inductively coupled plasma atomic emission spectrometry (ICP-AES). Thestudy included four types of cheese (mozzarella, minas, prato, parmesan), chocolate milk and yogurt. The sampleswere purchased from the local markets. Average concentrations ranged from 3668 (chocolate milk) to 16558(parmesan cheese) mg/kg for Ca; from 2.61 (parmesan cheese) to 28.9 (chocolate milk) mg/kg for Fe; from 673(mozzarella cheese) to 10492 (chocolate milk) mg/kg for K; from 398 (yogurt) to 2280 (minas cheese) mg/kg for Mg;from 1681 (yogurt) to 15248 (parmesan cheese) mg/kg for Na; from 12.1 (chocolate milk) to 71.8 (parmesan cheese)mg/kg for Zn. Two National Institute of Standards and Technology (NIST) standard reference materials (SRM 8435Whole Milk Powder and SRM 1549 Non Fat Milk Powder) were analyzed to verify method accuracy. The statistic testused to determine the significance of the difference between the techniques was based on Unpaired t-Student test.Statistical test revealed no significance differences (P< 0,05) between the average values provided by the two methodsfor the most of determined elements.Keywords: milk products, mineral, AANI, ICP-AES.File: E02_528.pdf

AVALIAÇÃO DA INFLUÊNCIA DAS PROPRIEDADES E GEOMETRIA DA AMOSTRA EM ESPECTROMETRIA DERAIOS GAMA

Antonio C. A. Vaz e Mitiko Saiki

Abstract: Variations in sample properties and sample geometry can occur in the measurements of standards andsamples for neutron activation analysis.This work presents an evaluation of errors in gamma ray spectrometric analyses due to variations in sample propertiesand geometry, dead time of the system and pile up of pulses. To study these effects, simulated samples were preparedusing 152Eu tracer solutions. Gamma ray measurements were carried out by using an hyperpure Ge detector connecteda gamma ray spectrometer. As expected, the results have indicated that sample self - absorption depends on sampledensity and the gamma ray energy. Counting geometry errors were the most important source of errors when samplesare measured close to the detector. The sample holder thickness can also alter the measurements depending onthe gamma ray energy. To avoid the overall correction for dead time and pile-up effects, the percentage of dead timehas to be lower than 15%. ( Acknowledgements: To FAPESP and CNPq for financial support).Keywords: gamma – ray spectrometric analyses, sample properties, sample geometryFile: E02_668.pdf



inac2002VI ENAN

Nuclear Analytical TechniquesDETERMINAÇÃO DE ELEMENTOS MINERAIS E TRAÇOS EM DIETAS PELA TÉCNICA DE ATIVAÇÃO NEUTRÔNICA

Maria Izabel O. Eiras, Déborah I.T. Fávaro, Marisilda Ribeiro, Silvia M.F. Cozzolino

Abstract: In the present study 12 diets, each one consisting of a pool of seven day diets, composed by four meals:breakfast, lunch, dinner and snack, adequate in energy and macronutrients according to the RDA (RecommendedDaily Allowance) recommendations, were elaborated and offered to a group of 12 men (19-42 years). The diets werecollected by duplicate portion technique and dried by two different processes: freeze drying and 60 0C ventilated ovendrying. In the total, 24 diets were analyzed. The content of some minerals and trace elements (Ca, Fe, Mg, Mn, Na,Se and Zn) were determined by Instrumental Neutron Activation Analysis. The validation of methodology was madeby analysis of the reference materials Typical Diet (NIST SRM 1548a), Orchard Leaves (NIST SRM 1541) andPeach Leaves (NIST SRM 1547). The results observed by two different drying processes used were statisticallycompared by test T of Student. It was possible to conclude that the concentration means can be considered asstatistically equal, within a significance level of 0.05. The daily intake values calculated from the concentrationresults were: 712 (± 59) mg Ca/day; 10.7 (± 0.8) mg Fe/ day; 3387 (± 16) mg K/ day; 275 (± 6) mg Mg/ day; 3.0 (± 0.5)mg Mn/ day; 3656 (± 699) mg Na/ day; 42 (± 6) µg Se/ day e 11.6 (± 2.4) mg Zn/ day. The calculated intake wascompared to the new daily recommended values set by RDA (National Research Council-USA) for the range age ofindividuals studied. It was possible to conclude that the diets were adequate in Fe and Zn and inadequate for theother elements. Concerning the minerals Na and K we verified high daily intake levels and this was already observedin other Brazilian regional diets.Keywords: minerals, trace elements, diets, neutron activation analysisFile: E02_562.pdf

ANÁLISE QUANTITATIVA DE COMPÓSITO DE ALUMÍNIO REFORÇADO COM CARBETO DE SILÍCIO

PELA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X E RADIAÇÃO INFRAVERMELHA

Thaís C. Prado, Marcos A. Scapin, Vera L. Salvador, Luís G. Martinez,Sergio C. Moura, André Sassine e J. O. Vega Bustillos

Abstract: The scope of this work is the chemical quantitative analysis of Silicon and Carbon in the metal matrix composites(SiC in Al matrix) by the fluorescence X-Ray spectrometry technique and the Infra-Red Detector analyzer. Two sampleswere analyzed, aluminum metal and aluminum with 5% of SiC. The results show agreement with the theoreticalstoichiometric ratio values of the SiC in Al. Carbon within 1,76 % and Silicon within 3,27 % were quantified. The workshows the viability of this technique for a fast and accurate analysis. Details and statistic results of the method arepresented as well.Keywords: chemical analysis, composites, fluorescence x-ray spectrometry, infra-red detectorFile: E02_762.pdf

TOTAL AND AVAILABLE METAL CONTENTS IN SEDIMENTS BY SYNCHROTRON RADIATION

TOTAL REFLECTION X-RAY FLUORESCENCE

Silvana Moreira; Gilmar A. Sobrinho; Ana Elisa S. de Vives; Edgar F. O. de Jesus; Ricardo T. Lopes

Abstract: In this work the total and available contents of Al, Si, Cl, K, Mn, Fe, Co, Ni, Cu, Zn, Sr, Zr, Ba, Ce and Pb insediments from river Atibaia were determined by Synchrotron Radiation Total Reflection X-Ray Fluorescence technique.The detection limits for K series varies from 200 ng.mL-1 for Al to 2 ng.mL-1 for Zn while for L series the value variesfrom 20 ng.mL-1 for Ba to 10 ng.mL-1 for Pb. The samples were submitted to two different processes, in order to obtainthe total and biological available metal contents. The information about metal content is a important parameter for acorrect evaluation about the hydrologic cycle in Piracicaba basin. All the measure were carried out at the NationalSynchrotron Light Laboratory, Campinas, SP, Brazil, using a white beam for excitation.Keywords: sediments, synchroton radiation, TXRF, available metalFile: E02_343.pdf



inac2002VI ENAN

Nuclear Analytical TechniquesREMOÇÃO DE INTERFERENTES EM AMOSTRAS COM ALTOS TEORES DE SÓLIDOS

DISSOLVIDOS PARA A DETERMINAÇÃO DE ARSÊNIO E SELÊNIO POR TXRF

Amauri A. Menegário, Ana Carla F. Gomes, Daniel C. Pellegrinotti,Maria F. Giné, Francisco J. Krug e Virgílio F. Nascimento Filho

Abstract: A matrix separation flow system coupled with total reflection X-ray fluorescence (TXRF) is proposed to removeCa++, Mg++, Na+ and K+ major cations from samples containing high amounts of totally dissolved solids, using solid-liquidphases in flow system. This system is assembled with a 1.25 mL column of AG50W-X8 resin (in protoneted form) andmanual commutator, allowed the separation, addition of internal standard and subsequently a 40 µL aliquot of theeluate was deposited in the reflector support, dried in a furnace for 12 hours at 60 ± 5 °C and analysed by TXRF. All theprocedure is carried out in about 90 s and 0.5 mL of sample are required. The proposed approach was applied fordetermination of As and Se in plant material and sea water samples. When comparing with direct analysis (withoutseparation), a reduction of 2 to 6 times on the limits of detection for these elements was attained. The accuracy of thismethodology was satisfactory for As and Se in sea water and Se in rice certified samples. This procedure could be alsoused for Pb interference removal in the determination of As by X-ray fluorescence.Keywords: flow system, matrix separation , TXRF, sea water, plant materialFile: E02_641.pdf

ANÁLISE ELEMENTAR DE AMOSTRAS DENTÁRIAS HUMANAS USANDO SRXRF

Marcelino J. Anjos, Regina C. Barroso, Carlos A. Pérez,Delson Braz, Silvana Moreira, Katia R. Dias e Ricardo T. Lopes

Abstract: Human teeth were analysed by mSRXRF. The measurements were carried out in small areas of the teethfrom enamel to root. The aim of this work was to evaluated the local elemental variations in the dental regions, enamel,dentine and pulp from patterns of relative intensities. The distributions of the elements Ca, Zn and Sr were studied. Thesamples (canine, premolars and molar teeth) were cross-sectioned along the vertical median plane, by polishing thewhole tooth in order to obtain a smooth and plane surface, of about 1 mm thick. The measurements were carried out inthe XRF beamline of the Synchrotron Light National Laboratory , Campinas, Brazil using a conventional collimationsystem (orthogonal slits 300 mm x 300 mm). The Ca concentration is quite constant and it is independent of the toothtype and individual characteristics. Ca and Sr distributions show a similar behavior. An increase of the Zn concentrationwas found for the pulp region and for untreated carious areas.Keywords: X-ray fluorescence, human teeth, elementary analysisFile: E02_661.pdf

PHASE MIXTURE COEXISTING IN ALPHA IMPLANTED YBaCuO COMPOUND PROBED BY POSITRONS ANNIHILATION

G. R. Santos ; J. C. R. dos Santos and R. K. Morales

Abstract: This work is intended to be a starting point to the application of non-destructive techniques to study radiationeffects in superconductors in nuclear application, and a creation of a nuclear data bank for different type of materials.The first non-destructive technique to be applied is positron annihilation (PAT). The behavior of the magnetic permeabilitywith temperature of YBa2Cu3O7-d?, superconducting ceramic was studied as a function of the amount of He++ implantedinto the sample. With flounce varying from 1.2 to 6.0×1016He++cm-2 the results showed that the transition temperatureTC(onset) stays nearly constant up to 2.5×1016He++cm-2, decreasing afterwards for higher flounces. An almost lineardecrease is observed for T(offset). The magnetic permeability curves show structures whose shapes and relativepositions to TC(onset) change with the flounce. Although this might indicate a mixture of phases coexisting inside thesample, X-ray diffraction shows no clear evidence for such a pattern. Most of the damage recovers after annealing at673K. The first results of PAT application shows that is possible to determine the TC(onset) and the radiation effects onthat, as well as others superconducting properties reinforcing the possibility of the different phases coexisting asconsequence of He++ flounce.Keywords: superconductors, radiation damage, positron annihilation,File: E02_057.pdf



inac2002VI ENAN

Nuclear Analytical TechniquesAPLICAÇÃO DAS TÉCNICAS DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONS E FLUORESCÊNCIA DE RAIOS X

EM AMOSTRA DE FÍGADO BOVINO

V.A.Maihara, I.M.Sato, D.I.T.Fávaro, V.L.Salvador, M.B.A.Vasconcellos

Abstract: Many analytical techniques have been used in food and diet analysis in order to determine a great number ofnutritional elements, ranging from percentage to ng g -1, with high sensitivity and accuracy. Instrumental Neutron activationAnalysis (INAA) has been employed to certificate many trace elements in biological reference materials. More recently,the X-Ray Fluorescence (FRX-WD) has been also used to determine some essential elements in food samples. TheINAA has been applied in nutrition studies in our laboratory at IPEN since the 80 s.For the development of analytical methodologies the use of the reference materials with the same characteristics of thesample analyzed is essential. Several Brazilian laboratories do not have conditions to use these materials due theirhigh cost.In this paper preliminary results of commercial bovine liver sample analyses obtained by INAA and WD-XRF methodsare presented. This sample was prepared to be a Brazilian candidate of reference material for a group of laboratoriesparticipating in a research project sponsored by FAPESP. The concentrations of some elements like Cl, K, Na, P, S andtrace elements Br, Ca, Co, Cu, Fe, Mg, Mn, Mo, Rb, Se and Zn were determined by INAA and WD-XFR. For validationmethodology of both techniques, NIST SRM 1577b Bovine Liver reference material was analyzed and the detectionlimits were calculated. The concentrations of elements determined by both analytical techniques were compared byusing the Student’s t-test and for Cl, Cu, Fe, K, Mg, Na, Rn and Zn the results do show no statistical difference for 95%significance level.Keywords: trace elements; neutron activation analysis; X-ray fluorescence; foodstuffFile: E02_527.pdf

DETERMINAÇÃO ESPECTROFOTOMÉTRICA DE URÂNIO(VI) COM ARSENAZO III, EM MEIO NÍTRICO

Mitiko Yamaura, Luciana Yukie Wada e Fernando Castilho Ribeiro

Abstract: Arsenazo III is an organic reagent usually used for the photometric determination of various elements, includingthe uranium, thorium, plutonium, barium, strontium, hafnium, bismuth and the rare earth elements. The reactions ofarsenazo III with many elements are very sensitive and, consequently is not specific for any element. Arsenazo III withU(VI) gives a 1:1 coloured complex in diluted acid solution of pH 1 to 3, and in strong acid media forming 1:1, 1:2 and1:3 species. In this work, a detailed study of the influence of pH is described. The stability of formed complex and theinterference of Fe(III) ions were also studied.Keywords: spectrophotometric determination; uranium (VI); arsenazo III.File: E02_368.pdf

MÉTODO NUCLEAR APLICADO EM SÍTIOS ARQUEOLÓGICOS NA BACIA AMAZÔNICA

Iêda Gomes Nícoli, Alfredo Victor Bellido Bernedo e Rose Mary Latini

Abstract: The aim of this work was to use the nuclear methodology to character pottery discovered inside archaelogicalsites recognized with circular earth structure in Acre State - Brazil which may contribute to the research in thereconstruction of part of the pre-history of the Amazonic Basin. The sites are located mainly in the Hydrographic Basinof High Purus River. Thre of them were strategic choosen to collect the ceramics: Lobão, in Sena Madureira County atnorth; Alto Alegre in Rio Branco County at east and Xipamanu I, in Xapuri County at south. Neutron Activation Analysisin conjunction with multivariate statistical methods were used for the ceramic characterization and classification. Anhomogeneneos group was established by all the sherds collected from Alto Alegre and was distinct from the other twogroups analyzed. Some of the sherds collected from Xipamunu I appeared in Lobão´s urns, probably because theyhad the same fabrication process.Keywords: archeological ceramics, neutron activation, amazonic basin, multivariate statisticalFile: E02_451.pdf



inac2002VI ENAN

Nuclear Analytical TechniquesANÁLISE MULTIELEMENTAR DE ÁGUA MINERAL UTILIZANDO TXRF COM RADIAÇÃO SÍNCROTRON

Ana C. M. Costa , Marcelino J. Anjos, Silvana Moreira, Ricardo T. Lopes e Edgar F. O. de Jesus

Abstract: The Total Reflection X-Ray Fluorescence using Synchrotron Radiation (SRTXRF) has become an importanttechnique for the determination of trace elements in samples that the concentrations are lower than 100 ng mL-1. In thiswork, thirty-seven mineral waters commonly available in supermarkets of Rio de Janeiro, Brazil, were analyzed bySRTXRF. The measurements were performed at the X-Ray Fluorescence Beamline at Brazilian National SynchrotronLight Laboratory (LNLS), in Campinas, São Paulo, using a polychromatic beam with maximum energy of 20 keV for theexcitation. Standard solutions with gallium as internal standard were prepared for calibration system. Mineral waterssamples of 10 µL were added to Perplex reflector disks, dried under vacuum and analyzed for 200 s measuring time.It was possible to determine the concentrations of the following elements: Al, Si, S, K, Ca, Ti, Cr, Ni, Cu, Zn, Ge, Rb, Sr,Ba and Pb. The elemental concentration values found were compared with the limits established by the Brazilianlegislation.Keywords: total reflection, X-Ray fluorescence, synchrotron radiation, trace elements, mineral waters.File: E02_658.pdf

THE USE OF NAA FOR CHEMICAL CHARACTERISATION OF CLAY SOURCES WITHIN AN ARCHAEOLOGICALCERAMIC STUDY IN THE CHASCHUIL-ABAUCAN REGION (TINOGASTA, CATAMARCA, ARGENTINA)

R. R. Plá, N. R. Ratto, M. A. Moreno, G. De La Fuente, M. Orgaz

Abstract: Application of Neutron Activation Análisis (NAA) to provenience studies of archaeological ceramics involvesthe determination of clay sources used for their production. This work presents the study on raw materials and itsrelation to sherd results, on samples from Argentine southern Puna,using NAA. An hypothesis was stated that thePuna region of Chaschuil served as a corridor for the circulation of goods, energy and information, interconnectinglarge areas and relating to facilities at the bottom of the valley, especially at the Bolsón de Fiambalá. Potential rawmaterial source locations were sampled both in Puna and valley, considering availability, plasticity, workability andtextural fractions of the deposits. Factor analysis was used for evaluation of the results. The graphical representationof the first three factors showed a dense grouping of valley clays with Puna samples as outliers. Within the valleygroup, those clays from La Troya river appeared closely related to each other. XRD of these samples showed 100 %good quality clays for ceramic manufacture and high presence of clay fraction (17 – 45 % concentration values), withexcellent properties regarding their plasticity and workability. The evaluation of a matrix composed of clay and sherdanalytical results showed that sherds from valley area were manufactured with local raw materials that included thealready sampled sources and others still to be located; that most of Puna sherds were manufactured with raw materialsfrom the valley area, mainly La Troya and that Puna sources of raw materials were not used in the manufacture of thosesherds sampled at Puna sites.Keywords: neutron activation analysis, archaeological ceramics, provenience studiesFile: E02_119.pdf

DETERMINAÇÃO DE CESIO POR ESPECTROMETRIA DE ENERGIA DE RAIOS X EM AMOSTRAS DE LIXIVIAÇÃODE PRODUTOS CIMENTADOS

João Batista Santos Barbosa ; José dos Santos Jorge Pereira

Abstract: This work presents an application of the X-Ray Energy Spectrometer to the cesium determination in aqueoussamples from leaching processes. It is a support to the research of radioactive waste retention by cemented blocks.Samples are dried, recovered as a powder and prepared as a flat pellet. Such a preparation allows decreasing thedetection limit to 20 ppb. Spectrum analysis is performed by using a Least-Square method from which a factor representingthe estimated value for the concentration is obtained.Keywords: X-Ray Energy spectrometry, cesium determination, emission-transmission method.File: E02_420.pdf



inac2002VI ENAN

Nuclear Analytical TechniquesCOMPOSIÇÃO ELEMENTAR DE As, Br, La, Sm e Rb EM AMOSTRAS DE VEGETAIS E SOLO DE PASTAGEM

TÍPICA DA REGIÃO SERRANA DO VALE DO PARAÍBA

Artur Flávio Dias e Helder de Oliveira

Abstract: The aim of this paper was to determine the chemical composition of Br, K, La, Sm and Rb in ground-brachiariadecumbens samples and bracken fern (Pteridium aquilinum) in typical pasture of the upland areas of the Vale doParaíba, São Paulo, Brazil, using the neutron activation analysis technique (INAA). The results will be catalogued in adata bank and could be used to nullify the doubts of small farmers of the region on the aetiology of the enzootichaematuria problem that currently occurs in bovines in these type of pasture in a very above-normal incidence, whosepredisponent cause credits with chronic bracken poisoning as suggests a result of histological examination.Keywords: INAA, enzootic haematuria, bracken fern, poisoning, pasture, upland areas.File: E02_109.pdf

DETERMINATION OF AMERICIUM ALPHA EMITTING ISOTOPES IN URINE AND FAECES SAMPLES

Maria Helena T. Taddei, Nivaldo Carlos da Silva e José Flávio Macacini

Abstract: A method was developed to analyze the urine and faeces of the workers involved in dismantling of radioactivelightning–rods and smoke detectors. The procedure follows five steps: pre-concentration by hydroxides, chemicaldissolution, americium separation by ion exchange resin, electrodeposition on stainless steel plates and quantificationin alpha spectrometry. The sample is dissolved with mineral acids and them it follows the first purification by ionexchange resin at anionic form. In the eluted fraction; americium is co-precipitated by oxalic acid, followed by ashed, itis then dissolved and percolated through ion exchange resin TRU. Americium is eluted, electrodeposited and quantifiedby alpha spectrometry using 243Am as a tracer.Keywords: americium, alpha espectrometry, urine and faeces.File: E02_547.pdf

NUCLEAR METHODOLOGY FOR STUDYING BIOLOGICAL FUNCTIONS OF MAMMALIANS SUBMITTED TOURANIUM INGESTION

L.C. Oliveira, C. B. Zamboni, A. C. Cestari, L. Dalaqua Jr., M. V. G. Manso, A. M. G. Figueiredo, J.T. Aruda-Neto

Abstract: To investigate the biological behavior of mammalians that has been fed with chow doped by natural uranium,for a long period, neutron activation analysis has been used to determine the concentration of the elements in thebiological samples of blood and urine. According to this investigation we could point some advantages of using nuclearanalysis in comparison with the conventional clinical analysis for diagnose anomalies in organs.Keywords: blood, urine, neutron activation, clinical analysis, mammalians.File: E02_418.pdf

INAA AS TOOL FOR ENVIRONMENT BIOMONITORING

Maria Adelaide R. V. Veado, Artur C. Avelar , Júlio César Cambraia Veado, Maria Ângela de B. C. Menezes, Arno H.De Oliveira, Ronaldo Araújo Miguel

Abstract: The k0 parametric technique of Neutron Activation was used to determine elements in sediment, soil, forage,cattle feces and milk samples collected in a cattle breeding and agricultural zone in Curvelo city, Minas Gerais state, inBrazil. The samples were collected on the farms close to the banks of the Das Velhas River where there is periodicflood during reasonable rains. Clinic veterinary studies have shown that most animals raised in this region are affectedby symptomatologic nervous diseases, still not clearly diagnosed, that suggest intoxication. These pathologies aremostly registered after floods. In this paper, the elements As, Cr, Co and Zn, among others were analyzed. The resultsobtained in different samples of cattle urine and milk as well as in forage samples suggest that there is an influence ofmetals that are carried by the Das Velhas River basin upstream water.Keywords: INAA, sediment, forage, cattle feces, cattle milkFile: E02_171.pdf



inac2002VI ENAN

Nuclear Analytical TechniquesDETERMINAÇÃO DE Ca, Cr, Cu, Fe, K, Mg, Na E Zn EM PLANTAS MEDICINAIS BRASILEIRAS POR

ATIVAÇÃO NEUTRÔNICA E ABSORÇÃO ATÔMICA

Ricardo P. de Carvalho , Claudia de Vilhena S. Sabino, Simone C. A. L. Leite, Milton B. Franco, Ângela M. Amaral,Isabel R. Silva, João B. Guedes e Adilson de C. de Assis

Abstract: Medicinal plants are disponible in the markets in Belo Horizonte, Minas Gerais. The objective of this work isto investigate the Ca, Cr, Cu, Fe, K, Mg, Na e Zn concentrations in two lots of usually known diuretics plants (azeitonado mato, cabelo de milho, cavalinha, cervejinha do campo, chapéu de couro, congonha de bugre, marmelinho docampo and quebra pedra) bought with an interval of time – six months – between the purchases. The elementalconcentrations were determined applying k0 instrumental neutron activation analysis and atomic absorptionspectrophotometry analysis.Keywords: medicinal plants, acid digestion, diuretics, absorption atomic spectrophotometry, k 0 instrumental neutronactivation analyses.File: E02_206.pdf

DESIGN AND CONSTRUCTION OF THE FACILITY FOR NEUTRON DEPTH PROFILING

IN RESEARCH REACTOR RECH-1

Octavio Mutis P., Gustavo Navarro A., Carlos Henríquez A. Claudio Pereda

Abstract: Here is described the experimental facility for Neutron Depth Profiling, NDP, constructed at the CCHENlaboratories, as well as some general aspects of the technique. It is also shown applications to the concentrationanalysis of 10B and 6Li as a function of depth for borophosphosilicate glass, BPSG, and for a thick sinter of 6Li in a zinc-nickel-manganese oxide. Achieved depth resolution is comparable to that obtained in reference advanced laboratoriesKeywords: neutron depth profile, range profiles, implantation.File: E02_517.pdf

2002VI ENAN

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ENVIRONMENTALENVIRONMENTALSCIENCESSCIENCESEE 0303ENVIRONMENTALENVIRONMENTALSCIENCESSCIENCESEE 0303ENVIRONMENTALENVIRONMENTALSCIENCESSCIENCESEE 0303



inac2002VI ENAN

Environmental SciencesESTUDO DA VARIABILIDADE TEMPORAL DIURNA DE δ15N E δ13C EM EFLUENTES DOMÉSTICOS DA CIDADE DE

PIRACICABA (SP)

Renato A. O. Evangelista; Milton J. Bortoletto Júnior; Jefferson Mortatti

Abstract: Diurnal variability concentrations and δ13C of DOC (dissolved organic carbon), DTC (dissolved total carbon)and POC (particulate organic carbon) as well as concentrations and δ15N of NH4

+ and PON (particulate organicnitrogen) have been measured using a ANCA-SL mass spectrometry in three points of raw sewage inputs withinPiracicaba river. The results shows an important variability in the isotopic signatures and concentrations of the nitrogenand carbon forms during the diurnal period that can be successfully used to characterize and to distinguish threetypes of investigated effluents.Keywords: domestic sewage, carbon, nitrogen, stable isotopesFile: E03_242.pdf

DIAGNÓSTICO DA QUALIDADE DO AR NA REGIÃO CIRCUNVIZINHA AO CDTN

Cláudia Marques Peixoto e Altair Drumond de Souza

Abstract: The main goal of this paper is to present the diagnosis of the air quality in the surrounding region of theCentro de Desenvolvimento da Tecnologia Nuclear - CDTN. The diagnosis is based on the data produced by theaerosols monitoring program, as part of the Environmental Monitoring Program of the CDTN. The aerosols monitoringprogram has the purpose characterizing the radioactive material in suspension and the particle material in suspension.The statistical treatment of the data allows to compare the results obtained by the monitoring program, in the periodof 1997 to 2001, and the meteorological data collected by the meteorological station of the CDTN. This processallows to relate these data and to establish the cause - effect relations between the concentration of the radioactivematerial and particle material in suspension with the meteorological data of the region.Keywords: radioecology; dose assessment, radiological impact, radionuclide dispersion, mathematic models.File: E03_120.pdf

RADIONUCLIDE SURFACE WATER TIME SERIES IN THE ATLANTIC OCEAN

Pavel P. Povinec and Toshimichi Ito

Abstract: In the framework of the IAEA’s WOMARS (Worldwide Marine Radioactivity Studies) project 90Sr, 137Cs and239,240Pu time series in surface water and the water column of the world ocean have been developed. In the presentpaper, 90Sr, 137Cs and 239,240Pu time series in surface waters of the Atlantic Ocean are presented and discussed indetail. Average 90Sr, 137Cs and 239,240Pu levels in surface waters of the north, central and south Atlantic Ocean havebeen estimated to be from 1.2 to 0.4, 1.7 to 0.6 and 5 to 1.8 Bq/m3, respectively. The effective half-lives of 90Sr, 137Csand 239,240Pu in surface waters of the Atlantic Ocean have been estimated to be 22±2, 20±3 and 9±1 years, respectively.Keywords: 90Sr, 137Cs, 239,240Pu, seawater, atlanticFile: E03_394.pdf

CINÉTICA DE ADSORÇÃO DE Cu EM TURFA

Sérgio L. G. Petroni, Maria A. F. Pires and Casimiro S. Munita

Abstract: The aim of this work is to study adsorption kinetics of Cu2+ ions from aqueous solution on peat from SantaCatarina State. Kinetics studies were carried out in batch with the peat in contact with copper solutions at differentinitial concentrations at pH 4,5. Radiotracer 64Cu (T1/2 = 12,8h) was used to evaluate the behavior of copper ions insolutions submitted to peat contact. The obtained experimental data were fitted to a pseudo-second order equation.Information obtained from the kinetic model are possible to be used on the development of a system for the removalof copper from effluents and wastewaters.Keywords: peat, copper, adsorption, kinetics.File: E03_381.pdf



inac2002VI ENAN

Environmental SciencesCOMPORTAMENTO CINÉTICO DO MANGANÊS NUMA FLORESTA DE MANGUEZAL - ITACURUÇÁ, RJ

Fátima de Paiva Canesin, Alfredo Victor Bellido Jr. e Luis Fernando Bellido

Abstract: The redox cycling of manganese has pronounced effects on the adsorption of trace elements onto oxidesurfaces is leaving these unavailable for the biota. Specific constants for the kinetics oxidation reaction of Mn inmangrove ecosystems have been measured. Water samples with different characteristics were collected in a tidalcreek in a mangrove forest growth at Itacuruçá, RJ. The methodology used to study the kinetics was, incubation ofthe water, in laboratory, with Mn-54. The oxides precipitates were filtered at constant intervals of time. The Mn-54decay on the filters and filtrates were counted, for 600 s, in HPGe and associated electronics ORTEC. Ln A x tdiagram showed an autocatalytic kinetic behavior. Temperature, pH, O 2 dissolved, salinity, Mn (II) and Mn (IV) wereappraised. The rate constant k ‘1 varied from 1,0 x 10–5 to 4,0 x 10-5 s–1. The k’2 rate constant had a larger variation,according to the other kinetic model that shows more of a heterogeneous affect, or catalysis via bacteria. We found amean half life for Mn(II) of 12 h for the homogeneous kinetics in the mangrove. Rate constants increased with the pH,temperature, O 2 dissolved, tide height, and decrease with salinity.Keywords: manganese, radiotracer, Kinetics, water, mangrove.File: E03_358.pdf

DISTRIBUIÇÃO DE RADIONUCLÍDEOS NATURAIS NOS PRODUTOS DA FABRICAÇÃO DE ÁCIDO FOSFÓRICOCOM ROCHA FOSFÁTICA DE ITATAIA - CEARÁ

Henrique T. Fukuma, Elisabete A. De Nadai Fernandes, Antonio L. Quinelato

Abstract: A high-uranium phosphate rock from the Itataia deposit, located in the state of Ceará, was milled in a pilotplant for dihydrate wet-process phosphoric acid production. The uranium contained in the phosphoric acid wasrecovered using liquid-liquid extraction. The mixture DEHPA (dietyl hexyl phosphoric acid) and TOPO (trioctylphosphine oxide) was used as extractant. Uranium separated from the phosphoric acid was precipitated as ammoniumdiuranate. The distribution of natural radionuclides with long half-life of the 238U and 232Th decay series was evaluatedin the products and wastes generated in the phosphate rock milling. Considering the initial activities in the phosphaterock, 93.3 % of 226Ra, 99.6 % of 228Ra and 98.6 % of 210Pb were found in the phosphogypsum, while 93.8 % of thoriumisotopes (228Th, 230Th and 232Th) predominated in the uranium-free phosphoric acid.Keywords: phosphate rock, natural radionuclides, uranium, thorium, phosphoric acid.File: E03_046.pdf

INCORPORATING EXTERNALITIES IN THE ASSESSMENTOF DIFFERENT ENERGY OPTIONS FOR ELECTRICITY PRODUTION

Vanusa Maria Feliciano Jacomino, Jair Albo Marques de Souza, Suely Epsztein Grynberg e Ivan Dionysio Aronne

Abstract: The production of electricity considering its full chain cycle arises major local, regional and globalenvironmental impacts. This fact and the need of several countries to establish energy plans for the next decadesand also the recognition that environmental issues are playing important role in the decision-making process justifythe interest in appropriate and comprehensive methodologies and tools to deal with this matter, to be applied mainlyin the power sector. The main aim of the present investigation was the implementation and application of a simplifiedmethodology based on the impact pathway (or damage function) approach which is being proposed by InternationalAtomic Energy Agency (IAEA) for the estimation of externalities arising from the full chain cycle of different energysources for electricity production in its Member States. The externalities arising from different options, includingcoal, oil, gas and nuclear, were estimated. A computer model based on the optimization of non-linear functions wasused as a support tool for decision-making in the power sector. Taking into consideration the externalities from theair emissions of different options, nuclear power is the best solution even taking into consideration the effects of highconsequence/low probability accidents. It should be noted that this investigation is not only being used to implementan environmental database, but also in enhancing the Brazilian capability in evaluating the different energy optionsfor electricity production in the framework of sustainable development.Keywords: energy, risk assessment, externalities.File: E03_003.pdf



inac2002VI ENAN

Environmental SciencesDETERMINAÇÃO DE δδ15N EM EFLUENTES URBANOS POR MICRODIFUSÃO AMONIACAL À VÁCUO

Jefferson Mortatti, José A. Bendassolli, Paulo C. O. Trivelin, Rosa A. Valério, José A. Bonassi

Abstract: Due to the fact of the steam-distillation method to be more labor-intensive and subject to the cross-contamination, the diffusion techniques have replaced the steam-distillation procedure as the method for chemicaland isotopic determination of the N-inorganic species in soil extracts, natural waters and domestic sewage. Theammonia diffusion method developed for automated 15N analysis using acidified disks generally requires a longdiffusion period of 72 to 144 hours and even than recovery may be incomplete. A simple method was proposedintroducing the diffusion technique under vacuum in a cell of 50 mL. The diffusion period was reduced to 8 hoursand the recovery of the 15N-ammonium sulphate (20o/oo) was 95 to 100%.Keywords: microdiffusion, inorganic-N, domestic sewage, river water.File: E03_122.pdf

UM ESTUDO COMPARATIVO DE MODELOS DE LIBERAÇÃO DE HEXAFLUORETO DE URÂNIO (UF6)

Cláudia Cristina Braga e José Messias de Oliveira Neto

Abstract: The present work compares three different dispersion models that can be used to simulate accidentalreleases of UF6 into the atmosphere. The computer programs HGSYSTEM/UF6, RASCAL and a gaussian plumemodel are used. The results are presented in terms of HF concentration in the air and uranium intake to individualsexposed. These results are compared with acceptance criteria used to define the safety classification of systems,structures and components. A criterion for emergency planning is also used. A discussion is made to show thedifferences between the results obtained with the three models, and the possible impact on the design and licensingof a uranium production facility.Keywords: dispersion models, UF6, computer programs, uranium intake, hgsystem.File: E03_127.pdf

EMPREGO DA FLUORESCÊNCIA DE RAIOS X DISPERSIVA PARA AVALIAÇÃO DA POLUIÇÃO POR METAISPESADOS EM AMOSTRAS DE ÁGUA E SEDIMENTOS DE LAGOS

Ana Elisa Sirito de Vives; Sandra Maria Boscolo Brienza; Virgílio Franco do Nascimento Filho e Silvana Moreira

Abstract: The energy dispersive X-ray fluorescence technique (EDXRF) was used to determine metals concentrationin water and bottom sediments samples in lakes at Santa Gertrudes region, São Paulo state, Brazil. The studied areais about 12 ha, with several lakes formed by argil extraction and present high volume of waste which can be dangerousand cause risks to water flora and fauna and also to human health by direct or indirect contact with the residues. Toevaluate contamination degree by heavy metals water samples were collected in three lakes, in 2000 July andNovember, corresponding to the dry and rainy season. In two lakes the sampling procedure were superficial, and inthe third lake, sampling was done at central region and in different deepness. Sediment samples were collected attwo lakes, in 2000, July (dry) and November (rainy). To determine biologically available metals concentration (no-residual fraction) in the sediment, an acid extraction procedure was used. To quantitative analysis of both samples,metals were pre concentrated by complexation with ammonium pyrrolidine dithiocarbamate (APDC). Samples wereexcited with a X-ray tube with Mo target and Zr filter, operated at 25 kV/10 mA, and X-ray characteristics measurewere done with a Si(Li) semi conductor detector. In water samples, were determined the elements Fe, Cu, Zn andPb. Among the analyzed elements, Fe presented the highest concentration, independent of the sampling local. Wasverified that all the analyzed elements presented concentrations below the maximum limit allowed to waters class 2,which may be distributed to domestic provisioning, to primary contact recreation, to vegetables and fruitier plantsirrigation and to the natural and/or intensive breeding (agriculture) of species destined to the alimentation. In thesediment samples were determined Fe, Co, Ni, Cu, Zn and Pb, and was observed high contents to the elements Fe,Zn and Pb and relatively low concentrations of Co, Ni and Cu. It was verified that all analyzed elements presentedhighest concentration in the dry season as to water samples as to sediment samples, indicating a seasonal variationin elements concentration.Keywords: trace element analysis; X-ray fluorescence; heavy metals; Water samples; sediment samplesFile: E03_413.pdf



inac2002VI ENAN

Environmental SciencesGROUNDWATER RESOURCES AND REGIONAL ENVIRONMENTAL RADIONUCLIDE CONTAMINATION

Igor S. Zektser, Liliya M. Rogachevskaya

Abstract: Drinking water of good quality is considered as an absolutely necessary component of sustainabledevelopment of territories and their inhabitants. The environmental radionuclide contamination problem after humanactivities is at the edge in modern world in accordance with the sustainable development task. The regionalcontamination is affected the local and regional surface water-catchment areas, as well as the recharge areas ofshallow unconfined and some stratum aquifers used for centralized water supply of the population. The obtainednew data (UNDP (United Nations Development Programme) Project RUS/95/004 of the Russsian Federation) onthe radioecological state and the preliminary predictions within contaminated territories do not enable to considergroundwater as throughout reliably protected against radionuclide contamination. During exploitation shallow waterthe location of water wells within divides essentially decreases the low-quality drinking water obtaining risk Thestrategy must be aimed at obligatory of reliably protected deep groundwater in water supply systems.Keywords: groundwater resources, regional radionuclide contamination.File: E03_335.pdf

APLICAÇÃO DO MODELO DE DOIS COMPONENTES PARA CÁLCULO DE ERRO, À ANÁLISE DE DADOS DEMONITORAÇÃO AMBIENTAL

Maria Angélica G.Carvalho e Goro Hiromoto

Abstract: Analysis and interpretation of results of an environmental monitoring program is often based on the evaluationof the mean value of a particular set of data, which is strongly affected by the analytical errors associated with eachmeasurement. A model proposed by Rocke & Lorenzato assumes two error components, one additive and onemultiplicative, to deal with lower and higher concentration values in a single model.In this communication, an application of this method for re-evaluation of the errors reported in a large set of results oftotal alpha measurements in a environmental sample is presented. The results show that the mean values calculatedtaking into account the new errors is higher than as obtained with the original errors, being an indicative that theanalytical errors reported before were underestimated in the region of lower concentrations.Keywords: environmental data, statistical analysis, two-component model, uncertainty.File: E03_318.pdf

ANÁLISE POR ATIVAÇÃO COM NÊUTRONS DA PLANTA TRADESCANTIA PALLIDA PARA USO NA MONITORAÇÃODE POLUENTES ATMOSFÉRICOS

André K. Tavaraya, Mitiko Saiki, Nairo M. Sumita, Paulo H. N. Saldiva

Abstract: Tradescantia pallida ( Rose) D.R. Hunt. cv. Purpurea is a plant from Commelinaceae family easily cultivatedeven in regions with high level of pollution. In recent years, Tradescatia plants have become widely acknowledged fordetection of clastogenic effects of heavy metal ions by micronuclei assay and it is suggested to be used to biomonitormetal-contaminated soils.In this work, elemental concentrations were determined in T. pallida plant leaves collected in two sites of São Paulocity: Jabaquara and Cidade Universitária and from a clean region called Caucaia do Norte, to evaluate the possibilityof using this species in the atmospheric pollutant biomonitoring. The method of instrumental neutron activationanalysis was used in the evaluation of elements accumulated by this plant. Comparisons were made between theresults obtained for T. pallida from different sites. The accuracy and the precision of the analytical results were alsoevaluated by analyzing certified reference materials NIST 1515 Apple Leaves and NIST 1570a Spinach Leaves. (Acknowledgments to FAPESP, CNPq and IAEA).Keywords: neutron activation analysis, Tradescantia pallida, biomonitoring, environmental pollutionFile: E03_461.pdf



inac2002VI ENAN

Environmental SciencesDISPONIBILIDADE DE METAIS PESADOS EM SEDIMENTOS DE LAGOS UTILIZANDO TÉCNICAS DE EXTRAÇÃO

QUÍMICA E DE FLUORESCÊNCIA DE RAIOS X

Sandra Maria Boscolo Brienza; Ana Elisa Sirito de Vives,Virgilio Franco do Nascimento Filho e Silvana Moreira Simabuco

Abstract: Aiming to evaluate contamination degree by heavy metals in bottom sediments at the lakes at the SantaGertrudes region, São Paulo State, Brazil, where ceramic industries of enameled pavement are installed, bottomsediment samples were collected in two lakes, in diferent seasons (rainy season and dry season). To determinebiological availability metal concentrations (no-residual fraction), and the residual fraction (geological matrix), acidextraction procedure were implemented. To enhance analytical sensibility, the obtainded extracts werepreconcentrated by complexation with ammonium pyrrolidine dithiocarbamate (APDC). To detemine the complexedmetals concentration, were used the analytical technique energy dispersive X-ray fluorescence analysis (EDXRF).To produces characteristic X-rays it was used an X-ray tube, and to detect the characteristic X-rays, a Si(Li) detector.The X-ray net intensities were obtained using the AXIL software. In the analyzed samples were possible to determinethe elementos V, Cr, Mn, Fe, Co, Ni, Cu, Zn and Pb.Keywords: X-ray fluorescence, heavy metal, sediment.File: E03_433.pdf

A PRELIMINARY STUDY ON THE BEHAVIOUR OF TRACE ELEMENTS IN SEDIMENT CORES FROM ILHA GRANDE(RIO DE JANEIRO) BY NEUTRON ACTIVATION ANALYSIS

Julio Cesar Wasserman, Ana Maria G. Figueiredo, André Luiz Figueira and Alphonse Kelecom

Abstract: The present work aims to identify atmospheric and marine inputs of 9 metals (Ba, Co, Cr, Cs, Fe, Hf, Rb, Sc,Zn), 8 rare earths (La, Ce, Nd, Sm, Eu, Tb, Yb e Lu), 2 actinides (U, Th) and 3 non-metals (As, Sb, Se) in sedimentcores from a remote area, the Biological Reserve of Praia do Sul, Ilha Grande, Rio de Janeiro, Brazil. The sedimentcores were sampled in a peat bog (out of the tidal reach) and in a mangrove, downstream of the peat bog. Theanalytical technique employed was Instrumental Neutron Activation Analysis. The samples were irradiated for 16hours at a thermal neutron flux of 1012 n cm-2 s-1 at the IEA-R1 reactor of IPEN. The measurements of the inducedgamma-ray activity were carried out by high resolution gamma spectrometry, with an hyperpure Ge detector. Apreliminary sediment dating with Po-210 was also carried out by applying radiochemical procedures andmeasurements were done in an Alfa spectrometer The results indicate that the peat bog core present a slight surfaceenrichment that can be attributed to atmospheric inputs. Increasing concentrations of metals with age is probablydue to history of soil occupation. In the mangrove core, no significant increase in concentration could be detected inthe surface sediments (except for Zn) confirming the suitability of the peat bog core as a tracer for atmospheric inputsKeywords: sediment cores, trace elements, INAAFile: E03_464.pdf

NÍVEIS DE 210Pb E 210Po EM ÁGUAS DOS CANAIS DO SISTEMA COSTEIRO CANANÉIA-IGUAPE (SÃO PAULO, BRASIL)

Roberto T. Saito, Rubens C. L. Figueira, Moyses G. Tessler e Ieda I. L. Cunha

Abstract: In this work the 210Pb and 210Po levels in seawater samples of the estuarine channels of the system Cananeia-Iguape, collected among the years from 1998 to 2000, were determined. After the sample preconcentration byevaporation, radiochemical methods were applied to the analysis of those radionuclides, that were detected by alphaspectrometry. The levels for 210Pb varying from 2.3 to 6.2 mBq.L-1 and for 210Po values from 1.1 to 4.1 mBq.L-1. Thehighest levels were found in the channel near to the Valo Grande station and the lowest in the area of Cananeia. Thehighest values found a Valo Grande should be associated to the larger contribution of Ribeira of Iguape river. Thelevels of these radionuclides observed in the estuarine waters are in agreement with the data obtained by otherauthors.Keywords: ecosystem estuarine, seawater samples, 210Pb, 210Po, alpha spectrometry.File: E03_477.pdf



inac2002VI ENAN

Environmental SciencesINGESTÃO DE 210Pb E 210Po PELO CONSUMO DE PEIXES NO SISTEMA CANANÉIA-IGUAPE, SÃO PAULO, BRASIL

Roberto T. Saito, Rubens C. L. Figueira, Moyses G. Tessler e Ieda I. L. Cunha

Abstract: In this work the ingestion of 210Pb and 210Po in the Cananeia–Iguape System, coast south of the Sao PauloState was estimated. After the dissolution of the fish muscle (by microwave) radiochemical methods were applied forthe analysis of those radionuclides. 210Pb was detected by using a Geiger-Muller detector while 210Po by alphaspectrometry. The estimates of individual ingestion of 210Pb and 210Po for the fish of higher economical importance forthe population of the System were of 0.004 and 0.035 Bq.d -1, respectively. Although, the levels of individual ingestionof these radionuclides obtained in this work are below the recommended levels it is advisable a periodic monitoringof these radionuclides in estuarine samples, especially, for the organisms such as fish that can be used as bio-indicators of 210Pb and 210Po.Keywords: ecosystem estuarine, fish samples, individual ingestion, 210Pb, 210Po.File: E03_476.pdf

ANÁLISE DE ESPÉCIES DE LIQUENS EPIFÍTICOS PARA USO NA BIOMONITORAÇÃO DE POLUENTESATMOSFÉRICOS

Alessandra Fuga, Mitiko Saiki, Marina B. A. Vasconcellos, Neli K. Honda, Onofre S. Siqueira

Abstract: Lichens are recognized as potential indicators of air pollution and they have been widely studied to be usedas biomonitor of heavy metals. In this work, neutron activation analysis method was applied in the analysis of epiphyticlichen species Usnea meridionalis, Parmotrema tinctorum and Parmotrema dilatatum, collected in Vila Piraputanga,MS, Brazil. Concentrations of the elements Al, Br, Ca, Cl, Fe, K, Mg, Mn, Na, Rb, V and Zn were determined at thelevels of µg g -1 and As, Cs, Cr, Co, Hf, Mo, Sb, Sc, Se, Th and lanthanide elements at ng g -1 levels. Results obtainedshowed that these three lichen species could be used in the environmental biomonitoring purposes. The precisionand the accuracy of the results were also evaluated by analyzing certified reference materials IAEA 336 Lichen and1547 NIST Peach Leaves.( Agradecimentos a FAPESP, CNPq, FUNDECT e AIEA pelo apoio financeiro).Keywords: lichen, neutron activation analysis, environmental pollution, biomonitorsFile: E03_475.pdf

MIGRATION OF 226 Ra, 228 Ra, 210Pb, U AND Th FROM PHOSPHOGYPSUM

Nivaldo Carlos da Silva, Elisabete A. De Nadai Fernandes , Moacir Cipriani and Maria Helena T. Taddei

Abstract: The physico-chemical availability of radioactive elements (210Pb, 226Ra, 228Ra, Th and U) in Brazilianphosphogypsum was investigated in a large scale leaching experiment carried out in lysimeters, using phosphogypsumsamples (approximately 1.2 tons) from two phosphoric acid industries. Lysimeters were built using cylindrical concretecontainers with 0.9 m inner diameter and 2 m depth. The bottom of the lysimeter was filled with a 10 cm layer ofgravel covered with geomembrane sheet. Under this layer a pipe was designed to drain the percolated water. Threelysimeters were filled with phosphogypsum from each industry and a mixture of both. As percolated water comesexclusively from the rain, sample was collected daily when available. Samples were then pooled weekly, carefullyprepared and submitted to radiochemical analysis. Radiochemical characterization of phosphogypsum andpercolated water was performed by radiochemical separation followed by gross alpha and beta counting (226Ra,228Ra and 210Pb) and UV-Vis spectrophotometry with Arsenazo III (U and Th). This experiment was carried out from12/01/1999 to 01/22/2001, with a precipitation of 2,732 mm. It was observed that approximately 40% (534 L) of therain fall percolated through the lysimeter 1. The analysis of 22 samples of percolated water from lysimeter 1 showedmean radionuclides activities of 70 ± 30 mBq L-1, 70 ± 50 mBq L-1, 100 ± 60 mBq L -1 and 110 ± 55 mBq L-1 for U, 226Ra,228Ra and 210Pb, respectively. Thorium activities were below detection limit.Keywords: phosphogypsum, natural radioactivity, radionuclides, leachability.File: E03_509.pdf



inac2002VI ENAN

Environmental SciencesIDENTIFICATION OF METALS IN BORDERING SOILS AND SEDIMENTS OF LAKE IPÊ-MS, BRAZIL, BY EDXRF

TECHNIQUE

Sônia Regina G. Barreto, Wagner J. Barreto, Jorge Nozaki,Virgílio F. do Nascimento Filho, Pedro Henrique A. Aragão

Abstract: Lake Ipê, located in a floodplain area of Parana River, is an ecosystem that apparently does not show signsof pollution. The samplings of sediments in this lake, with a surface area of approximately 10,700 m 2, were taken atthe central point. The soil samples were gathered in a terrestrial area close to the lake not exposed to inundation byoverflowing. The qualitative determinations of the main metals, Mg to Pb in soils and sediments were performed byEDXRF. The comparative study among peaks areas analysis of metals by EDXRF in soils and sediments indicatedthat the concentration of Fe, Zn, and Ga in sediments were respectively 3.29, 4.32, and 7.04 times higher than thesoils. On the other hand, the concentrations of Rb and Pb were 100 and 1,552 times higher in sediments. The peakareas of K, Co, Ni, and Cu in sediments were practically twice in the soil samples. The peak areas of Ca, Ti, Cr, andMn were equivalents in both compartments. The absence of Pb in soils, and the high concentrations observed insediments, indicated that Pb came from allochthonous sources carried by water of Parana River and not by lixiviationof adjacent soils.Keywords: sediments, soil, EDXRF, metals, lakesFile: E03_515.pdf

ESTUDO DO DESEQUILÍBRIO RADIOATIVO EM ROCHAS VULCÂNICAS DO MONTE CAMEROON (REPÚBLICA DOS CAMARÕES - ÁFRICA)

Rosana Nunes dos Santos, Leila Soares Marques e Fernando Brenha Ribeiro

Abstract: This work presents U and Th concentrations, obtained by two analytical techniques in igneous rocks fromCameroon Mount and from Bambouto Mount Volcanic Complex, located at western Camarões Republic (Africa).The 238U and 226Ra specific activities, belonging to the 238U series, as well as those of 228Ra and 228Th, belonging to the232Th series, were determined by high resolution natural gamma spectrometry with hyperpure germanium detector.U and Th concentrations were also obtained by epithermal neutron activation analysis. The preliminary results showedthat most of the analyzed samples are in disequilibrium condition for 238U series. In the case of the 232Th series, theradionuclides 228Ra e 228Th are in secular radioactive equilibrium for all analyzed samples and additional data arerequired to investigate if secular disequilibrium between 232Th and 228Ra exists.Keywords: U and Th concentrations, Cameroon Mount, natural gamma spectrometry, 238U serie disequilibrium,igneous rocks.File: E03_519.pdf

AVALIAÇÃO DA DOSE EFETIVA ANUAL DEVIDA AO FUNCIONAMENTO DA UNIDADE DE CONCENTRADO DEURÂNIO URA - CAETITÉ – BA – BRASIL

Wagner de Souza Pereira e Delcy de Azevedo Py Junior.

Abstract: The annual effective dose increase estimate was calculated as one of the ways to evaluate environmentalradiological impact from Uranium Concentrate Unity - URA operation. This evaluation has the objective of verifyingsafe environmental conditions maintenance for the population around the Unity, and to estimate this population annualeffective dose increase. Dose calculations was done for U-238 natural series radionuclides, having inhalation ofradionuclides, immersion in the plume, dose from soil deposition and ingestion of vegetables and animal produces,been considered.In analyzing results we notice that the hightest increase value is 3,28 x 10-3 mSv/year.Keywords: radioecology, radiologiclal impact, mathematic model, dose assessment, uranium miningFile: E03_590.pdf



inac2002VI ENAN

Environmental SciencesAPLICAÇÃO DA FLUORESCÊNCIA DE RAIO X NA DETERMINAÇÃO DE COMPONENTES INSOLÚVEIS NAS ÁGUAS

DE PRECIPITAÇÃO EM REGIÃO CONTINENTAL SUBTROPICAL

Maria Cristina Solci, Aléscio Fachim Pelicho, Pedro Henrique Arruda Aragão, Virgílio Franco Nascimento Filho

Abstract: Wet and bulk rainwater samples were collected during the year 2001 at Londrina, Brazil. Two phases wereanalysed, the soluble fraction was obtained with a 0,8 µm filtration and the insoluble particulate material was collectedon the cellulose membrane filter. pH and major ions (NO3

- and SO4=) were determinated by ion chromatography.

Elemental composition of the filtration residues was conveniently determined by EDXRF technique. The correlationcoefficients between some metals in wet and bulk deposition sample were calculated in order to reveal commonsources. The metals Fe, Ti and Mn were well correlated indicating their crustal origin. Pb, Zn and Br had highcorrelations indicating anthropogenic local emissions.Keywords: rain, dry deposition, ions, metals; EDXRFFile: E03_541.pdf

DETERMINAÇÃO DOS PARÂMETROS NECESSÁRIOS PARA AVALIAÇÃO DO IMPACTO AMBIENTALDECORRENTE DA UTILIZAÇÃO DO FOSFOGESSO

Celso Eduardo Braz , Nivaldo C. da Silva, José F. Macacini , Fernando B. Ribeiro e Maria Helena T. Taddei

Abstract: The phosphogypsum, a by-product from phosphoric acid industries, is produced in huge amounts, andlaying on stacks next to industries that may be prejudicial to the environment and to the people that live near by.Nowadays, this product is used as a soil amendment, nevertheless this application uses just a small amount ofphosphogypsum. Other possible uses for the material, seeing also to reduce the amount of phosphogypsum in thestacks, are embankments and road constructions.The presence of radionuclides (namely 226Ra and 222Rn) puts restriction on the use of phosphogypsum in buildingmaterials. 222Rn is a noble gas naturally radioactive, generated from the decay of 226Ra. Thereof, quantify the emissionof this 222Rn is necessary to verify the viability of usage of this phosphogypsum.To estimate the amount of 222Rn exhaled from phosphogypsum is necessary to determinate some physic parameterslike grain size, porosity, density of grains, moisture and emanation coefficient. To evaluate the environmentalradiological impact is also needed to know the permeability coefficient. These determinations were done by tests,following technical national standard or procedures used before by other researchersKeywords: phosphogypsum, radon exhalation, natural radioactivityFile: E03_574.pdf

MODELO DE CAMADA LIMITE PLANETÁRIA PARA ESTIMAR A CONCENTRAÇÃO DE RADIONUCLÍDEOS EMLIBERAÇÕES ACIDENTAIS

Leslie de Molnary

Abstract: A two layer bulk model is used to simulate numerically the time and spatial evolution of concentration ofradionuclides in the Planetary Boundary Layer (PBL) for convective and stable conditions. In this model, the closurehypothesis are based on the integrated version of the Turbulent Kinetics Energy (TKE) equation. This type of modelwas adopted here because it is numerically simple to be applied operationally in routine and emergency supportsystems of atmospheric releases at nuclear power plants, and the hypothesis of the efficiency of the vertical mixingseems to be physically reasonable to simulate PBL evolution for high wind conditions and stable conditions insubtropical latitudes regions. In order to validate the model, numerical simulations were carried out with initial andboundary conditions based on vertical profiles of temperatures and horizontal wind speed and direction obtainedfrom tethered balloon soundings, synoptic charts at 850 hPa and surface observations. Comparisons between a 24hour long numerical simulation and observations indicate that the model is capable of reproduce the diurnal evolutionof temperature and horizontal wind during the convective regime. During stable conditions, the slab model was ableto simulate the intensity of the surface inversion as a difference between the mixed layer and the surface temperature.The simulated mixed layer height matches with observations during the convective and stable regime.Keywords: atmospheric dispersion, numerical modeling, safety analysis, meteorology, mixing-layerFile: E03_740.pdf



inac2002VI ENAN

Environmental SciencesESTUDO DA RADIODEGRADAÇÃO DOS COMPOSTOS ORGÂNICOS ODORÍFICOS GEOSMINA E ETILISOBORNIOL

PRESENTES EM ÁGUA DO SISTEMA GUARAPIRANGA

Celina Lopes Duarte, Maureen K. Sakagami, Caetano A. Mautone,Maria Helena de Oliveira Sampa, Sueli I. Borrely, Elizabeth S. Somessari

Abstract: The pollution of the reservoir by clandestine domestic wastewater and garbage has taken to the occurrenceof alterations in the taste and odour of public drinking waters in São Paulo City. These changes are due to theseaweed proliferation in water from Great São Paulo Public System, composes mainly by Guarapiranga and RioGrande. The main responsible organic composites for the taste and odour of consumed drinking waters are geosmine(GEO) and methylisoborniol (MIB). In the present work the efficiency of the treatment with gamma radiation on removalof GEO and MIB and for the improvement of the water quality, was evaluated. For this study it was used water samplesfrom Water Treatment Plant of Alto Boa Vista – SABESP, that were irradiated with doses of 0,5 kGy, 1,0 kGy, 2,0 kGyand 3,0 kGy. The radiation showed be efficient on GEO and MIB removal, improving the water quality by decreasingthe taste and odour.Keywords: drinking water, radiation processing, geosmine, methilisoborniolFile: E03_760.pdf

RADIAÇÕES IONIZANTES E O REUSO DAS ÁGUAS

Sueli Ivone Borrely; Maria Helena de Oliveira Sampa; Hiroshi Oikawa, CarlosGaia da Silveira, Celina Lopes Duarte e Eloisa Heelena Cherbakian

Abstract: The aim of the present paper is to point out the possibility of including ionizing radiation for wastewatertreatment and reuse. Radiation processing is an efficient technology which can be useful for water reuse once theprocess can reduce not only the biological contamination but also organic substances, promoting an importantacute toxicity removal from aquatic resources. Final secondary effluents from three different wastewater treatmentplant were submitted to electron beam radiation and the process efficacy was evaluated. Concerning disinfection,relatively low radiation doses (2,0 – 4,0kGy) accounted for 4 to 6 cycle log reduction for total coliforms. When radiationwas applied for general wastewater improvement related to the chemical contamination, radiation process reducedfrom 78% up to 100% the total acute toxicity, measured for crustacens, D. similis, and for V. fiscehri bacteria.Keywords: electron accelerator, radiation, wastewater reuse, disinfection and detoxification.File: E03_713.pdf

MONITORAÇÃO AMBIENTAL DA UNIDADE DE

CONCENTRADO DE URÂNIO ( URA) EM CAETITÉ, BA, BRASIL

Wagner de Souza Pereira e Delcy de Azevedo Py Junior

Abstract: The pre operational monitoring program has been executed in order to set a baseline, on which comparisonswith the same points and the same radionuclides will be made after beginning of operation, having the objective ofenvironmental impact evaluation, in the vicinity of the installation.The program was held in the period of 1982 to 1999, collecting nom biological environmental samples (aerosol, rainwater, surface water, underground water soil and sediment) and samples that are related to the human food chain(manioc, manioc flour, milk, browse, fish, been, corn, cactus and silage). The analyzed radionuclides are naturaluranium, natural thorium, Ra-226, Ra-228, Rn-222 and Pb-210.This work intends to analyze data from the last ten years, program(1989 – 1999), analyzing approximately 350 biologicalsamples and 3500 nom biological samples, in order to establishing the baseline to be used in future studies ofenvironmental impact.Keywords: radioecology, environmental monitoring, radiological impact, uraniun miningFile: E03_593.pdf



inac2002VI ENAN

Environmental SciencesMONITORAMENTO DOS NÍVEIS DE RADIOATIVIDADE ALFA E BETA GLOBAL EM ÁGUAS DE ABASTECIMENTO

PÚBLICO DO ESTADO DE SÃO PAULO

Ana Cláudia Peres

Abstract: The present work was based in the regulation number 1469 of Brazilian Health Ministery, of 2000, 29th o fdecember, that establishes the proceedings and responsibilities relatives to control and vigilance of water quality tohuman consumption and your gauge of potability. In the context the results of the analysis of the gross alpha andgross beta concentrations are presented. They were determinated in 143 samples of drinking water supplies of SãoPaulo State in the year of 2001. The gross alpha presented concentrations ranging from < 0,001 a 0,182 Bq/L, whilethe gross beta presented concentrations ranging from < 0,001 a 0,872 Bq/L.Keywords: natural radioactivity, gross alpha, gross beta, water qualityFile: E03_583.pdf

MODELAGEM DA DISPERSÃO DE RADIONUCLÍDEOS E CÁLCULO DE DOSE EFETIVA ANUAL NA UNIDADE DECONCENTRADO DE URÂNIO (URA), CAETITÉ – BA -BRASIL

Delcy de Azevedo Py Junior e Wagner de Souza Pereira

Abstract: Radionuclides dispersion modeling and annual effective dose are done in order to guarantee safeenvironmental conditions maintenance for the population around Uranium Concentrate Unity (URA), and to estimatethis population annual effective dose increase. The model is based on U-238 series natural radionuclides atmosphericdispersion, on this radionuclides transfer from environmental compartments and on this radionuclides concentrationconversion to annual effective dose increase. An Access code in Windows environment was developed for that,having fully opened source code, named Environmental Radiological Impact. Keywords: radioecology; dose assessment, radiological impact, radionuclide dispersion, mathematic models.File: E03_591.pdf

NOVO PROCESSO PARA TRATAMENTO DE EFLUENTES RADIOATIVOS

Flávia P. Puget , Giulio Massarani e Marcelo S. Carvalho

Abstract: In this work an alternative process for treating a wastewater containing dissolved uranium is considered. Inorder to develop this work, a continuous separation unit, characterized by the solvent extraction, carried out inwardthe ejector is used. Alamina 336 (a mixture of tri-octyl and tri-decyl amines) is used as extractant in this process. Thesplitting of the amine-water emulsion formed is carried out in a gravitational separation tank. The result showed thatit is possible to reach an efficiency of about 95% for the uranium extraction, for metal concentration in the feed of10ppm and a Q fa/Qfo ratio around 500. Furthermore, an efficiency of about 50% is reached for metal concentration inthe feed of 1ppm and for a Q fa/Qfo ratio around 1000, when the liquid flow rate is equal 1200L/h.Keywords: extraction, wastewater, uranium, emulsion, Alamina 336.File: E03_615.pdf

DISTRIBUIÇÃO DA RADIOATIVIDADE NATURAL NA FORMAÇÃO IRATÍ NA REGIÃO DE LIMEIRA, SP

Dionísio Uendro Carlos, Fernando Brenha Ribeiro e Antonio Roberto Saad

Abstract: Specific activities of 238U, 226Ra, 228Ra and 228Th and uranium, thorium and potassium concentrations weremeasured in permian limestone samples from a mine exposition of the Iratí Formation, Paraná Basin, in the city ofLimeira, Brazil. In general, these samples present low radioactive element concentrations, in the range of 0.87 µg/gto 3.3 µg/g for uranium, 0.34 µg/g to 1.7 µg/g for thorium and 0.013% to 0.24% for potassium, although a distincturanium (~13 µg/g ) enrichment can be observed in one limestone layer at the base of the exposition. The origin ofthis uranium enrichment could not be determined. Uranium series radioactive disequilibrium was observed in mostof the analyzed samples, whereas the 232Th series is in secular radioactive equilibrium in the samples.Keywords: natural radioactivity, Paraná Basin, permian limestones, gamma spectrometryFile: E03_681.pdf



inac2002VI ENAN

Environmental SciencesDISTRIBUIÇÃO VERTICAL DE ELEMENTOS MENORES E TRAÇOS POR ANÁLISE POR ATIVAÇÃO NEUTRÔNICA

INSTRUMENTAL NOS SEDIMENTOS DO ESTUÁRIO DE SANTOS E SÃO VICENTE, SÃO PAULO, BRASIL

Paulo S. C. da Silva; Barbara P. Mazzilli e Déborah I. T. Favaro

Abstract: Santos and São Vicente estuaries, located in São Paulo State, Southeast Brazil, comprises one of the mostimportant industrial regions of the country. Such activities contribute for the enhancement of pollutants in the environment.The impact arising form the transport and accumulation of chemical substances, e.g. heavy metals, as well as themechanisms of these processes are not fully understood. In this sense, much attention has been paid for the effluentdischarges enriched by chemical elements in the nearshore environment. The elements As, Ba, Br, Co, Cr, Cs, Hf, Rb,Sb, Se, Ta and Zr were analyzed in 27 sediment sample from Santos and São Vivente Estuary and from Santos Bay,aiming to determine the horizontal distribution of these elements. The obtained results was analyzed by means ofPearson correlation coefficient and cluster analyses. The utilization of a normalizer element is also discussed.Keywords: neutron activation analysis, trace elements, estuary sediment, Santos, São Vicente.File: E03_294.pdf

INFLUÊNCIA DA PRESENÇA DE METAIS NA EFICIÊNCIA DE DEGRADAÇÃO DE COMPOSTOS ORGÂNICOSPELA IRRADIAÇÃO COM FEIXE DE ELÉTRONS

Celina Lopes Duarte , Márcia Almeida Ribeiro, Hiroshi Oikawa,Ivone Mulako Sato, Maria Helena de Oliveira Sampa, Carlos Gaia da Silveira

Abstract: Actual industrial effluent from chemical, textile, pharmaceutical and d de G de destruição (Gd), yes has highlevel of organic compound, usually, together metals. The high efficiency of electron beam irradiation on removingorganic compound in industrial effluent has been showed. A study to evaluate the Advanced Oxidation Process byelectron beam irradiation to remove organic compound from simulated industrial effluent with two high metalsconcentration as Na, Cl, Ca, P, K, Si, Al, Zn, Fe, Mn, Cd, Pb, As e Hg, was carried out. The metals concentration wasdetermined with the technique of Wavelength Dispersion X-Ray Spectrometry Fluorescence (WD-XRF). Experimentswere conducted using a Radiation Dynamics Electron Beam Accelerator with 1,5MeV energy and 37kW power. Thesimulated effluent samples were irradiated in a batch system. The electron beam irradiation showed be efficient ondestroying the organic compounds dichloroethane, methylisobutilketone, toluene, xylene, benzene, chloroform,tetrachloroethilene and trichloroethilene, even in presence of metals, but in this case the efficiency is decreased. Toremove more than 90% of all organic compounds was necessary a 20kGy dose for free metals samples and 50kGy forthe two simulated effluent samples.Keywords: advanced oxidation process, industrial effluent, wastewater treatment, electron beam accelerator.File: E03_717.pdf

ESPECIAÇÃO E DETERMINAÇÃO DE ARSÊNIO E SELÊNIO EM AMOSTRAS DE ÁGUAS NATURAIS PORFLUORESCÊNCIA DE RAIOS X DISPERSIVA EM ENERGIA

Silvana Moreira e Maurício Abud Gregório

Abstract: This work had as main objective to study a method for separation and determination of Arsenic (III) and (V),and Selenium (IV) and (VI) present in aqueous solutions at trace level. For this purpose a preconcentration methodbased on the adsorption of the elements in activated charcoal loaded with zirconium (ZrC*) was used. The ion As (III)was better absorbed onto 200 mg ZrC* in pH 8, while, the ion As (V) presented better results when the absorption wascarried out onto 100 mg ZrC* with the pH adjusted for 2. The ions Se (IV) and Se (VI) presented a better absorptionwhen the solutions were adjusted for pH 4, but with different masses of ZrC*, 200 mg for Se (IV) and for Se (VI) just 100mg. The detection limits obtained by the X-ray fluorescence were 0.050 mg.L -1 and 0.009 mg.L -1 for As (III) and As (V),respectively. In the case of selenium the limits were 0.011mg.L-1 and 0.016 mg.L-1 for Se (IV) and (VI) species, respectively.The errors obtained by this methodology were smaller than 2% for the ion As (III) and smaller than 1% for As (V), Se(IV) and Se (VI)Keywords: As(III), As(V), Se(IV), Se(VI), energy dispersive , X-Ray fluorescenceFile: E03_342.pdf



inac2002VI ENAN

Environmental SciencesBIOACUMULAÇÃO E ELIMINAÇÃO DE MERCÚRIO POR PEIXE–REI (Xenomelanires brasiliensis)

- TÉCNICA DOS RADIOTRAÇADORES

Waldir Malagrino, Carlos Henrique de Mesquita e Eduinetty Ceci P. M. de Sousa

Abstract: The present work has as main objective to emphasized the importance of using radioactive tracers as well asto establish a methodology for the utilization of 203Hg in the bioaccumulation study of mercury by X enomelaniresbrasiliensis. The exposure time was 168 hours. The bioaccumutation of mercury from the water as well as the eliminationof the metal previously absorbed were determined by measuring the activity of 203Hg, which was added to the water inthe beginning of the experiments. The technique chosen is suitable to study the behavior of the stable mercury sincethe radioisotope used is an isotope of the same element and therefore presents the same chemical properties. Theresults obtained show that the absorption and elimination of mercury by Xenomelanires brasiliensis is slow, 168 hoursbeing necessary for the elimination of 38 % of the previously absorbed mercury. The results are of main concern if it isconsidered that the literature about bioaccumulation of mercury by the Brazilian ichthyofauna is scarce. Furthermorethe species Xenomelanires brasiliensis is part of the food chain and the results can be used in the evaluation of thepotential risk of the mercury bioaccumulation by fishes of higher trophic levels and by men who are the final link of thefood chain.Keywords: mercury, fish, bioconcentration , elimination , radiotracersFile: E03_538.pdf

REDUÇÃO DA TOXICIDADE DE SURFACTANTE SUBMETIDO À IRRADIAÇÃO COM FEIXE DE ELÉTRONS.RESULTADOS PRELIMINARES

Maria Cristina F. de Moraes, Sueli Ivone Borrely, Maria Helena de Oliveira Sampa,Hiroshi Oikawa e Maria Fernanda Romaneli

Abstract: The present paper aims the comprehension of ionizing radiation effects on surfactants and the improvementof sewage and industrial effluents where detergents are discharged. The surfactant related problems may includeacute and chronic toxicity, decreasing the dissolved oxygen in the waterways, and reducing the biodegradability capacity.In this sense, ionizing radiation has been applied to LAS and to industrial effluents for acute toxicity reduction associatedto the surfactants degradation. Radiation effects were preliminarily evaluated by the acute toxicity reduction when3kGy, 6kGy and 9kGy radiation doses were applied to surfactant (DSS). Toxicity studies were carried out with D.similisand with V. fischeri which evidenced an important acute toxicity removal by 79% for 6,0kGy. An important pH reductionwas followed by conductivity increasing as radiation dose was implemented.Keywords: surfactant, toxicity, D. similis, V. Fischeri, irradiation.File: E03_714.pdf

PREDICTION OF Rn-222 EXHALATION RATES FROM PHOSPHOGYPSUM-BASED EMBANKMENTS.PART I: PHYSICAL-MATHEMATICAL MODELING

José A. Rabi and Nivaldo C. da Silva

Abstract: Half of the average total dose received by human beings worldwide, namely 1.1 mSv, corresponds to theannual effective dose due to 222Rn. This radionuclide is found in phosphogypsum, which is a by-product from phosphatefertilizer industries. Despite there is a global interest in finding large-scale usage of this material, environmental issuesrelated to its management still remain, as far as the 222Rn exhalation rate is concerned. Radon diffusion mechanismthrough phosphogypsum-based embankments is a rather complex process and depends upon many physical factors,e.g. porosity, moisture and emanation power. In the first part of this paper, an existing physical-mathematical modelwas applied to simulate this transport phenomenon initially considering one-dimensional domain and steady-stateregime. The analytical solution obtained for the corresponding continuity differential equation was tested againstexperimental data and numerical solutions, reported in the second part of this paper.Keywords: radon exhalation, phosphogypsum, mathematical modelingFile: E03_557.pdf



inac2002VI ENAN

ENVIRONMENTAL EXTERNALITIES OWED TO THE ELECTRICITY GENERATION:

A COMPARISON BETWEEN THE NUCLEAR AND THE GAS GENERATION

Suely Epsztein Grynberg, Vanusa Maria Feliciano Jacomino, Ivan Dionysio Aronne

Abstract: In the evaluation of the options for the expansion of the electric power generation system, the economicalaspects are always considered in the decision process. More recently, the environmental aspects were introduced inthis process. This paper compares the expected impacts of the implantation of a gas power plant with the risks associatedto the nuclear plant option. To evaluate the impacts, due to the generation of electricity from the gas option, in thehuman health it was used the software EcoSense-Brazil/Latin America, developed by Institut für Energiewirtschaft undRationelle Energieanwendung-IER from the University of Stuttgart in Germany. To evaluate the risks associated to thenuclear power plant, a methodology developed by A. Markandya and R. Boyd [3] was used. We emphasize that theobtained results point the nuclear option as the one with smaller cost associated to externalities. We call the attentionfor the fact that a higher reliability of the results depends on an update of the environmental database, especiallymeteorological data, but these softwares are shown to be powerful tools for the process of decision-making in energyplanning.Keywords: impacts evaluation, energy planning, sustainable development, externalities, environment.File: E03_545.pdf

TRITIUM CONCENTRATION ANALYSIS IN ENVIRONMENTAL WATER SAMPLES OF CENTRO NUCLEAR ARAMAR

Marco Antonio P. V. Moraes, Marcelo Sartoratto,Bárbara Eliodora L. Sartoratto, Carolina B.Oliveira, Vivian A Mendes

Abstract: The experimental results are described obtained with liquid scintillation technique for the measurement oftritium (3H ) radiation background in surface water samples collected in Centro Experimental Aramar and surroundings, from 1990 to 1999. This centre is subordinated to Centro Tecnologico da Marinha ( CTMSP – São Paulo – Brazil )located in S. Paulo city ,a military research organisation whose objectives are to develop nuclear and energy systemsfor Brazilian naval ship propulsion. The estimated background average tritium concentration in this region is ( 25.9± 2.1 ) Bq / L . This value is compared with tritium concentration limit in drinking water established by E.P.A (Environmental Protection Agency - U.S.A ), and indicate a low natural background tritium radioactivity in CentroExperimental Aramar and region.Keywords : tritium, liquid scintillation, water samplesFile: E03_026.pdf

SIMULAÇÃO DA SORÇÃO DE AMERÍCIO NO SISTEMA EPU-DEHPA USANDO Fe(III)

Marcelo S. de Carvalho, Maria de Lourdes F. Domingues e José Luiz Mantovano

Abstract: A simulação da extração de amerício de efluentes foi realizada, em batelada, utilizando o íon Fe(III) comoindicador. Foram estudados parâmetros fisico-químicos da sorção de ferro (III) de meio clorídrico, usando um sistemade extração em fase sólida, constituído de espuma de poliuretano (EPU) modificada com o ácido di-etihexil fosfórico(DEHPA). Os efeitos da acidez, tempo de agitação, saturação do sistema e diluição da amostra foram avaliados pelatécnica de fluorescência de raios -X, direta na fase sólida, ou por controle do Fe(III) não extraído, por espectrofotometriacom ortofenantrolina. Os resultados indicam que a sorção do Fe(III) é quantitativa e praticamente constante, quandoa acidez varia entre 0,01 - 0,05 mol.L -1. Após 10 minutos de agitação a sorção é quantitativa, mantendo-se constanteaté 60 minutos e uma queda na eficiência de sorção da ordem de 20 % é observada, ao variar o volume da amostra,contendo o 50 mg de Fe, entre 50 e 200 mL, permanecendo constante (80% de sorção) até a diluição máxima testadade 900 mL. Considerando a semelhança com o amerício, DFe=DAm ~ 104 L.mol-1, pode-se concluir que o processo épromissor para a recuperação de Am de efluentes do tratamento de pára-raios e deve ser avaliado em sistema contínuo.Keywords: solid phase extraction, americium sorption, DEHPAFile: E03_603.pdf

Environmental Sciences



inac2002VI ENAN

Environmental SciencesPREDICTION OF Rn-222 EXHALATION RATES FROM PHOSPHOGYPSUM-BASED EMBANKMENTS.

PART II: NUMERICAL SIMULATION AND RESULTS

Dênis A. Bertozzi , José A. Rabi and Nivaldo C. da Silva

Abstract: As shown in the first part of this paper, equations for an attempt to simulate 222Rn activity along the axialdistance in phosphogypsum-based embankments were presented. For that, an existing one-dimension diffusive modelwith source and sink terms was applied. Knowledge of the 222Rn concentration activity profile enables the assessmentof the corresponding exhalation rate. In this second part of the paper, a preliminary version of the correspondingcomputational simulation program was tested against the analytical solution and steady-state experimental data. Thenumerical solution method followed a finite volume discretization on a structured orthogonal mesh. Grid points werelocated according to a cell-centered scheme and variables were stored in a collocated arrangement. The resultingalgebraic equation system was relaxed by either the Tri-Diagonal Matrix Algorithm or Gauss-Seidel method. Grid sizeindependence was observed as well. Numerical results are discussed upon and new developments and extensions ofthis first approach are pointed out.Keywords: radon exhalation, phosphogypsum, numerical simulation, natural radioactivityFile: E03_558.pdf

APLICAÇÃO DE 222Rn COMO TRAÇADOR DA DESCARGA DE ÁGUAS SUBTERRÂNEAS NA REGIÃO COSTEIRADE UBATUBA, SÃO PAULO

Joselene de Oliveira, William C. Burnett, Luciana A. Farias, Barbara P. Mazzilli, Elisabete de S. B. e Saraiva eValdenir V. Furtado

Abstract: Submarine groundwater discharge (SGD) and recycled seawater can provide chemical constituents to coastalzone, representing an important material flux pathway from land to sea in some areas. Geochemical tracers, like 222Rnand 226Ra, are advantageous for regional-scale assessment of SGD, because their signals represent values integratedthrough the water column that removes small-scale variations. These radionuclides are usually enriched in groundwatercompared to seawater, can be measured at very low concentrations and are conservative. This work reports preliminaryresults of a study carried out in a series of small embayements of Ubatuba, São Paulo State-Brazil, covering latitudesbetween 23°26´S and 23°46´S and longitudes between 45°02´W and 45°11´W. The main aims of this research were toset up an analytical method to assess 222Rn and 226Ra activities in seawater samples and to apply the excess 222Rninventories obtained to estimate the submarine groundwater discharge. Mesurements made during 2001/2002 included222Rn and 226Ra in seawater, 226Ra in sediment, seawater and sediment physical properties.Keywords: 222Rn in seawater, 226Ra in seawater, natural radionuclides as tracers, submarine groundwater dischargeFile: E03_624.pdf

ANÁLISE ELEMENTAR DE Alternanthera maritima E Blutaparon portulacoides(GOMPHRENEAE, AMARANTHACEAE) POR FLUORESCÊNCIA DE RAIOS X

M. J. Salvador; D. A. Dias; V. F. Nascimento Filho e O. L. A. D. Zucchi

Abstract: The phytochemical study and the evaluation of biological activities of plants species have been intensified inthe last years. The modernization of analytical equipment allowed significant progress in the natural products chemistry.Most of the plants researches emphasize the isolation of secondary metabolites and the metal analysis is neglected. Inthis study, aqueous and ethanolic extracts and the intact plant of Alternanthera maritima (aerial parts and roots) andBlutaparon portulacoides (aerial parts and roots), species commonly found on the beaches of eastern coast of Brazil(Restinga de Maricá, RJ), were selected for analysis by energy dispersive X-ray fluorescence (EDXRF). With thestandard sample aid, the correlation between the elementary sensitivity and the atomic numbers of the elements wasdetermined. The elements P, K, Ca, Ti, Fe, Ni, As, Zn, Br, Sr, Sn and Sb, supported in membranes, were detected in thetwo analyzed plants, but only the elements in the interval 26 (Fe) ≤ Z ≤ 30 (Zn) were quantified with elementaryconcentration between 8,7 and 895,0 µg.g-1.Keywords: EDXRF, Alternanthera maritima, Blutaparon portulacoides, X-ray spectrometry.File: E03_198.pdf



inac2002VI ENAN

Environmental SciencesDATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANA

A. Gelen, J. Soto, O. Díaz, J. Beltrán, M.J. Simón, E. Herrera, M. Ramírez, J. Gómez, C. Ródenas

Abstract: The study of sedimentation rates and age of marine sediments has been performed through many yearsusing natural and artificial radioactive isotopes. The previously topics have been studied in polluted sediments at theHavana Bay collected in three sampling points. Spectrometric measurements have been carried for determiningconcentration of the isotope radioactive gamma emitters, 210Pb and 226Ra to mainly utilized the Constant InitialConcentration Method (CIC) and the Constant Rate of Supply Method (CRS) Dating Models based upon the unsupported210Pb. The obtained results show values for sedimentation rate ranging from 0.2 up to 1.3 cm.y -1 increasing with timewhich manifest the importance of the achievement of a project of dredging.Keywords: bay, sediments, dating, radioactivity.File: E03_072.pdf

RETENÇÃO DO CRÔMIO(III) EM TROCADOR INORGÂNICO DE FOSFATO DEZIRCÔNIO CRISTALINO MODIFICADO

Helena C. Manosso e Christina A. L. G. O. Forbicini

Abstract: Nowadays, environmental preservation using technologies that do not attack it, generating non-toxic residuesand reduced volumes, has been discussed. Hazardous effluents, containing metals, as chromium, have been pouredin the rivers, degrading the water. In this study, zirconium phosphate (ZrP) has been chosen for the separation ofchromium nitric acid media, analyzed by the radioisotope 51Cr as a tracer. The inorganic ion exchanger was preparedto obtain the crystalline a- type, using silica-gel as support, to avoid column packing, that may occur due to thegranulometry of the exchanger. Modifier agent as hexamethylene tetramine (HMTA) was used to improve the exchangerdistribution on the support, increasing the contact surface and the interlayer distances. The ZrP was used in the H + andNa+ forms. The modifications in the exchanger provided an increase of 27% for 51Cr sorption, related to that one withoutchange. The sorption percentage of Cr(III) was 58,23% using ZrP-Si ion exchanger, and 83,31%, with ZrP-Si-HMTA-Na.Keywords: zirconium phosphate, ion exchange, chromium, inorganic ion exchanger.File: E03_370.pdf

USE OF RADIUM ISOTOPES TO DELINEATE SUBMARINE GROUNDWATER DISCHARGE

FROM DIFFERENT SOURCES AND TO ESTIMATE FLUXES

Willard S. Moore

Abstract: Submarine groundwater discharge (SGD) is being acknowledged as an important flux of materials to estuariesand the coastal ocean Several components of SGD are recognized: (1) fresh water flowing directly from an aquifer tothe estuary or ocean, (2) mixtures of freshwater and seawater cycling through surficial unconfined aquifers, (3) inputsof freshwater-seawater mixtures from deeper semiconfined aquifers. These components may interact and mix beforethey enter the ocean. Ideally we would like to know the total SGD flux and the fraction of this flux attributable to eachof these three components. Naturally-occurring radionuclide tracers, especially the four radium isotopes, offer promisein realizing this goal. In August 2000 a SGD intercomparison experiment was organized on a small embayment on thenortheast Gulf of Mexico to compare estimates of SGD obtained from seepage meters, geochemical tracers, andhydrologic modeling. Ra isotope samples were collected from seepage meters, piezometers, and surface waters. Thetwo long-lived Ra isotopes, 228Ra and 226Ra, provide convincing evidence that there are two sources of SGD to the studyarea: shallow seepage from the surficial aquifer and input from a deeper aquifer. A three endmember mixing model candescribe the Ra distribution in all samples.Keywords: submarine groundwater discharge, radium isotopesFile: E03_410.pdf



inac2002VI ENAN

Environmental SciencesPRELIMINARY STUDIES CONCERNING SGD IN INDIAN COASTAL REGIONS USING 228RADIUM AND 226RADIUM

B. L. K. Somayajulu, V. V. Sarma, S. Nair1 and S. K. Gupta

Abstract: 228Ra and 226Ra were measured along with salinity and nutrients (nitrate, silicate and phosphate) in the coastalseawaters and adjacent ground waters on land in two locations, Visakhapatnam on the east coast and Veraval on thewest coast of India.. Groundwaters are low in Ra isotopes and high in nutrients,(nitrate and silicate) whereas thecoastal seawater is relatively depleted in nutrients. Ra isotopes are high on the east coast and low on the west. In bothregions there is the expected high Ra release in the subterranean estuarine situations where salinities are in the rangeof 1-8.Though limited, the data show the usefulness of Ra isotopes to understand SGD in the selected regions.Keywords: Ra-226, Ra-228, natural radionuclides as tracers, submarine groundwater dischargeFile: E03_906.pdf

COMPARATIVE MEASUREMENTS OF GROWTH RINGS IN TREES USING A MICROSCOPIC METHOD

AND DIGITAL X- RAY DENSITY IMAGES

Mary Lucia da Silva, Klaus Wagener, Rubemar Ferreira

Abstract: As is well-known, the systematic analysis of the annual radial increase in the stem diameter of ring-formingtrees gives quantitative information about varying climatic conditions in the past. These investigations became of highactual interest to verify present climatic changes. The traditional method for measuring ring widths in radially extractedtree samples is by microscopic observation, using an ABBE comparator. For documenting the recent climatic changes,as recorded in the changing sizes of the tree rings, dozens of trees have to be analyzed, and normally with foursamples per each tree. This situation stimulated the interest in modern methods with fast data processing. However, tomake use of them, needs also a fast way of recording the data. For the present purpose, this is the digital X-ray imageshowing the density differences in each ring has, resulting from “early wood” and “ late wood” produced in differentseasons of the year. To check the reliability of this new method, the same samples have also been measured with themicroscopic method. It turned out that there are no systematic differences in the results, thus opening the way for muchfaster tree ring research.Keywords: growth rings, digital image processingFile: E03_157.pdf

INSTRUMENTAL NEUTRON ACTIVATION ANALYSIS AS AN ANALYTICAL TOOL ON SUPPORTING THE

ESTABLISHMENT OF GUIDELINES AND DATA BASIS FOR WORKER’S HEALTH AWARENESS PROGRAM

Maria Ângela de B. C. Menezes, Elene C. P. Maia, Claudia Albinati

Abstract: This investigation project was the first action in order to assess the elemental concentration level in a galvanisingindustry. Besides the Cr, one of the most important elements not considered essential for human beings in terms ofhealth hazards and one of the most studied elements in this kind of industry, other elements such as Ag, Au and Sbwere determined. Other elements considered essential as Fe, Cr, Cu, or essential in very small concentration like As,were determined but in high concentrations, playing, maybe, a role as toxic. This first study alerts for the need ofassessing the influence of a long-term exposure to pollutants in the workplace. Scalp hair was used as bioindicator andthe industry environment was evaluated through airborne particulate matter. The elemental concentration results havepointed out a high exposure to pollutants at workplaces and a high elemental concentration in biomonitors suggestedendogenous contamination. The majority of elements determined in airborne particulate matter, 85%, were alsodetermined in hair samples. This result evidences the efficiency of hair as biomonitor and the importance to carry out asimultaneous airborne particulate matter sampling mainly in occupational epidemiological studies. The k 0 InstrumentalNeutron Activation Analysis was applied to all matrixes.Keywords: k0-INAA, biomonitor, hair, galvanising industry, airborne particulate matterFile: E03_083.pdf



inac2002VI ENAN

Environmental SciencesCARACTERIZAÇÃO DOS IMPACTOS AMBIENTAIS DEVIDO A OPERAÇÃO DE VÁRIAS

INSTALAÇÕES NUCLEARES EM UM MESMO SÍTIO

Elena Albeira Guirado Lucinio e José Messias de Oliveira Neto

Abstract: This work deals with the radiological consequences of a site operating fuel enrichment, conversion andreconversion facilities. The consequences are calculated using the methodology recommended by the Commission ofthe European Communites (CEC), implemented in the PC-CREAM computer code.The methodology encompasses several linked models which describe the transfer of radionuclides to the environment,the pathways on which people may be exposed to radiation, and the radiological consequences. The models includeeffluent releases to the atmosphere and waterways, calcule the equivalent dose for each irradiated organ and estimatehealthy effects in a selected population.Keywords: environment impact, routine releases, transport modelling, radiological consequences.File: E03_054.pdf

DATAÇÃO DE SEDIMENTOS DO RESERVATÓRIO DE BARRA BONITA, RIO TIETÊ, SP COM 210Pb :

DISTRIBUIÇÃO HISTÓRICA DE METAIS PESADOS

Raul I. Cazotti, Marcos R. L. do Nascimento, Patrícia F. Silvério e Antonio A. Mozeto

Abstract: This work presents data on 210Pb dating and heavy metal contamination of sediment cores collected from theBarra Bonita reservoir, one of the hydroelectric reservoir built in the Tietê River, SE Brazil about 40 years ago. Agecalculations were done through the CRS (constant rate of supply) and CIC (constant initial concentration) models. It iswell known that dating of lake sediment which are ≥ 100 years old poses no problem as atmospheric 210Pb activitydecreases to almost zero with sediment depth. In this work we present considerations and suggestions towards theapplicability of these two models for reservoir dating as a study-case and for lakes in general with ages ≤ 100 years.The results show a good agreement between the CRS and CIC models. In addition, it was also evaluated the historicalcontamination of heavy metals (total and acid-extractable fraction). Cr, Cu, Ni, Pb and Zn showed an increase inconcentration from the bottom to the top part of the cores. This would probably reflect an increase in land use of theBarra Bonita reservoir watershed for the last 40 years.Keywords: sediments; geochronology; 210Pb; heavy metalsFile: E03_702.pdf

AVALIAÇÃO DA CONTAMINAÇÃO POR METAIS ASSOCIADA AO DESPEJO DE CHORUME NO

RIO CURURUPE-ILHÉUS-BA UTILIZANDO K0-INAA E ICP-MS

Ilza Dalmázio, Arno Heeren de Oliveira, Maria Ângela de B. C. Menezes,Mário R. de S. Silva, Danilo C.Vasconcelos e Balbino L. dos Santos

Abstract: The site of this research is in Ilhéus city located at Bahia state in Brazil. Residues generated by the urbanactivities from this city are collected and disposed at a place without sanitary control called “ Lixão do Cururupe “ closeto Cururupe river. The leachate from the water drainage through the mass of garbage flows into the river. This solutionis rich in organic and inorganic pollutants. There is not any information about the environmental impact caused by thisdump. The objective of this study is to evaluate the contamination caused by metals due to the presence of leachateinto Rio Cururupe. Water, sediment and crustaceans (Ucides cordatus) samples were collected in different pointsconsidering the dump location. Extra samples were also taken in Rio Acuípe 20 km from Rio Cururupe for comparison.After appropriate treatment the samples were analyzed using the technique Instrumental Neutron Activation Analysis(INAA) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The parameters pH, temperature, conductivity,dissolved oxygen (DO) and Biochemistry Oxygen Demand (BOD) from the water samples were also determined.Keywords: leachate, water, sediment, k0-INAA, ICP-MS.File: E03_146.pdf



inac2002VI ENAN

MEDIDA DE TRAÇOS RADIOATIVOS EM ALIMENTOS DE EXPORTAÇÃO DO PARANÁ

Scheibel, Viviane e Appoloni, C. R.

Abstract: This work deals with radioactive traces measurements in foodstuffs produced at the state of Paraná. Themeasured foods were: sulfite treated sugar, tea, mint candy, soy in grain, soy crumb, gross soy oil, gum free soy oiland commercial refined soy oil. Measurements were carried out by gamma-ray spectrometry employing a HPGedetector with 10% of relative efficiency. The energy resolution of the 137Cs 661.62 keV gamma line was 1.75 keV. Thedetector efficiency was measured using a 152Eu certified source and IAEA-375 and IAEA-326 certified referencematerials. Self-attenuation corrections were accomplished with support from literature results. The most importantactivity observed was that of 40K, whose value measured for soy in natura was 745.0 ± 9.1 Bq/kg and for the crumb soy1473 ± 15 Bq/kg. The measured activities of the several analyzed foods were compatible with the values expected fornon contaminated environmental samples, except for soy crumb, whose 40K activity was approximately 50% higherthan the activity observed for the grain in natura.Keywords: soy, foodstuffs, gamma-ray spectrometry, Marinelli beaker, natural radioactivity.File: E03_150.pdf

Environmental Sciences

2002VI ENAN

inac



NUCLEARNUCLEARINSTRUMENTATIONINSTRUMENTATIONEE 0404NUCLEARNUCLEARINSTRUMENTATIONINSTRUMENTATIONEE 0404

NUCLEARNUCLEARINSTRUMENTATIONINSTRUMENTATIONEE 0404



inac2002VI ENAN

Nuclear InstrumentationESTUDO DAS CARACTERÍSTICAS ÓPTICAS E CINTILADORAS DO CRISTAL CsI ATIVADO COM BROMO CRESCIDO

PELA TÉCNICA DE BRIDGMAN

Maria da Conceição Costa Pereira e Margarida Mizue Hamada

Abstract: This paper describes a methodology to grow Cesium Iodide crystal (CsI), doped with Cesium Bromide(CsBr), using the Bridgman technique. To evaluate the crystal obtained [CsI(Br)], systematic measurements of opticaltransmittance and luminescence emission spectrum by gamma radiation were carried out. Transmittancemeasurements of the pure CsI crystal were accomplished to compare with those of the CsI(Br). The luminescenceemission spectra of both crystals, pure CsI and CsI doped with Tl [CsI(Tl)], were also compared. The studies of theoptical properties and the luminescence characteristics of the CsI(Br) crystal give fundamental information to theradiation detector development.Keywords: crystal growth, crystal scintillator, radiation detectors.File: E04_155.pdf

ESTUDO E MONTAGEM DE SISTEMA DE MEDIDAS USANDO RETROESPALHAMENTO DE RADIAÇÃO GAMA

Tufic Madi Filho e Thais Molina Vieira

Abstract: The radioisotopes, electromagnetic radiation emitters, are used in industrial measures, because of theirversatility of application. Selecting radiation of different energies can be obtained radiation that will penetrate justsome centimeters of air or it will penetrate several centimeters in concrete. The use of g rays Compton scattering forconcrete structure inspection, is a technique of non-destructive analysis (NDA). Using this technique, it is possible tomonitor the surface or the interior of the structure for the scattering radiation analysis. One of the great advantages ofthis technique is the possibility to access the structure from only one of its sides, what makes it very practical in theanalysis of materials for which there is impossibility of access to the two sides.In this work a system for measures of backscattering of gamma radiation was set up, for concrete blocks analyzes.For this study an arrangement was projected and built with angular movement containing a shielding for a NaI(Tl)detector, a support for Cs-137 source of approximately 557mCi of activity, and support for the concrete blocks to beanalyzed. The concrete blocks for the tests were prepared with the following characteristics: a) massive, b) with asteel bar and c) with tubes.Keywords: non-destructive analysis, gamma radiation, backscattering.File: E04_181.pdf

INFLUÊNCIA DA ENERGIA DO PADRÃO DE CALIBRAÇÃO NA EFICIÊNCIA DE UM DETECTOR PROPORCIONALPARA CONTAGEM ALFA E BETA TOTAL EM AMOSTRAS DE ÁGUA

Cecilia Martins Santos e Brigitte Roxana Soreanu Pecequilo

Abstract: In this paper the efficiency calibration curves were determinated for a thin-window, low-background andgas-flow proportional counter using calibration standards with different energies and different absorber thicknesses.For the gross alpha counting we used 241Am standard and natural uranium and for the gross beta counting we used90Sr/90Y and 137Cs in residue thickness ranging from 0 to approximately 18 mg/cm2.Counting efficiency for alpha emitters ranged from 0,266 +/- 0,032 for a weightless residue to 0,023 +/- 0,003 in aplanchet containing 15 mg/cm2 of residue for 241Am standard calibration planchets. Counting efficiency values obtainedfor natural uranium standard calibration planchets ranged from 0,322 +/- 0,030 for a weightless residue to 0,023 +/-0,003 in a planchet containing 14,5 mg/cm2 of residue.Counting efficiency for beta emitters ranged from 0,430 +/- 0,036 for a weightless residue to 0,247 +/- 0,020 in aplanchet containing 17 mg/cm2 of residue for 137Cs standard. Counting efficiency values obtained for 90Sr/90Y standardcalibration planchets ranged from 0,489 +/- 0,041 for a weightless residue to 0,323 +/- 0,026 for a residue thicknessof 18 mg/cm2.Key Words: efficiency, calibration, gross alpha, gross beta, proportional detector.File: E04_234.pdf



inac2002VI ENAN

Nuclear InstrumentationDETECÇÃO E ESPECTROMETRIA DE ELÉTRONS DE CONVERSÃO INTERNA E PARTÍCULAS BETA COM DIODOS

DE SI

Alan A. S. Corrêa; Carmen C. Bueno Tobias; J.A. C. Gonçalves e M. D. S. Santos

Abstract: In this paper we describe a light charged-particle spectrometry system based on silicon diodes which,besides their low-cost, bear small leakage current and insignificant electron backscattering factor in the sensitivevolume, leading good energy resolutions. Disencapsulated SFH00206 (Siemens) and S3590-06 (Hamamatsu) diodeswere used.The energy response of these photodiodes for internal conversion electrons was studied under low pressure and atroom temperature by using a 133Ba source. Furthermore, in order to reach the greatest sensitive volume of bothphotodiodes, we also studied their detection efficiency for internal conversion electrons and beta particles as a functionof the polarization voltage.Keywords: Si Photodiodes, Electron Spectrometry, Semiconductors DetectorsFile: E04_440.pdf

NEUTRON FLUX DISTRIBUTION IN AN Am-Be NEUTRON IRRADIATOR

Katherin Shtejer, Guilherme S. Zahn, Ruy B. de Lima, Tufic Madi Filho, Cibele B. Zamboni

Abstract: A neutron irradiator has been assembled at IPEN facilities to perform qualitative-quantitative analysis ofmany materials using thermal and fast neutrons outside the reactor premises. To establish the prototype specifications,the neutron flux distribution was calculated using the Monte Carlo technique. These theoretical predictions thenallow one to discuss the irradiator’s performance.Keywords: neutron, Am-Be, irradiator, MCNP, NAAFile: E04_288.pdf

PHOTOTRANSISTOR: A DETECTOR FOR X-RAY BEAM DOSIMETRY

Luiz Antonio P. dos Santos, Eronides F. da Silva Jr., Clovis A. Hazin and Walter M. Santos

Abstract: We evaluate the feasibility of the diagnostic X-ray beam dose be estimated using phototransistor-typesemiconductor devices. In this radiation range, its detection performance has been compared to that of photodiodesand ionization chambers. X-ray diagnostic results with different phototransistors indicate that they present the bestdetector responses for monitoring, in real-time, the entrance dose and estimating the absorbed dose at the small-size tissue region in human body. Additionally, the phototransistors can also be used for monitoring the radiosurgeryplaning quality.Keywords: phototransistor, X-ray, dosimetry, semiconductor, instrumentation.File: E04_424.pdf

CQL: UM PROGRAMA COMPUTACIONAL PARA AVALIAÇÃO DE INCERTEZAS E CONTROLE DE QUALIDADE EMLABORATÓRIOS METROLÓGICOS

Luiz Antonio P. dos Santos, Renata R. Silveira

Abstract: We present a software, developed at CRCN-CNEN, to evaluate uncertainties and quality control in metrologylaboratories. Although it has been built for ionizing radiation measurements, the program is adaptable to be used inother type of laboratory as the chemical analysis, for instance. The program was developed based on the ISO issue:Guide to the Expression of Uncertainty in Measurement. Its interface was designed using C++ language with databasetools and visual environment to display the two statistical quality control graphs. Beside providing a value for theexpanded uncertainty reporting, it also allows to make a statistical evaluation of uncertainty either by varying the inputinfluence quantities or by choosing some coverage probability.Keywords: radiation, metrology, uncertainty, quality control, software.File: E04_425.pdf



inac2002VI ENAN

Nuclear InstrumentationSISTEMA ELETRÔNICO PARA AUTOMATIZAÇÃO DE MEDIDAS DE CORRENTES PRODUZIDAS POR CÂMARAS

DE IONIZAÇÃO

Franco Brancaccio e Mauro da Silva Dias

Abstract: Ionization Chambers in current mode operation are usually used in Nuclear Metrology in the determinationof radionuclide activity. For this purpose measurements of very low ionization currents, in the range of 10-8 to 10-14 A,are required. Usually, electrometers perform the current integration method under command of signals from anautomation system, in order to reduce the measurement uncertainties. In the present work, an automation system,developed for current integration measurements at the Laboratório de Metrologia Nuclear (LMN) of Instituto dePesquisas Energéticas e Nucleares (IPEN), is described. This automation system is composed by software (graphicinterface and control) and an electronic module connected to a microcomputer, by means of a commercial dataacquisition card CAD12/32 (LYNX Tecnologia Eletrônica Ltda.). Measurements, using an electrometer Keithley 616(Keithley Instruments, Inc) and an ionization chamber IG12/A20 (20th Century Electronics Ltd.), were performed inorder to check the system and for validating the project.Keywords: Activity, Ionization Chamber, Electrometer, Automation.File: E04_634.pdf

UTILIZAÇÃO DE DIODOS DE Si PARA ESPECTROMETRIA ALFA

F. Camargo, Carmen C. Bueno, Josemary A.C. Gonçalves e M.D.S. Santos

Abstract: In this paper we describe studies concerning the origin of the ghost peaks in charged-particle spectra usingsilicon photodiodes SFH00206 (Siemens) and S3590-06 (Hamamatsu). The results obtained in alpha spectrometryshow good energy resolution for both diodes and indicate they are suitable for this kind of measurement. On the otherhand, ghost peaks were only found with the Hamamatsu diode, probably due to the presence of guard rings in itsstructure.Keywords: Si Photodiodes, Alpha-Spectrometry, Semicondutors DetectorsFile: E04_439.pdf

PURIFICAÇÃO POR REFINAMENTO ZONAL PARA PREPARAÇÃODOS DETECTORES SEMICONDUTORES DE PbI

2 E TlBr

Icimone Braga Oliveira, Maria José A. Armelin e Margarida Mizue Hamada

Abstract: PbI2 and TlBr crystals are wide bandgap energy semiconductors composed of high atomic number elements,with high resistivity and density. They have been studied as X and gamma ray room temperature detectors. Theperformance of these radiation detectors is strongly dependent on the crystal purity. This paper describes a purificationmethod for PbI2 and TlBr crystals using the zone refining technique. The effectiveness of the method was evaluatedby neutron activation analysis. A significant decrease of some impurity concentration was observed in function of thepasses number.Keywords: zone refining, lead iodide, thallium bromide, crystals, radiation detectors.File: E04_115.pdf

ANÁLISE DO DANO DE RADIAÇÃO GAMA EM DETECTORES ORGÂNICOS CONTENDO PPO

José Maria Fernandes Neto; Carlos Henrique de Mesquita; Celina Lopes Duarte e Margarida Mizue Hamada

Abstract: The radiation damage effect was evaluated in the PPO-Toluene liquid scintillator solution. Samples containingPPO (1%w/v) diluted in toluene were prepared and irradiated at different doses, using a 60Co irradiator at 6,46kGy.h -1.The radiation effect on the transmittance, light output and chemical modification in the PPO were evaluated before andafter irradiation. The loss in transmittance at 360nm decayed exponentially with the dose. The light output decreasedas the radiation dose increased. The PPO degraded bi-exponentially with the dose, while the PPO degradation products,such as benzoic acid, benzamide and benzyl alcohol, increased with the dose.Keywords: radiation damage, PPO, chemical degradation, irradiation effect.File: E04_456.pdf



inac2002VI ENAN

DETERMINAÇÃO E ANÁLISE QUANTITATIVA DO PERFIL DA INVASÃO DE SÓLIDOS

USANDO TC COM RAIOS X EM ARENITOS CONSOLIDADOS

João Luiz B. Ribeiro, Ricardo T. Lopes, João C. Queiroz Neto e Jaques C. Leite

Abstract: This work show results of an experimental study formation permeability damage caused by invasion ofextraneous and inert solids simulated by calcium carbonates (CaCO3) particles. The use of CaCO3 can cause difficultyof CT analysis of solids in the rock (determination of penetration distance), because of the small difference between thevalues of the attenuation coefficient of CaCO3 and of the rock. But the fourth generation (CT) used in this study wascapable to differentiate the two elements. Laboratory damage tests were performed using two types of sandstonescore: Vila Velha, low permeability (15 mD) and Rio Bonito, high permeability (800 mD). The damage tests were performedwith utilization of SIRF-P, which simulates the conditions find in-situ (petroleum well). The depth of invading CaCO3solids penetration was detected and quantified by consecutive CT scanning of core samples. The preliminary experimentaldata presented show that CT scanning technique could be used in more detailed studies of formation damage phenomenaemploying CaCO3 particles.Keywords: tomography, permeability, damage, petroleum well and drill-inFile: E04_177.pdf

UM SISTEMA PARA MONITORAÇÃO REMOTA DOS NÍVEIS DE RADIAÇÃO NO PRÉDIO DO

REATOR IEA-R1 NO CASO DE UMA EMERGÊNCIA RADIOLÓGICA

José Patrício N. Cárdenas e Christovam Romero Romero Filho

Abstract: Nuclear facilities must measure radiation levels with aim to establish procedures for radiological protectionstaff involving workers and general public. It will be described here the implementation of a computacional system forremote monitoring, in a continuous schedule, of IEA-R1 nuclear research reactor containment building. Results of thisaction are used as a support means in a radiological emergency. The data aquisition system operating in this reactorshows readings concerned to radiation enviroment, such as activity, dosis and concentration in real time and displaysa periodical data bank of this features allowing the surveillance of the operation records anytime, leading to studies andanalysis of radiation levels. Result of this data acquisition are shown by means of computer graphics screens developedfor windows using Visual Basic software.Keywords: radiation, nuclear research reactors, IEA-R1 reactor.File: E04_166.pdf

CARACTERIZAÇÃO DO MONITOR INTELIGENTE DE RADIAÇÃO, MODELO MIR 7026,

PARA MEDIDAS DE EQUIVALENTE DE DOSE AMBIENTE, H*(10)

C. H. S. Grecco, J. J. S. Estrada, D. O. Cardoso, M. M. O. Ramos, I. J. Obadia

Abstract: Radiation monitors are used all over the world to evaluate if places with presence of ionising radiation presentssafe conditions for the working people. Radiation monitors should be tested according to international or nationalstandards in order to be qualified for use.This work describes the methods, procedures and materials used to characterize the Monitor Inteligente de RadiaçãoMIR 7026, developed by the Instituto de Engenharia Nuclear (IEN), as an ambient dose equivalent meter, H*(10),according to the recommendations of ISO and IEC standards. The tests were performed at the Laboratório Nacional deMetrologia das Radiações Ionizantes (LNMRI), at Instituto de Radioproteção e Dosimetria (IRD), and results are inaccordance to the IEC 60846 standard requirements. The overall estimated uncertainly in these tests was 4,5 % to a 95% confidence limit.Keywords: radiation monitors, ambient dose equivalent meter, type testFile: E04_029.pdf

Nuclear Instrumentation



inac2002VI ENAN

Nuclear InstrumentationTOMOGRAFIAS COM DETECTOR DE RAIOS-X SENSÍVEL À POSIÇÃO

Maria Ines S. Souza, Ricardo Tadeu Lopes e Ademarlaudo F. Barbosa

Abstract: The Centro Brasileiro de Pesquisas Físicas (CBPF) is producing Position Sensitive X-ray Detectors (PSD).Such gaseous detectors, permit to measure the number of photons hitting the detector and their positions. Thesefeatures open the possibility to use these detectors in computerized tomography (CT) to perform low cost non-destructiveanalysis, in small objects or samples. To evaluate this feasibility, several tomographic images of objects and standardswere taken at different conditions. Homogeneous samples with known attenuation coefficients were measured to calibratethe system and determine parameters for the quantitative evaluation of the tomographic images. This paper presentsthe results obtained with an 1-dimension PSD filled with Argon (10% CH4) at 2 atm, provided with a 80x2 mm collimatorand a 272mm thick carbon window. An X-ray ampoule of 25 kV maximum anode tension, under 1mA, producing a fan-like beam, was used as radiation source.Keywords: X-ray computed tomography, Position sensitive gas detectorFile: E04_778.pdf

SISTEMA DE MONITORAÇÃO DE REJEITOS RADIOATIVOS HOSPITALARES

Mauro V. Oliveira, Maurício A. C. Aghina e Isaac J. Obadia

Abstract: This work presents the waste monitor model MRH. The monitor supplies an alarm indication when the radiationlevel of the waste in the solid form to be released surpasses a set point value established as maximum radiation levelfor release, with respect to CNEN-NE-6.05 standard. The waste monitor is composed by a radiation monitor coupled toa radiation probe. If necessary, it is possible to increase the monitor’ accuracy by grouping two or more radiationprobes in parallel in the monitor input (this reduces the minimum activity level detected by the monitor). The monitorresponse time is 1 second that makes it possible to detect any radiation that surpasses the set point with no need ofwaiting time for statistical accumulation in the monitor reading. The monitor was installed in the Israelita Albert Einstein’Hospital located at São Paulo city. The tests carried out in the monitor were successfully showing that it can be usedin hospitals, clinics and laboratories in the whole country to monitor the release of radioactive waste in the solid form.Keywords: waste, radiation, monitor, nuclear, medicine.File: E04_028.pdf

DESENVOLVIMENTO DE UMA SONDA DE NÊUTRONS PARA MEDIDA DE UMIDADE DE SOLO UTILIZANDO UMDETECTOR DE 6LiI(Eu)

Iran José Oliveira da Silva, Clemente J.G. Carneiro, Helen Khoury

Abstract: A prototype of soil moisture probe was build using a crystal of 6LiI(Eu) as a thermal neutron detector. Lightpulses are produced by the exoergic nuclear reaction 6Li (n,a) 3He and transmitted through the light guide to aphotomultiplier tube on the soil surface. Liquid light guides have several advantages when compared with bundle ofglass fibers. First, liquid guides do not suffer from packing fraction losses spaces between fibers that cause reducedcoupling efficiency. Second, repeated handling of liquid light guides does not result in the breakage typical of glassbundles, which reduces efficiency over time. Third, liquid guides have excellent UV transmission properties with a cutoff the near infrared spectrum yielding an optimum transmission for visible applications. The major advantage of thisprototype is the elimination of the electromagnetic interference inside of the soil. Tests were carried out aiming theimprovement of electronic and technical viability aspects of neutrons probes. The soil moisture probe calibration curvewas carried out in a drum of 60 cm diameter and 42 cm height. This drum was completely filled with an air dry soil.Counts in the center of the drum with the dry and saturated soils make possible to obtain the curves of the soil watercontent versus the normalized counts for two thermal neutron detectors. The medium value of the counts, the standarddeviation and the number of counts were obtained for 6LiI(Eu) and 3He detectors, respectively for water, air dry, andsaturated soil. From those measurements, a linear calibration curve was obtained for each of detectors.Keywords: neutron probe, crystal of 6LiI(Eu), liquid light guide.File: E04_247.pdf



inac2002VI ENAN

Nuclear InstrumentationCONCEPÇÃO INTEGRADA DE SISTEMAS MISTOS HARDWARE/SOFTWARE UTILIZADOS

EM INSTRUMENTAÇÃO NUCLEAR

Ailton F. Dias, Yves Sorel and Mohamed Akil

Abstract: Hardware/software codesign carries out the design of systems composed by a hardware portion, with specificcomponents, and a software portion, with microprocessor based architecture. This paper describes the AlgorithmArchitecture Adequation (AAA) design methodology – originally oriented to programmable multicomponent architectures,its extension to reconfigurable circuits and its application to design and development of nuclear instrumentation systemscomposed by programmable and configurable circuits. AAA methodology uses an unified model to describe algorithm,architecture and implementation, based on graph theory. The great advantage of AAA methodology is the utilization ofa same model from the specification to the implementation of hardware/software systems, reducing the complexity anddesign time.Keywords: nuclear instrumentation, design methodology, hardware/software codesignFile: E04_766.pdf

MEDIDA DA CAPTAÇÃO DE IODO PELA TIREÓIDE:

ANÁLISE COMPARATIVA ENTRE SISTEMA GAMA-CÂMARA COM COLIMADOR “PINHOLE” E SISTEMA 13S002

Carlos Borges da Silva, Rossana Corbo R. de Mello, Rudnei Karam Morales e Ana Maria. O. Rebelo

Abstract: The thyroid uptake measurements are common in medical uses and are considered a direct and precise formof diagnostic, however, different results have been observed as measurements of thyroid uptake are taken usingdistinct equipment. This study attempts to find the cause of the differences between a thyroid uptake probe and agamma camera. These discrepancies can be associated to the different patients samples, equipment’s problems oroperator procedures errors. This work presents the results of comparative uptake measurements performed in a neckphantom and a 4-hour thyroid uptake study in 40 patients, using a Gamma Camera Ohio Nuclear model Sigma 410with a pinhole collimator and Nuclear Medicine System model 13S002, developed by Instituto de Engenharia Nuclear.The results observed show that in spite of non satisfactory results commented in literature, both the System 13S002and System Gamma Camera Ohio can be used in uptake thyroid diagnostic with statistical confidence degree of 99 %.Keywords: thyroid, radioiodine uptake, nuclear medicine, diagnostic, instrumentation.File: E04_040.pdf

A POSITION SENSITIVE GAS DETECTOR FOR TOMOGRAPHY WITH THERMAL NEUTRONS

Maria Ines S. Souza, Ricardo T. Lopes, Ademarlaudo F. Barbosa, Gevaldo L. de Almeida, Rosanne C. Furieri

Abstract: A position sensitive gas detector originally designed for X-ray has been modified to detect thermal neutronsaddressing its utilization in tomography. This work describes the modifications done for this purpose, including theincorporation of neutron-to-charged particle converter materials, and the measurements carried out to evaluate thedetector performance for each of them. The first converter studied was a natural gadolinium foil placed close to thedetector window, producing an internal conversion electron from the neutron gadolinium interaction, which causes anionization in the argon-methane filling gas. Another converter studied was high-enriched 3He, replacing both thegadolinium foil and the argon-methane gas. 3He fulfills the main requirements for thermal neutron detection such ashigh absorption cross section - 5330 barns - low efficiency for gamma-ray conversion and a good charge amplificationfactor. The 3He(n,p)3H reaction produces a 573 keV-proton and a 191 keV-tritium which are emitted practically intoopposite directions, since the neutron itself, due to its very low energy (0.025eV) doesn’t contribute significantly to themomentum balance. Tomographic systems for thermal neutrons incorporating the developed detector, present someadvantages with regard to the earlier 1 st generation equipment, such as a better resolution and a reduction in the imageacquiring time.Keywords: neutron tomography, position sensitive detector, thermal neutron detectorFile: E04_301.pdf



inac2002VI ENAN

Nuclear InstrumentationPRIMARY STANDARDIZATION OF 153Sm RADIOACTIVE SOLUTION

Marina F. Koskinas, Wilson O. Lavras and Mauro S. Dias

Abstract: The procedure followed by the Laboratório de Metrologia Nuclear (LMN) at the IPEN, in São Paulo, for thestandardisation of 153Sm is described. This radionuclide is part of the LMN programme for the standardisation of importantradionuclides used in nuclear medicine. The activity measurement was carried out in a 4 π (PC)β−γ coincidence systemconsisting of a proportional counter, coupled to a pair of 3” x 3” NaI(Tl) crystals. This radionuclide was obtained bymeans of the 152Sm (n,γ) 153Sm reaction in a thermal neutron flux at the IPEN 2 MW research reactor. The solutionactivity was determined by the extrapolation technique, using external absorbers over and under the 153Sm sources.The events were registered using a Time to Amplitude Converter (TAC) associated with a Multichannel Analyser.Keywords: samarium 153, coincidence method, standardization.File: E04_483.pdf

SISTEMA DE AQUISIÇÃO DE DADOS DO REATOR IEA-R1

Paulo Roberto Bueno Monteiro e Iraci Martinez Pereira Gonçalves

Abstract: This work describes the nuclear research reactor IEA-R1 data acquisition system (DAS) and the modificationsperformed in order to improve the data collection performance during experiments. This system, originally designed forthe operation data collection, was also being used for data collection in experiments. As the original DAS humanmachine interface was not designed for experiments, the acquired data had to be modified before utilization. For thisreason, it was necessary to adapt the original DAS for matching its use in experiments. With this adaptation, the originalDAS was divided in two parts: DAS for reactor operation and DAS for experiments.The DAS data have been used for the development of a monitoring and fault detection computational program. Whenfinish, this program will improve safety and reliability of the IEA-R1 reactor operation.Keywords: data acquisition system, GMDH, IEA-R1 reactorFile: E04_135.pdf

APLICAÇÕES DA TOMOGRAFIA COMPUTADORIZADA DE RAIOS-X NA RECUPERAÇÃO DE PETRÓLEO

E. F. Campos e R. T. Lopes

Abstract: The X-ray Computerized Tomography (CT), as well as others imaging systems, has been widely applied in oilrecovery research to the nondestructive visualization of internal rock features. The images are now being used ordinarilyto investigate oilfield cores to select samples for special analysis. Heterogeneities and fractures in samples are easilyidentified, minimizing experimental errors and leading to the best reservoir performance predictions. Studies havebeen developed in the area of petrophysics to provide information about porosity, fluid saturations and permeability, inorder to improve and support reservoir modeling. For drilling operation, the selection of fluids should be guaranteed bycareful evaluation. Equipments specially constructed to simulate reservoir conditions in laboratory can reproduce fluiddisplacement, which is monitored by CT imaging. This paper presents the applications of CT scanning in studiesdeveloped at the Research and Development Center of Petrobras.Keywords: computed tomography, X-ray, oilfield core, porosity, fluid saturation.File: E04_130.pdf

ESPECTRÔMETRO DE ENERGIA PORTÁTIL UTILIZANDO DETECTOR DE CsI(Tl) COM FOTODIODO

F.E da Costa, M.C.C Pereira e M.M. Hamada

Abstract: An energy spectrometer from 150keV to 1300keV with 256 channels was developed , using a PIN photodiodewith CsI(Tl) crystal as detector. The equipment must be used with a computer; the best option being a Lap Top or NoteBook for constituting a portable spectrometer. The parallel port is used to access the computer, therefore no additionalinterface is necessary. The monocanal technology controlled by computer is used to simplify the electronic circuits.Keywords: photodiode, CsI(Tl), spectrometerFile: E04_172.pdf



inac2002VI ENAN

UTILIZAÇÃO DE CINTILADORES PLÁSTICOS EM SISTEMAS DE DETECÇÃO SENSÍVEIS À POSIÇÃO

Marcelo Bernardes Garcia, Adalberto José Soares, Benedito Dias Baptista F o

Abstract: This paper shows the viability of using a plastic scintillator detector to determine the one dimension positionof a radioactive source. The experiments were performed using collimated 99mTc sources of several activities suppliedby the Centro de Radiofarmácia (from IPEN), and a 15 cm long plastic scintillator with diameter 5,08 cm, produced bythe Centro de Tecnologia das Radiações (also from IPEN). The spectrum was obtained using the Genie 2000 software,and the results processed using a neural network specially developed for the proposed application. The final resultsdemonstrate the viability of the proposed application.Keywords: plastic scintillator, radiation detection, neural networksFile: E04_747.pdf

DATA ACQUISITION SYSTEM FOR RESISTIVE CATHODE DETECTORS

T.P. Peixoto, P.R. Pascholati, V.R. Vanin, J.A.C. Gonçalves, C.C. Bueno

Abstract: The aim of this work is to present the development of a data acquisition system designed to aid the study ofphysical phenomena in metallic detectors with resistive cathode. Since the behavior of such detectors consists basicallyof a gain variation with time, a data acquisition and visualization program was developed that allows users to observein real-time the temporal variation of the energy spectrum. A Linux kernel device driver responsible for I/O control anddata timing was also developed for the project.Keywords: nuclear instrumentation, data acquisition, resistive detectorsFile: E04_292.pdf

SISTEMA DE ANÁLISE DIMENSIONAL PARA ENSAIOS DE ELEMENTOS COMBUSTÍVEIS EM FORMA DE PLACASEM CÉLULAS QUENTES

Orozimbo J. Carneiro, Aimoré Dutra Neto, Tarcísio P. R. Campos, Ailton F. Dias

Abstract: This paper describes a system for visual and dimensional analysis of compact-core reactors fuel elements inplate format. The system, composed of a co-ordinated x, y, z computerized table, has to be operative inside of a hot cellfor the visual inspection and dimensional measurements of the post irradiated fuel elements. The control method of thex, y, z table axes, the data acquisition and the process control technique using computer, are described. Experimentaldata handling and the expected future of the project are presented and commented. This work expand previousinvestigations on a dimensional analysis system carried out by Brazilian Navy Technological Center in São Paulo(CTMSP).Keywords: fuel elements in plate format, dimensional measurements, post irradiated fuel elements analysis.File: E04_497.pdf

SISTEMA COMPACTO DE INSPEÇÃO DE EQUIPAMENTOS E MATERIAIS UTILIZANDO FONTE DE RADIAÇÃOGAMA: UM ESTUDO SIMULADO

Maximiniano Antônio G. Gouveia , Ricardo T. Lopes, Edgar Francisco O. de Jesus e Delson Braz

Abstract: This work presents the development of a compact system inspection of materials based on Compton ScatteringTechnique using a simulation of Monte Carlo. The study was performed using a simulation of a CS pattern system, witha Cesium-137 source with activity of 7.4 x 1010 Bq (2Ci) and two 2” NaI (Tl) scintillation detectors placed in such a waythat it was possible to obtain scattering angles around the 90 degrees. The samples simulated were segments originalpipes where the petrol draining occurs. On the inside walls of the samples were deposited, together to the petrol, thecharacteristic materials that occurs to simulate draining conditions. The simulated study showing the capacity of thesystem in the characterization of materials.Keywords: monte carlo simulation, nondestructive test, compton scattering.File: E04_112.pdf




inac2002VI ENAN

VALIDATION PROCEDURE FOR THE FABRICATION SEQUENCE OF SELF-POWERED NEUTRON DETECTORSFOR NPP DEVELOPED BY CNEA

Marcelo Miller, Abraham Banchik, Daniel Bianchi, Alejandra Flores,Adolfo Marajofsky, Lidia Pérez and Manuel Sabio

Abstract: A new fabrication technology of self powered neutron detectors (SPND) was developed by CNEA and a set ofthese detectors was fabricated and supplied to Atucha I Nuclear Power Plant for in-core neutron flux mapping. Thevalidation procedure of the fabrication technology was based in the manufacturing and evaluation of a “SPND prototype”and a “SPND simile”, equivalent to the prototype but without the neutron sensitive material. The SPNDs were obtainedfrom cold worked and thermal treated composite bars. An Inconel 600 external tube, an Inconel 600 central wire andMgO pellets between them as isolation, composed the composite bars. In the case of the prototype, the sensitivematerial was placed around the center of the wire. Samples were taken from the “SPND simile” after each fabricationstep to evaluate the evolution of dimensions and metallurgical properties during the plastic deformation sequence. Inthe finished prototype, the electrical properties, dimensions and neutron response were controlled and in samples fromthe vanadium zone, the vanadium-Inconel interface was studied. Radiographic inspections were also made along thefabrication sequence at the vanadium position. In summary, the fabrication sequence was appropriated to obtain detectorswith adequate neutron, electrical and metallurgical response.Keywords: SPND, neutron detector, neutron fluxFile: E04_719.pdf

CALIBRAÇÃO DE MEDIDORES DE KV COM A GRANDEZA POTENCIAL DE PICO PRÁTICO (IEC 1676)

Paulo H. B. Becker, Marcos A. L. Peres, Jaime L. Ludwig e Carlos C. Chernicharo

Abstract: The IEC 1676 standard introduces a new quantity for the measurements of the high voltages applied to the Xray tubes used for diagnosis, the ‘Practical Peak Voltage” (PPV). In order to start the introduction of this new quantity inBrazil the National Laboratory for Metrology of Ionizing Radiation has developed a procedure for calibrating measuringinstruments in this quantity. This procedure is based in the same set up used for the calibration of the conventional kVp,which consists in a high voltage divider (Dynalyser III from Radcal Corporation), a fast analogue to digital conversionboard and a data acquisition software. In order to evaluate this procedure a commercial kVp measure instrument thatis able to measure PPV (Universal Diavolt from PTW) was calibrated and the results compared. This work presents asummary of the procedure developed and the results obtained with the comparison.Keywords: kVp, practical peak voltage, IEC 1676File: E04_695.pdf

CONSTRUÇÃO DE FANTOMAS ATRAVÉS DE LITOGRAFIA PARA ANÁLISE DE SISTEMAS MICRO-RADIOGRÁFICOS

Henrique de Souza Rocha; Ricardo Tadeu Lopes; Pedro Ivo M. T. Macedo

Abstract: In this work it was analyzed the viability of the use of a standard phantom, manufactured by the lithographprocess, for obtaining the space resolution of a microradiographic system. The project predicted the construction ofthree types of phantoms, one for obtaining the function of modulation transfer (MTF) in systems with resolutions between10 and 60 µm and other two for the direct reading of the space resolution, in systems with resolution between 10 and100 µm and between 100 and 400 µm. Despite of the results have been obtained from preliminary samples of the builtphantoms, it was possible to find good results in relation to the space resolution. Using a reference system formed bya conventional microfocused X-rays tube with a CCD detector, was possible to match a space resolution of 15 µm in20% of modulation in a system with a estimated resolution of 12,5 µm.Keywords: microradiography, microfabrication, lithography, spatial resolution, NDT.File: E04_162.pdf




inac2002VI ENAN

VIABILITY STUDY FOR THE INSTALLATION OF A SANS BEAM-LINE AT IPEN/CNEN-SP

José Mestnik Filho

Abstract: It is presented a study of the performance parameters of a hypothetical small angle neutron scattering (SANS)spectrometer at the IEA-R1 reactor. It is shown that the range of useful momentum transfer Q for a traditional SANSspectrometer would be 0.01 to 0.5 Å-1 with a resolution ∆Q/Q of 70% at Qmin. Possibilities to improve the resolution andto decrease the lower limit of momentum transfer are discussed.Keywords: neutron scattering, SANSFile: E04_694.pdf


2002VI ENAN

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RADIOACTIVERADIOACTIVEWASTEWASTEMANAGEMENTMANAGEMENTEE 0505RADIOACTIVERADIOACTIVEWASTEWASTEMANAGEMENTMANAGEMENTEE 0505

RADIOACTIVERADIOACTIVEWASTEWASTEMANAGEMENTMANAGEMENTEE 0505



inac2002VI ENAN

Radioactive Waste ManagementPROPOSTA DE METODOLOGIA PARA A SELEÇÃO DE MATRIZES PARA A ESTABILIZAÇÃO DE RESÍDUOS

PERIGOSOS

Eliane Magalhães Pereira da Silva, Elizabete Jordão and Vanderley de Vasconcelos

Abstract: The issues of environmental pollution by solid waste arised with the onset of the industrial era. Coping withthese issues has been even worsen due to the lack of consciousness and planning for a sound waste management.In addition, most of the companies have found it difficult to keep themselves competitive in a global economy due tothe lack of information and by not having access to waste management new technologies. On the other hand,solidification/stabilization technologies are usual practices in the nuclear industry. The aim of this paper is to presenta proposal to the development of a methodology, for selection of immobilization binders for hazardous waste, basedon the available technologies in the nuclear industry.Keywords: waste management, hazardous waste, stabilization/solidification processes.File: E05_348.pdf

ADIÇÃO DE MICROSSÍLICA EM CIMENTO PORTLAND, PARA IMOBILIZAÇÃO DE CARVÃO ATIVO PROVENIENTEDO REATOR DE PESQUISA DO IPEN, IEA R-1m

Vera Lúcia Keiko Isiki e Júlio Takehiro Marumo

Abstract: The charcoal is used to pretreat the cooling water of the research reactor that concentrates radionuclidesafter a period of time. The Radioactive Waste Department of IPEN (Instituto de Pesquisas Energéticas e Nucleares)maintains, at its interim storage, spent charcoal, contaminated with Cs-137 and Co-60, that must be convenientlytreated due to its high activity level and the corrosion of the drums where it is packed. This paper evaluated thebehavior of cement matrices containing charcoal in the presence of silica fume. The experiments were performedusing cement pastes and charcoal, evaluated by compressive strength and setting time assays.Keywords: cement, immobilization, activated charcoal, silica fume, radioactive waste.File: E05_366.pdf

IMOBILIZAÇÃO DE RESINAS DE TROCA-IÔNICA EM BETUME

Marcia Flavia Righi Guzella e Tânia Valéria da Silva

Abstract: This work presents the results of a research carried out at CDTN/CNEN (Nuclear Technology DevelopmentCenter) to incorporate spent ion exchange resin into national bitumen. The campaigns were performed at abituminization pilot plant in CDTN. The waste products properties were evaluated according national and internationalstandards to determine the softening point, penetration, flash point, water content, the thermodifferential analysis andhomogeneity. These properties are important to evaluate the waste products in order to allow for the system to beoperated safely. The so obtained products should meet the standard safety criteria for disposal.Keywords: bituminization, ion-exchange resin imobilization, radioactive waste treatment.File: E05_429.pdf

ESTADO ATUAL DO SISTEMA DE INFORMAÇÕES SOBRE FONTES SELADAS FORA DE USO NO CDTN

Fábio Silva e Luiz Carlos Alves Reis

Abstract: As part of institutional efforts of Brazilian Commission of Nuclear Energy, the Nuclear Technology DevelopmentCentre has been receiving a lot of sources without use coming from industries, hospitals and universities. A databaseof radioactive sources called “Sistema de Informações Sobre Fontes Seladas Fora de Uso - SISFONTE”, wasimplemented in the year 2000 and it is being continuously developed at the Waste Division of CDTN. The mainobjective is to keep all information about radioactive sources registered and updated, in order to reuse the disusedsealed sources and to keep the radioactive inventory.Keywords: sources database, waste management, spent sources, disused sources, sealed sources.File: E05_478.pdf



inac2002VI ENAN

Radioactive Waste ManagementDESENVOLVIMENTO DE UMA METODOLOGIA PARA CARACTERIZAÇÃO ISOTÓPICA DE TAMBORES DE REJEITO

RADIOATIVO UTILIZANDO-SE TÉCNICAS DE SIMULAÇÃO MATEMÁTICA

Ademar José Potiens Júnior, Goro Hiromoto

Abstract: The safety management of radioactive waste is one of the most important aspects of the nuclear technologydevelopment. The exact characterization of these radioactive waste is not an easy task, considering its isotopecomposition diversity, heterogeneous spatial distribution and mass density. One of these difficulties is to obtain thedetector counting efficiency, since the infinite possible combination of activity and radioisotope position in wastedrum becomes impracticable the preparation of the calibration standards. In this communication a methodology forradioisotope quantification in a 200 L waste barrel is presented, using Monte Carlo simulation for data generationand Artificial Neural Network for data treatment.Keywords: Radioactive Waste, Drum Characterization, Monte Carlo Method, Artificial Neural NetworkFile: E05_706.pdf

ESTUDO DA RECUPERAÇÃO DO MATERIAL NÃO REAGIDO NO REATOR DE CHAMA (CINZAS DE UF6) PARA

REUTILIZAÇÃO NO CICLO DO COMBUSTÍVEL NUCLEAR

Hélio F. R. Ferreto, Edgar F. da Cunha, Eleosmar Gasparin

Abstract: From 1983 to 1995 the Projeto Conversão (PROCON) at IPEN/CNEN-SP obtained, as byproduct, 14.000 kgof “UF6 ashes” from UF6 production unit. These ashes are UF4 that did not react in a flame reactor. During the storageof these ashes, HF gas was formed by reaction of F 2 and humidity. This gas is very aggressive and it can be dangerousfor the operators and it turns the packages fragile. The present work shows a thermal process to recover this materialto obtain a safety product to be handled and storaged without any risks for the operators and damages to packages andto contribute for the conservation of natural resources and reduction of environmental impact.Keywords: UF6 ash, flame reactor, UF6 byproduct, storage.File: E05_107.pdf

INCORPORAÇÃO DE ÓLEO CONTAMINADO COM TRÍTIO EM CIMENTO, UTILIZANDO UM POLÍMERO ABSORVENTE

Marcos Maciel de Goes, Júlio Takehiro Marumo e Vera Lúcia Keiko Isiki

Abstract: This paper describes a study carried out to determine whether a absorbent polymer can be used to pretreattritiated vacuum pump oils, before solidification in cement matrix. The experiments were conducted with samplesprepared with simulated waste, absorbent polymer, portland cement and silica fume, in some cases, and evaluating theperformance according to compressive strength, workability and bleeding. Despite the low quantity of oil incorporated,this study showed that it can be a feasible method, since it provided a stable product.Keywords: solidification, absorbent polymer, tritiated oil, cement, silica fume, radiactive waste.File: E05_360.pdf

GESTÃO DE FONTES RADIOATIVAS SELADAS DESCARTADAS

Roberto Vicente, Gian-Maria Sordi e Goro Hiromoto

Abstract: The number of sealed radiation sources used in industrial, medical, and research applications in Brazil amountsto hundreds of thousands. Spent or disused sources are being collected and stored as radioactive waste in nuclearresearch centers, awaiting for a decision on their final disposal. However, a safe and economically feasible disposaltechnology is unavailable. The aim of this paper is to report the development of the concept of a repository and atreatment process that will allow the final disposal of all the spent sealed sources in a safe, dedicated, and exclusiverepository. The concept of the disposal system is a deep borehole in stable geologic media, meeting the radiologicalperformance standards and safety requirements set by international organizations.Keywords: geological repository, spent radiation sources, waste disposalFile: E05_709.pdf



inac2002VI ENAN

Radioactive Waste ManagementTRATAMENTO QUÍMICO DE REJEITOS LÍQUIDOS DE BAIXA ATIVIDADE – CASO EXEMPLO

Thiago Pavan Barcia Fonseca, Carlos Antônio Morais, Tânia Valéria da Silva e Eliane Magalhães Pereira da Silva

Abstract: This paper addresses one of the steps for the management of radioactive waste at CDTN/CNEN – volumereduction of liquid waste by chemical treatment. The object of the chemical treatment is to concentrate radionuclidesinto a small bulk of insoluble sludge, reducing the activity level of the large volume of low-activity liquid wastes sufficientlyto permit their dispersal to the environment. At CDTN several projects are being carried out in the fields of fuel cycle andnuclear applications, generating, among others, low-level aqueous liquid wastes. These wastes are segregated at theirsources, and characterized through a series of radiochemical and chemical analysis. According to their characteristics,laboratory assays are set up in order to define the best methodology to be used to decontaminate the wastes andtherefore reduce the volume to be cemented. The definition of treatment methodologies for CDTN liquid wastes indifferent compositions is presented as a case study.Keywords: waste management, radioactive waste, low-level aqueous liquid waste, chemical treatment.File: E05_620.pdf

TRATAMENTO POR CIMENTAÇÃO DE LÍQUIDOS DE CINTILAÇÃO

Clédola Cássia Oliveira de Tello e Maria Judite Afonso Haucz

Abstract: This paper presents the research done to treat organic wastes, especially scintillation liquids, using cementation,so that the solidified products can be handled, transported and stored without risks to the workers, public and environment.This research is addressed to the generators of small volumes of this type of the waste. Due to this aspect a procedureis being developed using simple equipment and material that can be obtained anywhere, but with the guarantee thatthe waste form reaches the basic quality requirements for the following steps. In the laboratory experiments waspossible to incorporated up to 19% by weight of waste and the products presented compressive strength resistancehigher than 10 MPa.Keywords: scintillation, organic wastes, waste treatment, cementation, waste productsFile: E05_488.pdf

ESTUDO DA INFLUÊNCIA DOS PARÂMETROS DE PREPARAÇÃO DA MAGNETITA NA EFICIÊNCIA

DE ADSORÇÃO DE METAIS NO TRATAMENTO DE EFLUENTES

Mitiko Yamaura, Luciana Yukie Wada e Eduardo Hauy Junior

Abstract: Ferrites have been used to remove and concentrate heavy metals of aqueous waste. This work describesthe obtaining of the magnetite (Fe3O4) varying the pH, the temperature and the drying time. The performance of magnetitewas evaluated by values of distribution coefficient of Eu3+ from nitric solution. The kinetic reaction, the adsorptionisotherm of Eu3+ and the adsorption capacity of the synthetic magnetite were studied.Keywords: magnetite, europium(III) removal, adsorption isotherm, adsorption capacity, ex situ magnetite.File: E05_339.pdf

REMOÇÃO DE EURÓPIO POR PRECIPITAÇÃO DA FERRITA

Mitiko Yamaura, Tiago Rebello Perin

Abstract: Ferrites are mixed valence iron oxides having a spinel crystalline structure. They have been studied forremoval of metal ions from nuclear waste as well as to separate organic, particulate and biological materials fromaqueous effluent . In this work, experimental investigations of in situ ferrite for europium removal are described. The pHinfluence over range of 7 to 12 and the effect of precipitation of europium hydroxides were studied. The capacity ofadsorption of ferrite was determined.Keywords: ferrite, europium (III) removal, adsorption capacity, in situ ferrite.File: E05_341.pdf



inac2002VI ENAN

RADWASTE STREAMS TREATMENT AND CONDITIONING IN BELGIUM

Michel Detilleux, Jean-Marie Cuchet

Abstract: Nuclear power plants and different fuel cycle facilities forced Belgium to find appropriate solutions for eachstream of generated radwaste, solid or liquid, of low, intermediate or high level activity, alpha contaminated or not.Taking into account the specifity of the waste streams, the paper describes the various treatment / conditioning processeswhich were or are still applied in Belgium, such as supercompaction, incineration, cementation, bituminisation,vitrification,…Keywords: radwaste, treatment, conditioning, process, belgiumFile: E05_252.pdf

CARACTERIZAÇÃO DE ESPUMA POLIMÉRICA PARA USO EM EMBALAGENS PARA

TRANSPORTE DE REJEITOS RADIOATIVOS

Rogério Pimenta Mourão e Miguel Mattar Neto

Abstract: Impact limiters are sacrificial components widely used to protect radioactive waste packages against damagearising from falls, fires and collisions with protruding objects. Several materials have been used as impact limiter filling:wood, expanded cement and polymeric foams. One of the most popular materials among package designers is thepetroleum rigid polyurethane foam, owing to its toughness, workability, low specific weight, low costs and commercialavailability. In Brazil, a new foam was developed using the polymer extracted from the castor-oil plant (Ricinus communis),a renewable source. Besides, no greenhouse gases are used during its manufacture. For a better performance, adetailed knowledge of the foam physical and mechanical properties is essential. A relatively vast amount of data aboutregular polymeric foams can be found in the literature and in several manufacturers’ brochures, but no data has beenpublished so far about the properties of the castor-oil foam. This paper presents the testing program carried out as partof ongoing research program aimed at developing a packaging for the transport of radioactive wastes. The resultsobtained reveal that the castor-oil foam has a mechanical behavior similar to that of regular foams, with good propertyreproducibility and homogeneity.Keywords: testing, packages, polymeric foams, transportation, nuclear applicationsFile: E05_392.pdf

MANAGEMENT OF LOW AND MEDIUM LEVEL RADIOACTIVE WASTE IN

THE UNIVERSITY OF BRAZÍLIA, THE CAPITAL OF BRAZIL

Cíntia M. Dias, Iêda G. Nícoli, Rosangela S. Corrêa e Anthenor C. Ramos

Abstract: Since 1994, Brazilia University (UnB) seeks interacting with Brazilian Commission of Nuclear Energy (CNEN)for a solution to radwaste produced into laboratories. In 1996, 20 interventions had been realized by CNEN. Experiencedon these tasks, Coordination of Radioactive Waste (COREJ) and CNEN located in Brazilia (CNEN-BsB) have beenresponsible for applying Radwaste Programme to Research Institutions (PROGER).Monitoring laboratories and followingup conditions of radiological waste management were steps to implement the program. Primarily forms were appliedwhere the inspector selected only those portions deemed most relevant. As another part of the programme, visits andseminars to teachers and lab technicians were realized between 1997 and 1999. The UnB counts on 13 laboratoriesmanipulating radioactive materials which the more often used are 32P, 33P, 35P 35S, 14C, 3H, 125I ,131I. Also, five equipmentswith solid sources to measurements were registered. Although there were two dedicated places for radwaste storaging,canes and packs with no radioactive labels were found, where several unidentified chemical substances and radionuclideswere mixed. Finally, a provisory deposit was built in UnB besides a formal permanent radioprotection commission. Itwas intended to standardize internal radiological protection and waste management procedures aiming to protect thepublic and environment.Keywords: research institutions, radwaste programme, provisory deposit, CNEN, UnB.File: E05_443.pdf

Radioactive Waste Management



inac2002VI ENAN

RADIOACTIVE WASTE CHARACTERIZATION IN BELGIUM

Serge Vanderperre, Christine Vanhaeverbeek, Koen Mannaerts, Baudouin Centner,Philippe Beguin and Michel Detilleux

Abstract: Radioactive waste producers are nowadays increasingly required to characterize the nuclide specific activitycontent of the waste generated by their facilities, to demonstrate full compliance with the waste acceptance criteriafor interim storage and/or final disposal. In case of surface or near-surface disposal, the long-lived critical radionuclidesare the radiological source term for the long-term risk assessment of the repository. Most of them are difficult tomeasure and require sophisticated, time consuming and expensive analytical techniques, difficult to be implementedby the producer on a routine basis for normal radwaste productionThe LLWAA code developed by Tractebel enablesto predict activity inventory for the various types of waste according to actual design characteristics and operatingconditions of a nuclear power plant. This code is coupled to the DECL software that allows, based on simple wastepackage radiological measurements, to determine their critical isotopes inventory content. LLWAA and DECL areimplemented as an integrated software package at Doel and Tihange NPP sites to generate the consignment formfor each waste package in complete agreement with the requirements set by the Belgian Agency for RadioactiveMaterials ONDRAF/NIRAS.LLWAA code was extended for the determination of critical nuclides activities in ashesproduced by LLW incineration (LLWAA-ASHES) and for the assessment of the critical nuclides activities deposited onequipment of the nuclear systems of a NPP (LLWAA-DECOM). This latter has been used for the decommissioningcost estimates of the Belgian NPPs.Keywords: radwaste, characterization, PWR, decommissioning, incineration.File: E05_244.pdf

COMPACTAÇÃO DE REJEITOS RADIOATIVOS SÓLIDOS

Paulo de Oliveira Santos

Abstract: Some activities carried out at the laboratories of the CDTN generate compactable radioactive solid wastesmainly made up of paper, gloves, cloth, rag and small pieces of discharged equipments that need treatment beforefinal. . and hospitals. The Centre of the Development of Nuclear Technology – CDNT has an installation for in-drumcompactation, achieving a reduction factor about 7:1. The data about the wastes put in each drum are sent to theDate Base of the Waste Technology Service. After compactation the drum is monitored, labeled and sent to theinterim storage of the CDNT.Keywords: waste, radioactive, pressing, compacting, drumFile: E05_436.pdf

VANTAGENS DA ETAPA DE SEGREGAÇÃO NO GERENCIAMENTO DOS REJEITOS RADIOATIVOS

Regina Bitelli Medeiros e Maria Fernanda S. S. Mattos

Abstract: Due to the increasing use of radioactive materials in the research activities, the waste management isessential to guarantee personnel safety and the preservation of the environmental quality. It is possible to determinethe date of discharge in the public sewage treatment system based on the estimated activity of the radioactive wasteand on the solid waste discharge limit of 74 Bq/g as recommended by the radiation protection rules. The goal of thiswork is to demonstrate the advantages of the waste segregation by specific activity as a means of minimization of thestored waste. The residual specific activity and volume were estimated in the several steps of assays using 32P and3H. The storage times were calculated and compared with the estimated time considering the residual activity as 2% of the total activity used in the experiment. The segregation by steps of the assay allowed for the reduction of thewaste volume and stored time. In the assays with 3H only 20 % of the total waste generated was stored and in theassays with 32P it was possible to discharge 90 % of the radioactive waste after 38 days.Keywords: radioactive waste, waste management, solid wasteFile: E05_453.pdf




inac2002VI ENAN

DECOMPOSIÇÃO TÉRMICA DE RESÍDUOS ORGÂNICOS CONTENDO RADIONUCLÍDEOS

POR MEIO DE OXIDAÇÃO EM SAIS FUNDIDOS

Paulo Ernesto O. Lainetti, Alcídio Abrão

Abstract: During the last decades, IPEN has performed different research developments to dominate the nuclear fuelcycle. The production processes, the development activities and the physical-chemical characterization methodshave generated some effluents in the form of aqueous solutions containing radioactive elements that could bediscarded after radioactive decay. Nevertheless, in spite of the possibility of waste discharging from a radiologicalpoint of view, as consequence of the low activity , some wastes containing organic solvents cannot be discarded inthe sewerage system due to legislation restrictions. Some wastes, with high potential risk, such as pyridine or toluene,should be destructed. However, their destruction in incinerators is not permitted since the presence of radioactiveelements. An alternative process would be the oxidative decomposition in molten salts that is not consideredincineration, because there is no flame. This work describes the developments conducted in IPEN, in bench scale,to perform tests of thermal decomposition of different hazardous wastes.Keywords: molten salt, organic wastes, decompositionFile: E05_779.pdf

ANGRA 2 – QUALIFICAÇÃO DO PRODUTO DE REJEITO BETUMINIZADO

Lauro José de Barros Monte, Nelson J. P. Oliva Gomes, Vera Lúcia Branco Barreto,Marcia Flavia Righi Guzella e Tânia Valéria da Silva

Abstract: In Angra Nuclear Power Plant, Unit 2, the concentrates from the liquid waste processing system and spentresins from the reactor coolant purification system, represent the low and intermediate level radioactive waste to beincorporate into a bitumen matrix. In order to attempt the Process Control Program aimed to obtain a waste productqualified to an intermediate and a final store, a program to qualify a Brazilian supplier bitumen manufacture, simulatedtests in pilot scale in Centro de Desenvolvimento da Tecnologia Nuclear – CDTN and tests in industrial scale, inAngra 2 during the commissioning and licensing phase was performed. The paper presents the team experiencegained since the bitumen selection up to the bitumen characterization simulated waste product.Keywords: radioactive waste, bituminization, waste product characterization.File: E05_686.pdf

ESTUDO PRELIMINAR DA LIXIVIAÇÃO DAS PILHAS DE MINÉRIO EXAURIDO DA UNIDADE DECONCENTRAÇÃO DE URÂNIO – URA/INB, COM VISTA À AVALIAÇÃO DE IMPACTO AMBIENTAL

Edijane Guimarães da Conceição, Mário César B. de Souza, Mariza R. Franklin e Horst M. Fernandes

Abstract: The implementation of waste management practices, associated with mining and milling activities of nuclearores, represent a great challenge for operators and regulatory authorities. In the case of uranium mining activities, thepresence of long-lived radionuclides associated with the wastes possess potential risks regarding human exposureto these radionuclides, by means of different exposure pathways for long time periods. In the particular case of leachedores and waste-rock piles, geochemical processes can lead to the release of relevant amounts of pollutants into theenvironment. The objective of this work was to investigate the potential mobilization of radionuclides from the leached-ore/waste-rock piles of the Uranium Concentration Facility (URA) operated by the Industrias Nucleares do Brasil(INB) located at the municipality of Caetité, Brazil. A conservative approach (leaching of the material with HCl 0.5Msolution) indicated that 31% of the total amount of uranium present in the deposits would be potentially available to beremoved by natural processes. However, considering a more realistic approach (leaching of the material with distilledwater), only 0.1% of the total uranium content would have the potential of be transported into the environment. Thesepreliminary results show that no major environmental impacts are expected to take place at the site in connection tothese sources.Keywords: heap leaching, uranium mining, geochemical processesFile: E05_403.pdf




inac2002VI ENAN

Radioactive Waste ManagementRADIOACTIVE WASTE MANAGEMENT PROGRAMME IN SPAIN

Alvaro R. Beceiro; Elena Vico

Abstract: In 1984 the Empresa Nacional de Residuos Radiactivos (ENRESA) was set up in order to be responsible forall radioactive waste management activities in the country. ENRESA is a state-owned company, the shareholders ofwhich are CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, formerly (JEN) andSEPI (Sociedad Estatal de Participaciones Industriales), both institutions dependent on the Spanish Government.ENRESA has a broad scope of responsibilities, including not only the management of L/ILW, HLW and spent fuel butalso the decommissioning of nuclear installations, as well as the rehabilitation of uranium mining and milling facilitieswhen required. The policy on radioactive waste management is defined by the Government, and the strategies aredeveloped by ENRESA in accordance with the General Radioactive Waste Management Plan. This Plan is a strategicdocument which must be submitted yearly by ENRESA to the Government, for its approval when the Ministry ofEconomy decided so. The plan, in general terms, contains the main aspects related to waste generation and forecasts,as well as the strategies and technical solutions to be prepared, along with the associated economic and financialaspects. ENRESA’s activities are financed by the waste producers. On the one hand the nucleoelectric sector paysa percentage fee on all the electricity sales, while small producers pay tariffs according to the services provided, bothare approved by the Government. The Fifth General Radioactive Waste Plan, approved by the Government in July1999, is currently in force and contains the strategies for the management of radioactive wastes and decommissioningof nuclear installations in Spain.Keywords: radioactive waste, ENRESA, nuclear installations, management planFile: E05_559.pdf

LOW AND INTERMEDIATE WASTE MANAGEMENT IN SPAIN

Pablo Zuloaga

Abstract: The main objective of this facility is the final disposal of all L&ILW produced in Spain, mainly in the operatingNuclear Power Reactors, in the Nuclear Power Plant under decommissioning by ENRESA, a fuel fabrication plantand institutional producers, as well as those arising from incidents outside the nuclear industry. The disposal conceptconsists of so called disposal units, mainly durable concrete overpacks, placed in concrete vaults. A drain controlsystem exists in inspection galleries constructed beneath the disposal vaults. These vaults are protected from theweather during their operation and sealing by a metallic shelter, which also supports the handling crane.

The facility also include:

- A treatment and conditioning shop, which includes incineration, institutional wastes segregation and conditioning,drum transfer into overpacks, supercompaction, liquid waste collection, and grout preparation and injection.

- A waste form characterisation laboratory with means for non-destructive radiological characterisation and fordestructive test on the waste forms(specimens extractions, unskinning of the drums, mechanical strength, leachingtest on specimens and full size packages) to supports the waste acceptance procedures and the verification ofthe overall quality of the packages.

- A fabrication shop for overpacks construction.

- Auxiliary systems and buildings in support of operation, maintenance and surveillance of the facility.

The paper deals with the design, the operating experience of the facility, the waste packages characterisation andacceptance practises and the reception of the wastes from the generating facilities.Keywords: ENRESA, decommissioning, nuclear power plantFile: E05_579.pdf



inac2002VI ENAN

FUZZY MULTI-OBJECTIVE DECISION MAKING ON A LOW AND INTERMEDIATE LEVEL WASTE REPOSITORYSAFETY ASSESSMENT

Francisco Luiz de Lemos, Ashok Deshpande, e Lamartine Guimarães

Abstract: Low and intermediate waste disposal facilities safety assessment is comprised of several steps from siteselection , construction and operation to post-closure performance assessment. This is a multidisciplinary andcomplex task , and can not be analyzed by one expert only. This high complexity can lead to ambiguity and vaguenessin information and consequently in the decision making process. In order to make the decision process clear andobjective, there is the need to provide the decision makers with a clear and comprehensive picture of the wholeprocess and, at the same time, simple and easily understandable by the public. This paper suggests the developmentof an inference system based on fuzzy decision making methodology. Fuzzy logic tools are specially suited to dealwith ambiguous data by using language expressions. This process would be capable of integrating knowledge fromvarious fields of environmental sciences. It has an advantage of keeping record of reasoning for each intermediatedecision that lead to the final results which makes it more dependable and defensible as well.Keywords: fuzzy logic, decision making, radioactive waste, expert system, mathematical modeling.File: E05_427.pdf


2002VI ENAN

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ISOTOPIC TECHNIQUES INISOTOPIC TECHNIQUES IN

ENVIRONMENTAL ANDENVIRONMENTAL AND

INDUSTRIAL PROCESSESINDUSTRIAL PROCESSESEE 0606ISOTOPIC TECHNIQUES INISOTOPIC TECHNIQUES IN


INDUSTRIAL PROCESSESINDUSTRIAL PROCESSESEE 0606

ISOTOPIC TECHNIQUES INISOTOPIC TECHNIQUES IN


INDUSTRIAL PROCESSESINDUSTRIAL PROCESSESEE 0606



inac2002VI ENAN

Isotopic Techniques in Environmental and Industrial ProcessesDETERMINAÇÃO DE TEMPO DE RESIDÊNCIA MÉDIO -TRM - EM UM DIGESTOR ANAERÓBIO DA ESTAÇÃO DE

TRATAMENTO DE ESGOTOS DE BARUERI COM UTILIZAÇÃO DE TRAÇADOR RADIOATIVO

Luiz Carlos Helou, Pedro Eiti Aoki, Cristiane da Silva Vitoreti,Valdir Cosmos da Silva e Fábio Alceu Akiyama de Moraes

Abstract: Gas production in the Barueri Wastewater Treatment Plant digesters shows lower values than projected. Thisfact conducted to the hypothesis that there could be dead zones caused by homogenization deficiencies. In order toverify this hypothesis a full scale essay was conducted with Iodine - 131 as tracer. A Mutual Cooperation Agreementwas signed between the São Paulo Basic Sanitation Company (SABESP) and the Nuclear and Energetic ResearchInstitute (IPEN) to conduct these essays. The results showed that the active volume was almost 88% of the nominalcapacity.Keywords: radioactive tracer, digestor, anaerobic, hydraulic retention time, dead zoneFile: E06_138.pdf

COMPUTED TOMOGRAPHY TO DETERMINE FATIGUE CRACKING GROWTH PARAMETERS IN ASPHALTICMIXTURES

Braz D. , Lopes R. T. and Motta L. M. G.

Abstract: Distress of asphalt concrete pavement due to repeated bending from traffic loads has been a well recognizedproblem in Brazil. There are three primary causes of cracking, namely fatigue cracking, due to the repetitive nature oftraffic loading, reflection cracking which results from the presence of a defect which may be a crack or joint in otherlayers in the pavement, and low temperature cracking which is caused by a rapid and large decrease in ambienttemperature. If it is assumed that fatigue cracking growth is governed by the conditions at the crack tip, and that thecrack tip conditions can be characterized by the stress intensity factor, then fatigue cracking growth as a function ofstress intensity range ∆K can be determined. Computed tomography technique is used to detect crack evolution inasphaltic mixtures which were submitted to fatigue tests. Fatigue tests under conditions of controlled stress werecarried out using diametral compression equipment and repeat loading. The aim of this work is imaging severalspecimens at different stages of the fatigue tests, i.e., after different numbers of applied blows. In order to obtain thebehavior of the crack growth for each specimens to both mixtures graphics were made to represent crack size (c) as afunction of the applied loading number (N). A graphical representation of fatigue cracking growth rates (dc/dN) as afunction of ∆K is also presented.Keywords: computed tomography, nondestructive test, fatigue, crack growth and asphaltic mixturesFile: E06_210.pdf

CARACTERIZAÇÃO DO ESCOAMENTO HIDRÁULICO NOS TANQUES DE AERAÇÃO DA ESTAÇÃO DETRATAMENTO DE ESGOTO SUZANO, UTILIZANDO-SE TRAÇADOR RADIOATIVO

Eloisa Helena Cherbakian, Pedro Eiti Aoki, José Batista do Nascimento e Valdir Cosmos da Silva

Abstract: Previous studies carried out by Suzano's Wastewater Treatment Station staff responsible for its operation andoptimization indicated a mixing efficiency reduction of the existing aeration system, (Filstar superficial mechanicalaerator). In this work instantaneous injection of radioactive tracer, bromine-82, was used in order to determine themean residence time - MRT and dispersion numbers, in actual scale, with the objective of verifying the hydraulic flowbehavior and the possible existence of dead zones in the Suzano Station aeration tanks, operating with differentaeration systems: ABS submersible aerators, Frings System (tank A) and Filstar aerators (tank D). The obtainedresults showed that all essayed tanks have their hydraulic flow modeled by only one mixed reactor with dispersionnumbers close to 1,0 ( 0,9473 and 0,9403 respectively ), and did not present dead zones. The best homogenizationwas reached in tank A operated with ABS aerators.Keywords: radioactive tracer, aeration tank, dispersion number, wastewater, hydraulic flow.File: E06_415.pdf



inac2002VI ENAN

A IMPORTÂNCIA DO FATOR DE EQUIVALÊNCIA NOS ENSAIOS RADIOGRÁFICOS

Gilberto Carvalho

Abstract: To perform correctly a nondestructive testing, using X and gamma rays, it is necessary to determine and todefine several parameters. In this way, radiographies with acceptable quality and economical costs are obtained.Among the defined parameters, the exposure time is the most important. Therefore, it is fundamental to elaborate theexposure curves, using iron as standard. In the present work, gamma radiation source (192Ir) was used to test othersmaterials. The experimental values with others materials are compared with those theoretically calculated valuesrelated to the standard metal (iron).Keywords: radiography, gammagraphy, exposure curve, exposure factor, radiographic equivalence factor.File: E06_310.pdf

DESENVOLVIMENTO E PRODUÇÃO DE FONTES DE COBALTO-60 PARA APLICAÇÃO EM SIDERÚRGICAS

Paulo Fernando Oliveira, Eduardo Sarmento Valente e Fausto Maretti Júnior

Abstract: The CDTN has developed and produced 60Co sources to be used in level controllers on continuous ingotcasting. The sources used in these systems are sealed with a stainless steel revetment and have an useful life equivalentto one half life of the 60Co (5.272 years). Each system of continuous ingot casting uses a source with one specifiedactivity and different activation section. The sources have been imported with a very high cost due the special shieldsused to keep and transport them safety. One of its sources, with initial activity of 148 MBq, after being used for morethan 5 years in one factory, was given to CDTN to carry out an activation section studies. After these studies beconcluded CDTN/CNEN began the procedures to produce a new source in the IPR-R1 TRIGA Reactor, with an irradiationof one cobalt wire in the maximum flux region of the core. The same mettalic cobalt wire was irradiated (10% of totalactivity), to determinate the necessary irradiation time to obtain the final activation. The CDTN developed too a stainlesssteel recipient with a aluminum nucleus, to seal and to guarantee the integrity of the source.Keywords: cobalt source, research reactor, irradiation, mettalurgy, steel lamination.File: E06_437.pdf

OTIMIZAÇÃO DE UM DECANTADOR/FLOCULADOR DE PLACAS PLANAS VERTICAIS EMPREGANDO-SETRAÇADORES RADIOATIVOS

Luís E. B. Brandão, Armi W. da Nóbrega e Marcelo J. Franchescin

Abstract: A methodology for studies and evaluation, on line , of sewage treatment plants with radioactive tracers ispresented. Using 110mAg and 140La as tracers for the solid phase, it was possible to analyze the response, residencetime distribution functions (RTD), of the unit in various experimental situations and identify problems in its normaloperation that interfere in the final quality of the effluent treatment. The technique represents a guideline for redesign aimperfect unit, eliminate an incorrect operational operation and turning the unit more efficient.Keywords: radiotracers, wastwater, setting tank, sedimentationFile: E06_901.pdf

ESTUDO EXPERIMENTAL DO TEMPO DE RESIDÊNCIA DE PARTÍCULAS EM SECADOR ‘SPRAY’

Marcelo G. G. Mazza, Catarina R. Silveira, Eder. F. Silva, Glória R. S. Wildhagen, Luis E. B. Brandão

Abstract: In this paper is presented a study of particle residence time in a co-current spray dryer operated with a rotaryatomizer. It is proposed a nuclear technique, using 140La as tracer. The methodology is based on the injection of tracerinto the feed stream and the measurement of its concentration in outlet stream. The experiments are carried out duringthe drying of gadolinium oxide suspensions. The functions of residence time distributions behaved as hoped and hadgood reproducibility, indicating that the technique applied is perfectly adequate for this type of equipment.Keywords: spray dryer, residence time distribution.File: E06_229.pdf

Isotopic Techniques in Environmental and Industrial Processes



inac2002VI ENAN

Isotopic Techniques in Environmental and Industrial ProcessesPRODUCCION DE CENTROS DE COLOR EN EL TOPACIO NATURAL IRRADIADO CON NEUTRONES EN EL

NUCLEO DEL REACTOR PERUANO RP-10

Javier Gomez B., Fernando Parreño Z., Gerardo lazaro, Jose Solis, Mariano Vela

Abstract: The ionizing radiation’s give the necessary energy so that the electrons, originally bound to the atoms of theglass, they can occupy energy levels that are inside the forbidden band, producing defects in the topaz glass, creatingin this way, color centers.The bands of energy absorption in the visible range (300–800 nm.) they are produced by the color centers in the naturaltopaz, after being irradiated with neutrons, in the nucleus of the Peruvian reactor RP-10. These bands are studied bythe spectroscopy in the visible range. We find that the bands of energy absorption are different in colorless topazes andirradiated topazes.Depending of the energy of used radiation the impurities of the glass are activated, generating in this way, radioisotopesof lingering half life, it was developed a device made of aluminum and cadmium to absorb neutrons that are the causingof the activation of impurities and to favor the step to neutrons that cause the formation of color centers. These resultsare analyzed for the optimization of the irradiation with neutrons in the change of color of the topaz glass.Keywords: topaz crystal, color center, optical absorption.File: E06_397.pdf

FABRICATION, QUALIFICATION AND CALIBRATION OF 60Co SEALED SOURCES

Jose L. Freijo, Guillermo Ferenaz, Enrique Corrales, Jose L. Regueiro,Cristian Szieber, Rosa Samper, Abraham D. Banchik

Abstract: Argentina produces about 5% of the worldwide production of 60Co radioisotope (3,000,000 of Ci/year) whosemain application is the radio sterilization of disposable medical consumables, the radiating therapy, and the foodpreservation for human consumption. From 1985 to the present 56,000,000 Ci were produced. At first all the generated60Co was exported in bulk to the sealed sources producers, but now the local production of sources has been consolidatedand 100% of the 60Co is used to manufacture sealed sources. That is a successful production of around 400 sealedsources, 70% of which have been made during the last three years. Mainly 95% of the sealed sources for industrialapplications were exported to the United States, Europe, Japan and China. These countries are the main importationcenters. The local and regional markets are the most important users of the sources for x-ray radiography. At present8% of the total sources that were produced are used as x-ray sources. The present work describes the development ofthe sequence of manufacture of simple and double encapsulated radioactive sources, which includes the in-processinspection, the certification of the sealed sources according the designation E66646 (5,7) of the ISO 2919:1999(E)standard and a statistical quality control analysis of the penetration of the seam weld of the end caps.Keywords: cobalt 60; sealed sources; fabrication, validation.File: E06_774.pdf

TIOCIANATO COMO TRAÇADOR RADIOATIVO EM CAMPO DE PETRÓLEO

Elaine Henriques Teixeira Pereira, Fabiane Ferreira de Souza,Amenônia Maria Ferreira Pinto e Rubens Martins Moreira

Abstract: Currently, most of the oil exploration in reservoirs is made out if the assistance of the injection of differentfluids, waters in particular, to increase production. For this reason it has been largely spread the application of chemicaland/or radioactive tracers in the study of the characteristics of transport of the injected fluid between injection andproduction wells. K35SCN is considered a good tracer due to its higher solubility in water and low adsorption. This workpresents a brief review of the methods described in literature for obtain S-35. It was found out to be the most appropriatemethod the synthesis of thiocyanate starting from the reaction of KCN and S-35. It was also investigated the efficiencyof the reaction for the obtention of KSCN.Keywords: tracers, thiocyante, 35SFile: E06_500.pdf



inac2002VI ENAN

Isotopic Techniques in Environmental and Industrial Processes99mTc-EDTA AND 99mTc-DTPA COMPLEXES AS HYDROLOGICAL TRACERS

Domínguez, J., Borroto, J., Gamboa,R., Nazco,J., Cruz,J., Pérez,E.,

Abstract: The [99mTc-DTPA] 2- and [99mTc-EDTA]1- were evaluated as radiotracers for short time hydrological studies.Their complex stability after labelling with 9.25 GBq of 99mTc, the behaviour against pH variations, from 5 to 9, insimulated solutions and in natural river waters and the sorption of these compounds on the river sediments, weretested in laboratory experiments. Finally field double tracing experiments were carried out for each of labellingcomplexes and Rodhamine WT. From recovery calculations not losses of the 99mTc activity were observed. Theshape of the RTD curves of the [99mTc-DTPA] 2- and [99mTc-EDTA]1 were quite similar to the Rodhamine Wt ones.May be concluded that both complexes behaved conservatively on the studied environmental conditions.Keywords: radiotracer, [99mTc-DTPA], [99mTc-EDTA], sorption, Rodhamine WTFile: E06_073.pdf

ON NUMERICAL DECONVOLUTION FOR DATA ANALYSIS OF TRACERS’ EXPERIMENTS

Manuel R. Burgos and Philippe Berne

Abstract: Data analysis of a tracer experiment is performed for studying the plant behavior, impact of procedures’changes and several other goals. In all these cases, the observed data is the convolution of an injection function, andthe system’s transfer function under study. Practical discrete time convolutions may be performed multiplying a matrixof the process’ transfer function with the input vector, but for deconvolution it is necessary to invert the matrix wich issingular in a causal system.Another method for deconvolution is by means of Fourier Transforms. Actual readings are usually corrupted by noiseand besides its transforms shows high low frequencies components and high frequency ones mainly due to additivenoise. Subjective decisions as cut-off frequency should be taken as well.This paper proposes a deconvolution method based on parameters fitting of suitable models, where they exist, andestimation of values where analytical forms are not available. It is based on the global, non linear fitting of them, witha criteria of maximum likelihood.Keywords: numerical deconvolution, measures correction, non linear models fitting.File: E06_581.pdf

UN MÉTODO RADIACTIVO PARA MEDIR EL FLUJO, POR UN TUBO, EN UNA FASE Y SU APLICACIÓN A MÁSFASES

Francisco Pablo Ramírez García y María Eugenia Cortés Islas

Abstract: As it is known, in the industry it is necessary to measure the flow of the fluids, either in one phase or in severalphases. However, an universal method that allows to carry out this mensuration, doesn’t exist especially when two ormore phases happen simultaneously. Fortunately, the use of radioactive sources and the electronics of great speed,as the personal computers, they help to carry out mensurations of flow of liquids, gases or solids.The present work describes a mensuration method with radioactive and detecting sources of radiation located inexternal parts to the pipe. This method uses quick algorithms of calculation to obtain the volumtric and massic flowthat moves inside a pipe. The method has been applied in the mensuration of the flow with several phases. Thecharacteristics that distinguish this method are its simplicity, speed and the capacity to use it to measure flows in oneand more phases.To diminish the uncertainty in the mensuration associated to this method results of the statistic they are applied andof the Theory of Mensuration of errors.Keywords: flow rate; tracer technique; multi-phase measurementFile: E06_193.pdf

2002VI ENAN

inac



MEDICINE ANDMEDICINE ANDHEALTHHEALTHEE 0707MEDICINE ANDMEDICINE ANDHEALTHHEALTHEE 0707

MEDICINE ANDMEDICINE ANDHEALTHHEALTHEE 0707



inac2002VI ENAN

Medicine and HealthCARACTERIZAÇÃO DE ALOENXERTOS SUBMETIDOS À RADIAÇÃO IONIZANTE

Selma Cecília Bourroul, Eddy Segura Pino, Marisa Roma Herson, Monica Beatriz Mathor

Abstract: The skin has a fundamental role in the viability of human body. In case of extensive wound, the allograftcome as alternative to cover those areas temporarily. After the donor’s screen, and preserved in glycerol 85%, theskin can be stored in Skin Bank. In this concentration glycerol have bacteriostatic effect, this, however, effective aftercertain time of preservation. The ionizing radiation sterilization reduces the period for implantation in patients. Theobjective of this work was to evaluate the allograft from two sources of ionizing radiation. Through the analysis ofstress-strain, it was intended to verify possible effects of the radiation in the structure of preserved grafts. Three groupsof same skin samples were selected. The first group was maintained in the initial conditions, not irradiated. Thesecond, submitted in cobalt-60 irradiator. The third group was submitted in Accelerator Dynamitron JOB188 electronbeam. This irradiation dose was 25kGy for both tests. Both irradiation sources and Instron Universal Machine forbiomechanics experiments are installed in Centro de Tecnologia das Radiações / Instituto de Pesquisas Energéticase Nucleares - SP. The preliminary results seem to maintain of biomechanics characteristics of the samples irradiatedin relation to the group not irradiated.Keywords: ionizing radiation, tissue bank, skin, biomechanic propertie, Young’s modulusFile: E07_179.pdf

MARCAÇÃO DO PEPTÍDEO INTESTINAL VASOATIVO (VIP) COM IODO-131 POR MÉTODO DIRETO

Colturato, M.T.; da Silva, C.P.G. e Araújo, E.B.

Abstract: The Vasoactive Intestinal Peptide (VIP) is a 28-amino acid polypeptide with a great numbers of receptors intumoral cells, including adenocarcinomas and pancreatic and colon carcinomas. The VIP molecule contains twotyrosine residues, in positions 10 and 22, that are theoretically equally susceptible to iodination, The VIP was labeledwith 131-iodine by direct method using Iodogen as oxidant agent: 15.03 mmol VIP + 0.10 nmol KI + [131I]NaI + 13.9mmol Iodogen; the final volume was adjust to 100 µL using 0.2M phosphate buffer, pH 7.5 and the reaction proceedwith stirring for 30 minutes at room temperature. The radiochemical purity was determined by electrophoresis(Whatman 1MM paper; 0.05M barbital buffer; pH 8.6; 150V; 40 minutes) that indicates low percent of free 131-iodine.The high performance liquid chromatography (HPLC) system using RPC18, 10 µm, 4x250mm column, was able toseparate the different radiochemical species, only when an isocratic mixture of acetonitrile:0.1% trifluoroacetic acid(27:73) was used, with 0.5 mL/min. flux.Keywords: vasoactive intestinal peptide, [131I]-VIP, radiolabelling, receptor scintigraphyFile: E07_633.pdf

ANÁLISE DA IMUNORREATIVIDADE DO ANTICORPO MONOCLONAL ANTI-CEA IOR-1 MARCADO COM 99mTc

Carla Roberta de B. R. Dias, Rosana Herrerias, José Antônio Pires,Dulcila M. L. Bernardes, Marycel F. de Barboza, Constância P. G. da Silva

Abstract: The anti-CEA IOR-1 (Centis Cuba) is a monoclonal antibody against carcinoembryonic antigen of coloncarcinoma. Labeled with 99mTc it has a main application in Nuclear Medicine: follow up, detection and evaluation oftumor recurrences, specially those of the gastrointestinal track. The objective of this work is to determine if the antibodykeeps its immunoreactive properties once radiolabelled. After the reduction, purification and evaluation of the protetic– fraction of anti-CEA IOR-1 it is necessary to label with pertechnetate (99m Tc) via Sn++ reduction in the presence of aweak chelating agent: methylene diphosphonate (MDP) and to analyse its immunoreactivity. The evaluation of theimmunoreactivity is performed by quantitative and qualitative methods of immunoanalysis. This was the chosenmethod, employing thin layer affinity chromatography. A yield of 60% was obtained, showing the antibody – antigenaffinity.Keywords: immunoreactivity, colon carcinoma, nuclear medicine, monoclonal antibody.File: E07_705.pdf



inac2002VI ENAN

Medicine and HealthPCR ASSOCIADO A HIBRIDIZAÇÃO COM SONDAS RADIOATIVAS DE DNA PARA A IDENTIFICAÇÃO DE

INFECÇÃO SUBCLINICA CAUSADA POR LEISHMANIA CHAGASI

Antero Silva Ribeiro de Andrade, Elizabeth Castro Moreno, Rosângela Fátima Gomes, Octávio Fernandes,Maria Norma de Melo & Mariângela Carneiro

Abstract: Detection systems for diagnosis of leishmaniasis based on PCR are very promising due to their sensitivityand specificity. Secondary detection by specific radioactive DNA probes, able to type the PCR amplified products,increase the specificity and raise about tem-fold the sensitivity of the assay. The aim of this work was evaluate PCRand hybridization as a tool to identify Leishmania (Leishmania) chagasi (the specie that cause the visceralleishmaniasis in Brazil) infection in asymptomatic persons living in a endemic area. Material and Methods: A groupof 226 asymptomatic individuals, living in General Carneiro (MG), was selected. Blood samples were harvested andthe DNA extracted from the mononucleate cells. PCR was performed using primers addressed to the kinetoplastDNA minicircles. This protocol gives a positive reaction for all Leishmania species. The amplified products werefurther hybridized with cloned L. chagasi minicircles labeled with 32P. Results: Were identified 111 samples PCRpositive, 2 of them hybridization negative and 133 samples hybridization positive, 24 of them PCR negative. Discussionand Conclusions: The occurrence of samples with hybridization positive and PCR negative was expected sincehybridization, with DNA probes labeled with 32P, increase the sensitivity of the assay. The samples that presentedpositive PCR and negative hybridization were probably due the presence of other Leishmania species, likely L. (V.)braziliensis (that produce tegumentary leishmaniasis in the region), since L. (L.) chagasi cloned minicircles wereused as hybridization probe. We conclude that this procedure is a valuable tool to access subclinical L. (L.) chagasiinfections in epidemiological studies.Keywords: Leishmania chagasi, PCR, DNA hybridization and diagnosisFile: E07_749.pdf

SYNTHESIS AND QUALITY CONTROL OF 18F-FDG at IPEN-CNEN/SP

Barboza, M.F.: Sciani, V.; Herrerias, R.; Sumiya, L.C.A.A.; Marialva Neto, A.A.; Mengatti, J.;Sosa de Pereira, N.; da Silva, Constância P. G.

Abstract: In this paper the procedure developed at IPEN-CNEN/SP and some results of the 18F- FDG production andquality control during the year are presented.Keywords: fluorine-18 fluorodeoxyglucose, positron emission tomography, radiofluorination.File: E07_712.pdf

MÉTODO SIMPLIFICADO PARA AVALIAR A QUALIDADE DO SISTEMA MAMOGRÁFICO

Claudio Domingues de Almeida, Larissa Conceição Gomes Oliveira, Célia Maria Campos Coutinho

Abstract: In order to produce mammograms at the lowest doses consistent with high diagnostic sensitivity andspecificity, it is necessary that careful consideration be given to the selection of equipment, patient positioning andimaging techniques, besides the establishment of an effective quality control program. So, in this work is proposed acomprehensive method to evaluate the consistence of quality mammographic systems by analyzing results fromautomatic exposure control, image contrast index, optical densities and image quality from a mammographicphantom. Results point out that from a total of 12 installed units analyzed, classified as good equipments, 8%overexposure the patients above from those necessary to register adequated optical densities when 58% of phantomimages presented values below from those acceptable index. Yet, 33% of equipments had shown failures on AECand 50% of images presented poor quality. Finally, on this statistic, only one installation executed procedures ofquality control. Conclusion shows the necessity of simple and objective methods which should be part of routines inmammographic installations.Keywords: quality control; mammographic phantom; mammographyFile: E07_663.pdf



inac2002VI ENAN

Medicine and HealthEFEITO DA TETRODOTOXINA NA LIBERAÇÃO DE ACETILCOLINA ESTIMULADA POR AGONISTAS

GLUTAMATÉRGICOS EM TECIDO ESTRIATAL DE RATOS

Paulo Cesar de Arruda Paes; Maria AP Camillo, Jose Roberto Rogero & Lanfranco R P Troncone

Abstract: The toxins of animal venoms have been used as important tools for biochemical studies of physiologicaland pathological processes of diverse systems. In this work we used the action of tetrodotoxin on sodium channels tomap the localization of glutamate receptors in cholinergic neurons from striatum tissue of rats. All glutamate receptorsare exciting, so they promote the release of other neurotransmitters. In this work we focus on acetylcholine. Thelocalization of glutamate receptor, on the soma or on the excitatory terminal, may contribute for a better understandingof its function. For this work we applied the in vitro method of tritiated neurotransmitter release. The agonists ofglutamate receptors chosen were glutamic acid 500µM, NMDA 100µM, kainic acid 300µM, quisqualic acid 300µMand AMPA 1mM. In the first part of the assay the basal and stimulated releases were measured and in the second, thesame protocol was performed in the presence of tetrodotoxin 1 µM. The reductions observed in basal and stimulatedrelease in the presence of tetrodotoxin suggested that the receptors type AMPA and NMDA were located in soma ofcholinergic cell preferentially and the other ones presented a more equilibrate distribution among the axons and thesoma.Keywords: tetrodotoxina , acetilcolina , glutamato , liberação , estriatoFile: E07_907.pdf

SISTEMA PARA AVALIAÇÃO, EM TEMPO REAL, DA HOMOGENEIDADE DO FEIXE EXTERNO DO CÍCLOTRONCYCLONE 30 DO IPEN/CNEN-SP

Hylton Matsuda e Valdir Sciani

Abstract: The IPEN-CNEN/SP’s Cyclone 30 Cyclotron works exclusively for production of radioisotopes used in nuclearmedicine diagnoses. The radioisotope production can significantly be affected by beam homogeneity throughoutthe irradiation since there are, in the target, some places in which the beam currents are higher than others (hotspots). To verify the power distribution on the target surface, it was developed and installed, in one of the output of theCyclone 30 cyclotron beam line, a special targetry containing thermocouples set in specified places of irradiatedarea. The signals from the thermocouples were collected by local electronic module, and they were sent by RS-485serial communication to the microcomputer placed into the Cyclone 30 control room, as the way that the beamhomogeneity could be monitored during the irradiation, in real time.Keywords: cyclotron, beam homogeneity, targetry, radioisotopesFile: E07_704.pdf

VIABILIDADE DO USO DE ANÁLOGO DE SOMATOSTATINA NA TERAPIA DE CAPTURA DE NÊUTRONS

Letícia Drummond Rezende e Tarcísio Passos Ribeiro Campos

Abstract: Recently, hormonal compounds have been used to treat several types of tumors. The Somatostatin Analogues(SSTA) brought considerable attention to the researchers. Cancer cells from diferent origins, like lung and pituitarycancers contain Somatostatin Receptors (SSTR), which are able to bind Somatostatin (SST) or SSTA. The SST isa natural peptide produced by humans, being an inhibitor of angiogenesis. However, its presence in the organism isof little relevance, because of its fast elimination after being produced. A tumor, being constituted of high vascularizedtissue, can have its growth interrupted by cutting off its vascularization. The present work considers the tumoral SSTR,proposing the sinthesys of the complex of an SSTA aggregating nuclides of high cross-section to the capture ofneutrons. It also verifies the viability of using this complex, associated to the external irradiation, for cancer therapy,through a computational model simulating a clinical treatment NCT (Neutron Capture Therapy) type, (consideringknown biodistributing parameters). This kind of therapy (associated to others therapies) can be an alternative fortreatting unresectable tumors. The synthesis of the pharmaceutical is in progress.Keywords: neutron capture therapy (NCT), somatostatin, dosimetry, monte carlo codeFile: E07_249.pdf



inac2002VI ENAN

Medicine and HealthFATORES DE RETRO-ESPALHAMENTO PARA FEIXES DE RAIOS-X DIAGNÓSTICO MÉDICO

Marco Aurélio S. Lacerda e Teógenes A. da Silva

Abstract: Backscatter factors in the diagnostic radiology quality range (mean energy between 27,1 keV to 50,2 keV)were measured. Ionization chambers of different forms and volumes and termoluminescent detectors of lithiumfluoride (TLD-100) for 15 x 15 cm2 field sizes were used. BSFs values obtained with TLDs showed a good agreementwith those published elsewhere; BSF’s obtained through ionization chamber measurements didn’t. Causes of thisdisagreement were discussed in the present work. Results suggest that TLDs are more adequate than ionizationchambers for BSFs measurements.Keywords: BSF, backscatter factors, diagnostic radiology, TLD-100.File: E07_186.pdf

PURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE "ARMED SPIDER" AND

SYNTHESIS OF A RADIOACTIVE PROBE

Raquel Gouvea dos Santos; Catherine Van Renterghem; Yasuo Mori; Nicole Martin-Moutot; Pascal Mansuelle;François Sampieri; Marta Nascimento Cordeiro; Carlos Ribeiro Diniz; Maria Elena De Lima; Michael Seagar

Abstract: The venom of the “armed spider”, a South American spider from the genus Phoneutria contains severaltoxins that exert important biological effects. ωPhonetoxin IIA ( ω-PtxIIA) is a potent neurotoxin from this venom evokingflaccid paralysis and death after intracerebroventricular injection in mouse. This toxin blocks HVA calcium channels.Calcium channels have been shown to be important targets in neurological patophysiology like ataxia and migraine.In order to shed more light on the mechanism of action of ω-PtxIIA, we have purified this toxin to synthesize a radioactiveprobe. Crude venom was fractionated in three steps of reversed-phase liquid chromatography (RP-HPLC).Spectrometric analysis of the purified fraction (causing flaccid paralysis) was recorded on a MALDI-TOF PerseptiveVoyager Elite spectrometer and a 8363 kDa peptide was detected. After amino acid sequencing the purity of thepeptide was confirmed and it was identified as ω-PtxIIA. ω-PtxIIA was radiolabeled with 125I using the lactoperoxidaseas a oxidizing agent. The stability of the probe synthesized was verified by the binding studies on rat brain synaptosomalmembranes. The specific and saturable binding of the 125I-ω-PtxIIA to the membranes indicate that the iodineintroduced in the toxin molecule did not interfer with its activity. Native ω-PtxIIA competed with the 125I-ω-PtxIIA boundto the specific sites on synaptosomes (IC50= 0.54 nM). In this paper we described a new and simpler purificationprotocol of the ω-PtxIIA and synthesized a probe that proved to be useful to study the mechanism of action of 125I-ω-PtxIIA. Selective toxins for calcium channel are very useful tools to the study of some neuronal pathophysiology.Keywords: Phoneutria, CaV2 channels, binding, radiolabelingFile: E07_652.pdf

HIDROGEL DE POLI(1-VINIL-2-PIRROLIDONA) (PVP) COMO MATRIZ POLIMÉRICA

PARA SISTEMA DE LIBERAÇÃO DE FÁRMACO

Sizue O. Rogero, Solange G. Lorenzetti, Gina Chin e Ademar B. Lugão

Abstract: Hydrogels of poly vinyl pyrrolidone (PVP) are been utilized as biomaterials mainly due to present no toxicityand no dermal irritability when in contact with skin. Moreover these hydrogels present strong property of swelling.Based on these facts, in this work it was utilized the hydrogel of PVP obtained by ionizing radiation as matrix of drugdelivery system. After immobilization of estradiol it was performed in vitro test of drug release using Franz´s cell. Thereleased estradiol was evaluated in HPLC and presented in a graphic. It can be concluded that the hydrogel of PVPis suitable to be used as polymeric matrix in a drug delivery system.Keywords: PVP hydrogel, in vitro drug release, estradiol delivery system, PVP polymer matrix.File: E07_434.pdf



inac2002VI ENAN

Medicine and HealthAVALIAÇÃO DA PERDA DENTAL HUMANA COM O USO DO CLAREADOR PERÓXIDO DE CARBAMIDA

COMPARADO AO CONDICIONAMENTO COM ÁCIDO FOSFÓRICO – MÉTODO RADIOMÉTRICO

Eduardo Makoto Adachi, Michel Nicolau Youssef e Mitiko Saiki

Abstract: The radiometric method was applied to the evaluation of dental loss caused by carbamide peroxide whenit is applied on the surface layers of enamel and dentin tissues. Also the dental loss caused by the etching with 37%phosphoric acid procedure used in aesthetic restoration was assessed for comparison with those results obtained.The tooth samples irradiated with a P standard in a thermal neutron flux of the nuclear reactor were placed in contactwith 10% carbamide peroxide or with 37% phosphoric acid solution. The radioactivity of 32P transferred from theradioactive teeth to the bleaching gel or to etching acid was measured using a Geiger Muller detector to calculatethe mass of P removed in this treatment and losses were calculated after obtaining their P concentrations.Results obtained indicated that enamel and dentin exposed to carbamide peroxide bleaching agent lose phosphorus.The extent of enamel loss was smaller than that obtained for dentin. In the case of acid etching, there was no differencebetween the results obtained for enamel and dentin loss. Also the dentin loss obtained after a treatment of 30applications of 10% carbamide peroxide was the same magnitude of that one application of 37% phosphoric acid.Keywords: tooth bleaching, dental loss, carbamide peroxide, acid etching.File: E07_369.pdf

PROTEÇÃO RADIOLÓGICA EM RADIODIAGNÓSTICO ODONTOLÓGICO EM MINAS GERAIS

Thêssa C. Alonso , Elton G. Pereira , Teógenes A. da Silva, Elton C. Guedes

Abstract: Since 1995 the Divisão de Proteção Radiológica do Centro de Desenvolvimento da Tecnologia Nuclear(CDTN) of the Comissão Nacional de Energia Nuclear (CNEN) applies radiological surveys in diagnostic rooms andalso applies tests in the x-ray machines in compliance with the legal requirements. In 1998 the work was adapted tomatch the requirements of the Portaria 453 “Diretrizes de Proteção Radiológica em Radiodiagnóstico Médico eOdontológico” de 01/06/1998 da Secretaria de Vigilância Sanitária. From 1998 until March 2002, the radiologicalsurveys carried out by CDTN reached 261 dental x-ray machines for intraoral radiographs. Among them 27% showednon conformities with the standards prescribed for the machines or for the rooms. Inadequacies for the patientprotection were found, namely, the value of the skin entrance dose higher than the reference level, the inadequacy ofthe half value layer and the x-ray field diameter higher or lower than the interval prescribed. This work analyses theresults of these three tests and gives an overall view of the radiation protection conditions of the dental facilities inMinas Gerais.Keywords: radiation protection, radiological survey, diagnostic radiologyFile: E07_412.pdf

UMA REVISÃO DE SISTEMAS AUTOMATIZADOS PARA USO EM CÍCLOTRONS

Sumair G. Araujo

Abstract: Automation has a growing role in process controls in general. It is everyday more and present in human kind’sdreams, being pursued by scientists as the solution to improve the quality of life, to replace big efforts, to attend thegrowing demand of the world populace. Automation is a technology that can be applied in several processes to generateproductivity, agility, flexibility and welfare. It opens horizons so that man can multiply his potential, develop his criativityand gives birth to a new age of realizations. Where he will certainly will be the central figure, responsible for decisions.It is up to him to find the best way. In particular, automation of target irradiation systems in cyclotrons is important inorder to reduce the radiation dose received by the personnel and to increase the reliability of the method, leading to animprovement in the radioisotope production capacity. This work presents a literature review of automatized systemscompairing them with the one developed at IPEN. The systems found in literature involve the use of solid, liquid andgaseous targets used in radioisotope production for Nuclear Medicine employing the thechniques of PET (PositronEmission Tomography) and SPET (Single Photon Emission Tomography).Keywords: cyclotrons, irradiation systems, radioisotope production, automation of targetFile: E07_751.pdf



inac2002VI ENAN

Medicine and HealthASSESSMENT OF THE EFFECT OF MENTHA CRISPA L. (HORTELÃ) EXTRACT ON THE LABELING

OF RED BLOOD CELLS AND PLASMA PROTEINS WITH TECHNETIUM-99m

Sebastião D. Santos-Filho; Gláucio L. Diré; Elaine Lima; Mário Pereira; Mário Bernardo-Filho

Abstract: We have investigated the possibility of M. Crispa L. extract being capable to alter the labeling of bloodelements with 99mTc. Blood was incubated with M. Crispa L. extract. Stannous chloride solution and Tc-99m, assodium pertechnetate, were added. Blood was centrifuged and plasma (P) and blood cells (BC) were isolated. Samplesof P and BC were also precipitated, centrifuged and insoluble (IF) and soluble (SF) separated. The percentage ofradioactivity (%ATI) in BC, IF-P and IF-BC was calculated. Histological evaluations were performed and the morphologyof the red blood cells was observed under optical microscopy showing important morphological alterations on theshape of the RBC treated with 6.25% M. Crispa L. extract. The %ATI decreased: (i) on BC from 97.3 ± 1.92 to 60.0 ±2.44; (ii) on IF-P from 74.8 ± 3.78 to 9.99 ± 3.61; (iii) on IF-BC from 88.6 ± 5.41 to 58.4 ± 11.55. The substances of theM. Crispa L. extract could increase the valence of these stannous (+2) ions to stannic (+4) and this fact would decreasethe %ATI on blood elements and indicates the possible presence of oxidant agents in the M. Crispa L. extract.Keywords: Mentha crispa L.; oxidant agent; technetium-99m; red blood cell; plasma proteins.File: E07_041.pdf

INTERCOMPARAÇÃO DAS MEDIÇÕES DE ATIVIDADE DO 67Ga EM SERVIÇOS

DE MEDICINA NUCLEAR BRASILEIROS

Joyra A. Santos, Akira Iwahara, Antonio E. de Oliveira, Luiz Tauhata, Ricardo T. Lopes

Abstract: Since 1998 the National Metrology Laboratory for Ionizing Radiation (LNMRI) of the Institute of RadiationProtection and Dosimetry, of the National Commission on Nuclear Energy (IRD/CNEN), with delegation of the NationalInstitute of Metrology and Industrial Quality (INMETRO), is conducting an intercomparison program for activitymeasurements of radiopharmaceuticals applied to the patients in the field of Nuclear Medicine with the purpose ofquality control. This intercomparison program has been carrying out measurements of 123I, 131I and 99mTc throughout thecountry and, recently, initiated the first intercomparison run with 67Ga with the participation of 27 hospitals of the Stateof Rio de Janeiro. The results had been analyzed under the point of view of conformity with the norms of the RegulatoryAuthority and the accuracy of the measurements in relation to the reference value of the LNMRI which is traceable tothe National Institute of Standards & Technology (NIST/USA). The results showed that these intercomparisons arenecessary to improve the quality of the activity measurements of radiopharmaceuticals, to identify fails in the equipmentand in the technical procedures used by the Brazilian Nuclear Medicine Services.Keywords: nuclear medicine, quality control, intercomparison, activity measurements, 67Ga.File: E07_113.pdf

SINOVECTOMIA RADIOISOTÓPICA ATRAVÉS DO MACROAGREGADO DE HIDRÓXIDO FÉRRICO

PARA TRATAMENTO DA ARTRITE CRÔNICA

Carla Flavia Lima e Tarcisio P.R. Campos

Abstract: Sinovectomy radioisotopic is an arthrit’s treatment used in specific clinical conditions whose main goal is tosterilized the sinovia. This treatment has specific and precise indications and it is considered to have an adequateresponse. The present work presents a modeling of an articulation (joint) based on its real geometric anatomy andchemical constitution. The internal dosimetry is evaluated by the Monte Carlo Code. The majority of the radionuclideswere considered in the simulations. The syntheses of the ferric hydroxide macroaggregates with dysprosium andsamarium have been prepared (Dy165-MHF and Sm153-MHF). Obtaining the cintilographic images of rabbits in whichDy165-MHF is injected is in progress. Biodistribution studies in addition with the internal dosimetry will certify the dose inthe membrane of the sinovia.Keywords: sinovectomia radioisotopic; arthritis; internal dosimetry; MCNPFile: E07_903.pdf



inac2002VI ENAN

Medicine and HealthSPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTES

Maliska, C. M. ; Martins, E. F. ; Barros, D. S. ; Lopes, M. M. S. ; Lourenço, C. ; Gonçalves, S. ; Gonçalves, M. B. ;Miranda, M. M. B. G. ; Neto, L. M. ; Penque, E. ; Antonucci, J. B.

Abstract: Cigarette smoking increases brain stroke risk, however, five to fifteen years after ceasing this habbit, brainperfusion recovers normal pattern. We propose to compare brain perfusion patterns performing brain SPECT scans ofsmokers and non-smokers. Thirteen volunteers age range 20-30 years old) composed of six non-smokers and sevensmokers were studied by brain scans (SPECT).We used ECD- 99m Tc radiolabelled as recommended by the manufacturer.All patients received 740 MBq of the radiopharmaceutical through intravenous injection, with their eyes opened andtheir ears umppluged, in a quiet room. We used a one head Spect camera ( General Electric/ StarCam 4000 andSiemens/ E.Cam) with na low-energy ultrahigh resolution collimator. Imaging begin 40 minutes after tracer injection.For reconstruction we used a Butterworth filter.The preliminary results showed brain perfusion deficit areas on five ofthe smokers while all non- smokers had normal brain perfusion scans. We believe that smoking increases the possibilityof brain perfusion deficits.Keywords: smoker, no smoker, 99m Tc-ECD, brain perfusion.File: E07_220.pdf

MEDIDAS IN VIVO EM PACIENTES SUBMETIDOS À RADIOTERAPIA PARA

TRATAMENTO DE CÂNCER DE CABEÇA E PESCOÇO

Claudio Castelo Branco Viegas, Delano Valdivino S. Batista, Luiz Antonio R. da Rosa e Ricardo T. Lopes

Abstract: In vivo dosimetry in radiotherapy, i.e., the monitoring of the doses received by the patients during their treatments,permits a good verification of the therapy quality. A routine of in vivo dosimetry is, undoubtedly, a direct benefit for thepatient. Unfortunately, in Brazil and in Latin America this procedure is still a privilege for only a few patients. This routineis of common application only in developed countries. The objetive of this work is to implement a routine in vivodosimetry, using diodes, at the radiotherapy section of the National Institute of Cancer in Brazil. The system is tested ina RANDO Alderson Phantom, for 60Co irradiations and two typical forms of tumour treatments, the head and neckregions were considered. The system showed its utility for phantom measurements and, presently, it is being tested inpatients.Keywords: dosimetry, in vivo, radiotherapy, diodeFile: E07_023.pdf

EFEITO DE EXTRATOS DO MARACUJA-AÇU NA BIODISTRIBUIÇÃO DO TECNÉCIO-99m EM CAMUNDONGOS

Bezerra, A.L.; Souza, G.M.L.; Nascimento, E.V.; Carvalho, E.B.; Catanho, M.T.J.A.

Abstract: Medicinal plants have been evaluated and their effect on the biodistribution of radiopharmaceuticals are veryimportant. This work aims to evaluate the interaction of extracts of Passiflora quadrangularis on the biodistribution of99mTc in mice (Mus musculus). The animals were submitted to brief treatment with aqueous (G1) and hydroalcoholic10%(G2) extracts. Control animals received saline solution 0.9% (n=5). The reaction 99mTc (3.7 MBq) in the presence ofstannous chloride and extracts was incubated for 10 minute, then it was injected (ip way) in mice. At the end of 30minutes, animals were sacrificed for removal of organs and 0.5mL of blood, which were counted in gamma counter.Thepercentage of 99mTc-binding was calculated in relation to the weight of each organ. The results show a reductionon right and left kidneys in the presence of aqueous extract at about 26.74%, and more significative reduction in thepresence of hydroalcoholic10% extract at about 72.81%. the trachea presents a binding capacity to 99mTc in order of263.5% in the presence of aqueous extract. These results demonstrate that 99mTc presents affinity to some organsand that the extract of Passiflora quadrangularis is able to alter this labeling. Therefore, more attention has been givento diagnoses with pharmaceutical compounds labeled with radioisotopesKeywords: biodistribution, Passiflora, technetium-99m, medicinal plants, extracts.File: E07_277.pdf



inac2002VI ENAN

Medicine and HealthMODELAGEM DE OLHO HUMANO PARA PROJETO DE SIMULADORES OFTÁLMICOS PARA APLICAÇÕES

CLÍNICAS

Andrea Sanchez, Adimir dos Santos e Hélio Yoriyaz

Abstract: Most of eye tumors are treated by cirurgical means which involve the enucleation of affected eyes. In termsof treatment and control of disease there is brachytherapy, which often are utilizes small applicator of Co-60, I-125, Ru-106, Ir-192, etc. These methods are shown to be very efficient but highly cost. The objetive of this work is to proposean eye simulator modeling with enough details for caracterization. Additionally, this study can contribute to design andbuild a new applicator in order to reduce the cost and to allow more patients for the treatment.Keywords: MCNP code, ophthalmic plaque, retinoblastomas, melanomas.File: E07_354.pdf

EVALUATION OF THE HALF-LIVES FOR DIFFERENT NUCLIDES BY MEANS OF GAMMA-RAY SPECTROMETRY

Mônica A. L. da Silva, Maria C. M. de Almeida and José U. Delgado

Abstract: The use of nuclides as 123I, 131I, 99mTc, 67Ga in nuclear medicine is getting more frequent. As they arecharacterized by the low energy of the radiation and short half-lives, they can be suitable as much for diagnosis andtherapy. It is essential to know the exact dose administered to the patient for avoiding an unnecessary exposition or anerror in diagnosis. The correct evaluation of the absorbed dose by an organ depends on the uncertainty in the valuesof the nuclear parameters as energies, gamma emission probabilities and mainly half-lives related to theradiopharmaceutical. A more accurate procedure for determination of the half-life consisting on the simultaneousmeasurement of a radiopharmaceutical and of a reference radionuclide is presented here. It is based on the gammaspectrometry technique with germanium detector, which avoids instrumental interference, optimizes the time of analysisand identifies radiochemical impurities. This makes possible a better evaluation of the dose, because the uncertaintiesin the half-lives of the radiopharmaceuticals are reduced.Keywords: half-life determination, radiopharmaceutical, gamma-ray spectrometry, reference source method.File: E07_240.pdf

ANÁLISE CITOGENÉTICA DO 153Sm-EDTMP EM LINFÓCITOS PERIFÉRICOS DE PACIENTES COM CÂNCERÓSSEO METASTÁTICO

da Silva, M.A.; Suzuki, M.F.; Guimarães, M.I.C.C.; Buchpiguel, C.A.; Rogero, J.R. ; Okazaki, K.

Abstract: The 153Sm-EDTMP is a radiopharmaceutical used in nuclear medicine with promising results for the relief ofmetastatic pain. Therefore, there are few knowledge about the effects of 153Sm-EDTMP at cellular level. The presentstudy was conducted with the aim of evaluating the cytogenetic effects of 153Sm-EDTMP in peripheral lymphocytes frompatients with bone metastasis (with and without previous radio and/or chemotherapy) by the chromosome aberrationtechnique. For that, the blood samples were collected before and one hour after the endovenous administrations of153Sm-EDTMP (mean activity of 42.53 + 5.31 MBq/kg body weight), taking into account the rapid blood clearance. Theprincipal types of structural chromosome aberrations found gaps and breaks, acentric fragments centric rings, doubleminutes and dicentrics. The statistical analysis showed that the group submitted to previous radio and chemotherapybefore153Sm-EDTMP administration showed significant difference in chromosome aberrations frequency one hour afterthe treatment. The analysis of the chromosome modal number and the kinetics of cellular cycle showed no statisticaldifference among the groups, suggesting that the treatment with 153Sm-EDTMP, did not influence these parameters.The obtained data showed that the therapy with 153Sm-EDTMP induced a few quantity of cytogenetic damages inperipheral lymphocytes one hour after its administration in patients, although, theoretically, a long term stochastic effectcannot be disregarded.Keywords: chromosome aberration, 153Sm-EDTMP, human lymphocyte, pain relief.File: E07_245.pdf



inac2002VI ENAN

Medicine and HealthDOUBLED-PHASE Tc99m SESTAMIBI IMAGING IN LOCALIZATION OF ABNORMAL PARATHYROID GLANDS

Fariba Saddadi

Abstract: Preoperative localization of abnormal parathyroid glands is critical to access the best result after surgery andthere are various tools in this regard. We studied both Tc99m-MIBI and ultrasound (US) to reevaluate their sensitivity inHyperparathyroidism. Methods: 6 patients with clinical findings suggesting hyperparathyroidism were enrolled in thisstudy (4 female and 2 male with a mean age of 16 yrs). In every patient, anterior planar and SPECT study of neck andmediastinum with a LEAP collimator were obtained at 15 min and 2 hrs after 740Mbq Tc99m- MIBI injection. All patientsalso underwent US study. Scan was called positive if focal uptake persisted on delayed images, was called negative ifno uptake was noticed, and in otherwise was equivocal. Results: MIBI in 1/6 subject was equivocal; 4/6was positiveand 1/6 was negative .US was a good modality when MIBI was negative and/or equivocal (n=2). No ectopic parathyroidtissue was defined in this study.Sensitivity of MIBI was more than 92% and specificity was 80% .By combining both images modalities, a correctdiagnosis was made specially in hyperplasia (>50%). Conclusion: We found that doubled -phase Tc99m-MIBI had agood sensitivity and specificity more than US, however, combination of MIBI and US resulted in more accurate localizationbefore surgery.Keywords: Tc99m-MIBI, parathyroid adenoma, ultrasoundFile: E07_074.pdf

DACRIOCINTILOGRAFIA NUCLEAR: AVALIAÇÃO DA DRENAGEM LACRIMAL EM PACIENTES ONCOLÓGICOSPÓS CIRÚRGICOS DE TUMORES DE FACE

Elisabeth F. Martins, Celsa M. Maliska Guimarães, Jane B. Antonucci, Terence P., Emerson Penque

Abstract: The dacryoscintigraphy is a non invasive method of the functional integrity of the drainage lacrimal system. Aperson with normal lacrimal drainage the radioactivity instilled through in the palpebral fissure is immediately drainedfor the lacrimal sac at 5 to 10 seconds. Above the next 30 to 50 seconds there is a drainage of the canaliculi, nasolacrimalsac and from the nasal inferior meatus. The canaliculus, the lacrimal sac and the nasolacrimal duct are well defined ondelayed images. The abnormalities consist of the obvious obstruction and lack of drainage in any of this structures orprolongued time of the drainage through of the nasolacrimal duct.Before any surgery in this region this ralation have to be identified. The nasal lacrimal duct can be damaged by aexcessive ressection of the anterior layer of the natural ostium. If the inferior shell is ressected near the botton, the ductcan be damaged resulting in an oclusion of the nasolacrimal duct and epiphora. The nasolacrimal duct can be lockedin case of inflammatory disease, trauma or neoplasic process.Keywords: dacryoscintigraphy, lacrimal drainage, pertechnetate, nasolacrimal duct, gama camara.File: E07_221.pdf

ESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOS

Rosimeire de S. Freitas, Maria L. Gomes, Deise M.M. Mattos, Silvana R. F. Moreno, Glaucio F. Dire,Elaine A Lima, Guilherme L. Lima-Filho, Luiz Cláudio Aleixo e Mario Bernardo-Filho

Abstract: Radiopharmaceuticals are widely used in nuclear medicine. The comprehension of their uptake mechanismin target organs, as well as their clearence may depend on the elucidation of their biochemical characteristics, forinstance, their binding to blood elements. The reported precipitating studies of blood with radiofarmaceuticals haveshown that the results can not be easily compared. Then, we decide evaluate of the binding proteins on the bloodelements using trichloroacetic acid (TCA) to determine the radioactivity of the dimercaptossiccinic acid with technetium-99m (99mTc-DMSA) present in preciptating plasma (P) and blood cells (BC). Depending on the TCA concentration wehave determinated different values in the insoluble fractions of the plasma when the in vivo and in vitro evaluationswere carried out.Keywords: radiopharmaceuticals, 99mTc-DMSA, blood elementsFile: E07_241.pdf



inac2002VI ENAN

Medicine and HealthOPTIMISATION METHOD FOR THE ADMINISTERED ACTIVITY TO PATIENTS IN Tc-99m-HMPAO

CEREBRAL BLOOD FLOW SPECT IN ADULTS

Marlén Pérez Díaz, Oscar Díaz Rizo, Eric Estévez Aparicio, Reinaldo Roque Díaz, Carlos Hernández Rodríguez

Abstract: A method based on the construction of an image quality discriminant function is proposed. The parameterswhich characterise it are selected among the typical ones measured in a Tc99m – HMPAO cerebral blood flow SPECT.The results are compared among groups of patient’s studies who received different activity (430, 640 and 807 MBq),looking for the minimum that guaranty good image quality. A reduction in the administered 99mTc-HMPAO activity to thepatient down to 430 MBq was possible without affecting the tomographic image quality. The labelling yield was the mainparameter that determined the image quality.Keywords: activity optimisation, Tc99m-HMPAO cerebral SPECT, image quality, patient protection.File: E07_136.pdf

AVALIAÇÃO DOSIMÉTRICA EM FANTOMA GERADO POR UM IRRADIADOR EPITÉRMICOCOM CARGA U235-Cf252

Humberto G. Dias e Tarcísio P. R. Campos

Abstract: Boron Neutron Capture Therapy - BNCT is a promising technique intended to treat malignant brain tumorswhere conventional photon therapies have failed. The main kinds of tumor which BNCT will be applied to are theGlioblastoma Multifome GBM an the Anaplastic Astrocytoma AAS. Neutron sources used to generate an epithermalbeam capable to treat the tumor are nuclear reactors and particle accelerators. In a previous study we proofed thefeasibility to use a novel neutronic subcritical devise. This devise is based on the spontaneous fission of Californium252 and further amplified by fissile fuel. Its neutron beam fulfil the main properties required for a suitable treatment, inaddition with the following advantages: low cost; small size, which enables it to be installed in a gantry to treat multiplefields; easy operation and maintenance and in accordance with safety levels. This paper presents Monte Carlo simulationsof the irradiator parameters, dosimetry results in a brain cubic phantom and intercomparisons with particle acceleratorsand nuclear reactors. This comparison is based in previous defined parameters, such as: treatment time, advantagedepth (AD), advantage ratio (AR), advantage depth dose ratio (ADDR), dose components and dose rate. Computationalcalculations were done using the Monte Carlo N-Particle Code System – MCNP4A.Keywords: epithermal neutron beam irradiator, boron neutron capture therapy, dosimetry, monte carlo.File: E07_255.pdf

AVALIAÇÃO DOSIMÉTRICA EM METÁSTASES APLICADA A RADIOTERAPIA SISTÊMICA

Bruno Melo Mendes e Tarcísio Passos Ribeiro Campos

Abstract: In the cancer pathology the metastases are the major reason for death. The systemic radiotherapy proposesthe prescription of systemic radiopharmaceulticals that, through their many ways of affinity with the cancerous cells, willconcentrate radioisotopes on the tumor and in its metastasis, generating a possible control dose for the colonypropagation. Herein, a Monte Carlo based computational model is proposed to evaluate the physical dose in an arbitrarycancerous colony of ~104 small lung cancer cells, considering all possible nuclear, biological, and morphologicalparameters, as well as the specific compartment cellular uptakes. As result, physical absorbed dose in MeV/g wasobtained in the cell’s nucleus, in the cytoplasm and in the interstice, provided by x-rays, gamma rays, Auger electronsand Beta particles emitted from the following radioisotope decays: Es-89, Y-90, In-111, Sm-153, Dy-165, Ho-166, Er-169 e Re-188. It can be verified, from the reduced colony model, that the Auger electrons are responsible for a largepart of the total absorbed dose, despite of the Beta energy emitted. Issuing the Auger electrons emitted by radioisotopes,as In-111 and Sm-153, reached the largest doses in the nucleus of the colony’s model. The present data, conjugatedwith a simple biokinetics model, histological data, and medical cintilographic images allow an improvement in theevaluation of the radiopharmaceutical concentration to be prescribed for the patient.Keywords: Systemic radiotherapy, metastasis, cancer, radiopharmaceutical.File: E07_042.pdf



inac2002VI ENAN

Medicine and HealthESTÁGIO ATUAL DO PROJETO DE PREPARO DO GEL DE MOLIBDATO DE ZIRCÔNIO

PARA USO NOS GERADORES DE 99Mo/99mTc

João A. Osso Jr., Nestor C. da Silva, Ana Lúcia V. P. Lima, Fábio de Camargo,Renata C. Nieto, Vanessa Moraes e Liliane Landini

Abstract: The project for the preparation of a gel of zirconium molybdate for use in the generators of 99Mo/99mTc is partof the program of radioisotope production nationalization carried out at IPEN. Nowadays 99Mo used in the generatorsdistributed by the Instituted is imported and produced by 235U fission. This work describes the actual situation of theproject, in which 99Mo is produced by the 98Mo(n,γ)99Mo using IPEN’s IEA-R1m reactor and further submitted to achemical reaction with Zr under adequate conditions to produce the gel of zirconium molybdate. The results of thetests with the pilot plant will also be presented, and the results compared with those obtained at laboratory level, weresome variables have been studied, such as: pH of the solution containing the gel, initial concentration of Mo and Zr,reaction temperature and addition order of the reagents. An estimative of the routine production of 99Mo/99mTc gel typegenerators will also be given.Keywords: gel generator, technetium-99m, nuclear medicine.File: E07_268.pdf

AVALIAÇÃO DA RADIOTERAPIA E/OU ASSOCIAÇÕES TERAPÊUTICAS EM CÂNCER DE PRÓSTATA

ATRAVÉS DO ANTÍGENO PROSTÁTICO ESPECÍFICO (PSA)

Isabel Cristina Rossiter de Araújo Cardoso e Tarcísio Passos Ribeiro de Campos

Abstract: Novel statistics show that prostate cancer is the third mortality neoplasia type in man and reaches the firstlevel after 75 years old. The disease appears without signal at initial stages of the prostate cancer, period at which itwill be easily treated. The development of the prostate carcinoma in patients dependS on the tumor histologicaldegree, stage of the disease at the diagnostic time, tumoral mass, patient age and patient general health. The prostatespecific antigen (PSA) is the tumor marker used to premature disease detection, stagement and patient monitoringafter treatment. Distinct therapies or in association have been stablished, together with a premature diagnosis, toincrease the patient survival, achieving the best health quality and disease heal. The applied gland dose and itsprofile are distinct between brachytherapy and teletherapy.The present paper discribes several therapies applied tocontrol the prostate tumors, standing radioactive implants (I125) and conventional radiotherapy. The goal of this paperis to show the different PSA levels resulting after radiation therapy, look upon tumor biology aspects, isodose profilesand serum PSA levels.Key words: prostate cancer, radiotherapy, prostate specific antigen.File: E07_757.pdf

QUANTIFICAÇÃO HISTOMORFOMÉTRICA 2D A PARTIR DE TOMOGRAFIA COMPUTADORIZADA 3D

Inayá Lima, José Marcos Alves, Luis Fernando de Oliveira, Ricardo Tadeu Lopes, Edgar Francisco O. de Jesus

Abstract: In the present article, preliminary results are presented showing the application of the tridimensionalcomputerized microtomographic technique (3D-mCT) to bone tissue characterization, through histomorphometricquantification which are based on stereologic concepts. Two samples of human bone were correctly prepared to besubmitted to the tomographic system. The system used to realize that process were a radiographic system with amicrofocus X-ray tube. Through these three processes, acquisition, reconstruction and quantification, it was possibleto get the good results and coherent to the literature data. From this point, it is intended to compare these results withthe information due the conventional method, that is, conventional histomorphometry.Keywords: X ray, microtomography, histomorphometry, trabecular bone, bone anysotropy.File: E07_110.pdf



inac2002VI ENAN

Medicine and HealthPBMC AND MDAMB-231 CELLULAR VIABILITY AFTER TELECOBALT IRRADIATION

Lídia M. Andrade, Ma Fátima Leite, Alfredo M. Góes, Osvaldo Xavier and Tarcísio P. R. Campos

Abstract: Radiotherapy by gamma rays are used for cancer treatment. Ionizing radiation effects on cells has beeninvestigated. Studies in vitro were developed using tumor cell lines and ionizing radiation. The aim of this researchwas to test the cellular viability response of two cell types through MTT assay: human peripheral blood mononuclearcell (PBMC) and human breast carcinoma cell line MDAMB-231. These cells were irradiated with 60Co sourceTheratron 80 radiotherapy machine from Atomic Energy Canada Limited with 20 x 20cm field at 136.4cGy/min,surface source distance 70cm. Culture flasks contained 104, 105 and 106 cells were irradiated with 10Gy, 25Gy, and50Gy using non fractionated doses. Cellular viability were evaluated 1h, 24h, 48h and 72h after irradiation and sampleswere measured by optical density at 595nm. Our results show that PBMC cells present lower cellular viability postirradiation. On the other hand, MDAMB-231 cells maintain viability after 50Gy irradiation at 72h indicating cellularradioresistance.Keywords: breast cancer, cellular viability, gamma irradiation.File: E07_763.pdf

ESTUDO DO DESEMPENHO DO GEL DE MOLIBDÊNIO COM TITÂNIO PARA UTILIZAÇÃO

NOS GERADORES DE 99Mo/99mTc

Vanessa Moraes, Renata C. Nieto, Fábio de Camargo e João A. Osso Jr.

Abstract: 99mTc is the most used radioisotope in Nuclear Medicine for kidney, brain, liver, lung and bone scans, due toits nuclear properties. It is produced from the radioactive decay of 99Mo, the basis for a radioisotope generator system.99Mo can be produced by several nuclear reactions in nuclear reactors and cyclotrons. In this work, 99Mo will beproduced by 98Mo (n, γ) 99Mo reaction and a gel type chromatographic generator will be prepared, containingmolybdenum and titanium. This study is part of the radioisotope production nationalization politics at IPEN-CNEN/SP. The gel type generator is prepared by mixing a titanium chloride solution at proper pH with molybdenum oxidedissolved at proper pH, with stirring and further filtration, drying and cracking of the gel. The following variables werestudied: mass relation of Mo and Ti, NaOH concentration, temperature and final pH. The gel characterization consistedof particle size distribution and quantitative analysis of Mo and Ti. These results will be compared with those obtainedwith the gel containing Mo and Zr.Keywords: gel generator, titanium molibdate, nuclear medicineFile: E07_567.pdf

ALGORITMO PARA AVALIAÇÃO DE FLUXO DE FÓTONS EM TECIDO BASEADO NA

TÉCNICA DOS ELEMENTOS FINITOS

Paulo M. C. Gomes e Tarcísio P. R. Campos

Abstract: Models for predicting foton tranport are needed to otimize radiodiagnostic and radiotherapy. Here wasdeveloped a mathematical tridimensional model of foton transport and its partial computer implementation ispresented. The models is based on spatial discretion of neutral particles transport equation – the Boltzmann equation.This equation is applied to a dominion discretized by thetraedron elements is transformed into a linear system. To doso, the vacuum contour, reflection, and source surface conditions were implemeted. The model is based on thesolution of monoenergetic transport equation that is independent of time and angular scattering. Though the evenparity equation, the P1 approximation, the variational formulation, the spatial variable was approached by finite elementsthetraedrons. The present methods allows that the neutron particle transport in 3D complex geometry heterogeneousmaterials be modelated.Keywords: radiodiagnostic, radiotherapy, foton transport, element finiteFile: E07_627.pdf



inac2002VI ENAN

Medicine and HealthPOSSIBILIDADES DE DIGITALIZAÇAO RADIOGRÁFICA NA CLÍNICA ODONTOLÓGICA

Madelon A.F.Zenóbio e Elton Gonçalves Zenóbio

Abstract: In the evolution diagnostic processes by image, the improvement of the intrabucal radiographic sensibilitygenerated and digitalizated is today, of great expressiveness in the evolution and effectiveness in the odontologicalarea. This methodology applicability as a possibility of a more precise and accurate diagnostic formulation amongother advantages, justifies this technique use. This paper intends to, thorough the literature magazine and cliniccase presentations to show its applicability in the daily odontological clinic, and specially, in the periodonty area.Keywords: radiographic digitized, digital imaging, dental digitized radiographyFile: E07_659.pdf

PRODUCTION OF SELENIUM-75 AND RADIOSYNTHESIS OF [75Se]-4-ETHOXYCARBONYL-5-METHYL-1,2,3-SELENADIAZOLE

Amir R. Jalilian , Pejman Roushanfarzad, Mohammad Ensaf, Hossein Afarideh, Abbas Shafiee and Hamid Rafiei

Abstract: 75Se-Selenium is a potential radioisotope used in gamma camera calibration and preparation of adrenalimaging agents. It has been prepared in no-carrier-added (n.c.a) form, by 22 MeV proton-bombardment of acompressed disc of high purity natural arsenous oxide, using a newly designed copper-aluminum drawer target in a30 MeV cyclotron at NRCAM. As a model compound, [75Se]-4-ethoxycarbonyl 5-methyl 1,2,3-selenadiazole (2b) wasprepared from ethylacetoacetate semicarbazone (1) in one step using [75Se]-seleniumdioxide in glacial acetic acidas the solvent at 50°C. Column chromatography by silica and C 18 short columns afforded the desired labeled compoundin 25-30 % yield with a specific activity about 3 Ci/mmole and radiochemical purity more than 95% at a high purity.Chemical and radiochemical analysis by TLC and RTLC showed that the radiosynthesis had been successful. Thefinal solution was then purified for biological studies on test animals.Keywords: selenium-75, adrenal imaging agents, gamma camera calibrationFile: E07_065.pdf

2002VI ENAN

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AGRICULTUREAGRICULTUREEE 0808AGRICULTUREAGRICULTUREEE 0808

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inac2002VI ENAN

Agriculture PESQUISA DO ESPECTRO DE RAIOS-X NA AQUISIÇÃO E PROCESSAMENTO DE IMAGENS DIGITAIS PARA A

DETECÇÃO DE DESORDENS INTERNAS EM FRUTOS DA MANGUEIRA (Mangifera indica L.)

RubeMar S. Ferreira, Murillo Freire Júnior, Edgar de Jesus e Neide Botrel

Abstract: In this work, digital image processing was associated to x-ray beam relevant to watching internal injuries,such as breakdown, soft nose and other physiological disturbs in mangoes CV Tommy Atkins. The X-ray source wasa high frequency generator operating to a high tension between 14 to 35 kV on a molybdenum target tube, whichgenerate x-ray characteristic near from 18,5 keV and 20 keV (k an l shell) plus a continuous spectrum, thought to beproper to get radiological images from mangoes in different maturation stages. Different filtrations and pseudo-colorstechnique were used to process the digital images produced. Results, from a group of comparative images, showthe feasibility to detect several classes of internal disorders as well as others produced in packinghouses andtransport of mangoes.Keywords: digital image processing, quality control post-harvestFile: E08_093.pdf

EFEITO DO pH NA ADSORÇÃO DE RADIOCÉSIO EM SOLOS TROPICAIS

Mário Lúcio Roque; Antonio E. Boaretto; Antonio C. Moniz; Erik E. T. Smolders

Abstract: The objective was to demonstrate that the pH dependent charges are specific change sites for radiocesium.Clay minerals occurrence in superficial samples of eight tropical soils was analyzed by X-Ray difratometry. Thevariation of superficial charge of these soils were quantify by potentiometric titration in a range from 3 to 8 pH values.The results of radiocesium interception potential showed the presence of specific sites of adsorption of thisradionuclide for all the soils. The variation of radiocesium adsorption for all soils was quantified in a pH definedrange. The increase on the pH values caused increase on the radiocesium adsorption by the soils and a consequentdecrease in the radiocesium activity in the equilibrium solution. The soil with predominance of the 2:1 clay mineralsshowed higher radiocesium adsorption than the soils with 1:1 clay minerals or iron and aluminum oxides. The increaseon the negative charge in consequence of pH increase caused increase on radiocesium adsorption. The correctionof soil acidity with lime by increasing the specific sites charge for radiocesium and decreasing the radionuclideactivity in soil solution may cause decrease on the transference of radiocesium from soil to plant.Keywords: radiocesium, 137Cs, radioecology, tropical soil, sorption.File: E08_125.pdf

ESTUDO DOS COMPORTAMENTOS REOLÓGICOS DAS DISPERSÕES IRRADIADAS DOS CASEINATOS DECÁLCIO E DE SÓDIO

Susy Frey Sabato

Abstract: Milk isolated proteins has gained a crescent commercial interest due to functional properties allied toexcellent nutritional value. These properties could be improved when some treatments are applied, such as gamma-irradiation, combined or not with plasticizers. In the current work, protein solutions (calcium and sodium caseinates)were mixed with glycerol (GRAS). The mixtures (8%protein base), at the ratios 1:1 and 2:1 (protein: glycerol) weresubmitted to gamma-irradiation (60Co), in the doses 0kGy, 5kGy, 15kGy and 25kGy, and the rheological behaviorwas studied. The irradiation was in a 60Co source, model Gammacell 220 (AECL), with dose ratio 8.2kGy/h. Theviscosity measurements were made in a Brookfield, model LV-DVIII, splindle SC4-18 and SC4-31, accordingmethodology described previously, at temperature 10.0ºC ± 0,1ºC, using a Neslab water bath. As irradiation doseincreases, the viscosity measurements decrease significantly (p<0.05) for calcium/glycerol solution. Themeasurements for sodium/glycerol mixtures remained constant as dose irradiation increases, with a slightaugmentation at 5kGy.Keywords: Rheology, Gamma-irradiation, CaseinatesFile: E08_128.pdf



inac2002VI ENAN

AgricultureDETERMINAÇÃO DA CURVA DE RETENÇÃO DA ÁGUA NO SOLO COM AUXILIO DA TRANSMISSÃO DE RAIOS

GAMA

Luiz F. Pires; Osny O. S. Bacchi

Abstract: The soil water retention curve relates the soil water matric potential (ψm) and the soil moisture (θ). When nosignificant changes occur in soil structure, the water retention curve can be considered as a soil physical characteristic.This article presents a new procedure for soil water retention curve evaluation using gamma-ray beam attenuationas an auxiliary technique for soil moisture determination. The radioactive source used in the experiment was 241Am,and the detector was a 3 in. x 3 in. NaI(Tl) scintillation crystal coupled to a photomultiplier tube. The proposedprocedure avoids the need of frequent sample manipulation as in the case of the conventional method. The soilmoisture can be continuously monitored inside the chamber allowing a more precise judgment of the equilibrium.The time required for the retention curve determination can be significantly reduced in comparison with the traditionalmethod. The results obtained show that the new procedure presents many advantages in relation to the traditionalmethod and that it can be routinely used for soil water retention curve determination.Keywords: soil water retention, gamma attenuation, gamma radiation.File: E08_147.pdf

DETERMINAÇÃO DA RAZÃO ISOTÓPICA δδ13C (‰) DE CERVEJAS CLARA TIPO PILSEN NACIONAL

Alexssandra L. R. M. Rossete, Fabio Lopes, Luiz Antonio Martinelli, José Albertino Bendassolli

Abstract: Beer has been consumed in Brazil since the XIX century. However, at that time, this beverage was importedfrom England, and the first Brazilian breweries just appeared in the of the XX century. Basically, beer is made from:malt of barley, Humulus lupulus, water and yeast. In this work, twenty brands of national beer (Pilsen type), and alsotwo different cereals, barley, a C3 metabolism plant, corn, a C4 plant, were analysed to determine their isotopecomposition δ13C (‰) utilizing a mass spectrometer Delta Plus Finigam and Anca S.L. An aliquot of each samplewas transferred using a capillary of glass to a tin capsule contends a small amount of sorbitol. The isotopecompositions, δ13C, of barley and corn samples determined were -27.2 and -11.5 ‰, respectively. These resultswere used to calculate the equation of mixture model. Considering the beer samples, the δ13C ranged from -18.3 to-23.1 ‰; this result means that the percentage of C3 plant is from 43.3 to 73.9 %. In this manner, it is possible toconcluded that all beer samples has malted cereals (C4 plant), as far as the low values of C3 plants were presentedin these samples as shown through the equation of mixtures model.Keywords: Carbon 13, Isotope Composition, Beer, Stable Isotope, Mass Spectrometer.File: E08_207.pdf

UTILIZAÇÃO DO ENXOFRE APLICADO AO SOLO PELA SOJA, AVALIADO COM AS TÉCNICAS

ISOTÓPICAS: 34S (ESTÁVEL) E 35S (RADIOATIVO)

Gleuber Mariano Teixeira, Paulo C. O. Trivelin, José A. Bendassolli, Takashi Muraoka, Glauber J. C. Gava

Abstract: The isotope technique is very important in soil fertility studies for the evaluation of sulfur utilization by plantsfrom source applied to the soils. The objectives of this work were evaluate and compare the percentage of sulfur inaerial part of the soybean plants (Glycine max (L) Merrill) derived from the fertilizer - Sdff(%) -, by using: 34S stable and35S radioactive isotopes. The experiment was carried out under greenhouse conditions at CENA/USP, Piracicaba-SP, Brazil. using a random design. The treatments were: control, enriched 34S, depleted 34S and radioactive sulfur -35S , established in two types of soils, clay and sandy, with four replications. The Sdff (%) on sandy soil was larger thanat clay one, indicating smaller availability of sulfur in the former. The Sdff values for sandy soil were: radioactive 35S:68.6%, depleted 34S: 61.3% and enriched 34S: 59.5%. The results on clay soil showed for treatments radioactive 35S,depleted 34S and enriched 34S values of 45.3, 42.4 and 35.8% respectively. The results indicated the importance ofusing tracer for this kind of evaluation. An other finding was the low mineralization of SO4

-2 in the tested soils, especiallyin sandy one.Keywords: Soybean, stable isotope, radioactive isotope, sulfur utilizationFile: E08_264.pdf



inac2002VI ENAN

AgricultureMEDIDA DA POROSIDADE NO SOLO TRe ( TERRA ROXA ESTRUTURADA ) UTILIZANDO A TÉCNICA DE

TRANSMISSÃO DE RAIOS GAMA

Elizabeth Cristina S. da Costa, Wilson Roberto Dejato da Rocha, Ricardo M. de Oliveira, Luzeli Moreira da Silva,Anderson Camargo Moreira, Otávio Portezan , Carlos Roberto Appoloni, Melayne Martins Coimbra.

Abstract: The soil structure defines the particle arrangement which in turn largely determines the pore size distribution.In this work, we present the measurements of total, macro and microporosity for TRe soil with clayey texture. Soilsamples were collected from a trench located at University of Londrina. The deformed and underformed soil sampleswere collected from soil surface down to the depth of 0,50m in 0,10m intervals and separated into six aggregate sizeclasses: 0.053; 0.125; 0.30; 0.71; 2 e 4mm. We also prepared samples mixing different size classes, like as: (4+0.125),(2+0.125), (4+2+0.71), (4+2+0.30) e (4+0.30+0.125)mm. Measurements of particle density and aggregate bulk densityusing conventional method were performed to all depths. The linear soil attenuation coefficients and aggregate soilattenuation coefficients were measured with gamma-ray transmission system using an 241Am (59,53 keV and 100mCi) radiation source, a (2 x 2) in NaI scintillation detector, cylindric collimators (2mm diameter to the source and5mm diameter to the detector) and gamma spectrometry standard electronics, connected to a multichannel. Theobtained results for total, macro and microporosity are in a good agreement with the ones using the conventionmethod, showing the applicability of the gamma-ray transmission method.Keywords: soil porosity, total porosity, gamma-ray attenuation.File: E08_320.pdf

ABSORÇÃO DE 65Zn PELAS FOLHAS DE LARANJEIRA E SUA TRANSLOCAÇÃO NA PLANTA

Rodrigo Marcelli Boaretto , Antonio Enedi Boaretto, Takashi Muraoka, Virgílio Franco do Nascimento Filho,Francisco de Assis Alves Mourão Filho

Abstract: Zinc deficiency is common in Brazilian citrus orchards. The objective of the experiment was to study the Znabsorption from different sources (ZnSO4, ZnCl2, Zn-EDTA and Zn-lignosulfate) by orange leaves and transport of theleaf absorbed Zn to the other parts of the plant. Orange plants were grown in greenhouse and some of their leavesreceived solution with a Zn concentration of 0.07%. The fertilizer solutions were labeled with 65Zn (0,6 KBq g -1). After3, 6, 12, 24 hours and 2, 5, 15, 30, 60, 120 days from Zn application to the leaves, the plants were harvested. Theplants that received the Zn solution were separated in different parts. The 65Zn activity of the samples were determinedby monochannel gama spectrometry. The results showed that the foliar fertilization increased the leaf Zn concentration,the chloride was more efficient Zn source than sulfate, but only a small portion (less than 5 µg in 30 days) of foliarapplied 65Zn was translocated to other plant parts, independent of the Zn source.Keywords: citrus, zinc, foliar fertilization, absorption and MobilityFile: E08_151.pdf

ESTUDO DE FITOPATOLOGIAS ATRAVÉS DA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO EMENERGIA

Pedro Henrique Arruda Aragão; Eduardo Di Mauro; Natasha Midori Suguihiro; Luís Gustavo de Lázaro Rampazo;Maurício Antonio C de Melo; Andréa Paesano Junior e Virgílio do Franco Nascimento Filho

Abstract: In this paper energy dispersive X-ray fluorescence has been used to study two phytopathology “sooty moulds”and “citrus cancro” in olive trees, orange trees, lemon trees, etc. Energy dispersive X-ray fluorescence was used toanalyse leaves samples of these trees. We have studied samples including leaves with and without infection by sootymoulds and citrus cancro. A correlation among elements of Fe and Ca has been observed. In the case of infectedleaves a significant increasing in Fe concentration and decreasing in Ca concentration has been detected. Thiscorrelation is a pattern of all methods using in the paper. The high concentration of Fe in the infected leaves makesuse the EPR and Mössbauer spectroscopes. We determined and concluded that the state of oxidation of the Fe isthe Fe+3.Keywords: phytopathology, sooty moulds, citrus cancro, olive trees, orange trees.File: E08_537.pdf



inac2002VI ENAN

AgriculturePOTENCIAL RADIOPROTETOR DO ÁCIDO ASCÓRBICO SOBRE A CARRAGENANA UTILIZADA COMO ADITIVO

ALIMENTÍCIO

Antonio João Aliste & Nélida Lúcia del Mastro

Abstract: Carrageenans are a group of natural carbohydrates that are present in the structure of certain varieties ofred algae (Rhodophycea). They are used in emulsions, for syneresis control and to grow up, to promote adhesivenessand dispersion. In the industry of foods they can be used for instance, as thickness and gelling agents, alone ortogether with other additives. The processing of foods by radiation is increasing considerably, because the efficiencyof the process in the industrial decontamination of products. The objective of this work was to study the action of theascorbic acid as potential radioprotector of the carrageenan against 60Co gamma radiation effects, using the viscosityas parameter. Samples of commercial carrageenan dissolved at 1,0% were irradiated in the presence or not ofascorbic acid, with doses of 0.0kGy; 1.0kGy; 2.5kGy; 5.0kGy and 10.0kGy. After the irradiation the relationships viscosity/dose were established for the temperature of 60ºC. For the dose of 10.0kGy a better protecting effect of the ascorbicacid on the carrageenan was seen. The implications of the use of this antioxidant is discussed as a form of minimizingthe effect of the radiation in irradiated foodsKeywords: carrageenan, ascorbic acid, radioprotector, viscosity, and ionizing radiation.File: E08_293.pdf

EFEITO DA UMIDADE DO SOLO NA TAXA BRUTA DE MINERALIZAÇÃO DO NITROGÊNIO

Glauber J. C. Gava, Paulo C. O. Trivelin, André Cesar Vitti, Gleuber M. Teixeira

Abstract: The soil moisture has a significant effect in the rates of N mineralization, being observed large values whenthe moisture is close to the Field Capacity. This work aimed to evaluated the influence of the soil moisture in thegross rates of N mineralization in a TRE clay soil. It was sampled cores of soil, with pvc rings. A randomized designwith five treatments and four replications was used: T1- constant soil moisture of 9% (w/w; water mass for soil mass);T2 – constant soil moisture of 14% (w/w); T3 – constant soil moisture of 28% (w/w); T3 – constant soil moisture of19% (m/m); T4 – constant soil moisture of 23% (w/w) and T5 - moisture of 28% (w/w). The gross rates of Nmineralization for time period of 0-5 days were 0,31; 1,81; 1,66; 3,19 and 2,04 mg kg –1 day-1 and for the interval of timeof 0-10 days were 0,33; 0,96, 0,96, 0,94 and 1,17 mg kg –1 day-1, respectively, for the treatments T1; T2; T3; T4 andT5. It was verified that the gross N mineralization was influenced by water content of soil.Keywords: nitrogen, mineralization, soil moisture, isotopic techniquesFile: E08_266.pdf

USO DA RADIAÇÃO GAMA NO ENVELHECIMENTO DA AGUARDENTE DE CANA DE AÇÚCAR

Júlio M. M. Walder, Marta H. F. Spoto; Fernando V. Novaes; André R. Alcarde

Abstract: The objective of this work was to verify the influence of gamma radiation on the aging of sugarcane spirit.Samples of sugarcane spirit (cachaça) were irradiated in a Gammabeam Cobalt-60 source with doses between 0(control) and 300Gy, with 50Gy increasing. The irradiated samples were offered to 5 expert judges for sensorial testsusing the comparation: irradiated versus control. The chemical volatile components of the irradiated spirit weredetermined using a gas chromatograph. Sensorial tests elected the dose of 150Gy as the best for sugarcane spiritirradiation based on its flavour and bouquet. These sensorial characteristics were due to the chemical changesobserved in esters, aldehydes and higher alcohol’s concentrations. The samples irradiated with 250 and 300Gydeveloped a bitter taste and an “oxydized” flavour. A second experiment was carried out using single and twice-distilled sugarcane spirit, normal aged in oak barrels or not, or added with oak extract. Samples were irradiated withthe dose of 150Gy and scored by the same sensorial analysis methodology. All irradiated samples had their flavourimproved. The irradiation of the non-maturated twice-distilled sugarcane spirit produced a flavour compared to spiritsmaturated during one year of normal aging.Keywords: gamma radiation, sugar cane spirit, agingFile: E08_777.pdf



inac2002VI ENAN

AgricultureESTABILIDADE DE COMPOSTOS FENÓLICOS DA PRÓPOLIS PROCESSADA POR RADIAÇÃO IONIZANTE

Andréa H. Matsuda e Nélida L. del Mastro

Abstract: Propolis is the generic term of a resin of different colors and consistency collected by bees, Apis mellifera,from diverse parts of plants, buds and resinous exudates. It possesses antibacterial , antifugal and antiviral propertiesand many other biological activities such as antiinflammatory, antiulcer, local anaesthetic, antitumor, etc. The aim ofthis work is to study the effect of 60Co ionizing radiation on the stability of phenolic compounds of propolis.Keywords: propolis, flavonoids, phenolic compounds, ionizing radiationFile: E08_140.pdf

DISTRIBUIÇÃO VERTICAL DE 137Cs EM SOLOS DE MATA VIRGEM DA REGIÃO DE LONDRINA (PARANÁ)

Avacir Casanova Andrello, Carlos Roberto Appoloni, Virgílio Franco do Nascimento Filho

Abstract: The 137Cs depth distribution has been studied in several areas in the world and its knowledge is very importantto verify its behavior in the soil matrix. The form of 137Cs depth distribution more observed in an undisturbed soil it isexponential type. In this work, the study of 137Cs depth distribution was accomplished at three native forests and acoffee yard, built before the 137Cs fallout, in the region of Londrina (Paraná). The sampling was conducted in 1 cm, 2cm, 4 cm and 5 cm increment depth. The 137Cs inventory observed for the forests was 248 Bq m-2 (Mata1), 338 Bq m -

2 (Mata2) and 325 Bq m-2 (MataUEL). No 137Cs activity was detected in the coffee yard. The 137Cs depth distribution forthe three forests presented the exponential type. For the soil class of the forests, 137Cs adsorbed on the soil particlescan be considered fixed or slowly exchangeable.Keywords: erosion, undisturbed soil, cesium-137 distributionFile: E08_382.pdf

EFEITO DA RADIAÇÃO IONIZANTE DE 60Co SOBRE PROPRIEDADES REOLÓGICAS DA GOMA GUAR ECARBOXIMETILCELULOSE PARA USO NA INDÚSTRIA ALIMENTÍCIA

Fernando Fabris Vieira e Nélida Lucia Del Mastro

Abstract: Hydrosoluble polysaccharides or gums are long chain polymers that dissolve or disperse in water. Whenadded to foods, they change rheological characteristics, stabilize emulsions, promote particle suspension, controlcrystallization and inhibit sineresis of processed foods. Guar gum is an hydrosoluble polysaccharide obtained fromthe seed of Cyamopsis tetragonolobus. Carboximetylcellulose (CMC) is an homopolisaccharide prepared by thetreatment of alkaline cellulose with sodium monochloroacetate. This work presents the results of the study of radiationeffects on the viscosity of guar gum and CMC used for the food industry when irradiated with 60Co ionizing radiation.Keywords: Guar gum, carboximethycellulose, ionizing radiation, viscosity.File: E08_145.pdf

LEITE DE CABRA IRRADIADO COM RAIOS GAMA: ANÁLISE SENSORIAL COMPARATIVA COM O LEITE DE CABRAPASTEURIZADO

Maria Sylvia de C.C. do Amaral Gurgel, Rachel E. Domarco e Marta H. F. Spoto

Abstract: Goat milk consumption has increased in the last years, due to its better digestibility and for constituting agood alternative to cow milk for intolerant people. Brazil has over 10 millions goats, mainly in the Northeast area.Considering that it is very important to increase the shelf-life for this product, this work was done to test the gamma-radiation as a preservation method, evaluating acceptability by sensorial analysis compared with pasteurized milk.The goat milk was bought in the Animal Production Depart-ment/ESALQ/USP, Piracicaba, and irradiated with 3,5kGy in the Food Irradiation Laboratory/CENA/USP, using a cobalt-60 irradiator, type Gammabeam-650, from Nordion,Canada. After irradiation, the samples were maintained under refrigeration at 5 °C and submitted to sensorial analysisat 1st, 7th e 15th days by 30 untrained tasters. The results indicated, by Tukey test, a significant preference for thepasteurized milk in comparison to the irradiated one, because a hard caprine flavor was developed by the irradiation.Keywords: irradiation, goat milk, milk, gamma-rays, cobalt-60, food preservation.File: E08_900.pdf



inac2002VI ENAN

AgricultureRADIAÇÃO GAMA NA CONSERVAÇÃO DE PUPUNHA (Bactris gasipaes HBK) MINIMAMENTE PROCESSADA

Marta H. F. Spoto; Júlio M. M. Walder; Rachel E. Domarco

Abstract:The aim of this work was to evaluate the influence of gamma radiation on microorganisms and enzimaticdarkness reaction of the minimally processed hart of palm pupunha (Bactris gasipaes HBK). The pupunha stalkscame from Piraju county, State of São Paulo and at CENA/USP laboratory they were peeled and cut in small stalksinto a solution of sodium chloride (2.5%) plus citric acid (0.8%). After packing in polyethylene bags the samples wereirradiated with doses of 6, 8 and 10 kGy. The samples were storage for 14 days period under refrigeration (5ºC), withanalysis at the 1st, 7th and 14th day. No microorganism (bacteria, fungi or yeast) were detect in the irradiated samplesduring the the storage period. Through the a* e b* values the control sample showed a yellow-greenish color and theirradiated samples presented almost white. The pH values kept stable and the ratio values diminished for all treatmentsduring the storage period.Keywords: palm of heart, pupunha, irradiation, microorganism, qualityFile: E08_776.pdf

MINERALIZAÇÃO BRUTA DO NITROGÊNIO EM SOLOS DE ALTA FERTILIDADE.

EFEITO DO MANEJO E A PROFUNDIDADE DE AMOSTRAGEM

C. Videla, P.C. Trivelín, H. Echeverría, G. Studdert, J.A. Bendassolli

Abstract: A greenhouse experiment was carried out with the aim of determining the effect of different tillage systemsand soil depths on gross mineralization rates (TMB). The studied soil was a Typic Argiudoll – Petrocalcic Paleudollcomplex, under: a) conventional tillage for 23 yr. (PC treatment), b) no tillage for 6 yr. (PD treatment), and c) pasturefor 4 yr. (P treatment) and 0-10 and 10-20 sampling depths. TMB were estimated through 15N dilution technique, byaddition of labelled (NH4)2SO4 (10% 15N at. exc.) at days 0, 7, 21 and 35. Twenty-four and 72 h after each addition, Ninorganic content and 15N enrichment of inorganic were determined on 2M KCl extracts in order to estimate theTMB. At 0-10 cm depth, TMB increase until day 21 and decreased afterwards. There were no significant differencesbetween tillage treatments. At 10-20 cm soil depth PC and PD TMB were constant during the whole analysed period.P treatment had a quadratic adjust, with negative linear component. P TMB was lower than PC and PD until day 21but afterwards it was significantly higher. These results suggest the presence in the pasture of an organic matterfraction, which mineralizes lately but with a high rate.Keywords: Gross mineralization rates, Argiudoll soils, tillage systems.File: E08_775.pdf

RECUPERAÇÃO DO NITROGÊNIO (15N) DO AMÔNIO E DO NITRATO APLICADO AO SOLO PELA CANA-DE-AÇÚCAR

André Cesar Vitti, Paulo Cesar. O.Trivelin, Glauber J.C. Gava, Claudimir Pedro Penatti, José Anderson Forti

Abstract: An experiment was developed in a field aimed to compare the recovery of the ammonium-15N and nitrate-15N by the sugar cane plants harvested mechanically without burning. A rate of 70 kg ha-1 of N was applied as ammoniumnitrate, in strip, onto cultural residues. Two lineal meters micropots were used. They received the fertilizer labeledwith 15N. Two treatments were established using labeled ammonium (NH4

+-15N) or nitrate (NO3--15N). Two months

after fertilization, four samples of the aerial part (two lineal meters) for treatment in the portions that didn’t receive thefertilizer-15N, were taken in order to evaluated the fitomass production (Mg ha-1) and N-total accumulated (kg ha-1).This evaluation was repeated every two months up to complete five of them. Two leaves (leaves with 3° visibleauricle) were collected from plants that were in a middle of the micropots (15N) and in corresponding positions in theadjacent rows, to evaluated the concentration of 15N. There was a larger absorption of the nitrate-N (30.5%) than ofthe ammonium-N (21.2%). On the other hand, in the soil the results showed larger ammonium-15N residual effectconcentration, probably due to microorganism immobilization.Keywords: nitrogen tracer, balance, leaves +3, residual effect, 15N-NH4

+ , 15N-NO3, sugar caneFile: E08_306.pdf



inac2002VI ENAN

AgricultureEVALUATION OF THE 2-THIOBARBITURIC ACID METHOD FOR THE MEASUREMENT OF LIPID OXIDATION IN

MECHANICALLY DEBONED GAMMA IRRADIATED CHICKEN MEAT

Heliana de Azevedo Gomes, Edir Nepomuceno da Silva,Marcos Roberto Lopes do Nascimento and Henrique Takuji Fukuma

Abstract: This study evaluated the 2-thiobarbituric acid (TBA) method for the measurement of lipid oxidation in samplesof mechanically deboned chicken meat (MDCM), both gamma irradiated with doses of 4.0 and 5.0 kGy and non-irradiated. The values for the percent recuperation of 1,1,3,3-tetraethoxy-propane (TEP) and for the conversion factorK for the samples irradiated with doses of 4.0 and 5.0 kGy and the non-irradiated samples were, respectively, 88.6%,90.0% and 88.6% for the former and 4.98, 4.91 and 4.98 for K. Comparing the results obtained for the samples ofMDCM irradiated with doses of 4.0 and 5.0 kGy and the non-irradiated samples, as evaluated by the TBA distillationmethod, it was observed that the values for percent recuperation of TEP, the values for K and the spectral curves, asalso the linear equations of the standard curves for the distillation of malonaldehyde, were similar for all the samples,no singular interference on the TBA test due to the process of irradiating the MDCM, being detected.Keywords: Mechanically deboned chicken meat, 2-thiobarbituric acid, food irradiation, lipidic oxidationFile: E08_400.pdf

VARIABILIDADE ESPACIAL DO "FALLOUT" DE 137Cs ENTRE ÁREAS DE REFERÊNCIA.I. MUNICÍPIOS DE PIRACICABA, NOVA ODESSA E CAMPINAS

Vladia Correchel, Osny Oliveira Santos Bacchi, Isabella Clerici De Maria e Gerd Sparovek

Abstract: The 137Cs fallout redistribution analysis has been widely used in the last twenty years to investigate the ratesof soil erosion and sediment deposition. In this kind of application the knowledge of the local total 137Cs fallout is ofgreat importance. Usually, this value is evaluated by the analysis of 137Cs activity in soil profiles from flat non-erodedsites called reference sites. This paper reports preliminary results obtained from an investigation of the spatial variabilityof 137Cs inventories at four reference sites located in three places located around Piracicaba Brazil. Higher variabilitywas found in large scale, when compared to the total average from the three places. The so called “random spatialvariability” or small scale variability, in all selected reference site, can be considered small. Considering that the totalannual precipitation at the three places are very similar, we concluded that the high variability detected in this scale isan indication that other important factors than precipitation affected the total 137Cs fallout. The results give also anindication that erosion studies should use reference sites located close to the study area.Keywords: soil erosion, sediment transport, soil lossFile: E08_322.pdf

EVAPORAÇÃO DA ÁGUA DE UM SOLO SEM VEGETAÇÃO NO BREJO PARAIBANO

José Romualdo de Sousa Lima, Antonio Celso D. Antonino, Carlos A. Brayner de O. Lira,Ivandro de França da Silva, André Maciel Netto e Jeffson Cavalcante de Souza

Abstract: Measurements were accomplished in a 4,0 ha area in Centro de Ciências Agrárias, UFPB, Areia City, ParaibaState, Brazil (6o 58' S, 35o 41' W and 645 m), aiming to determine water evaporation from bare soil, by energy and waterbalance approaches. Rain gauge, net radiometer, pyranometer and sensor for measuring the temperature and therelative humidity of the air and the speed of the wind, in two levels above the soil surface, were used to solve the energybalance equations. In the soil, two places were fitted with instruments, each one with two thermal probes, installedhorizontally in the depths z1 = 2,0 cm and z2 = 8,0 cm, and a heat flux plate, for the measurement of the heat flux in thesoil, the z1 = 5,0 cm. The measured data were stored every 30 minutes in a data logger. For the calculation of the waterbalance, three tensio-neutronics sites were installed, containing: an access tube for neutrons probe and eighttensiometers. The values of soil evaporation obtained by water balance were lower than obtained by energy balancebecause of the variability of the water balance terms.Keywords: evaporation, mass and energy balances, Bowen ratio method, neutron probe.File: E08_391.pdf



inac2002VI ENAN

ABSORÇÃO, TRANSLOCAÇÃO E REDISTRIBUIÇÃO DO NITROGÊNIO (15N) EM LARANJEIRA

Tatiele Anete Bergamo Fenilli, Antonio Enedi Boaretto, José Albertino Bendassolli,Takashi Muraoka e Paulo César Ocheuze Trivelin

Abstract: The objective was to evaluate the absorption of 15N from nutrient solution by young orange trees and thetranslocation and the redistribution of the absorbed N. The treatments were constituted by four periods of 15N labelling(spring, summer, autumn and winter). In the first treatment, the young orange trees received 15N in the nutrient solutionduring the spring and five replicates of the plants were picked at the end of the period. The new part, which wasdeveloped during the 15N labelling period, was separated from the other part (old part) in branch and leaf, and also inflower and fruit when they were. The old part was separated in leaf, stem and root. This same procedure was followedin the other treatments. The total N and the isotope ratios 15N/14N were performed by mass spectrometry.The major part of absorbed N during the spring and summer was translocated to the new part of the orange trees, butin autumn and winter the absorbed N was concentrated in the old plant part. The redistribution of N from of old plantparts was more intensive during the autumn and winter.Keywords: 15N, citrus, nitrogen absorption, N translocation, nutrient solution.File: E08_139.pdf

ANÁLISE VISUAL DOS EFEITOS DA RADIAÇÃO GAMA ASSOCIADA À ATMOSFERA MODIFICADA NOARMAZENAMENTO DO LIMÃO 'TAHITI' - ENSAIO PRELIMINAR

Josenilda Maria da Silva e Rachel Elisabeth Domarco

Abstract: Fruits of selected lime in the stage of complet maturation, dark green skin, smooth thickness and free ofmechanical damages, had been take to the Laboratory of Irradiação de Alimentos e Radioentomologia, CENA/USP,with objective to evaluate the effect of the radiation gamma on the external appearance when associate with packing inpolystyrene bag, with and whitout air. The packing process was done before and also after irradiation. A cobalt-60source was used to treated the fruits with doses of 0, 0.5 and 0.75 kGy. The storage was held in BOD chamber withconstant temperature of 27oC during 3 and 6 days. The association of the radiation with polystyrene bag, wiht orwithout application of vacuum, did not prevent the effect of the radiation doses, causing occurrence of dark spots in theskine. The vacuum application in the package resulted in lesser damage in the skin. Polystyrene bag, with and withoutvacuum application, kept the green coloration and the brightness of the skin during all period of storage, with loss ofweight varying from 0.22 to 0.66% of the original weigth.Keywords: lime ‘Tahiti’, gamma radiation, modified atmosphere, storage.File: E08_303.pdf

TESTE DO COMETA NA DETECÇÃO DE ALHO IRRADIADO

Anna Lucia C.H. Villavicencio; Nélida Simona Marín-Huachaca; Maria Fernanda Romanelli and Henry Delincée

Abstract: The increased claim for fresh produce has forced a consensus between nations to pay more attention tothe phytosanitary regulations. Inhibition of sprouting of bulbs and tubers by applying ionising radiation is authorised bythe National Food Codes in Brazil. The availability of methods for detection of irradiated food will contribute to increaseconsumers’ confidence. A quick and simple screening test to indicate whether a food product has been irradiated ornot was utilised in this study. The DNA comet assay was applied to verify whether garlic imported from China hadbeen irradiated or not. This test has already been adopted as a European Standard (EN 13784), for detection ofirradiated food. Non-irradiated control samples of garlic and garlic treated with maleic hydrazide were comparedwith garlic samples irradiated in our department. The unirradiated samples exhibited only limited DNA migration. Ifsamples were irradiated, an increased DNA fragmentation was observed which permitted the discrimination betweennon-irradiated and irradiated samples. Since the garlic samples from China showed only very limited DNAfragmentation, they were deemed non-irradiated. Thus, this simple screening test was shown to be successful foridentification of an irradiation treatment.Keywords: food irradiation; garlic; comet assay; DNAFile: E08_334.pdf

Agriculture



inac2002VI ENAN

AgricultureRUMEN MICROBIAL GROWTH ESTIMATION USING IN VITRO RADIOPHOSPHOROUS INCORPORATION

TECHNIQUE

Ives Cláudio da Silva Bueno, Mariana de Carvalho Machado, Sergio Lucio Salomon Cabral Filho,Sarita Priscila Gobbo, Dorinha Miriam Silber Schmidt Vitti and Adibe Luiz Abdalla

Abstract: Rumen microorganisms are able to transform low biological value nitrogen of feedstuff into high qualityprotein. To determine how much microbial protein that process forms, radiomarkers can be used. Radiophosphoroushas been used to mark microbial protein, as element P is present in all rumen microorganisms (as phospholipids)and the P:N ratio of rumen biomass is quite constant. The aim of this work was to estimate microbial synthesis fromfeedstuff commonly used in ruminant nutrition in Brazil. Tested feeds were fresh alfalfa, raw sugarcane bagasse, ricehulls, rice meal, soybean meal, wheat meal, Tifton hay, leucaena, dehydrated citrus pulp, wet brewers’ grains andcottonseed meal. 32P-labelled phosphate solution was used as marker for microbial protein. Results showed thediversity of feeds by distinct quantities of nitrogen incorporated into microbial mass. Low nutrient availability feeds(sugarcane bagasse and rice hulls) promoted the lowest values of incorporated nitrogen. Nitrogen incorporationshowed positive relationship (r=0.56; P=0.06) with the rate of degradation and negative relationship (r=-0.59; P<0.05)with fiber content of feeds. The results highlight that easier fermentable feeds (higher rates of degradation) and/orwith lower fiber contents promote a more efficient microbial growth and better performance for the host animal.Keywords: microbial synthesis, ruminant, animal nutrition, animal scienceFile: E08_323.pdf

FIXAÇÃO BIOLÓGICA DO NITROGÊNIO EM ESTIRPES DE RIZOBIANAS IRRADIADAS

Rebeka Alves Caribé e Waldeciro Colaço

Abstract: Native Rhizobium sp. and Bradyrhizobium sp. isolates from the root nodules of bean and cowpea wereselected. Six isolates, and the SEMIA 4077 (R. leguminosarum bv. phaseolus) and SEMIA 6145 (Bradyrhizobium sp)strains used as references, were irradiated with ultraviolet light (R-uv) and gamma rays (R-g). The D37 values for therhizobial strain SEMIA 4077 were 43 J.m-2 (UV) and 32 Gy (R-g) and for the SEMIA 6145 were 45 J.m-2 (UV) and35Gy (R-g). Through a greenhouse experiment the irradiated isolates were inoculated on bean (P. vulgaris L., cv.Princesa) and on cowpea [Vigna unguiculata, (L.) Walp, cv. IPA-206] seedlings, in an attempt to evaluate the sensitivityof the host plants, and possible effects on their nodulation. Differences in responses to nodulation due to the effect ofirradiation were observed for the isolates tested. Significantly differences were observed only for nodules dry matteryield of the IPA-206 cultivar. Gamma irradiated treatmens were statistically superior to treatments with ultraviolet lightin relation to control without radiation.Keywords: irradiation, Rhizobium, Bradyrhizobium, cowpea, nodulationFile: E08_646.pdf

RADIOINMUNOENSAYO PARA PROGESTERONA EN LECHE BOVINA

Miriam Ruiz, Nancy Figueredo, Sonia Castillo, Luis Pizarro

Abstract: A system for the measurement of progesterone in bovine milk by radioimmunoassay has been developedand validated. This assay includes an iodine tracer purificated by HPLC, the standard prepared in fat-free milk andan antibody anti-progesterone combined with second antibody. The detection limit of the assay is at 0.2 nmol/Lcalculated from the maximum binding menus two standard deviations and the precision is satisfactory. In the recoveryassay was used 4 milk different samples and the result was 98% of recuperation. The progesterone was determinatein milk samples from post-partum animals taking samples three times per week for 40 days. The assay is simple,rapid and possibility the progesterone measurement without sample dilution, distinguish the cyclic changes of thishormone that reflect the ovarian activity in the animals.Keywords: progesterone, radioimmunoassay, bovine milk.File: E08_250.pdf



inac2002VI ENAN

INCORPORAÇÃO IN VITRO DO RADIOFÓSFORO PELOS MICRORGANISMOS RUMINAIS EM DIFERENTESPROPORÇÕES DO INÓCULO

Sergio Lucio Salomon Cabral Filho, Sarita Pricila Gobbo, Ives Cláudio da Silva Bueno, Mariana de CarvalhoMachado, Eduardo Fernando Nozella and Adibe Luiz Abdalla

Abstract: Estimation of rumen microbial population activity is an important parameter on feed evaluation. Increaseson microbial population have a positive correlation with increases on protein supply for ruminant animal. In vitromethodology is based on relationships between 32P and N incorporation for the rumen microorganisms. The objectiveof this paper was to test different types of inoculum in 32P microbial incorporation technique. Treatments were twodifferent types of inoculum (rumen content), where one of them has only liquid phase and the other has 50% liquidand 50% solid phase. Five different feedstuffs were used as substrate (corn grain, maize silage, soybean meal, alfalfahay and Panicum grass). The incubation was done in plastics tubes containing 1 g of substrate, buffer solution (4ml),16ml of inoculum and 25µl of 32P-labelled phosphate solution (3700 Bq). Nitrogen incorporation (Ni) into microbialmass was between 2,9 to 13,6 mg of Ni. g DM -1. Treatments did not differ statistical (P>0,05), but treatments andsubstrate interaction was significant (P<0,05) for Panicum grass. Results did not demonstrated advantage to usesolid phase in 32P technique, however significant interaction suggest more studies with roughages.Keywords: ruminant, feed evaluation, in vitro techniquesFile: E08_324.pdf

ACOMPANHAMENTO DO CRESCIMENTO DE RAÍZES DE FEIJÃO UTILIZANDO-SE A TÉCNICA NEUTRONGRÁFICA

Selma Parente de Jesus e Verginia Reis Crispim

Abstract: Agricultural practices frequently cause the development of a soil compacted layer below the surface. Thesecompacted layers restrict the root penetration into deeper layers of soil, in search for water. It is proposed to monitor,using Non Destructive Test (NDT), the roots growth due to the planting of standard seeds in different agriculturalsoils, in function of their compactness and humidity. It will be used the neutrons beams derived from an irradiationchannel called J-9 of the Reactor Argonauta (IEN/CNEN), so that the neutron radiographics images of the soil-plantsystem can be obtained. Each root can be evaluated for its ability to penetrate into compacted soil layers; this factwould mean an optimization of agricultural harvests.Keywords: neutron radiography, soil compactness, humidity, roots growth.File: E08_022.pdf

GAMA RADIOSSENSITIVIDADE EM FEIJOEIRO COMUM E CAUPI

Sandra da Silva Guimarães e Waldeciro Colaço

Abstract: An indispensable step in mutation induction experiments is the determination of the sensitivity to mutagensto be used. Taking this into consideration the radiosensitivity of bean cultivars Carioca, Princesa (P. vulgaris L.), andIPA-206 [V. unguiculata (L.) Walp] to gamma rays from a 60Co source was evaluated. Sets of seeds (40 seeds/sample) were irradiated with 100, 150, 200, 250 Gy, and compared to a control without irradiation (0 Gy), undergreenhouse conditions. Bean and cowpea seeds were respectively inoculated with a suspension of Rhizobium (SEMIA-4077) and Bradyrhizobium (SEMIA-6145) strains. The radiosensitivity was evaluated through seedling height reductiondetermined at 15 days after emergence (15-DAE), and also through dry matter yield of above-ground part and rootnodules at 40-DAE. Seedling height was significantly reduced with increased dose of radiation in relation to thecontrol. The dose causing reduciton of 50% seedling height for P. vulgaris cultivar Princesa was set up between 150-250 Gy. Cowpea (IPA-206) was less sensitive to radiation than common bean cultivars, considering the dose rangeof radiation studied, and a 75% seedling height reduction was reached in the range of 150-250 Gy. Dry mater yield ofthe above-ground part, root and nodule, were inversely related to the doses. It is recommended a dose range of 300-350 Gy for mutation breeding purposes using the cowpea cultivar (IPA-206).Keywords: gamma-radiosensitivity, bean, cowpea, Rhizobium, BradyrhizobiumFile: E08_649.pdf

Agriculture

2002VI ENAN

inac



BIOLOGYBIOLOGYEE 0909BIOLOGYBIOLOGYEE 0909

BIOLOGYBIOLOGYEE 0909



inac2002VI ENAN

BiologyTAQUIZOÍTOS DE Toxoplasma gondii IRRADIADOS COM 255 Gy INDUZEM DIMINUIÇÃO DE CISTOS E LESÕES

CEREBRAIS, EM CAMUNDONGOS DESAFIADOS COM CISTOS DA CEPA ME-49

Roberto Mitsuyoshi Hiramoto, Andrés Jimenez Galisteo Jr., Nanci do Nascimento & Heitor Franco de Andrade Jr.

Abstract: Toxoplasmosis can cause ocular lesions in normal individuals and several diseases in foetus, HIV infectionand transplants. Toxoplasma gondii has a complex life cicle, involving cats, as the definitive host, and warm bloodspecies, as intermediated hosts. The infection occurs by ingestion of food and water contaminated with infected catfaeces, contaminated milk and cheese or raw and undercook meat of the intermediated hosts. To date, there is nocommercial vaccine of use in humans. In this work, tachyzoites of T. gondii RH strain were irradiated with 255 Gy andinoculated in C57Bl/6j mice (3 doses, biweekly), after mice were challenged with 1, 5, 10, 20 and 25 cysts of ME-49by oral gavage. The lesions and cysts in the brain were analyzed in all mice, after 4-week post infection. The mortalitywas 20% in control mice (ME-49 cysts only) and not one in immunized mice. The number of cysts was high in thecontrol group, but low in immunized 255 Gy mice (n<100). Immunized mice showed less cerebral pathology andnecrosis foci. Ionizing radiation is an important tool in the study toxoplasmosis and vaccine development.Keywords: Toxoplasma gondii, toxoplasmosis and ionizing radiation.File: E09_688.pdf

RADIOIMUNOENSAIO PARA DETERMINAÇÃO DO HORMÔNIO TIREOIDEANO NA PROLE DE RATASHIPOTIREOIDEAS E HIPERTIREOIDEAS

Silveira, Maria F.G.; Danda, Karina P.N.; Luna, Taciana F.; Souza,Grace M.; Catanho, Maria T.J.A.; Bernardo Filho, Mário e Moura, Egberto G.

Abstract: The onset of fetal thyroid function occurs about 17-18 days after conception in the rat. The maternalhypothyroidism or hiperthyroidism which occur during gestation provokes alteration, the hormonal modification in thenewborn rats was analyzed. The hypothyroidism was induced in normal dams, which were being treated for 7 days withmetimazole (in the of 0,03 % in drinking water) before mating. The hyperthyroidism was induced in normal dams, whichwere being treated for 2 days with T 4 (2 µg per 100 g body wt/day) before mating. It was seen that the rat which wasborn from hypothyroic or hyperthyroic dams suffered alteration on its T 4 levels concerning the days 10,20,30 and 60after birth. The administration of metimazole or thyroxine affects the fetal thyroid gland function, causing alteration ofboth T 4 levels, even after the birth, indicating that the maternal hypothyroidism or hiperthyroidism influence on the post-natal life of the rat.Keywords: thyroid hormones, hyperthyroid, hypothyroidFile: E09_312.pdf

THE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRYBONES

J.D.T. Arruda-Neto, A.C. Cestari, G.P. Nogueira, L.E.C. Fonseca, C.B. Zamboni, M. Saiki,M.V. Manso Guevara, V.R. Vanin, A. Deppman, V.P. Likhachev , J. Mesa, O.A.M. Helene, S.A.C. Jorge,

M. N. Martins , A.N.Gouveia, O.Rodriguez , F. Guzmán and F.Garcia

Abstract: Groups of seven days old Cobb broilers were fed with feed doped with uranyl nitrate at a fixed concentrationof 20 ppm-U, and two concentrations of phytase (120 and 180 ppm). Two animals per group were sacrificed weekly upto their adultness. The uranium content in tibia was measured by neutron activation analysis. It was observed that thebiokinetics of U does not change by administration of phytase, but the U concentration in the bones increased by up toa factor of 2, and in a nonexpected periodically time oscillating fashion. Quite surprising too, the concentration ofuranium (µg-U/g-bone) is decreasing all along the animal life spanning period of 14-42 days, meaning that the skeletonmass is growing faster than the corresponding accumulation of uranium is. This last finding is interpreted as a possibleinterplay between two metabolic peculiarities, associated both with U transfer to (uptake), and U removed from (clearence)the bones, repectively.Keywords: uranium, biokinetics, fowl, metabolismFile: E09_411.pdf



inac2002VI ENAN

BiologyDETECÇÃO DE ABERRAÇÕES CROMOSSÔMICAS EM LINHAGEM TUMORAL APÓS IRRADIAÇÃO

Luciana Maria Silva, Consuelo Latorre Fortes-Dias, Ricardo Ferracini, Tarcísio Campos

Abstract: When radioresistant cancerous cells are irradiated at level of few Gys, the interactions may not generatevisible observations in the morfology of the cells or effects so intense such as death after few hours. The changes thatwill be observed depend on the combination of many factors that define the probability of cell surviving in response tothe physical dose applied. Genetic factors may affect the cell response such as the cell sensitivity to irradiation, cancerouscell is studied when irradiated with Co-60 gamma rays. Besides the evaluation of the radiosensitivity of this cells whenesposed to gamma irradiation, possible cromossomic´s aberrations and apoptosis were detected.Keywords: radiosensibility, Double strands breaks (DSB´s), chromosome aberration, apoptoseFile: E09_902.pdf

ACTION OF PHYLLANTHUS NIRURI ON THE HORMONES OF PREGNANT FEMALE RATS

Souza,G.M.L; Bezerra,A. L; Carvalho, E.F.NB; Galdino, M.F. S, Catanho,M.T.J.A.

Abstract: Phyllanthus niruri is used for treatment of renal diseases, among others. This work aims to evaluate theregulation of the thyroid and estrogenic hormones, under the influence of the extract of Phyllanthus niruri in pregnantfemale rats. Wistar rats, after copulation and verification of pregnancy, were divided into groups of 10 rats each andwere administered 0,05-2,5mg/mL of aqueous extract of Phyllanthus niruri, intraperitoneally. All the animals after 14days of treatment, were sacrificed under ether anesthesia, blood was withdrawn by cardiac puncture for attainment ofserum, concentrations of T3, T4, 17β-estradiol, progesterone hormones were determined and macroscopical visualizationof the embryos was evaluated. Those hormones serum levels were evaluated by RIA. The extract altered the serumconcentration of T 4 , and β-1,7 estradiol, which presented an increase of 333,3%and more than 272,8%,respectively,whenrelated to group. It is verified that progesterone is reduced of 82,9%,in related to control group. Probably extract ofPhyllanthus niruri provokes alterations on the somatic-gonadal development, that modifies the corpus luteum fuctionon synthesis and secretion of estrogenic hormones, a reduction in the number of embryos and morphophysiologicaldysfunctions are caused, which leads to miscarriage. Chemical study continues to determinate the structure of theactive principles isolated.Keywords: Phyllanthus niruri, technetium-99m, red blood, cells, plasma proteinsFile: E09_239.pdf

ASSESSMENT OF THE EFFECT OF PHYTIC ACID ON THE LABELING OF BLOOD CELLS AND

PLASMA PROTEINS WITH TECHNETIUM-99m

Guilherme L. Lima-Filho; Rosimeire S. Freitas; Glaydes M.T. Lima; Silvana R. F. Moreno;Maria T.J.A. Catanho, Edson M. Boasquevisque and Mario Bernardo-Filho

Abstract: Blood elements labeled with technetium-99m (99mTc) have been used in various procedures in nuclear medicine.We have investigated if phytic acid (PHY) could alter the labeling of blood elements with 99mTc. Blood was incubatedwith different concentrations of PHY. Stannous chloride and 99mTc, as sodium pertechnetate, were added. Blood wascentrifuged and plasma (P) and blood cell (BC) were isolated. Samples of P and BC were also precipitated withtrichloroacetic acid and centrifuged, and insoluble (IF) and soluble (SF) fractions were separated. The percentages ofradioactivity (%ATI) in BC, IF-P and IF-BC were calculated. The %ATI decreased significantly (p < 0.05) in BC (95.08± 1.94 to 80.68 ± 3.35), in IF-P (74.42 ± 4.50 to 39.94 ± 5.51) and in IF-BC (89.91 ± 3.91 to 79.54 ± 5.42) in presenceof PHY. These results suggest that the chelating property of PHY can modify the labeling of the BC, although othereffects of PHY could be responsible. As PHY is found in many food and it could alter the labeling of blood elements with99mTc with possible undesirable effects, it is relevant to verify the necessity to repeat the examination and to evaluate theincrease of the radiation dose to the patient.Keywords: phytic acid, technetium-99m, red blood cell, plasma proteinsFile: E09_227.pdf



inac2002VI ENAN

BiologyDETERMINAÇÃO DO VALOR D

10 PARA ESCHERICHIA COLI O157:H7 EM DIFERENTES MEIOS DE CULTURA

Sérgio Eduardo M. de Oliveira, Luis Fernando G. Pires e Helio de C. Vital

Abstract: Escherichia coli serum type O157:H7 is a highly pathogenic bacterium. Inside the human body, thatmicroorganism causes a disease that leads to bloody diarrhea, stoppage of kidney functions and clots in the brain.That type of infection has been related to the consumption of different varieties of foods, mainly meat and otherproducts of animal origin. Irradiation is an efficient method for elimination of pathogenic and spoiling microorganismsin foods. Thus, this work investigates the use of gamma irradiation for elimination of Escherichia coli O157:H7. Forthat purpose, inoculated samples in trypticase soy broth and saline solution 0,85% media were exposed to severalgamma radiation doses. Counting the number of surviving bacteria yielded the following D10 values for Escherichiacoli O157:H7: 98±7 Gy, in trypticase soy broth and 49±4 Gy in saline solution 0,85% medium.Keywords: food irradiation, escherichia coli O157 : H7File: E09_524.pdf

ASPECTOS MORFOLÓGICOS DA Leishmania amazonensis SUBMETIDA À AÇÃO DA RADIAÇÃO IONIZANTE

Bonetti, F.C., Hiramoto, R.M., Paiva, B., Andrade Jr, H.F, Nascimento, N.

Abstract: Leishmania amazonensis is a protozoan transmitted by a bite of a sandfly responsible for skin lesions inhuman and other mammalian hosts, being considered one of the most important endemic Public Health disease.Ionizing radiation shown to be an excellent method to kill these parasites, blocking their growth by nucleic acid (DNA)break, and stopping the respiratory metabolism. In this study, we analyze the effects of ionizing radiation on themorphology of the Leishmania amazonensis and the capacity of infection in experimental model. The radio sterilizedparasites maintained their membrane surface preserved while destroyed the other proteins needed to their life,promoting the possible of a new antigenic model.Keywords: leishmaniasis, ionizing radiation, vaccineFile: E09_654.pdf

INFLUÊNCIA DOS RADICAIS LIVRES GERADOS PELA IRRADIAÇÃO GAMA NOS NÍVEIS DE TREALOSE EMCÉLULAS DA LEVEDURA Saccharomyces boulardii

Flaviano dos Santos Martins, Cristina Roscoe Vianna, Maria José Neves

Abstract: Lyophilized cells of yeast Saccharomyces boulardii were submit to the gamma irradiation (60Cobalt). It wasnoted that the yeast cells surviving to gamma irradiation had more trehalose than control cells. The incubation ofcells with H202 induces the synthesis of trehalose but the exposition to CdCl2 induces the accumulation of trehaloseonly in low concentrations. Apparently there is a positive correlation between of trehalose level and gamma irradiationresistance of S. boulardii cells. It was not observed any correlation with the level of trehalose determined and theoxidative stress tested.Keywords: trehalose, oxidative stress, gamma irradiation, CdCl2, hydrogen peroxideFile: E09_655.pdf

RESPOSTAS DE TRADESCANTIA A UMA SIMULAÇÃO DE AUMENTO DA RADIOATIVIDADE NATURAL

Teresa C.dos Santos, Verginia R. Crispim, Yannick Nouailhetas

Abstract: It was established an experimental protocol involving a biological system (Tradescantia) appropriated forvisualization of mutations in three dose rates (1.6, 25 and 75 mR/min), which simulated an increasing environmentalradioactivity, once there is no conclusive studies concerning the effects of low radiation doses and natural radioactivity.The obtained results showed that, after a period of a significant increase in the mutation rate, the biological systemcame back to present mutations rates similar to those determined before the exposure.Keywords: tradescantia, environment radioactivity, mutation rates.File: E09_060.pdf



inac2002VI ENAN

IMMUNORADIOMETRIC ASSAY FOR QUANTIFICATION OF PROSTATE-SPECIFIC ANTIGEN (PSA)

Miriam Ruiz

Abstract: To develop an immunoradiometric assay (IRMA) for quantification of total PSA in serum, we carried out theevaluation of a panel of 12 monoclonal antibodies (MAbs). The mAbs (CB-PSA 1 to CB-PSA 10) were developed inthe Center of Genetic Engineering and Biotechnology (CIGB) Havana, Cuba and mAbs (CMC-H9, CMC-A5) in theCenter of Immunology and Biologics (CENIB), Camagüey, Cuba. The inhibition assays were carried out using asreference a commercial equimolar assay for total PSA. For the evaluation, the mAbs were labeled with 125I by themethod of Cloramine T and the capture mAbs were used conjugated with biotin. For separation, it was used theavidin coupled to magnetic particles. To validate the assay we evaluated the sensibility, inter and intraassay precisionand the correlation with reference assay in 65 samples of patient under suspicion of prostate cancer. The partnerCB-PSA 4 / CB-PSA 9 (capture / tracer) showed the best results in the IRMA. The developed assay presented adetection limit of 0.025 mg/L, a good intra and interassay precision and a high correlation with the reference assay.Keywords: immunoradiometric assay, prostate-specific antigen, monoclonal antibodies.File: E09_068.pdf

ESTUDOS SOBRE A ESTRUTURA E DINÂMICA MOLECULARES DO DNA E COMPONENTES DA CÉLULA ATRAVÉSDE TÉCNICAS DE MEDIDAS COM NÊUTRONS

Dante Luiz Voi

Abstract: Studies were realized boths to identify and define research areas attempting for the state priorities. In theBiology area there are several open research lines, specially about molecular structure and dynamics determinationsof nucleic acids, proteins and other cell components using neutron measurement technic and methods. Basicknowledgement are here presented for the understanding about function and molecular structures of DNA and cellcomponents. Problems in Biology are identified in the literature and are presented here to investigation with neutronscattering and transmission methods associated with the group and parcelling technics developed in our laboratories.Neutron measurements of the cromatin imerse in H/D solutions with several concentrations allows to contrast proteinsfrom the nucleic acids. Molecular identification and compounds from the H bridges in the extremes of the DNAdouble helix is another important investigation using the neutron scattering and transmission measurements. Adiscussion about viability of molecular structure and dynamics measurements in the Argonaut reactor to Biology fieldcontribution is presented.Keywords: nucleic acids, cell components, neutron measurements, molecular structures, molecular dynamicsFile: E09_586.pdf

ANÁLISE DE AMINOACIDOS ATRAVÉS DAS TÉCNICAS DO AGRUPAMENTO E PARCELAMENTO DE SEÇÕES DECHOQUE PARA NÊUTRONS

Dante Luiz Voi, Hélio Fernandes da Rocha

Abstract: Amino acids used in parenteral administration in hospital patients with special importance in nutritionalapplications were analyzed to compare with the manufactory data.Individual amino acid samples of phenylalanine, cysteine, methionine, tyrosine and threonine were measured withthe neutron crystal spectrometer installed at the J-9 irradiation channel of the 1 kW Argonaut Reactor of the Institutode Engenharia Nuclear (IEN). Gold and D2O high purity samples were used for the experimental system calibration.Neutron cross section values were calculated from chemical composition, conformation and molecular structureanalysis of the materials. Literature data were manipulated by parceling and grouping neutron cross sections.Keywords: individual amino acids, neutron cross sections, spectrometry, molecular structure, molecular dynamicsFile: E09_589.pdf

Biology

2002VI ENAN

inac



NUCLEARNUCLEARPHYSICSPHYSICSEE 1010NUCLEARNUCLEARPHYSICSPHYSICSEE 1010

NUCLEARNUCLEARPHYSICSPHYSICSEE 1010



inac2002VI ENAN

Nuclear PhysicsMONTE CARLO SIMULATIONS OF X-RAY GENERATION AND DETECTION

Maurício Moralles, Carla da Costa Guimarães e Emico Okuno

Abstract: The employment of Monte Carlo simulations in the applied nuclear physics techniques has increased withthe data processing capabilities of the commercial personal computers. Since the inclusion of the low-energyelectromagnetic interactions in GEANT4, this Monte Carlo simulation toolkit has produced results which reveal itspromising utilization in radiation dosimetry, radiation protection and medical applications. With the GEANT4 toolkit,interactions of electrons and photons with matter can be simulated down to energies as low as 250 eV. The presentwork shows simulation results of X-ray generation from a typical X-ray tube by impinging electrons on a tungstentarget, and filtering the produced photon beam with a beryllium window. In this process, characteristic andbremsstrahlung radiation are produced. Rayleigh, Compton, photoelectric and pair production interactions can beincluded in the transport of photons through the environment. The spectral analysis of the photon beam is performedby simulating a cadmium zinc telluride detector positioned in the radiation field. Different filters can also be placed inthe radiation field to produce the desired attenuation. Comparisons with experimental data show that the simulatedspectra reproduce very well the reality, indicating that the GEANT4 toolkit can be a good choice for future simulationsof experimental conditions for dosimetric purposes, such as dosimeter responses and dose estimationsKeywords: X-ray, monte carlo, GEANT 4.File: E10_699.pdf

ESPECTROSCOPIA GAMA NOS NÍVEIS EXCITADOS DE 155Eu

F.A. Genezini, C.B. Zamboni, R. Semmler, M.T. F da Cruz , J.Y. Zevallos-Cháves, H. Dias

Abstract: In this work the excited levels of 155Eu have been investigated by studying the gamma rays emitted followingthe beta decay of 155Sm . Single and gg coincidence spectra were measured and the results were compared. Theenergies of 80 gamma rays have been determined, 49 for the first time.Keywords: gamma spectroscopy, beta decay, gamma energy, 155EuFile: E10_374.pdf

SPIN OF EXCITED LEVELS IN 149Pm

I.M.M.A. Medeiros, C.B.Zamboni, J. A.G. de Medeiros, F.A. Genezini, 3M.T.F. da Cruz , J.Y. Zevallos-Chávez

Abstract: The level structure of 149Pm has been investigated by studying the gamma rays emitted following the betadecay of 149Nd (T 1/2 =1.7 h). The single and the gamma-gamma coincidence spectra were taken using several HPGedetectors with high energy resolution. The energy and relative intensities of 181 gamma rays have been determinedwith a better overall precision than previously. A decay scheme with 51 levels have been proposed . This include 6new levels at: 1407keV, 1368keV, 1364keV, 1329keV, 1293keV and 1181keV . The present results, together the resultsof earlier studies, permitted assignments of spin and parity for a number of these levels.Keywords: gamma rays, coincidence, decay scheme.File: E10_372.pdf

GAMMA SPECTROSCOPY OF EXCITED LEVELS IN 193Ir

G. S. Zahn, C. B. Zamboni, L. C. Oliveira, F. A. Genezini, M. T. F. da Cruz, J. Y. Zevallos-Chávez, H. Dias

Abstract: The population and the mode of decay of the excited levels of 193Ir have been investigated using a HPGedetector with high-energy-resolution and metallic samples of 193Os. The energies of 74 gamma rays have beendetermined with a better overall precision than previously, 16 of them at the first time. In addition, a number of g-transitions were confirmed.Keywords: spectroscopy, Ir-193, beta decayFile: E10_284.pdf



inac2002VI ENAN

Nuclear PhysicsESTUDO DA ESTRUTURA NUCLEAR DO 72Ge

José Agostinho G. de Medeiros, Frederico Antonio Genezini e Cibele Bugno Zamboni

Abstract: In the present paper the 72Ge has been discussed following the structure of nuclear models. A comparison ofsome nuclear properties of isotopes and isotones of even mass Ge nuclei (66-78) has been made following the nuclearprevision from collective models. Theoretical predictions from vibrational (VM), vibrational-rotacional (VRM), vibrationalanarmonic (VAM) and unified model (UM) have been compared with experimental nuclear properties and the nuclearstructure of 72Ge can be explained by vibrational anarmonic model associated with soft deformation.Keywords: Ge, vibrational model, vibrational-rotacional model, vibrational anarmonic model, unified modelFile: E10_636.pdf

VERIFICAÇÃO DA VIABILIDADE DA DETECÇÃO DE VIRIONS, ATRAVÉS DA ANÁLISE POR ATIVAÇÃO COM NÊUTRONS

R. Wacha, A. X. da Silva, V. R. Crispim, J.N.S.S Couceiro

Abstract: The use of nuclear techniques, as Neutron Activation Analysis (NAA), can be an alternative way for themicrobiological diagnosis, bringing a significant profit in the analysis time, for not needing pre cultivated samples inappropriate way. In this technique, the samples are collected and submitted to a thermal neutron beam. The interactionof these neutrons with the samples generates gamma rays whose energy spectre is a characteristic of the elementalcomposition of these samples. Of this done one, a virus presence can be detected in the sample through the distinctionof its respective elemental compositions allowing, also, carrying through the analysis in real time. In this work,computational simulations had been become fulfilled using the radiation transport code based on the Monte CarloMethod, MCNP4B, to verify the viability of the application of this system for the virus particle detection in its naturalcollection environment.Keywords: NAA, virus diagnosis, virus detection, MCNP codeFile: E10_011.pdf

A HYBRID TECHNIQUE TO EVALUATE THE LINE SPREAD FUNCTION

Gevaldo L. de Almeida, Maria Ines S. Souza, Ricardo T. Lopes

Abstract: A hybrid technique to evaluate the Line Spread Function (LSF) has been developed. It’s based on anexperimental-theoretical approach aiming the reduction of the required experimental efforts to reach an acceptablelevel of accuracy on the width of the Gaussian representing the LSF. Using this technique, the several spectra requiredto fill up the space domain with an adequate density, usually done by shifting slightly the object with respect to thesource-detector system after each spectrum is taken, are replaced by few spectra and a theoretical treatment involvingnumerical integration and non-linear fittings. In order to accomplish this task, a function is fitted to the experimentaldata, allowing the accurate determination of the center of the cylindrical object in the spectrum. Once this center isdetermined, it becomes possible to compare channel by channel the experimental counts with the expected theoreticalones. The first ones represent an integration of the transmitted neutron beam, as automatically performed by thedetector, and hence, to achieve the aimed comparison, the theoretical counts should as well arise from a similarintegration. Since the function expressing the transmitted beam intensity cannot be symbolically integrated, the task isdone numerically over regular intervals corresponding to each given nominal collimator aperture. The sum of quadraticdifferences between the experimental and calculated counts reaches a minimum at an effective collimator aperture,which is somewhat different from the nominal aperture actually used in the experiments due to the unavoidable neutronscattering process and statistical fluctuations. This effective aperture is then used to get through integration the theoreticalEdge Response Function (ERF) spectrum for any displacement step. Such a feature makes possible the simulation ofhigh density spectra which are otherwise experimentally unfeasible due to the limited mechanical tolerances of thepositioning devices. A derivation of the ERF yields the aimed LSF. Several comparisons and simulations have then bemade by using a computer program written in Fortran, to evaluate the applicability and advantages of the developedtechnique.Keywords: line spread function, edge response function, tomography, image quality.File: E10_142.pdf



inac2002VI ENAN

Nuclear PhysicsTHE 1-,0⟩ STATE IN 12C REVISITED

M.C.A.Campos, P.VON Neumann-Cosel, P.R.Pascholati, A.Richter

Abstract: The Jπ=1-,T=0⟩ state in 12C, at Ex=10.84 MeV, was investigated by inelastic electron scattering measurementsat low values of momentum transfer (q<0.6 fm -1). As well known, E1, ∆T=0 transitions are forbidden (to first order) bythe isospin selection rule in self-conjugate nuclei. Nevertheless, the isospin selection rule breaks down in the presenceof isospin mixing and/or away from the long wavelength limit. Therefore, instead of totally forbidden, these transitionsare strongly inhibited. At low-q values, they proceed through isospin mixing which shows up as an isovector (T=1)contribution to the form factor. As previously reported (1), form factors were measured for incident electrons with E i=60MeV, at scattering angles θ= 117o, 135o and 154o. The transverse term contribution to the form factor could not beneglected and was subtracted according to Siegert’s relation. In the present work, data are reanalyzed together withthe complete Sendai(2) data set, thus extending the momentum transfer range up to q≈1.4 fm -1. A polynomial form,derived in the framework of the harmonic oscillator shell-model, was fitted to the data. This semi-empirical expressionallows for an isovector (T=1) contribution to the form factor, which interferes destructively with the isoscalar (T=0)term, resulting in a minimum for low-q values. Extrapolating to the photon-point, the transition strength was determinedto be B(E1)=3.7(1.8) 10-4 e2fm2 Quantitative information on isospin mixing was obtained by calculating the CoulombMatrix Element, ⟨1ΗC0⟩, within a two-level mixing model, first assuming that the mixing occurs with the nearestT=1 level (Ex=17.23 MeV). This assumption resulted in <ΗC>≅750 (325) keV for the isospin symmetry breakingpotential. Such a magnitude for <ΗC> is not in good agreement with the systematics observed in isospin mixinginvestigations for the M1 doublet in 12C, Ex=12.71 and 15.11 MeV. Therefore, an admixture with the Ex=22.6 MeV(T=1) level (largest fragment of the GDR) was tried. This resulted in <ΗC> ≅ 350 (175) keV which follows well theobserved systematics. The results obtained in this work constitute the first investigation of isospin mixing, as well asthe first determination of B(E1) for the 1−,0⟩ state in 12C.Keywords: (e,e’) measurement, low-q form factors, isospin mixing in 12C.File: E10_416.pdf

2002VI ENAN

inac



MATERIALSMATERIALSSCIENCE ANDSCIENCE ANDTECHNOLOGYTECHNOLOGYEE 1111MATERIALSMATERIALSSCIENCE ANDSCIENCE ANDTECHNOLOGYTECHNOLOGYEE 1111MATERIALSMATERIALSSCIENCE ANDSCIENCE ANDTECHNOLOGYTECHNOLOGYEE 1111



inac2002VI ENAN

Materials Science and TechnologyDETERMINAÇÃO DA CONCENTRAÇÃO TOTAL DE TERRAS RARAS EM ÓXIDO DE URÂNIO-GADOLÍNIO POR

GRAVIMETRIA, COM SEPARAÇÃO PRÉVIA DO URÂNIO

Cleide Moreira da Silva e Maria Aparecida F. Pires

Abstract: In this work a simple and accurate method is presented for the determination of gadolinium in UO2-Gd2O3compounds. The method is based on the separation of gadolinium from uranium matrices using precipitationtechnique of rare earth with oxalic acid. The gadolinium grade was obtained by the indirect determination of totalrare earth concentration. The method was developed in order to characterize sinteryzed oxides pellets with nuclearpurity greater than 99,9%, in the absence of another rare earth and with Gd2O3 values varying from 6 to 93%. Theproposed method was compared to other procedures used in routine analysis for the determination of the rare earthin thorium compounds and salts of rare earth.Keywords: fuel, gravimetric analysis, gadoliniumFile: E11_904.pdf

COMPATIBILIZATION OF POLYAMIDE 6,6 /LINEAR LOW-DENSITY POLYETHYLENE BLEND BY ELECTRONIRRADIATION

E. Segura Pino and M. Aparecida Colombo

Abstract: Polymer blending is a growing scientific and commercial development activity. In most cases, polymericblends are formed by thermodynamically immiscible components. Such blends require the use of compatibiliezersthat, often, are copolymers, graft copolymers or any means that improve the dispersion and adhesion of blend phases.Compatibility of a polymer blend plays an important role in determining the blend properties for their end use. In thiswork, the compatibilization of the polyamide 6,6/low-density polyethylene blend, using electron radiation, was carriedout. Samples for mechanical test, with 75/25 %wt/wt composition were melt mixed in an extruder and then injection-molded. These samples were electron irradiated to doses of 50, 100, 150, and 200kGy. The tensile measurementsshow that the strength at break increases with an increase of the radiation doses. On the other hand, the elongationat break shows a rapid standing decrease as a function of the doses. Comparing these results with those obtainedwith no irradiated samples we have found an improvement of the mechanical properties of the PA6,6/LLDPE blend.We consider that the carboxylic groups produced in the polyethylene chains, during irradiation, react with the endamine end groups of the polyamide, acting as an interfacial bonding stabilizing this blend system.Keywords: electron irradiation, polyamide, polyethylene, blend, compatibilizationFile: E11_168.pdf

OCORRÊNCIA DE MINERAIS RADIOATIVOS EM ROCHAS GRANÍTICAS ORNAMENTAIS

Humberto Terrazas Salas; Hermínio Arias Nalini Jr.; Júlio César Mendes

Abstract: In this work, we report on results of studies to determine the presence of radioactive minerals in ornamentalgranitic rocks used as revestiment, originated from several quarries in Brazil, predominantly those from the states ofEspírito Santo and Minas Gerais. To develop this work, one hundred samples were collected from commercialstones in Belo Horizonte. In the study of the radioactive materials, techniques of autoradiography were used, as wellas optical microscopy, diffractometry and chemical analysis (X-ray spectometry, X-ray fluorescence, neutronicactivation, gravimetry and electron microanalysis) to determine the associated minerals and litotypes. Results obtainedwith autoradiographs of several samples show the shape, size and intensity of irregularly distributed dark spots which,when checked through an optical microscope and an electron microprobe, highlight mainly monazite, alanite andzircon. By using chemical analysis, concentrations of up to 30 ppm of uranium and 130 ppm of thorium were found,preferably associated to high concentrations of light rare earths in silicated rocks of granitic composition. In thefuture, further results about the ornamental granitic rocks with radioactive minerals will be applied, where possibleimplications to the environment and damages to the health due to contact with these rocks will be dicussed.Keywords: “granites” with radioactive minerals, radioactive minerals, ornamental rocks with radioactive mineralsFile: E11_175.pdf



inac2002VI ENAN

Materials Science and TechnologyANÁLISE DO ESPECTRO DE VIDA MÉDIA DE ANIQUILAÇÃO DO PÓSITRON ATRAVÉS DE ESTUDOS DE

PROBLEMAS INVERSOS

Roberto Pellacani G. Monteiro; Vanessa C. Viterbo; João Pedro Braga; Wellington F. de Magalhães e A. P. Braga

Abstract: Inversion of positron annihilation lifetime spectroscopy, based on a neural network Hopfield model andsingular value decomposition ( SVD ) associated to Tikhonov regularization is presented in this work. From a previousreported density function for lysozyme in water a simulated spectrum, without spectrometer resolution effects, wasgenerated. The precision of the inverted density function was analyzed taking into account the number of neuronsand the learning time of the Hopfield network and the maximum position and areas for the spectral peaks in the SVDmethod considering noise and noiseless data. A fair agreement was obtained when comparing the inversion resultswith direct exact results.Keywords: inverse problems, positron annihilation, Tikhonov regularization, SVD method, Hopfield networkFile: E11_205.pdf

CARACTERIZAÇÃO DO POLI(ACETATO DE VINILA) OBTIDO POR RADIAÇÃO GAMA

Andrea C. Mesquita, Manoel N. Mori, Leonardo G. de Andrade e Silva

Abstract: The polymerization of vinyl acetate in two different concentrations of ethanol solution has been carried outusing different doses of g-rays as initiator. The percentage of conversion of monomer increases appreciably with thedose. The resulting polymers were characterized by differential scanning calorimetry (DSC) and gel permeationchromatography (GPC). The water absorption, density, hardness and Vicat softening temperature were determinated.These results were used to evaluate the physical-chemistry properties of the polymer products.Keywords: poly(vinyl acetate), polymerization, radiation-induced.File: E11_399.pdf

RADICAIS FORMADOS NO N,N-DIMETILAMINOETIL METACRILATO GAMA-IRRADIADO

Luz Consuelo G. A. Panzarini e Selma M. L. Guedes

Abstract: Hydrophilic monomers as N,N-dimethylaminoethyl methacrilate (DMAEMA) could be radiolytic grafted intohydrophobic polymeric matrix as PVC, due theirs best biocompatibles properties. Samples of DMAEMA were beenirradiated with gamma rays from a 60Co source, at 77K, in suprasil tubes sealed in air presence. The formed radicalswere studied with electron spin resonance (ESR) at 77K, after samples exposure at different and increasing time at293K. The former radicals of DMAEMA were formed as a consequence of the addiction reaction radical H• with demonomeryc molecules. The subtraction spectra method could show us the presence of the radical pairs and thescavenger electrons that disappears with heat.Keywords: radicals, N,N-dimethylaminoethylmethacrylate, electron spin resonance, radiation, grafting,File: E11_671.pdf

EFEITO DA RADIAÇÃO GAMA NA ESTRUTURA MOLECULAR DO POLI (ÁLCOOL VINÍLICO)

Mauro C. Terence e Selma M.L. Guedes

Abstract: The poly(vinyl alcohol) (PVAL) is a polymer used as biomaterial. The PVAL was used as ocular insert andmay be used as a drug delivery system (DDS) for pair PVAL/dihidroxipropoxymethyl guanine, where the last one isused for treatment of people with retinite caused by citomegalovirus. These inserts are crosslinked systems. Thecrosslink was induced by gamma radiation applied in polymer. The samples of PVAL was irradiated by gamma rayswith doses in the range 0 to 200kGy. On irradiated PVAL samples was observed a low yellowness, attributed to theformation of polymeric radicals that are stable in the structure of the polymer, from radiolysis of PVAL.Keywords: PVAL, biomaterial, crosslinkingFile: E11_421.pdf



inac2002VI ENAN

Materials Science and TechnologyESTUDO DO EFEITO DA RADIAÇÃO NAS PROPRIEDADES MECÂNICAS, DE FLAMABILIDADE E DE FIO

INCANDESCENTE DA POLIAMIDA 6.6 COM E SEM REFORÇO DE FIBRA DE VIDRO

Waldir Pedro Ferro e Leonardo Gondim de Andrade e Silva

Abstract: The Automotive, Electric and Electronic Component Industry, more and more employ the Engineering Plasticas a viable alternative for the reduction of costs and increase of productivity without loss of quality. Polyamide 6.6 is anEngineering Plastic with distinguished role on this category of polymers due to its high thermal and chemicalresistances and strength. The aim of this work is to present the results of Tensile Strength, Flexural Strength and IzodNotched Impact Strength as well as thermal experiments of Flammability (Automotive and Electronic ComponentsIndustry) and of Glow Wire (Electric Components Industry) of Polyamide 6.6 with or without Fiber Glass reinforcement,irradiated by Electron Beams in different doses.Keywords: polyamide 6.6, irradiation, electron beams, glow wire, flamability.File: E11_402.pdf

EFEITO DA [Ti02] NAS PROPRIEDADES DE ATENUAÇÃO DA RADIAÇÃO NO SIMULADOR DE TECIDO HUMANO

OBTIDO DO LÁTEX DE BORRACHA NATURAL RADIOVULCANIZADO

Sumie Tomimasu e Selma Matheus Loureiro Guedes

Abstract: In this paper was studied the concentration effect of TiO2 used as filler in the radiation attenuation propertiesof human tissue simulator obtained from radiovulcanized natural rubber. The studied parameters were the following:the mass stopping power (Smas), the depth at maximum dose (Zmax), the depth at 50% of maximum dose (R50) theradiotherapeutic range (RR80) and the electrons range (R). The natural rubber latex was formulated with [n-butylacrylate ] = 3phr and [KOH] = 0,2phr and radiovulcanized by gamma rays (10kGy) from 60Co source. The filler TiO2was added (0-16phr). The natural rubber slabs were obtained by casting method and theirs absorved dose behaviorwas studied for each filler concentration using electrons beam (6MeV) from an accelerator. The results showed thatthe addition of each phr of filler promoted the decrease of 0.019cm for Zmax, 0.021cm for RR80, 0.033cm for R and0.026cm for R50 up to [TiO2] = 15phr. The Smas increased from 1.72 MeVcm2g-1 to 2.00 MeVcm2g -1 in the fillerconcentration range of 0-16phr. The filler must be used in the 12-15phr range.Keywords: tissue simulator, natural rubber latex, radiovulcanization, radiotherapy, absorption dose properties.File: E11_422.pdf

INFLUÊNCIA DA TAXA DE DOSE E DA VELOCIDADE DE PROCESSO NA CURA DE REVESTIMENTOS PORRADIAÇÃO UV/EB

Carmen Silvia Bentivoglio Ruiz, Luci Diva Brocardo Machado

Abstract: The UV and EB curing processes of coatings, adhesives and composites can be affected by severalparameters related to the generated radiation. The aim of this work is to investigate the effects of dose rate, irradianceor beam current, line speed, and the number of irradiation steps on the curing of two different clear coatings basedon acrylated materials. Whilst the unsaturated oligomer and monomer components in UV curable system are capableof absorbing UV radiation through their ethenic unsaturation, the free radicals generation and subsequent photoinducedpolymerization for the film formation are so slow as to make this process technically unacceptable. Thus, UVformulation requires a photoinitiator to generate the free radicals needed for the initiation step of the additionpolymerization. In EB curing, a high-energy electron beam ionizes the components of the formulation leading to thegeneration of free radicals. Then, photoinitiator is not required [1]. The curing degree and tensile properties of thecured films were investigated and correlated to the process parameters. The results showed that the UV cured sampleswere more affected by the process parameter studied than the EB ones.Keywords: UV/EB Curing, Radiation Curing and Photocurable CoatingsFile: E11_532.pdf



inac2002VI ENAN

Materials Science and TechnologyESTUDO DO EFEITO DA DOSE DE RADIOESTERILIZAÇÃO SOBRE AS PROPRIEDADES

DO POLI(TEREFTALATO DE ETILENO) - PET RECICLADO

Ana Beatriz Godoy Isoldi, Salmo Cordeiro do Rosário, Leonardo Gondim de Andrade e Silva

Abstract: The packing are in constant development, in function, especially, the process of globalization. The opening ofthe brazilian market after currency stabilization, caused technological innovations, change of habits and costums of thepopulation and enviromental matters. Year after year, because of cost reductions, it became more extreme the hardstudy of the polymeric materials and their copolymers, their possible blends and their recycling, always seeking a betterwrapping of the products, especially when it concerns to the food, increasing its shelf life. The process of sterilization offoods and modification of polymers through radiation are targets of growing interest by of the current industries linkedto the nutrition and packing sectors. The objective of this paper is to discuss the application of the radiation (electronbeam) in the sterilization of packings of recycled poly(ethylene terephthalate) – PET, evaluating the possible effects ontheir properties.Keywords: poly(ethylene terephthalate), recycling, sterilization, irradiation, electron beam.File: E11_438.pdf

ANÁLISE DE VIDROS BIOATIVOS E RADIOATIVOS PARA BRAQUITERAPIA DE CÂNCER DE PRÓSTATA

Wanderley S. Roberto, Tarcísio P. R. de Campos & Marivalda M. Pereira

Abstract: Prostate cancer can be treated by interstitial brachytherapy through the implants of 125I, 192Ir, 198Au or 103Pdseeds placed homogeneously onto the prostatic gland. The applied dose at 90% of the gland volume reaches 120Gyor up. However, the cost inhibits your general application the country. The present work presents preliminary resultsfrom the production of radioactive ceramic seeds, biocompatible and biodegradable incorporating 153Sm, as alternativefor other radionuclides. The technique use for the Sm incorporation was the sol-gel process. Seeds with pre-selecteddiameters may be activated by neutrons in the range 108 to 109n.cm-2.s-1. The possibilities of seed’s processing withhigh purity, homogeneity in a lower temperatures found insights into the research area of ceramic and glass processingby sol-gel. The technique suggests the homogeneous implantation of a thousand of micro ceramic grains with similartotal volume represented by 200 conventional 125I seeds. The contribution of the beta ray to the total dose is predominant.The viability of producing biodegradable seeds, inducing a beta therapy, produced by neutronic activation (n,γ) at a lowflux and with low cost, is encourages. The chemical characterization of the seeds was done. The activities emitted bythe 153Sm were evaluated, as well as for all others elements in their chemical composition. The results indicate thepossibility to obtain seeds with adequate activities for treatment. The images obtained through medical radiology confirmedthe possibility to visualize the seeds post-implant.Key words: seed Implants, prostatic cancer, bioactives glasses, biodegradables seeds, sol-gel methodFile: E11_269.pdf

ESTUDO DAS ALTERAÇÕES ESTRUTURAIS EM ARGILAS PILARIZADAS

Aluísio Sousa Reis Júnior e José Domingos Ardisson

Abstract: X ray diffraction and Mössbauer spectroscopy were used to study the structural changes due the Al-poli-hydroxide interactions with the montmorillonite surface. Pillared Intercalated Clays obtained from Fe and Cu-richmontmorillonites were studied. The results show that the basal spacing for samples obtained from Cu-rich montmorillonite(13.6 Ä) is lower than that observed for samples obtained from Fe-rich montmorillonite (16.2 Å). This difference issupposed be due the occupation by Cu2+ ions of the hexagonal cavity on the clay surface. These copper ions inducereactions between the oligomers and clay surface causing changes on the layer structure.Keywords: PILC, basal spacing, Mössbauer spectroscopy, surface interactíons, structural rearrangement.File: E11_432.pdf



inac2002VI ENAN

Materials Science and TechnologyA HUMAN HEAD PHANTOM FOR EXPERIMENTAL DOSIMETRY

Lídia M. Andrade, Elizabeth R. Alfenas and Tarcísio P. R. Campos

Abstract: In order to achieve a better understanding of the behavior of nuclear particles in a human head experiment aphantom preserving similar tissues as well as similar anthropomorphic characteristics was used. In this work a biologicequivalent tissue material was developed, maintaining the chemical composition and tissue density, based on enrichedPMMA. A humanoid head phantom was built using a human skull as a base, donated by the Morphology Departmentof the Institute for Biologic Sciences-ICB/UFMG. Muscles were replaced with biologic equivalent tissue material followinganatomic precepts. The phantom presents: formolized animal salivary glands, brain and submandibular lymphnodes;human teeth; hair; prosthetic eyes and nose as well as human equivalent skin containing silicone and animal collagen.This phantom present several important conditions as human morphological characteristcs, equivalent biological tissueand the head bone structure. It will be used in radiotherapy and brachytherapy studies, dosimetry and quality controlof medical diagnostic image.Keywords: head phantom, dosimetry, equivalent tissue.File: E11_764.pdf

TRANSFORMAÇÃO VIA PERÓXIDO DE UM HIDRÓXIDO BRUTO DE TÓRIO EM NITRATO PARA CAMISAS DELAMPIÃO

Antonio Alves de Freitas, Fátima Maria Sequeira de Carvalho, João Coutinho Ferreira, Alcídio Abrão

Abstract: An alternative process for the recovery and purification of thorium starting from a crude thorium hydroxide asthe precursor is outlined in this paper. It’s composition is 60.1% thorium oxide (ThO2), 18.6% rare earth oxides (TR2O3),and common impurities like silicium, iron, titanium, lead and sodium. This material was produced industrially from themonazite processing in Brazil and has been stocked since several years.The crude thorium hydroxide is treated with hot nitric acid and after the digestion and addition of floculant it is filtered forthe separation of the insoluble fraction. Using this nitrate solution, the thorium peroxide is precipitated after adjustmentof pH and controlled addition of hydrogen peroxide. The final thorium peroxide is dissolved with nitric acid and theresulting thorium nitrate is mantle grade quality. Rare earth elements are recovered from the thorium peroxide filtrate.The main process parameters for the peroxide precipitation, like pH and temperature and main the results are presentedand discussed.Keywords: crude thorium hydroxide dissolution; thorium peroxide; mantle grade thorium nitrateFile: E11_114.pdf

PRODUÇÃO DE LANTÂNIO DE ALTA PUREZA PARA APLICAÇÃO EM P&D

Mari Estela de Vasconcellos, Carlos A. da S. Queiroz, Soraya M. R. Rocha, José A. Seneda, Walter R. Pedreira,Jorge E. S. Sarkis, Christina. A. L. G. O. Forbicini e Alcídio Abrão

Abstract: In this work the focus is a simple and economical procedure for the separation and purification of lanthanumoxide. Starting with a low cerium rare earth carbonate the final product is a lanthanum oxide of spectrochemical gradefor use as standard. An ion exhange installation comprising four acrylic columns of 300 cm high and 12 cm i.d. wasused. The technique uses a strong cationic ion exchange resin without barrier ion. The loaded resin is eluted withEDTA ammonium salt at pH 4.0. In an unique cycle La2O3 greater than 99.9 % purity is achieved. The total capacity ofthe installation is ten kilogram rare earth oxides. Great emphasis was given to the analytical control. The highly purelanthanum oxide was analyzed by the HPLC-ICP/MS technique. A typical high purity lanthanum oxide has as rare earthcontaminants, in µg g-1: Sc (47,01), Y (0,08), Ce (21,61), Pr (0,96), Nd (12,98), Sm (5,86), Eu (0,46), Gd (96,61), Tb(1,43), Dy (0,39), Ho (0,08), Er (0,43), Tm (0,05), Yb (6,48) e Lu (0,06).Keywords: lanthanum oxide, spec pure standard, rare earths fractionation, HR-ICP/MSFile: E11_173.pdf



inac2002VI ENAN

Materials Science and TechnologyOXIDATIVE BEHAVIOR OF IRRADIATED POLYPROPYLENE,

PREDICTED AS TEMPERATURE-OXIDATIVE INDUCTION TIME (TOIT)

Lugão, A.B.; Cardoso, E.C.L.; Sousa, J.S.; Ghilardi, E.; Parra, D.F.

Abstract: Organic materials undergo degradation reactions in the presence of oxygen. Most of known polymers havestructural elements that are prone to oxidative degradation reactions: inadequate antioxidant content can contribute tothis failure. Associated to it, radiation can impart to thermoplastic polymers, at a given level, non desirable effects,compromising, this way, “end-use” of final product.A new Temperature-Oxidative Induction Time – TOIT (once conventional ASTM-D-3895-95 method showed itself uselessfor this purpose), is being developed, in order to evaluate radiation effects in PP, under controlled oxygen atmosphere.Basically, it deals exclusively with a special temperature program, involving dynamic and isothermal techniques,comprising too final TOIT determinations in molten state samples. In resume, the whole test is carried out undernitrogen environment; at approximately 150oC, oxygen is introduced, causing initial breakdown of antioxidant protection,accompanied by energy releasing and an upward deflection of the curve above baseline. The changeover point tooxygen flow is considered the zero time of analysis.Both Polypropylene (PP), stabilized and non-stabilized (irradiated and non-irradiated) ones were assessed; TOIT withina range from 11 to 35 minutes were achieved, as per well defined thermograms.Keywords: OIT, PP, irradiation, non-stabilized, stabilizedFile: E11_748.pdf

RECUPERAÇÃO DE TÓRIO COMO NITRATO “MANTLE GRADE” USANDO-SE UM HIDRÓXIDO DE TÓRIO BRUTO

Mari Estela de Vasconcellos, Carlos Alberto da Silva Queiroz e Alcídio Abrão

Abstract: In the course of the industrial treatment of monazite sand in S. Paulo, Brazil, several concentrates containingthorium and rare earth elements were produced. A typical thorium concentrate, named “crude thorium hydroxide” –HTBR, has the following composition: thorium oxide 50 – 60%, rare earth oxides: 20 – 26% and minor impurities likeiron, lead, silicon, sodium and others. A reasonable amount of the above mentioned concentrate is available today.Having in mind an alternative process in substitution of the until recently used thorium sulfate as the raw material, nowcompletely consumed, work with this HTBR thorium concentrate is being worked out. A process of fractional hydroxidesprecipitation has been studied for separation of thorium from the rare earth. The fractional precipitation is based uponthe warm nitric acid dissolution aiming the insolubilization of the great majority of the silica and the maximum solubilizationof thorium and rare earth elements. The resultant filtered acid solution is then treated with a neutralizing agent in acontrolled condition for the precipitation of the whole thorium content and keeping the rare earth nitrates in the solution.The precipitate has high concentration of thorium and 4% rare earths. Thorium nitrate solution containing 200-250 g L -

1 ThO2 is obtained by dissolution of this fraction with nitric acid. Thorium nitrate obtained from the HTBR is adequate forthe use in the gas mantle manufacture.Keywords: thorium and rare earths sludge separation, fractional precipitationFile: E11_180.pdf

ESTUDO DA ESTABILIZAÇÃO TÉRMICA EM FILMES DE POLI(METACRILATO DE METILA) RADIOESTÁVEIS

Kátia Apareicda da Silva Aquino e Elmo S. Araújo

Abstract: Poly(methyl metacrylate), PMMA, is used in the fabrication of medical supplies which can be sterilized bygamma radiation. However, when PMMA is irradiated, main chain scissions take place with consequent degradationon its physical properties. The radiolytic stability of PMMA was studied using commercial additives, employed in thephoto and thermo-oxidation stabilization of polymers. Our results indicate that the polymer structure can be stabilizedwithout deterioration of their thermal properties.Keywords: PMMA, thermal stabilization, additiveFile: E11_682.pdf



inac2002VI ENAN

Materials Science and TechnologyESTUDO DOS DANOS CAUSADOS POR FLUIDO DE P ERFURAÇÃO EM AMOSTRAS DE ARENITO

UTILIZANDO A FLUORESCÊNCIA DE RAIOS X DISPERSIVA EM ENERGIA (EDXRF)

João Luiz B. Ribeiro, Ricardo T. Lopes, João C. Queiroz Neto, Marcelino J. dos Anjos, e Jaques C. Leite

Abstract: The performance of an X ray fluorescence (EDXRF) system was evaluated for the determination of solidsinvasion profile. The EDXRF was used to identify the elements, that are present in the rock core after the damage tests.Results are presented of an experimental study of formation permeability damage caused by invasion of the inert andextraneous solids simulated by CaCO3 particles. Laboratory damage tests were performed using two types of sandstonescore. Vila Velha, low permeability (15 mD) and Rio Bonito, high permeability (800 mD). The damage tests were performedwith utilization of SIRF-P, which simulates the conditions find in-situ (petroleum well).Keywords: X ray fluorescence, invasion, permeability, damage and particles.File: E11_176.pdf

PREPARAÇÃO DE NANOPARTÍCULAS MAGNÉTICAS SILANIZADAS PARA UTILIZAÇÃO

EM TÉCNICAS DE SEPARAÇÃO MAGNÉTICA

Mitiko Yamaura, Ruth Luqueze Camilo, Eduardo de Moura e Bruno Zolotareff Santos

Abstract: Superparamagnetic particles of magnetite were functionalized with 3-aminopropyltriethoxisilane by directsilanization to provide the modified magnetic nanoparticles. They are characterized by scanning and transmissionelectron microscopy, infrared absorption spectroscopy and by the thermogravimetry. The characterizations by infraredabsorption spectroscopy and thermogravimetry confirmed the functionalization. The adsorption capacity of the silanizedmagnetite and equilibrium isotherm of Eu (III) ions from nitric solution were determined.Keywords: magnetic nanoparticles, magnetic resin, silanization, silanized magnetite, radioactive wasteFile: E11_346.pdf

OBTENÇÃO DE CLORETO DE TERRAS RARAS ANIDRO EM LEITO FLUIDIZADO

Gloria R. S. Wildhagen, José Waldemar S. D. Cunha, Eder F. Silva, Luís A. Calçada, Catarina R. da Silveira

Abstract: This work presents a study of the dehydration of a mixture of rare-earth chlorides in a fluidized bed aiming aproduction of anhydrous rare-earth chlorides used for preparation of mischmetal by electrolytic and metallothermicprocesses. A mixture of nitrogen and HCl(g) in the gas stream is employed as a means to avoid hydrolytic reactions. Ina experimental unit the curves of drying and dehydration had been raised, aiming at to determine the influence of theoperational variables (temperature and flowrate of the gas stream) in the attainment of production of anhydrous rare-earth chloride.Keywords: Rare Earths, Dehydration, Fluidized BedFile: E11_531.pdf

URANYL NITRATE COMPLEX WITH THE LIGAND 1,3-DITHIANE-1-OXIDE (DTSO)

Pedro Miranda Jr, Marcelo F.Máduar, Maria Claudia F.C. Felinto, Duclerc F. Parra and Hermi Felinto

Abstract: Uranyl nitrate complex with 1,3-dithiane-1-oxide (DTSO) was synthesized by reaction of the hydrated uranylnitrate with DTSO in ethanol solution. The complex was characterized by CHN microanalytical and infrared spectra.The emission spectrum of the uranyl ion shows four groups of lines of intrinsic luminescence of the matrix. Thermalbehavior of the complex was investigated by thermogravimetric (TG) and differential scanning calorimetric (DSC)analysis. The structure of the complex resolved by X-ray showed that the uranium atom is octa-coordinated with twooxygen atoms, two bidentate nitrate ions and two DTSO ligands.Keywords: uranyl nitrate, 1,3-dithiane-1-oxide, structure, thermal analysis, luminescenceFile: E11_598.pdf



inac2002VI ENAN

Materials Science and TechnologyCARACTERIZAÇÃO DA POLIAMIDA-6 RECICLADA IRRADIADA POR FEIXE DE ELÉTRONS

Maria Cecília Evora, Luci D. B Machado, Vera L.Lourenço,Lilian C. Lopérgolo, Hélio Wiebeck, Leonardo G. Andrade e Silva

Abstract: This work had the objective to characterize recycled polyamide-6 irradiated by a 1.5 MeV electron beam fordifferent doses. The recycling process needs special attention, because successive recycling cycles promote changesin several properties of the material, as structures break down, decrease of molecular weight, increase of melting indexand decrease of mechanical resistance. The thermal properties of the recycled polyamide-6 were investigated by DSCand DMA measurements. The density of crosslinking was calculated through the equilibrium swelling experiments,using the Flory-Rehner theory. The mechanical properties by the stress strain. From the experimental results, it wasshown that for doses up to 500 kGy, at 22.61 kGy/s dose rate, in the presence of air, the recycled polyamida-6 undergoesthe crosslinking process through micronetwork formation. For doses from 600 to 1000 kGy, the degradation process ispredominant.Keywords: electron beam, crosslinking, recycled polyamide-6.File: E11_398.pdf

INFLUÊNCIA DA RADIAÇÃO GAMA NO VALOR DA CONSTANTE DE SCHULZ-BLASCHKE

Erik Gonçalves Holder da Silva ; Elmo Araújo

Abstract: When conventional polymeric systems are exposed to the radiation, they undergo several effects on theirmolecular structure as the cross-linking and main chain scissions. In this work, we used the viscometer method becauseof its simplicity and efficience on avaliation of those effects. In general, changes on molecular structure may largelyaffect the physical properties of polymers. By data obtained from this method, we can calculate the intrinsic viscosity,[η], with direct aplication of Schulz-Blaschke equation: [η]=ηred/(1+ksb.ηesp) , and to obtain the average viscosity molarmass, Mv, through Mark-Houwink relation: [η] = K(Mv)

a. An important parameter to calculate [η] is the Schulz-Blaschkeconstant, ksb, that depends on the polymer-solvent-temperature system. In this paper, it’s studied the changes on ksbconstant value of polymer system after exposition to the gamma irrradiation. The polymers poly (methyl methacrylate),polystyrene and polycarbonate were choosen and irradiated in doses of 30 and 50 kGy. These polymers are often usedon confection of medical supplies sterelized by ionizing irradiation. The results obtained before and after the expositionto the radiation showed large changes on ksb values of these materials.Keywords: schulz-blaschke, PMMA, PS, PC.File: E11_645.pdf

CARACTERIZAÇÃO MECÂNICA DE HIDROGÉIS DE PVAl PARA SEREM UTILIZADOS COMO CARTILAGEMARTICULAR ARTIFICIAL RETICULADOS POR RADIAÇÃO

Vanessa Petrilli Bavaresco, Luci Diva Brocardo Machado, Cecília A.C. Zavaglia, Marcelo de Carvalho Reis

Abstract: Crosslinked networks of polyvinyl alcohol (PVA) produced from PVA aqueous solution and induced by radiationhas been recently developed, and their mechanical properties have been studied. These materials are too fragile to beuseful for artificial joint cartilage applications, unless reinforced in some way. In this work, the mechanical resistance ofPVA hydrogel produced by irradiation techniques was studied. Polyvinyl alcohol films from 15 and 20% w/w aqueoussolutions were acetalized by immersing it in an acetalization bath containing aqueous formaldehyde, sulfuric acid andsodium sulfate anhydrous (60:50:300g) at 60°C. The acetalized samples were irradiated (Dynamitron (E = 1,5MeV))with 25, 50, 75, 100 kGy doses. Hydrogel samples were characterized by indentation creep test and water swelling.The results obtained in this study suggest the improving of the mechanical properties of the hydrogel by the combinationof acetalization and electron beam irradiation, without decreasing in the swelling properties.Keywords: polyvinyl alcohol, hydrogel, radiation, artificial joint cartilageFile: E11_543.pdf



inac2002VI ENAN

Materials Science and TechnologyESTUDO DA INFLUÊNCIA DA RAZÃO OH/F NA RESPOSTA TERMOLUMINESCENTE DO TOPÁZIO

Divanizia N. Souza, José F. Lima, Mário Ernesto G. Valerio, José Marcos Sasaki, Linda V. E. Caldas

Abstract: The techniques of thermoluminescence and X-ray difratometry were combined with the aim to identify thecharge carriers and the recombination centers, and to help the understanding of the processes of light emission innatural topaz. According to the results obtained, the colourless topaz samples present higher TL intensities and occupationfactors them the coloured samples. These values are directly related to the thermal treatment temperatures too; thesamples treated thermally at lower temperatures present higher TL response and occupation factors of the OH groups.Therefore, the charge centers of topaz may be related to the OH groups, and the thermal treatments modify the numberof recombination centers.Keywords: topaz, thermoluminescence, X-Ray powderFile: E11_286.pdf

ESTUDO DE MISCIBILIDADE DA MISTURA FÍSICA PMMA/PS: COMPATIBILIZAÇÃO INDUZIDA POR RADIAÇÃO GAMA

Ivânia Sores de Lima, Elmo S. Araújo e Walter M. de Azevedo

Abstract: In this work the miscibility of PMMA/PS blends were studied in different compositions, using viscometric andmicroscopy (SEM) techniques. The results show that PMMA/PS blends in the compositions below 10 wt% of PS aremiscible, in films casting from solution of toluene and methyl-ethyl-ketone (1:1) mixture. On the other hand, in thecomposition above 30 wt% of PS, PMMA/PS blends show immiscibility behavior. These polymer solutions were irradiatedwith radiation gamma ( 60Co). Viscometric and microscopic experiments show gamma irradiation-induced compatibilizationon PMMA/PS blends on proportion 50/50 and 30/70 takes place.Keywords: miscibility, PMMA/PS blends, radiationFile: E11_669.pdf

ESTUDIO DE LA RETENCIÓN DE MOLIBDENO EN ALÚMINA

María V. Wilkinson, Ángel V. Mondino, Alberto Manzini

Abstract: The Argentine National Atomic Energy Commission routinely produces 99Mo by fission of highly enricheduranium contained in targets irradiated in RA-3 reactor. The current process begins with the dissolution of the irradiatedtarget in a basic media, considering the possibility of changing the targets, it could be convenient to dissolve them inacid media. The use of alumina as a first separation step in acid dissolution processes is already known although itis necessary to determine both the type of alumina to be used and the separation conditions. The study of molidbenumretention in alumina was performed at laboratory scale, using Mo-99 as radiotracer. Different kinds of alumina weretried, varying charge solution acidity. Influence of uranium concentration in the loading solution on molibdenumretention was also studied.Keywords: adsorbents; adsorption; aluminium oxides; fission products; molybdenum 99File: E11_676.pdf

SÍNTESE E CARACTERIZAÇÃO DE PRECURSORES À BASE DE LANTÂNIO PARA APLICAÇÃO EM CATALISADORES

Soraya Maria Rizzo da Rocha , Carlos Alberto da Silva Queiroz e Alcídio Abrão

Abstract: The use of precursors based upon the rare earths has considerable interest for the manufacture of catalysts.Starting with a rare earths fraction depleted in cerium (a low cerium carbonate, LCC) produced locally by the industrialprocessing of monazite sand as raw material, a very pure concentrate of lanthanum was prepared. The rare earthchloride solution was loaded into a strong cationic ion exchange resin and next elution was made using ammoniumsalt of EDTA. No barrier ion was used. The lanthanum fraction was separated from EDTA and then precipitated asoxalate and fired to lanthanum oxide. This oxide was dissolved with acetic acid and the solution evapored to crystallizethe pure lanthanum acetate.Keywords: rare-earths, precursors, catalysts.File: E11_191.pdf



inac2002VI ENAN

Materials Science and TechnologyESTUDO DO PROCESSO DE CO-POLIMERIZAÇÃO DE ACRILATOS E METACRILATOS INDUZIDO POR IRRADIAÇÃO

GAMA

Jonas S. Cavalcante, José Miraglia, Ademar B. Lugão, Joe Tonolli

Abstract: Polymers have been used in the fabrication of optical fibers with advantages under glass fibers for transmissionin network local. The PMMA is a polymer largely used, however, in diameters larger than 3mm this material becamebrittle. Present techniques for manufacturing produce harmful residues in transmission of electrical signal. Thispaper shows the development of an attainment technical from a co-polymer base acrylate/metacrylate more flexibleanf clean, through the use of a gamma irradiation source. There were accomplished essays for TGA and DSC inorder to examine the mass loss and the Tg, flexibility and transmitance percentage. The conclusion shows theviability for the process and requirements for improving polymer flexibility, once the acrylate does not produce expectedresults at doses greater than 15 kGy.Keywords: plastical optical fibers, polymers irradiation, irradiation processes.File: E11_662.pdf

CARACTERIZAÇÃO DE TUBO DE TITÂNIO PARA CONFECÇÃO DE SEMENTES DE IODO-125 UTILIZADAS EMBRAQUITERAPIA

Anselmo Feher, Maria Elisa C. M. Rostelato, Paulo R. Rela and Vladimir Lepki

Abstract: Iodine-125 seeds have been widely applied as an alternative treatment for prostate cancer. Titanium is thematerial selected as the external part forming a tube which contains the iodine source. The titanium was chosen asthe external container due to its physical and chemical properties such as corrosion resistant, lightness and mainlydue to its bio-compatibility. The objective of the present paper is to characterize the titanium material to be used in themanufacture of iodine seeds, in special form of sealed source. Some assays to quantify the material impurities anddimensional analyses to control the tube wall thickness were performed. The ray-X fluorescence method was appliedfor impurities quantification while dimensional analyses were performed by microscopy.Keywords: iodine-125 seeds, titanium tube, brachytherapy, titanium for implantsFile: E11_511.pdf

CICLO DO COMBUSTÍVEL NUCLEAR: P&D E TECNOLOGIAS DE ARRASTE

Wagner dos Santos Oliveira

Abstract: The scope of this work is to show the importance of “push technologies” in the development of the NuclearFuel Cycle more specifically the so called “Projeto Conversão” PROCON. This R&D activities lead to the design ofspecial equipment, new metallic and polymer materialsKeywords: UF6 , fluorine, push technologies, technological forecastingFile: E11_225.pdf

CARACTERIZAÇÃO DO HIDROGEL DE POLI(N-VINIL-2-PIRROLIDONA) PARA USO VETERINÁRIO

Sizue O. Rogero; Solange G. Lorenzetti; Lilian C. Lopérgolo e Ademar B. Lugão

Abstract: Hydrogel is a polymeric material that exhibits the ability to swell in water and retains a significant fraction ofwater within its structure, but does not dissolve in water. This work was directed to the study of a new veterinary gel foruse as wound dressings. The hidrogels were prepared by gamma irradiation of an aqueous polymer solution withdifferent polysaccharides. The resulting changes in the main properties of the membranes, such as gel content,swelling characteristics and cytotoxicity were investigated.Keywords: hydrogel, veterinary gel, cytotoxicity, PVP-polysaccharidesFile: E11_548.pdf



inac2002VI ENAN

Materials Science and TechnologyTÉCNICAS DE MEDIÇÃO DE RUÍDO ELETROQUÍMICO E POTENCIAL DE CORRENTE CONTÍNUA REVERSA

APLICADAS A ENSAIOS DE CORROSÃO SOB TENSÃO

Omar Fernandes Aly , Arnaldo Paes de Andrade, Idalina Vieira Aoki e Miguel Mattar Neto

Abstract: This paper aims to collect informations and to discuss the eletrochemical noise measurements and thereversing dc potential drop method, applied to stress corrosion essays that can be used to evaluate the nucleationand the increase of stress corrosion cracking (SCC) in Alloy 600 and/or Alloy 182 specimens from Angra I NuclearPower Plant. Therefore we will pretend to stablish a standard procedure to essays to be realized on the new autoclaveequipment on the Laboratório de Eletroquímica e Corrosão do Departamento de Engenharia Química da EscolaPolitécnica da Universidade de São Paulo -Eletrochemical and Corrosion Laboratory of the Chemical EngineeringDepartment of Politechnical School of São Paulo University, Brazil.Keywords: alloy 182, alloy 600, electrochemical noise measurement (ENM), reversing DC potential drop method,PWR nuclear power plant, stress corrosion srackingFile: E11_908.pdf

RADIATION VULCANIZATION OF NATURAL RUBBER LATEX SENSITIZED WITH COMMERCIAL GASES

Chirinos Hugo and Lugão A.

Abstract: The industrial activities using natural rubber latex are fully compatible with rural areas in Amazon and otherplaces in Brazil, as well as in other tropical countries. However the classical sulfur vulcanization presents manyoccupational problems for the workers in rural areas. Radiation vulcanization of natural rubber latex is a much morefriendly process as sulfur compounds are not needed for crosslinking, although chemicals as acrylate monomers,particularly multifunctional acrylates are still used as sensitizers for radiation processes. Two commercial gases,acetylene and butadiene, were selected as sensitizers for the radiation vulcanization of natural rubber latex instead ofacrylates. These gases accelerate the crosslinking rates of the cure process and lower the radiation dose required toachieve vulcanization of natural rubber latex and improve the mechanical properties to reduce the tackiness of rubbergoods.Keywords: radiation vulcanization, natural rubber latex, polymer, gasesFile: E11_530.pdf

2002VI ENAN

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IRRADIATORSIRRADIATORSEE 1212IRRADIATORSIRRADIATORSEE 1212

IRRADIATORSIRRADIATORSEE 1212



inac2002VI ENAN

IrradiatorsINSTALL & OPERATE TYPE RADIATION PROCESSING PLANT FOR MARINE PRODUCTS

A.K.Kohli

Abstract: Marine products can be carrier of several pathogens. Radiation processing is a very useful technique thatis used to eliminate pathogens and also to extend shelf life of fresh fish. For marine products three processes areinvolved namely: Radurization to pasteurize fresh chilled fish for extending shelf life; Radicidation to sanitize frozenfishery products by elimination of pathogenic microorganisms and Radiation Disinfestations to eliminate insectsfrom dehydrated fishery products. The paper brings out conceptual design of a compact radiation processing plantthat can cater to all the three processes. The design is different from conveyor type of designs. The design is speciallyconfigured to maintain the temperature of frozen products and overdose ratio within limits specified. The throughputdepends upon the source strength, type of product, the size of box and its configuration in which these could bearranged. The design has many features, which make it a very safe, convenient and economical method for processingof such items or for that matter all the food products, which are amenable for radiation processing.Keywords: irradiator, marine products, install & operate, inherently safe, modularFile: E12_444.pdf

DESENVOLVIMENTO E IMPLANTAÇÃO DE UM IRRADIADOR MULTIPROPÓSITO

DE COBALTO-60 TIPO COMPACTO

Paulo Roberto Rela, Wilson Aparecido Parejo Calvo, Francisco Edmundo Springer,Nelson Minoru Omi, Fábio Eduardo da Costa, José Mauro Vieira e Leonardo Gondim de Andrade e Silva

Abstract: The Center of Radiation Technology, at Institute of Energy and Nuclear Research developed a new design ofCompact Multipurpose Irradiator of Cobalt-60, with national technology and maximum capacity of 37PBq. The conceptionof this new industrial irradiator succeeds the same trends of the small commercial irradiators available in the market,but with the advantage to process the products continually. The Radioactive Installation will be used as a demonstrationfacility and also by the scientific community to develop new products and processes applying radiation technology.Moreover, this installation will assist the users on validation process when small volumes are handled and also onqualification of products on radiation processing where small volumes are handled that becomes economicallyimpracticable for the existing contract service of large industrial gamma irradiator in Brazil.Keywords: multipurpose irradiator, gamma irradiator, compact irradiator, cobalo-60 irradiator, gamma facilityFile: E12_501.pdf

O AUMENTO DA POTÊNCIA DO REATOR TRIGA IPR-1:NOVAS PERSPECTIVAS DE ATIVIDADES

Fausto Maretti Júnior e Paulo Fernando Oliveira

Abstract: The IPR-R1 TRIGA MARK I Reactor is installed at the Nuclear Technology Development Center, originallyInstitute of Radioactive Research, in Belo Horizonte, Minas Gerais, since November 06, 1960. At the beginning itoperated producing isotopes for different uses and later was used in large scale to another purposes like NAA andnuclear power plant operators training. Dozen of master and doctor degree theses were developed using the reactorand many courses were applied with its use.Through the years many increases were introduced at the reactor and its auxiliary systems, to provide better use andoptimization of its operation performance and safety. The reactor, now with 42 years of use, have a upgrade programto increase its power level to 250 kW, that will permits increase the nuclear applications.The documents of the reactor, as an Operation Manual, Safe3ty Analysis Report, Emergency Plan and all proceduresrelated to the operations are ready. By the middle of 2002 the reactor will operate to 250 kW, in the same year that theCenter completes 50 years of operationThis paper presents a description of all uses of the reactor in the last years and comments about the possibilities ofnew uses to the reactor in field of the nuclear applicationsKeywords: research reactor, activation analysis, radioisotopes, environment, reactor usesFile: E12_564.pdf

2002VI ENAN

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LICENSING ANDLICENSING ANDREGULATIONS OFREGULATIONS OFRADIOACTIVERADIOACTIVEINSTALLATIONSINSTALLATIONSEE 1313LICENSING ANDLICENSING ANDREGULATIONS OFREGULATIONS OFRADIOACTIVERADIOACTIVEINSTALLATIONSINSTALLATIONSEE 1313

LICENSING ANDLICENSING ANDREGULATIONS OFREGULATIONS OFRADIOACTIVERADIOACTIVEINSTALLATIONSINSTALLATIONSEE 1313



inac2002VI ENAN

Licensing and Regulations of Radioactive InstallationsALGUNS ASPECTOS LEGAIS RELACIONADOS À IMPLANTAÇÃO NO BRASIL DAS RECOMENDAÇÕES

DA AGÊNCIA INTERNACIONAL DE ENERGIA ATÔMICA RELATIVAS A PROTEÇÃO RADIOLÓGICA

Arnaldo Mezrahi, Gilberto Cardoso de Matos, Patricia Wieland

Abstract: The National Nuclear Energy Commission (CNEN) - the Brazilian nuclear regulatory authority- applies thebasic guidelines regarding Radiation Protection (CNEN standard NE-3.01) in force since June 1988, for the licensingand control of nuclear, industrial, medical and research facilities, as well as for the safety of sources and for radioactivematerial transportation. In 1996, the IAEA published a new recommendations that established patterns for protectionagainst ionizing radiation and for the safety of radiation sources and recommended Member States to adopt them.The adoption of the IAEA document, namely Safety Series 115, by a member state, does not imply to follow the wholetext. The application of IAEA recommendations, contained in its documents, should take into consideration theautochthonous characteristics of each Member State. The Safety Series 115 has a very broad scope involvingrecommendation to countries at different development stages, especially those that do not even have a nuclearregulatory authority. In the specific case of Brazil, besides its advanced technological level, there exists a very complexand effective legal framework that hinders the establishment of norms and regulations regarding radiation protectionguidelines. Therefore the direct application of the IAEA’s recommendations requires a very careful legal evaluation inorder to avoid conflicts of competence and duplication of efforts among the different involved authorities. This paperpresents some of the important legal aspects especially in what concerns CNEN’s competence, which is responsiblefor the issuance of the new radiation protection guidelines in accordance with the legislation.Keywords: CNEN‘s Legal Competence; Radioactive Facilities; Safety Series 115File: E13_718.pdf

MODELOS PARA ANÁLISE DE CONSEQÜÊNCIA DE ACIDENTES APLICADOS AOS PROCESSOS DELICENCIAMENTO DE INSTALAÇÕES NUCLEARES, RADIATIVAS E INDUSTRIAIS CONVENCIONAIS

Murillo Senne Jr., Vanderley de Vasconcelos, Elizabete Jordão

Abstract: The industrial accidents happened in the last years, particularly in the eighty’s decade, had contributed in asignificant way to call the attention to government authorities, industry and society as a whole, demanding mechanismsfor preventing episodes that could affect people’s safety and environment quality. Techniques and methods alreadythoroughly used in the nuclear, aeronautic and war industries were then adapted for performing analysis and evaluationof the risks associated to other industrial activities, especially in the petroleum, chemistry and petrochemical areas.Some models for analyzing the consequences of accidents involving fire and explosion, used in the licensing processesof nuclear and radioactive facilities, are presented in this paper. These models have also application in the licensingof conventional industrial facilities.Keywords: consequence analysis, risk analysis, accident analysis, fire, explosionFile: E13_039.pdf

METODOLOGIA PARA AVALIAÇÃO DE RISCOS DE INSTALAÇÕES NUCLEARES

Vanderley de Vasconcelos, Murillo Senne Jr., Elizabete Jordão

Abstract: Both the licensing standards for general uses in nuclear facilities and the specific ones require a riskassessment during their licensing processes. The risk assessment is carried out through the estimation of bothprobability of the occurrence of the accident, and their magnitudes. This is a complex task because the great deal ofpotential hazardous events that can occur in nuclear facilities difficult the statement of the accident scenarios. Thereare also many available techniques to identify the potential accidents, estimate their probabilities, and evaluate theirmagnitudes. In this paper is presented a new methodology that systematizes the risk assessment process, and ordersthe accomplishment of their several steps.Keywords: risk analysis, methodology, nuclear facilitiesFile: E13_075.pdf



inac2002VI ENAN

ESTIMATIVA DE DISTÂNCIA FINAL DE PERIGO EM RAZÃO DE LIBERAÇÕES ACIDENTAIS DE SUBSTÂNCIASTÓXICAS NA ATMOSFERA

Arivaldo Morais do Sacramento, Murillo Senne Jr e Vanderley de Vasconcelos

Abstract: This paper provides some easy-to-use equations, which provide quick, realistic estimates of dispersiondistances resulting from accidental airborne releases. Distance to toxic endpoint is the maximum dispersion distancefor which resulting, airborne chemical concentrations would be in excess of specified exposure levels; broadlyspeaking accidental releases of toxic chemicals to the atmosphere can occur in urban or rural areas, either duringthe daytime or nightime; this artical focuses only on urban releases and uses Briggs sigma functions. Similar analysiscan be developed for rural area and for different sigma functions e.g. Pasquill-Gifford sigmas and Jülich sigmas.Keywords: harzard distances, dispersion, accidental releases, air pollutionFile: E13_078.pdf

SISTEMA DE CONTROLE E CONTABILIDADE DE MATERIAIS NUCLEARES NO IPEN-CNEN/SP

José Adroaldo de Araujo e Cyro Teiti Enokihara

Abstract: The history, requirements, organization, and operation of the State System of Accounting and Control (SSAC)from the Institute for Energetic and Nuclear Research (IPEN-CNEN/SP) are described. The implementation systemat the institution take into consideration the national and international safeguards requirements. It has started by thenuclear material (U, Pu and Th) physical inventory taking, including their provenance and transformation. The earliercomputerized accounting system used for control has been replaced by a new one developed by the National Authority(CNEN/CSG). The optimized system has more flexibility, giving a more effective answer to any occured change onMaterial Balance Area. The present system make use of an effective methodology.Keywords: safeguards, accounting, control, nuclear materials, inspection.File: E13_768.pdf

CERTIFICAÇÃO DO ATENDIMENTO AOS REQUISITOS DE SEGURANÇA E RADIOPROTEÇÃO PELASINSTALAÇÕES NUCLEARES E RADIATIVAS DA CNEN

Jane Shu, Arnaldo Mezrahi, Patricia Wieland

Abstract: The certification process to which the nuclear and radioactive installations belonging to Brazilian NationalNuclear Energy Commission, CNEN, are submitted allows to ensure that those installations comply with safety andradiation protection requirements established in the country, aiming at the protection of the workers, the environmentand the public. The Normative Instruction IN-001/94, “Certification of Compliance with Safety and Radiation ProtectionRequirements by the Nuclear and Radioactive Installations of CNEN”, issued by CNEN, establishes guidelines forthe certification process of compliance with the mentioned of safety and radiation protection requirements whichare strict as the ones for the existing Nuclear Installations and Radioactive Installations in Brazil. The criteria forsafety assessments of CNEN’s installations is also similar to which is applied in other facilities, which are submittedto the licensing process or authorization by CNEN. The main difference is the issuance of Certificates by the NuclearSafety and Radiation Protection Directorate, DRS, of CNEN, after the accomplishment of established safetyrequirements, instead of several administrative acts issued by CNEN.The certification process for each installation either nuclear or radioactive involves the submission by the applicantto the Radiation Protection and Nuclear Safety Directorate of CNEN- DRS, for assessment and approval, safety analysisreports and operational procedures For the certification of the whole institution it has to be presented, by the applicant,for analysis, additional documents, such as: General Report of the Institution, Emergency Plan, Physical ProtectionPlan, Radiation Protection Plan and Environmental Monitoring Program. After assessment and approval of thewhole documentation, it is issued by DRS, as applicable, the following documents: approval certificates for the facilitiesor institutions, license of operator of nuclear reactor and certificate of the qualification of radiation protection officers.Keywords: nuclear, radioactive installations, safety assessment, governmental research institutesFile: E13_738.pdf

Licensing and Regulations of Radioactive Installations



inac2002VI ENAN

EXPLORAÇÃO DO FEIXE DE NÊUTRONS EMERGENTE DO REATOR

TRIGA IPR-R1 (MARK-I) PARA APLICAÇÕES GERAIS

Antonella Lombardi Costa, Valter Alves Amorim, Zildete Rocha e Roberto Stasiulevicius

Abstract: At present, there are four devices in the TRIGA IPR-R1 reactor at the CDTN for sample irradiation, but inthese irradiators the mass and form of the sample are limited to the standardized dimensions of the irradiation receivers.Besides, the irradiation is made under, approximately, 5 meters of water, complicating the access. However, throughan beam neutron extractor arrangement, it is possible to irradiate larger samples, in a local more accessible andwith minimum interference of fast neutrons facilitating to measure neutronic parameters, to do crystals neutrondifraction, to obtain neutron radiographs, among other applications. This work presents results of the experimentalNeutron Extractor arrangement in TRIGA reactor at CDTN.Keywords: collimator, TRIGA, flux density, IPR-R1, neutron beam.File: E13_215.pdf

Licensing and Regulations of Radioactive Installations

2002VI ENAN

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NUCLEARNUCLEARAPPLICATIONSAPPLICATIONSMANAGEMENTMANAGEMENTEE 1414NUCLEARNUCLEARAPPLICATIONSAPPLICATIONSMANAGEMENTMANAGEMENTEE 1414

NUCLEARNUCLEARAPPLICATIONSAPPLICATIONSMANAGEMENTMANAGEMENTEE 1414



inac2002VI ENAN

Nuclear Applications ManagementIDENTIFICATION OF ORGANIZATION VALUES ACCORDING TO THE PERCEPTION OF THE EMPLOYEES

OF THE ENERGETIC AND NUCLEAR RESEARCH INSTITUTE- IPEN

Márcia Orrico Pupak; Edson Roman; José Augusto Perrota; Ana Cláudia M. Feher; Adriana B. V. B. Magalhães;Maria Lúcia Gili Massi; Antonio Cesar Amaru Maximiano; José Roberto Rogero

Abstract: The purpose of this research was to identify the organizational values, according to the perception ofemployees of the Energetic and Nuclear Research Institute - IPEN. The instrument used in this research was the“Organization Values Questionnaire”. This survey contains a list with 38 values, each followed by a parentheticalexplanation that clarifies its meaning. Respondents rated each value on a 6-point scale from, less important (0) tovery important (6), in response to the question: How important is each values for the organizational life? This evaluationshould be done in two levels of perception: REAL plan, and IDEAL plan. The population investigated was constituentby 1000 employees. The total of 553, i.e. 55.3%, questionnaires were turned back. As result, it was identified on REALplan, values related to coefficient as EFFICIENCY, EFFICACY and MANAGEMENT. On IDEAL plan, they were relatedto EMPLOYEE VALORIZATION and INOVATION coefficient. As consequence, the institutional commitment is toform working groups, inside the Strategic Planning Revision, in order to elaborate the Core Values, based on thevalues identified on this research.Keywords: organizational values; identification of values; IPEN values.File: E14_487.pdf

IMPLANTAÇÃO DE MÉTODOS DE ENSINO À DISTÂNCIA PARA USO EM INSTITUTOS

DE PESQUISAS TECNOLÓGICAS UTILIZANDO COMO MEIO À INTERNET

Valdéres Fernandes Pinheiro, Aucyone Augusto da Silva, José Roberto Rogero

Abstract: The e-learning is a subject that is attracting all teaching institution at the present because the number ofinterested student is growing in the same proportion of communication technology facilities is getting more easy andlow cost to be used. Most of universities and colleges are adapting their classes to on-line and a new market isgrowing very fast all around the world. Of course that these institutions are also worried about the quality of the onlineteaching materials and also methodologies used to delivery them.This paper will explore some models that are being used in online classes and also will present the contribution ofthis research in developing a new teaching model that will applied in the technological research institutions likeIPEN/CNEN-SP. This model should be technical and economical self-sufficient and it is emphasized in the customerstechnological needs. The model’s variables are interactivity levels with the technology, use of internet tools (chat,forum, discussion list), teacher and student relationship, knowledge evaluation, etc.Keywords: e-learning, knowledge, technology, internet; methodologies.File: E14_161.pdf

LUGAR DE PARADOXOS PELOS CAMINHOS DISCURSIVOS DO SETOR NUCLEAR

Ioná Ponce Pereira

Abstract: This article, taking into consideration the Critical Discourse Analysis and the French Discourse Analysis,examines the relationship between the public image and the acceptance of nuclear energy and the discourse andarguments commonly employed by the nuclear institutions, in Brazil, in favor of a widespread use of nuclear energy bythe society. In doing so, the article discusses aspects such as the social memory, intertextuality and image constructionand shows that the pro-nuclear arguments and the discourse produced by the institutions of the nuclear sector, in itsessence, carries much of the ideas and concepts frequently utilized by the anti-nuclear entities. This fact, instead ofproviding a positive view, or even a correct understanding of the nuclear area, reinforces the negative image of nuclearenergy witch is reflected in its public acceptance by the society.Keywords: nuclear discourse, image construction, public image, acceptance of nuclear energy.File: E14_673.pdf



inac2002VI ENAN

Nuclear Applications ManagementGESTÃO DE UMA UNIDADE DE ENSINO NA ÁREA NUCLEAR

Fernando José Firmino Moreira, Martha Marques Ferreira Vieira e Afonso Rodrigues de Aquino

Abstract: It is presented the development of an adequate tool to control and manage a nuclear education area unit.This unit, the Education Division, is continuously developing, requiring the creation of new mechanisms to keep thecustomer expectation and needs satisfied. The evolution of this unit is correlated to the implemented improvementthat, by its proper dynamics, absorbs the continuos activities increase. The principal results are presented in tablesand figures.Keywords: management; learnig; nuclearFile: E14_551.pdf


INAC 2002 - INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE Authors # 1

inac2002VI ENAN

Authors

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Abdalla, Adibe Luiz

Abrão, Alcídio

Acar, Maria Elizabeth E. Dias

Adachi, Eduardo MakotoAfarideh, Houssein

Aghina, Maurício Alves da Cunha

Akil, Mohamed

Albinati, ClaudiaAlcarde, André R.

Aleixo, Luiz Cláudio

Alencar, Marcus A. Vallim deAlfenas, Elizabeth Rodrigues

Aliste, Antonio João

Almeida, C. E. de

Almeida, Cláudio Calixto deAlmeida, Claudio Domingues de

Almeida, Gevaldo Lisboa de

Almeida, Maria Candida Moreira de

Alonso, Thêssa CristinaAlves, Antônio Sérgio De Martin

Alves, José Marcos

Aly, Omar Fernandes

Amaral, Angela MariaAmaral, Eliana Corrêa da Silva

Amorim, Valter Alves de

Andrade, Antero Silva Ribeiro deAndrade, Arnaldo H. Paes de

Andrade, Lídia Maria

Andrade e Silva, Leonardo G. de

Andrade Junior, Heitor Franco deAndrello, Avacir Casanova

Anjos, Marcelino José dos

Antonino, Antonio Celso Dantas

Antonucci, Jane BenattiAoki, Idalina Vieira

Aoki, Pedro Eiti

Aparicio, Eric Estévez

Appoloni, Carlos Roberto

Aquino, Afonso Rodrigues de

Aquino, Kátia Aparecida da SilvaAragão, Pedro Henrique Arruda

Araújo, Elaine Bortoleti de

Araújo, Elmo Silvano de

Araujo, José Adroaldo deAraújo, Radier Mário S. de

Araujo, Sumair Gouveia

Ardisson, José Domingos

Armelin, Maria José AguirreAronne, Ivan Dionysio

Arruda Neto, João Dias Toledo de

Assis, Adilson de C. deAvelar, Artur Canella

Avino, Simone

Azeredo, Adelaide G. da Fonseca

Azevedo, Walter Mendes de

Bacchi, Osny Oliveira Santos

Banchik, Abraham DavidBaptista Filho, Benedito Dias

Barbosa, Ademarlaudo França

Barbosa, João Batista Santos

Barboza, Marycel Figols deBarreto, Sônia Regina Giancoli

Barreto, Vera Lúcia Branco

Barreto, Wagner JoséBarria, Jose Javier Gomez

Barros, Dário Sarmento de

Barroso, Regina Cély

Bartoly, FlaviaBatagello, Hugo Henrique

Batista, Delano Valdivino Santos

Bavaresco, Vanessa Petrilli

Beceiro, Alvaro R.Becker, Paulo Henrique Bastos

Beguin, Philippe

Bellido, Luis Fernando

Bellido Jr., Alfredo Victor

A

B

Beltrán, Jesús

Bendassolli, José AlbertinoBernardes, Dulcila Maria L.

Bernardo Filho, Mário

Berne, Philippe

Bernedo, Alfredo Victor BellidoBertozzi, Dênis A.

Bezerra, Andrezza de Lemos

Bezerra, José Henrique B.

Bianchi, DanielBicudo, Milena

Bitelli, Ricardo d’Utra

Boaretto, Antonio EnediBoaretto, Rodrigo Marcelli

Boasquevisque, Edson M.

Bonassi, José Aurélio

Bonetti, Franco ClaudioBonifácio, Daniel. A. B.

Borrely, Sueli Ivone

Borroto, J.

Bortoletto Júnior, Milton JoséBossio, Francisco

Botrel, Neide

Bourroul, Selma Cecília

Braga, A.P.Braga, Cláudia Cristina

Braga, João Pedro

Brancaccio, FrancoBrandão, Luis Eduardo Barreira

Braz, Celso Eduardo

Braz, Delson

Brienza, Sandra Maria BoscoloBuchpiguel, Carlos Alberto

Bueno, Ives Cláudio da Silva

Burgos, Manuel R.

Burnett, William CraigBusch, Miliane

Bustillos, José Oscar Vega



inac2002VI ENAN

AuthorsA B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CCabral, Tânia SchirnCabral Filho, Sergio Lucio SalomonCalçada, Luís A.Caldas, Linda Viola EhlinCaldeira, Alexandre DavidCaldeira Filho, J.S.Calvo, Wilson Aparecido ParejoCamargo, Fábio deCambises, Paulo Brasil S.Camillo, Maria Aparecida PiresCamilo, Ruth LuquezeCampos, E. F.Campos, Letícia LucenteCampos, Maria Cristina AguiarCampos, Tarcísio P. Ribeiro deCanesin, Fátima de PaivaCárdenas, José Patrício NáhuelCardoso, Domingos D'OliveiraCardoso, Elisabeth C.L.Cardoso, Isabel C. R. de AraújoCardoso, Ricardo de SouzaCaribé, Rebeka AlvesCarlos, Dionísio UendroCarneiro, Clemente J.G.Carneiro, MariângelaCarneiro, Orozimbo JosuéCarvalho, E.B.Carvalho, Elaine Farias N. BarrosCarvalho, Fátima Maria Sequeira deCarvalho, GilbertoCarvalho, Laércio LaraCarvalho, Marcelo Souza deCarvalho, Maria Angélica Garcia deCarvalho, Ricardo Pinto deCastillo, SoniaCastro, José Geraldo deCastro, Walber AmorimCatanho, Maria Teresa J. de A.

Catharino, Marília G. M.Cavalcante, Jonas SoaresCazotti, Raul I.Centner, BaudouinCestari, Ana CristinaCherbakian, Eloisa HelenaChernicharo, Carlos C.Chin, GinaChirinos, Hugo

Cipriani, MoacirClaro, Luiz HenriqueCoimbra, Melayne MartinsColaço, WaldeciroColombo, Maria AparecidaColturato, Maria TerezaConceição, Edijane Guimarães daConti, Claudio CarvalhoConti, Luiz Fernando C.Cordeiro, Marta NascimentoCorrales, EnriqueCorrêa, Alan Anatoly de SouzaCorrêa, Rosangela da SilveiraCorrechel, VladiaCosta, Alessandro Martins daCosta, Ana Cristina Moraes daCosta, Antonella LombardiCosta, Carlos Alberto RodriguesCosta, Elizabeth Cristina Soares daCosta, Fábio Eduardo daCosta, IsoldaCosta, Zélia M. daCotrim, Marycel Elena BarbozaCouceiro, José NelsonCoutinho, Célia Maria CamposCozzolino, Silvia M. F.Crispim, Verginia ReisCruz, J.Cruz, Manoel Tiago Freitas daCuchet, Jean-MarieCunha, Edgar Ferrari da

D

Cunha, Ieda I. L.Cunha, José Waldemar S. Dias daCunha, Kenya Dias daCunha, Paulo Gonçalves da

Dalaqua Jr., LeonardoDalmázio, IlzaDanda, Karina Polo NorteDantas, Ana Letícia A.Dantas, Bernardo MaranhãoDantas, Elizabeth Sonoda KeikoDelgado, José UbiratanDelincée, HenryDeppman, A.Deshpande, AshokDetilleux, MichelDias, Ailton FernandoDias, Artur FlávioDias, Carla Roberta de B. R.Dias, Cíntia MelazoDias, Diones AparecidaDias, Fábio C.Dias, HélioDias, Humberto GalvãoDias, Katia R.Dias, Mauro da SilvaDíaz, Marlén PérezDíaz, Reinaldo RoqueDiniz, Carlos RibeiroDiré, Glaucio F.Diz, RicardoDomarco, Rachel ElisabethDomingues, Maria de Lourdes F.Domínguez, J.Duarte, Celina LopesDuarte, Deborah C. S.Dutra Neto, Aimoré



inac2002VI ENAN


Echeverría, Hernán E.Eiras, Maria Izabel O.Enokihara, Cyro TeitiEnsaf, Mohammad RezaEnzweiler, JacintaEstrada, Júlio José S.Evangelista, Renato A. de OliveiraEvora, Maria Cecília

Farias, Luciana AparecidaFarias, Terence P.Fávaro, Déborah Inês TeixeiraFederico, Claudio AntonioFeher, Ana Cláudia M.Feher, AnselmoFelinto, HermiFelinto, Maria Claudia F. da CunhaFenilli, Tatiele Anete BergamoFerenaz, GuillermoFernandes, Elisabete A. de NadaiFernandes, Horst R. S. MonkenFernandes, OctávioFernandes, PauloFernandes Neto, José MariaFerracini, RicardoFerreira, Ana Cristina de MeloFerreira, João CoutinhoFerreira, Marina LimaFerreira, Rubemar de SouzaFerreto, Hélio Fernando RodriguesFerro, Waldir PedroFigueira, André LuizFigueira, Rubens C. L.Figueiredo, Ana Maria GracianoFigueiredo, Maria ElizabeteFigueredo, NancyFlores, Alejandra Viviana

Flores, WalterFonseca, Evaldo Simões daFonseca, Luis Eduardo C.Fonseca, Thiago Pavan BarciaForbicini, Christina. A. L. G. O.Fortes-Dias, Consuelo LatorreForti, José AndersonFranchescin, Marcelo J.Franco, Milton BatistaFranklin, Mariza RamalhoFreijo, Jose LuisFreire Júnior, MurilloFreitas, Antonio Alves deFreitas, Rosimeire de SouzaFuente, Guilhermo De LaFuga, AlessandraFukuma, Henrique TakujiFulfaro, RobertoFurieri, Rosanne C. de A. AmadoFurlan, AdrianaFurtado, Valdecir Veronese

Gaburo, Janete CristinaGalante, Ana Maria SistiGalante, Ocimar LuizGalisteo Jr., Andrés JimenezGamboa, ReglaGarcia, F.García, Francisco Pablo RamírezGarcia, Marcelo BernardesGasparin, EleosmarGava, Glauber José de CastroGelen, A.Genezini, Frederico AntonioGeraldo, Luiz PauloGhilardi, EdsonGiné, Maria FernandaGobbo, Sarita PricilaGóes, Alfredo Miranda

Goes, Marcos Maciel deGomes, Ana Carla FernandesGomes, Heliana de AzevedoGomes, Maria L.Gomes, Nelson J. P. OlivaGomes, Paulo Maurício CostaGomes, Rosângela FátimaGómez, JoséGonçalez, Odair LelisGonçalves, Iraci Martinez PereiraGonçalves, Josemary Angélica C.Gonçalves, Mellentino BatistaGonçalves, S.Gonçalves, Sérgio AlvesGonzález, Gisela BarreraGonzalez, Wilma AraújoGouveia, A.N.Gouveia, Maximiniano Antônio G.Grecco, Cláudio H. dos SantosGregório, Maurício AbudGrossi, Fabio HenriqueGrynberg, Suely EpszteinGuapindaia, VeraGuedes, Elton CarvalhoGuedes, João B.Guedes, Selma Matheus LoureiroGuevara, Maria Victoria MansoGuimarães, Alexandre CássioGuimarães, Carla da CostaGuimarães, Celsa M. MaliskaGuimarães, LamartineGuimarães, Maria Inês Calil CuryGuimarães, Sandra da SilvaGupta, S. K.Gurgel, Maria Sylvia do AmaralGuzella, Marcia Flavia RighiGuzmán, Fernando

G

F

E



inac2002VI ENAN


Hacon, SandraHamada, Margarida MizueHaucz, Maria Judite AfonsoHauy Junior, EduardoHazin, Clovis AbrahãoHelene, O.A.M.Helou, Luiz CarlosHenríquez, Carlos A.Herdade, Silvio B.Herrerias, RosanaHerson, Marisa RomaHiramoto, Roberto MitsuyoshiHiromoto, GoroHonda, Neli K.Hwang, Suy F.

Iamashita, Célia OmineIgnoto, Raquel de FátimaIsiki, Vera Lúcia KeikoIslas, María Eugenia CortésIsoldi, Ana Beatriz GodoyIto, ToshimichiIwahara, Akira

Jacomino, Vanusa Maria FelicianoJalilian, Amir R.Jesus, Edgar Francisco Oliveira deJesus, Selma Parente deJordão, ElizabeteJorge, S.A.C.Julião, Ligia

Kamonseki, MassaoKanashiro, Fabio Y.Kelecom, Alphonse

Khoury, Helen JamilKira, Carmen SilviaKohli, A.K.Koskinas, Marina FalloneKramer, RichardKrug, Francisco J.

Lacerda, Marco Aurélio de SousaLainetti, Paulo Ernesto de OliveiraLandini, LilianeLaranjeira, Jane Maria GonçalvesLatini, Rose MaryLauria, Dejanira da CostaLavras, Wilson de OliveiraLazaro, GerardoLeite, Carlos V. BarrosLeite, Jaques C.Leite, Maria FátimaLeite, Simone C. A. L.Lemos, Francisco Luiz deLepki, VladimirLikhachev, V.P.Lima, Ana Lúcia Vilela PinheiroLima, Carla FlaviaLima, Elaine A.Lima, Fernando R. Andrade

Lima, Glaydes M.T.Lima, InayáLima, Ivânia Sores deLima, José FernandesLima, José Romualdo de SousaLima, Marco Antonio FrotaLima, Maria Elena deLima, Nelson Batista deLima, Ricardo de AndradeLima, Ruy B. deLima Filho, Guilherme LaurentinoLira, Carlos Alberto Brayer de O.Lopérgolo, Lilian Cristine

Lopes, FabioLopes, M.M.S.Lopes, Ricardo TadeuLopes, Valdir MacielLorenzetti, Solange GubbeliniLourenço, CiléaLourenço, Vera L.Lucena, Eder A.Lucinio, Elena Albeira GuiradoLudwig, Jaime L.Lugão, Ademar BenévoloLuna, Taciana Figueiredo

H

I

J

K

L



inac2002VI ENAN

Authors


Macacini, José FlávioMacedo, Pedro Ivo M. Tavares deMachado, Ana C. B.Machado, Luci Diva BrocardoMachado, Mariana de CarvalhoMachado Neto, LuizMaciel Netto, AndréMadi Filho, TuficMáduar, Marcelo F.Magalhães, Adriana B. V. B.Magalhães, Maisa HaidamusMagalhães, Wellington F. deMaia, Ana FigueiredoMaia, Elene Cristina PereiraMaihara, Vera AkikoMalagrino, WaldirMalheiros, Emiliane AdvínculaMaliska, C.M.Mannaerts, KoenManosso, Helena CristinaManso, Maria Vitória G.Mansuelle, PascalMantovano, José LuizManzini, AlbertoMarajofsky, AdolfoMarczewski, Barbara SzotMaretti Júnior, FaustoMaria, Isabella Clerici DeMarialva Neto, A. A.Marín-Huachaca, Nélida SimonaMarques, Leila SoaresMartinelli, Luiz AntonioMartinez, Luís G.Martin-Moutot, NicoleMartins, Elâine Arantes JardimMartins, Elisabeth FernandesMartins, Flaviano dos SantosMartins, M. N.Martins, Marcelo MarquesMarumo, Júlio TakehiroMassarani, Giulio

Massi, Maria Lúcia GiliMastro, Nélida Lúcia delMathor, Monica BeatrizMatos, Gilberto Cardoso deMatsuda, Andréa HarumiMatsuda, HyltonMattar Neto, MiguelMattos, Deise M.M.Mattos, Maria Fernanda S. S.Maurício, Claudia Lucia de PinhoMauro, Eduardo DiMautone, Caetano A.Maximiano, Antonio Cesar AmaruMazza, Marcelo G. G.Mazzilli, Barbara PaciMedeiros, Ilca Marli M. AmaralMedeiros, José Agostinho G. deMedeiros, Regina BitelliMeira, Nilton FerreiraMello, Rossana Corbo R. deMelo, Maria Norma deMelo, Maurício Antonio C. deMelo Jr., Luis A. S. deMendes, Bruno MeloMendes, Júlio CésarMendes, Vivian AMenegário, Amauri AntonioMenezes, Cláudio José MesquitaMenezes, Maria Ângela de B. C.Mengatti, J.Mesa, JoelMesquita, Andrea CercanMesquita, Carlos Henrique deMestnik Filho, JoséMezrahi, ArnaldoMiguel, Ronaldo AraújoMiller, MarceloMiraglia, JoséMiranda, Enrique Francisco PrietoMiranda, Jurema Aparecida deMiranda, Margareth Maria B. G.Miranda Junior, PedroMitake, Malvina Boni

Mitani, Solange E.Molnary, Leslie deMondino, Ángel VictorMoniz, Antonio CarlosMonte, Lauro José de BarrosMonteiro, Eduardo C.Monteiro, Paulo Roberto BuenoMonteiro, Roberto P. GuedesMoore, Willard S.Moraes, Fábio Alceu Akiyama deMoraes, Marco Antonio P. VieiraMoraes, Maria Cristina Franco deMoraes, Sam Lara deMoraes, VanessaMorais, Carlos AntônioMorales, Rudnei KaramMoralles, MaurícioMorcelli, Claudia Petronilho RibeiroMoreira, Anderson CamargoMoreira, Edson GonçalvesMoreira, Fernando José FirminoMoreira, Rubens MartinsMoreira, SilvanaMoreno, Elizabeth CastroMoreno, Mónica A.Moreno, Silvana R. F.Mori, Manoel NunesMori, YasuoMortatti, JeffersonMota, Helvécio CorreaMotta, Laura Maria Goretti daMoura, Eduardo deMoura, Egberto GasparMoura, Glaucio PereiraMoura, Sergio C.Moura Júnior, JoséMourão, Rogério PimentaMourão Filho, Francisco de A. AlvesMozeto, Antonio A.Munita, Casimiro S.Muraoka, TakashiMutis, Octavio P.

M



inac2002VI ENAN


N

O

P

Nair, S.Nalini Junior, Hermínio AriasNascimento, Edgar Vieira doNascimento, José Batista doNascimento, Marcos Roberto L. doNascimento, Nanci doNascimento, SheilaNascimento Filho, Virgílio F. doNavarro, Gustavo A.Nazco, J.Neumann-Cosel, P.vonNeves, Maria JoséNícoli, Iêda GomesNieto, Renata CorrêaNóbrega, Armi W. daNogueira, Cláudio AiltonNogueira, Guilherme de PáduaNolasco, Felipe RufineNouailhetas, YannickNovaes, Fernando ValadaresNozaki, JorgeNozella, Eduardo Fernando

Obadia, Isaac JoséOikawa, HiroshiOkazaki, KayoOkuno, EmicoOliveira, Antonio E. deOliveira, Arno Heeren deOliveira, Carolina B.Oliveira, Claudinéia Raquel deOliveira, Helder deOliveira, Icimone BragaOliveira, Joselene deOliveira, Larissa Conceição GomesOliveira, Laura C.Oliveira, Liana Macedo deOliveira, Luis Fernando de

Oliveira, Mara C.L.Oliveira, Mauro Vitor deOliveira, Mércia Liane deOliveira, Paulo FernandoOliveira, Ricardo M. deOliveira, Rodemir deOliveira, Sérgio Eduardo Martins deOliveira, Wagner dos SantosOliveira Neto, José Messias deOmi, Nelson MinoruOno, ShizucaOrgaz, MartinOsso Junior, João Alberto

Pacheco, Ana Paula LimaPaes, Paulo Cesar de ArrudaPaesano Junior, AndréaPaiva, Byanca ReginaPanzarini, Luz C. Gonzalez AlonsoParra, Duclerc FernandesPascholati, Paulo ReginaldoPasqualucci, Carlos A.Passos, Erivaldo Mário dosPecequilo, Brigitte Roxana SoreanuPedreira, Walter R.Pedrero, ZoynePeixoto, Cláudia MarquesPeixoto, João E.Peixoto, José Guilherme PereiraPeixoto, Tiago de PaulaPelicho, Aléscio FachimPellegrinotti, Daniel C.Pellón, I. AlvarezPenatti, Claudimir PedroPenque, EmersonPeraza, Eduardo HerreraPereda, Claudio B.Pereira, Elaine Henriques TeixeiraPereira, Elton GomesPereira, Ioná Ponce

Pereira, José dos Santos JorgePereira, Marco A. G.Pereira, Maria da Conceição CostaPereira, MárioPereira, Marivalda M.Pereira, Nilda Sosa dePereira, Wagner de SouzaPeres, Ana CláudiaPeres, Marcos A. L.Perez, Carlos AlbertoPérez, Daniel VidalPérez, E.Pérez, LidiaPerin, Tiago RebelloPerrota, José AugustoPetroni, Sérgio Luis GracianoPinheiro, Valdéres FernandesPino, Eddy SeguraPinto, Amenônia Maria FerreiraPires, José AntônioPires, Luiz F.Pires, Luis Fernando GonçalvesPires, Maria Aparecida FaustinoPizarro, LuisPlá, Rita R.Poirior, Andre Pierre ProusPolônio, Maria LúciaPoquet, IsabelPortezan, OtávioPotiens, Maria da Penha A.Potiens Júnior, Ademar JoséPovinec, Pavel P.Prado, Thaís C.Prestes, Clélber VieiraPrimavesi, OdoPuget, Flávia P.Pupak, Márcia OrricoPy Junior, Delcy de Azevedo



inac2002VI ENAN


Queiroz, Carlos Alberto da SilvaQueiroz Neto, João C.Quinelato, Antonio Luiz

Rabi, José AntonioRafiei, HamidRamírez, MartaRamos, Anthenor C.Ramos, Manoel Mattos OliveiraRampazo, Luís Gustavo de LázaroRatto, Norma R.Rebelo, Ana Maria de O.Regueiro, José L.Reis, Luiz Carlos AlvesReis, Marcelo de CarvalhoReis Júnior, Aluísio SousaRela, Paulo RobertoRenterghem, Catherine VanRezende, Letícia DrummondRibeiro, Andreza PortellaRibeiro, Fernando BrenhaRibeiro, Fernando CastilhoRibeiro, João Luiz B.Ribeiro, Márcia AlmeidaRibeiro, MarisildaRichter, A.Rigolon, Leda Shizue YanagiharaRio, Mônica Pires doRizo, Oscar DíazRoberto, Wanderley dos SantosRocha, Felícia Del GalloRocha, Hélio Fernandes daRocha, Henrique de SouzaRocha, Rafael Fernandes daRocha, Soraya Maria Rizzo daRocha, Wilson Roberto Dejato daRocha, Zildete

Rochedo, Elaine Rua RodriguezRódenas, CarmenRodrigues, Demerval LeônidasRodrigues, Laura NatalRodrigues Júnior, Ary de AraújoRodrigues Júnior, OrlandoRodríguez, Carlos HernándezRodriguez, OscarRogachevskaya, Liliya M.Rogero, José RobertoRogero, Sizue OtaRoman, EdsonRomanelli, Maria FernandaRomero Filho, Christovam RomeroRoque, Mário LúcioRosa, Luiz Antonio Ribeiro daRosário, Salmo Cordeiro doRossete, Alexssandra L. R. MolinaRossi, Alexandre MaltaRostelato, Maria Elisa C. MartinsRoushanfarzad, PejmanRuiz, Carmen Silvia BentivoglioRuiz, MiriamRzyski, Barbara M.

R

Q



inac2002VI ENAN

Authors


Saad, Antonio RobertoSabato, Susy FreySabino, Claudia de Vilhena SchayerSabio, ManuelSacramento, Arivaldo Morais doSaddadi, FaribaSaiki, MitikoSaito, Roberto TatsuyaSakagami, Maureen K.Salas, Humberto TerrazasSaldiva, Paulo H. N.Salvador, Marcos JoséSalvador, Vera L. R.Samad, Ricardo E.Sampa, Maria Helena de OliveiraSamper, RosaSampieri, FrançoisSanches, M.Sanchez, AndreaSantos, Adimir dosSantos, Balbino L. dosSantos, Bruno ZolotareffSantos, Cecilia MartinsSantos, Eliane Eugênia dosSantos, Gelson Pinto dosSantos, Gonçalo Rodrigues dosSantos, José Cesar Rodrigues dosSantos, Joyra A.Santos, Luiz Antonio Pereira dosSantos, Marcelo Damy de SouzaSantos, MaristelaSantos, Paulo de OliveiraSantos, Raquel Gouvea dosSantos, Rosana Nunes dosSantos, Teresa Cristina dosSantos, Walter MenezesSantos Filho, Sebastião DavidSaraiva, Elisabete de Santis Braga eSarkis, Jorge Eduardo de SouzaSarma, V. V.Sarries, Gabriel AdrianSartoratto, Bárbara Eliodora LeiteSartoratto, MarceloSasaki, José Marcos

Sassine, AndréSato, Ivone MulakoScapin, Marcos A.Scapin, Valdirene O.Scheibel, VivianeSchor, PauloSciani, ValdirSeagar, MichaelSeda, Rosângela Pinto GuimarãesSemmler, RenatoSeneda, José AntonioSenne Jr., MurilloShafiee, AbbasShtejer, KatherinShu, JaneSígolo, Joel BarbujianiSilva, Ademir Xavier daSilva, Aucyone Augusto daSilva, Carlos Borges daSilva, Cleide Moreira daSilva, Constância P. Gonçalves daSilva, Cosme Norival Mello daSilva, Eder F.Silva, Edir Nepomuceno daSilva, Eliane Magalhães Pereira daSilva, Erik Gonçalves Holder daSilva, FábioSilva, Iran José Oliveira daSilva, Isabel R.Silva, Ivandro de França daSilva, Josenilda Maria daSilva, Luciana MariaSilva, Luzeli Moreira daSilva, Márcia Augusta daSilva, Maria Isabel Barbosa daSilva, Mário R. de S.Silva, Mary Lucia daSilva, Mônica Aguiar Leobino daSilva, Nestor Conceição daSilva, Nivaldo Carlos daSilva, Paulo Sergio Cardoso daSilva, Richard M. da Cunha eSilva, Rosemary E. daSilva, Tânia Valéria daSilva, Teógenes Augusto daSilva, Teresinha de Moraes da

S Silva, Valdir Cosmos daSilva Júnior, Eronides Felisberto daSilveira, Carlos Gaia daSilveira, Catarina R. daSilveira, Maria de Fátima GaldinoSilveira, Renata Ramos daSilvério, Patrícia F.Simão, Kelly CristinaSimón, Maria JosefaSiqueira, Onofre S.Smolders, Erik Eduard ThomasSoares, Adalberto JoséSoares, Eufemia PaezSobrinho, Gilmar A .Solci, Maria CristinaSolimanian, A.Solis, JoseSomayajulu, B. L. K.Somessari, Elizabeth S.Sordi, Gian-MariaSorel, YvesSoto, J.Sousa, Eduinetty Ceci P. M. deSousa, José Silva deSousa, Wanderson O.Souza, Altair Drumond deSouza, Cléber Nogueira deSouza, Divanizia do NascimentoSouza, Fabiane Ferreira deSouza, Gleison deSouza, Grace Mary Lima deSouza, Jair Albo Marques deSouza, Jeffson Cavalcante deSouza, Maria Ines Silvani deSouza, Mário César B. deSparovek, GerdSpitz, Henry B.Spoto, Marta Helena FilletSpringer, Francisco EdmundoStasiulevicius, RobertoStuddert, Guillermo A.Suguihiro, Natasha MidoriSumita, Nairo M.Sumiya, L. C. A. A.Suzuki, Mirian FussaeSzieber, Cristian



inac2002VI ENAN

Authors


Taddei, Maria Helena Tirollo

Takata, Marcelo Kazuo

Tauhata, LuizTavaraya, André Kazuo

Tavares, Glauco Arnold

Teixeira, Gleuber Mariano

Teixeira, Maria InêsTello, Clédola Cássia Oliveira de

Terence, Mauro César

Terini, Ricardo AndradeTessler, Moyses G.

Tobias, Carmen Cecília Bueno

Todo, Alberto Saburo

Tomimasu, SumieTonolli, Joe

Toyoda, Eduardo Yoshio

Trivelin, Paulo César Ocheuze

Troncone, Lanfranco R. P.

Valente, Eduardo Sarmento

Valerio, Mário Ernesto GiroldoValério, Rosa Ariano

Vanderperre, Serge

Vanhaeverbeek, ChristineVanin, Vito Roberto

Vasconcellos, Mari Estela de

Vasconcellos, Marina Beatriz A.

Vasconcelos, Danilo C.Vasconcelos, Elder A. de

Vasconcelos, Vanderley de

Vasques, Francisco M Feijó

Vaz, Antonio Carlos AlvesVeado, Júlio César Cambraia

Veado, Maria Adelaide R. V.

Vela, Mariano

Venturini, LuziaVetere, Maria Inês C.

Viana, Aline Gonzalez

Vianna, Cristina RoscoeVicente, Roberto

Vico, Elena

Videla, Cecília

Viegas, Claudio Castelo BrancoVieira, Fernando Fabris

Vieira, José Mauro

Vieira, José Wilson

Vieira, Martha Marques FerreiraVieira, Thais Molina

Vieira, Wilson José

Vilela, Éudice CorreiaVillavicencio, Anna Lucia C. Haasis

Vital, Helio de Carvalho

Viterbo, Vanessa C.

Vitoreti, Cristiane da SilvaVitti, André Cesar

Vitti, Dorinha Miriam Silber Schmidt

Vives, Ana Elisa Sirito de

Vivolo, VitorVoi, Dante Luiz

Wacha, ReinaldoWada, Luciana Yukie

Wagener, Klaus

Walder, Júlio Marcos MelgesWasserman, Julio Cesar

Wasserman, Maria Angélica

Wiebeck, Hélio

Wieland, PatriciaWildhagen, Glória Regina da Silva

Wilkinson, María Victoria

Xavier, Osvaldo

Yamaura, Mitiko

Yamazaki, Ione Makiko

Yoriyaz, HélioYoussef, Michel Nicolau

Zahn, Guilherme SoaresZamboni, Cibele Bugno

Zavaglia, Cecília A.C.

Zektser, Igor S.

Zenóbio, Elton GonçalvesZenóbio, Madelon A. Fernandes

Zevallos-Cháves, Juan Y.

Zidan, Priscila MendesZorrilla, Fernando Parreño

Zucchi, Orghêda Luiza Araújo D.

Zuloaga, Pablo

X

VW

Z

T

Y



inac2002VI ENAN

Authors


Abdalla, Adibe LuizRUMEN MICROBIAL GROWTH ESTIMATION USING IN VITRO RADIOPHOSPHOROUS INCORPORATION TECHNIQUEFile: E08_323.pdfINCORPORAÇÃO IN VITRO DO RADIOFÓSFORO PELOS MICRORGANISMOS RUMINAIS EM DIFERENTES PROPORÇÕESDO INÓCULOFile: E08_324.pdf

Abrão, AlcídioDECOMPOSIÇÃO TÉRMICA DE RESÍDUOS ORGÂNICOS CONTENDO RADIONUCLÍDEOS POR MEIO DE OXIDAÇÃO EMSAIS FUNDIDOSFile: E05_779.pdfTRANSFORMAÇÃO VIA PERÓXIDO DE UM HIDRÓXIDO BRUTO DE TÓRIO EM NITRATO PARA CAMISAS DE LAMPIÃOFile: E11_114.pdfPRODUÇÃO DE LANTÂNIO DE ALTA PUREZA PARA APLICAÇÃO EM P&DFile: E11_173.pdfRECUPERAÇÃO DE TÓRIO COMO NITRATO “MANTLE GRADE” USANDO-SE UM HIDRÓXIDO DE TÓRIO BRUTOFile: E11_180.pdfSÍNTESE E CARACTERIZAÇÃO DE PRECURSORES À BASE DE LANTÂNIO PARA APLICAÇÃO EM CATALISADORESFile: E11_191.pdf

Acar, Maria Elizabeth E. DiasCONTROLE AMBIENTAL DO REPOSITÓRIO DE REJEITOS DE ABADIA DE GOIÁSFile: E01_585.pdf

Adachi, Eduardo MakotoAVALIAÇÃO DA PERDA DENTAL HUMANA COM O USO DO CLAREADOR PERÓXIDO DE CARBAMIDA COMPARADO AOCONDICIONAMENTO COM ÁCIDO FOSFÓRICO - MÉTODO RADIOMÉTRICOFile: E07_369.pdf

Afarideh, HosseinDESIGN, CONSTRUCTION AND CALIBRATION OF PLANE-PARALLEL IONIZATION CHAMBERS AT THE SSDL OF IRANFile: E01_079.pdfPRODUCTION OF SELENIUM-75 AND RADIOSYNTHESIS OF [75Se]-4-ETHOXYCARBONYL-5-METHYL-1,2,3-SELENADIAZOLEFile: E07_065.pdf

Aghina, Maurício Alves da CunhaSISTEMA DE MONITORAÇÃO DE REJEITOS RADIOATIVOS HOSPITALARESFile: E04_028.pdf

Akil, MohamedCONCEPÇÃO INTEGRADA DE SISTEMAS MISTOS HARDWARE/SOFTWARE UTILIZADOS EM INSTRUMENTAÇÃO NUCLEARFile: E04_766.pdf

Albinati, ClaudiaINSTRUMENTAL NEUTRON ACTIVATION ANALYSIS AS AN ANALYTICAL TOOL ON SUPPORTING THE ESTABLISHMENT OFGUIDELINES AND DATA BASIS FOR WORKER’S HEALTH AWARENESS PROGRAMFile: E03_083.pdf

Alcarde, André R.USO DA RADIAÇÃO GAMA NO ENVELHECIMENTO DA AGUARDENTE DE CANA DE AÇÚCARFile: E08_777.pdf



inac2002VI ENAN

Authors


Aleixo, Luiz CláudioESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOSFile: E07_241.pdf

Alencar, Marcus Alexandre Vallim deEFEITO DA DOPAGEM COM LÍTIO NO SINAL INDICADOR DE DOSE (RADICAL CO2

-) EM DOSIMETRIA POR RPE DECARBOAPATITAS SINTÉTICAS DO TIPO BFile: E01_053.pdf

Alfenas, Elizabeth RodriguesA HUMAN HEAD PHANTOM FOR EXPERIMENTAL DOSIMETRYFile: E11_764.pdf

Aliste, Antonio JoãoPOTENCIAL RADIOPROTETOR DO ÁCIDO ASCÓRBICO SOBRE A CARRAGENANA UTILIZADA COMO ADITIVO ALIMENTÍCIOFile: E08_293.pdf

Almeida, C. E. deIMPLEMENTATION OF A MAMMOGRAPHY CALIBRATION SYSTEMFile: E01_389.pdf

Almeida, Cláudio Calixto deTRANSPORTE DE NITRATO DE TÓRIO PARA FIRMAS EXTERNAS AO IPEN-CNEN/SPFile: E01_265.pdfDESCONTAMINAÇÃO DE SUPERFÍCIES NA USINA DE URÂNIO METÁLICO DA DIVISÃO DE PROCESSOS METALÚRGICOSIPEN/CNEN-SPFile: E01_489.pdf

Almeida, Claudio Domingues deMÉTODO SIMPLIFICADO PARA AVALIAR A QUALIDADE DO SISTEMA MAMOGRÁFICOFile: E07_663.pdf

Almeida, Gevaldo Lisboa deA POSITION SENSITIVE GAS DETECTOR FOR TOMOGRAPHY WITH THERMAL NEUTRONSFile: E04_301.pdfA HYBRID TECHNIQUE TO EVALUATE THE LINE SPREAD FUNCTIONFile: E10_142.pdf

Almeida, Maria Candida Moreira deEFLUENT TREATMENT WITH LANTHANUM, GADOLINIUM AND CADMIUM THROUGH CROWN ETHERSFile: E02_238.pdfEVALUATION OF THE HALF-LIVES FOR DIFFERENT NUCLIDES BY MEANS OF GAMMA-RAY SPECTROMETRYFile: E07_240.pdf

Alonso, Thêssa CristinaPROTEÇÃO RADIOLÓGICA EM RADIODIAGNÓSTICO ODONTOLÓGICO EM MINAS GERAISFile: E07_412.pdf



inac2002VI ENAN

Authors


Alves, Antônio Sérgio De MartinVERIFICAÇÃO DA EFETIVIDADE DE BLINDAGEM RADIOLÓGICA PARA O LABORATÓRIO DE CALIBRAÇÃO DOS MONITORESDE RADIAÇÃO DA CNAAAFile: E01_601.pdfIMPACTO RADIOLÓGICO DEVIDO À RUPTURA DE UM TANQUE RADIOATIVO NO EDIFÍCIO AUXILIAR DO REATOR DE ANGRA2File: E01_604.pdf

Alves, José MarcosQUANTIFICAÇÃO HISTOMORFOMÉTRICA 2D A PARTIR DE TOMOGRAFIA COMPUTADORIZADA 3DFile: E07_110.pdf

Aly, Omar FernandesTÉCNICAS DE MEDIÇÃO DE RUÍDO ELETROQUÍMICO E POTENCIAL DE CORRENTE CONTÍNUA REVERSA APLICADAS AENSAIOS DE CORROSÃO SOB TENSÃOFile: E11_908.pdf

Amaral, Angela MariaESTUDO ARQUEOMÉTRICO DE CERÂMICAS DO AMAZONASFile: E02_197.pdfDETERMINAÇÃO DE Ca, Cr, Cu, Fe, K, Mg, Na E Zn EM PLANTAS MEDICINAIS BRASILEIRAS POR ATIVAÇÃO NEUTRÔNICAE ABSORÇÃO ATÔMICAFile: E02_206.pdf

Amaral, Eliana Corrêa da SilvaDESENVOLVIMENTO DE UM SISTEMA INTEGRADO PARA AVALIAÇÃO DE IMPACTO RADIOLÓGICO AMBIENTAL EMSITUAÇÕES DE EMERGÊNCIAFile: E01_449.pdfAVALIAÇÃO DA EXPOSIÇÃO INTERNA A K-40 DOS RESIDENTES DA CIDADE DO RIO DE JANEIROFile: E01_618.pdfDISSEMINAÇÃO DE 137Cs NA ÁREA URBANA DE GOIÂNIA POR RESSUSPENSÃO E TRANSPORTE DE SOLO SUPERFICIALFile: E01_689.pdf

Amorim, Valter Alves deREVISÃO DE TRABALHOS E PROPOSTA DE EXPLORAÇÃO DA TÉCNICA DE NEUTRONGRAFIA NO REATOR TRIGA IPR-R1DO CDTNFile: E02_214.pdfEXPLORAÇÃO DO FEIXE DE NÊUTRONS EMERGENTE DO REATOR TRIGA IPR-R1 (MARK-I) PARA APLICAÇÕES GERAISFile: E13_215.pdf

Andrade, Antero Silva Ribeiro dePCR ASSOCIADO A HIBRIDIZAÇÃO COM SONDAS RADIOATIVAS DE DNA PARA A IDENTIFICAÇÃO DE INFECÇÃOSUBCLINICA CAUSADA POR LEISHMANIA CHAGASIFile: E07_749.pdf

Andrade, Arnaldo Homobono Paes deTÉCNICAS DE MEDIÇÃO DE RUÍDO ELETROQUÍMICO E POTENCIAL DE CORRENTE CONTÍNUA REVERSA APLICADAS AENSAIOS DE CORROSÃO SOB TENSÃOFile: E11_908.pdf



inac2002VI ENAN

Authors


Andrade, Lídia MariaPBMC AND MDAMB-231 CELLULAR VIABILITY AFTER TELECOBALT IRRADIATIONFile: E07_763.pdfA HUMAN HEAD PHANTOM FOR EXPERIMENTAL DOSIMETRYFile: E11_764.pdf

Andrade e Silva, Leonardo Gondim deCARACTERIZAÇÃO DA POLIAMIDA-6 RECICLADA IRRADIADA POR FEIXE DE ELÉTRONSFile: E11_398.pdfCARACTERIZAÇÃO DO POLI(ACETATO DE VINILA) OBTIDO POR RADIAÇÃO GAMAFile: E11_399.pdfESTUDO DO EFEITO DA RADIAÇÃO NAS PROPRIEDADES MECÂNICAS, DE FLAMABILIDADE E DE FIO INCANDESCENTEDA POLIAMIDA 6.6 COM E SEM REFORÇO DE FIBRA DE VIDROFile: E11_402.pdfESTUDO DO EFEITO DA DOSE DE RADIOESTERILIZAÇÃO SOBRE AS PROPRIEDADES DO POLI(TEREFTALATO DE ETILENO)- PET RECICLADOFile: E11_438.pdfDESENVOLVIMENTO E IMPLANTAÇÃO DE UM IRRADIADOR MULTIPROPÓSITO DE COBALTO-60 TIPO COMPACTOFile: E12_501.pdf

Andrade Junior, Heitor Franco deASPECTOS MORFOLÓGICOS DA Leishmania amazonensis SUBMETIDA À AÇÃO DA RADIAÇÃO IONIZANTEFile: E09_654.pdfTAQUIZOÍTOS DE Toxoplasma gondii IRRADIADOS COM 255 Gy INDUZEM DIMINUIÇÃO DE CISTOS E LESÕES CEREBRAIS,EM CAMUNDONGOS DESAFIADOS COM CISTOS DA CEPA ME-49File: E09_688.pdf

Andrello, Avacir CasanovaDISTRIBUIÇÃO VERTICAL DE 137Cs EM SOLOS DE MATA VIRGEM DA REGIÃO DE LONDRINA (PARANÁ)File: E08_382.pdf

Anjos, Marcelino José dosANÁLISE MULTIELEMENTAR DE ÁGUA MINERAL UTILIZANDO TXRF COM RADIAÇÃO SÍNCROTRONFile: E02_658.pdfANÁLISE ELEMENTAR DE AMOSTRAS DENTÁRIAS HUMANAS USANDO SRXRFFile: E02_661.pdfESTUDO DOS DANOS CAUSADOS POR FLUIDO DE PERFURAÇÃO EM AMOSTRAS DE ARENITO UTILIZANDO AFLUORESCÊNCIA DE RAIOS X DISPERSIVA EM ENERGIA (EDXRF)File: E11_176.pdf

Antonino, Antonio Celso DantasEVAPORAÇÃO DA ÁGUA DE UM SOLO SEM VEGETAÇÃO NO BREJO PARAIBANOFile: E08_391.pdf

Antonucci, Jane BenattiSPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdfDACRIOCINTILOGRAFIA NUCLEAR: AVALIAÇÃO DA DRENAGEM LACRIMAL EM PACIENTES ONCOLÓGICOS PÓSCIRÚRGICOS DE TUMORES DE FACEFile: E07_221.pdf



inac2002VI ENAN

Authors


Aoki, Idalina VieiraTÉCNICAS DE MEDIÇÃO DE RUÍDO ELETROQUÍMICO E POTENCIAL DE CORRENTE CONTÍNUA REVERSA APLICADAS AENSAIOS DE CORROSÃO SOB TENSÃOFile: E11_908.pdf

Aoki, Pedro EitiDETERMINAÇÃO DE TEMPO DE RESIDÊNCIA MÉDIO -TRM - EM UM DIGESTOR ANAERÓBIO DA ESTAÇÃO DE TRATAMENTODE ESGOTOS DE BARUERI COM UTILIZAÇÃO DE TRAÇADOR RADIOATIVOFile: E06_138.pdfCARACTERIZAÇÃO DO ESCOAMENTO HIDRÁULICO NOS TANQUES DE AERAÇÃO DA ESTAÇÃO DE TRATAMENTO DEESGOTO SUZANO, UTILIZANDO-SE TRAÇADOR RADIOATIVOFile: E06_415.pdf

Aparicio, Eric EstévezOPTIMISATION METHOD FOR THE ADMINISTERED ACTIVITY TO PATIENTS IN Tc-99m-HMPAO CEREBRAL BLOOD FLOWSPECT IN ADULTSFile: E07_136.pdf

Appoloni, Carlos RobertoCARACTERIZAÇÃO QUÍMICA DE FRAGMENTOS CERÂMICOS ARQUEOLÓGICOS POR MICROFLUORESCÊNCIA DE RAIOSX (µ-XRF)File: E02_033.pdfFLUORESCÊNCIA DE RAIOS X POR REFLEXÃO TOTAL APLICADA À ANÁLISE DE ELEMENTOS QUÍMICOS EM CHÁ DEERVA-MATE (Ilex paraguariensis)File: E02_208.pdfMEDIDA DE TRAÇOS RADIOATIVOS EM ALIMENTOS DE EXPORTAÇÃO DO PARANÁFile: E03_150.pdfMEDIDA DA POROSIDADE NO SOLO TRe (Terra Roxa Estruturada) UTILIZANDO A TÉCNICA DE TRANSMISSÃO DE RAIOS GAMAFile: E08_320.pdfDISTRIBUIÇÃO VERTICAL DE 137Cs EM SOLOS DE MATA VIRGEM DA REGIÃO DE LONDRINA (PARANÁ)File: E08_382.pdf

Aquino, Afonso Rodrigues deGESTÃO DE UMA UNIDADE DE ENSINO NA ÁREA NUCLEARFile: E14_551.pdf

Aquino, Kátia Aparecida da SilvaESTUDO DA ESTABILIZAÇÃO TÉRMICA EM FILMES DE POLI(METACRILATO DE METILA) RADIOESTÁVEISFile: E11_682.pdf

Aragão, Pedro Henrique ArrudaIDENTIFICATION OF METALS IN BORDERING SOILS AND SEDIMENTS OF LAKE IPÊ-MS, BRAZIL, BY EDXRF TECHNIQUEFile: E03_515.pdfAPLICAÇÃO DA FLUORESCÊNCIA DE RAIO X NA DETERMINAÇÃO DE COMPONENTES INSOLÚVEIS NAS ÁGUAS DEPRECIPITAÇÃO EM REGIÃO CONTINENTAL SUBTROPICALFile: E03_541.pdfESTUDO DE FITOPATOLOGIAS ATRAVÉS DA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO EM ENERGIAFile: E08_537.pdf

Araújo, Elaine Bortoleti deMARCAÇÃO DO PEPTÍDEO INTESTINAL VASOATIVO (VIP) COM IODO-131 POR MÉTODO DIRETOFile: E07_633.pdf



inac2002VI ENAN

Authors


Araújo, Elmo Silvano deESTUDO DO MÉTODO DE SÍNTESE E DA ESTABILIDADE DE RESPOSTA DA POLIANILINA DOPADA UTILIZADA EMAPLICAÇÕES DOSIMÉTRICASFile: E01_518.pdfINFLUÊNCIA DA RADIAÇÃO GAMA NO VALOR DA CONSTANTE DE SCHULZ-BLASCHKEFile: E11_645.pdfESTUDO DE MISCIBILIDADE DA MISTURA FÍSICA PMMA/PS: COMPATIBILIZAÇÃO INDUZIDA POR RADIAÇÃO GAMAFile: E11_669.pdfESTUDO DA ESTABILIZAÇÃO TÉRMICA EM FILMES DE POLI(METACRILATO DE METILA) RADIOESTÁVEISFile: E11_682.pdf

Araujo, José Adroaldo deSISTEMA DE CONTROLE E CONTABILIDADE DE MATERIAIS NUCLEARES NO IPEN-CNEN/SPFile: E13_768.pdf

Araújo, Radier Mário S. deTHE BRAZILIAN SAFEGUARDS ANALYTICAL LABORATORYFile: E01_479.pdf

Araujo, Sumair GouveiaUMA REVISÃO DE SISTEMAS AUTOMATIZADOS PARA USO EM CÍCLOTRONSFile: E07_751.pdf

Ardisson, José DomingosESTUDO DAS ALTERAÇÕES ESTRUTURAIS EM ARGILAS PILARIZADASFile: E11_432.pdf

Armelin, Maria José AguirreAPLICAÇÃO DA ANÁLISE POR ATIVAÇÃO COM NÊUTRONS PARA DETERMINAÇÃO DE FERRO EM FORRAGEIRAS USADASNO SISTEMA INTENSIVO DE PRODUÇÃO DE BOVINOS DE LEITEFile: E02_428.pdfPURIFICAÇÃO POR REFINAMENTO ZONAL PARA PREPARAÇÃO DOS DETECTORES SEMICONDUTORES DE PbI2 E TlBrFile: E04_115.pdf

Aronne, Ivan DionysioINCORPORATING EXTERNALITIES IN THE ASSESSMENT OF DIFFERENT ENERGY OPTIONS FOR ELECTRICITYPRODUTIONFile: E03_003.pdfENVIRONMENTAL EXTERNALITIES OWED TO THE ELECTRICITY GENERATION: A COMPARISON BETWEEN THE NUCLEARAND THE GAS GENERATIONFile: E03_545.pdf

ArrudaNeto, João Dias Toledo deNUCLEAR METHODOLOGY FOR STUDYING BIOLOGICAL FUNCTIONS OF MAMMALIANS SUBMITTED TO URANIUMINGESTIONFile: E02_418.pdfTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Assis, Adilson de C. deDETERMINAÇÃO DE Ca, Cr, Cu, Fe, K, Mg, Na E Zn EM PLANTAS MEDICINAIS BRASILEIRAS POR ATIVAÇÃO NEUTRÔNICAE ABSORÇÃO ATÔMICAFile: E02_206.pdf



inac2002VI ENAN

Authors


Avelar, Artur CanellaINAA AS TOOL FOR ENVIRONMENT BIOMONITORINGFile: E02_171.pdf

Avino, SimoneDETERMINAÇÃO DE ELEMENTOS TRAÇO NOS FITOFÁRMACOS GINSENG E GINKGO BILOBAFile: E02_465.pdf

Azeredo, Adelaide Maria Gondin da FonsecaCALIBRAÇÃO DA UNIDADE DE CONTADOR DE CORPO INTEIRO DO IRD PARA MEDIDAS IN VIVO DE PB-210 EM TECIDOÓSSEO E PULMONARFile: E01_058.pdf

Azevedo, Walter Mendes deEVALUATION OF POLYANILINE NANOFILM’S RESPONSE FOR 60 Co BEAMSFile: E01_423.pdfESTUDO DO MÉTODO DE SÍNTESE E DA ESTABILIDADE DE RESPOSTA DA POLIANILINA DOPADA UTILIZADA EMAPLICAÇÕES DOSIMÉTRICASFile: E01_518.pdfESTUDO DE MISCIBILIDADE DA MISTURA FÍSICA PMMA/PS: COMPATIBILIZAÇÃO INDUZIDA POR RADIAÇÃO GAMAFile: E11_669.pdf

Bacchi, Osny Oliveira SantosDETERMINAÇÃO DA CURVA DE RETENÇÃO DA ÁGUA NO SOLO COM AUXILIO DA TRANSMISSÃO DE RAIOSGAMAFile: E08_147.pdfVARIABILIDADE ESPACIAL DO “FALLOUT” DE 137Cs ENTRE ÁREAS DE REFERÊNCIA. I. MUNICÍPIOS DE PIRACICABA,NOVA ODESSA E CAMPINASFile: E08_322.pdf

Banchik, Abraham DavidVALIDATION PROCEDURE FOR THE FABRICATION SEQUENCE OF SELF-POWERED NEUTRON DETECTORS FOR NPPDEVELOPED BY CNEAFile: E04_719.pdfFABRICATION, QUALIFICATION AND CALIBRATION OF 60Co SEALED SOURCESFile: E06_774.pdf

Baptista Filho, Benedito DiasUTILIZAÇÃO DE CINTILADORES PLÁSTICOS EM SISTEMAS DE DETECÇÃO SENSÍVEIS À POSIÇÃOFile: E04_747.pdf

Barbosa, Ademarlaudo FrançaA POSITION SENSITIVE GAS DETECTOR FOR TOMOGRAPHY WITH THERMAL NEUTRONSFile: E04_301.pdfTOMOGRAFIAS COM DETECTOR DE RAIOS-X SENSÍVEL À POSIÇÃOFile: E04_778.pdf

Barbosa, João Batista SantosDETERMINAÇÃO DE CESIO POR ESPECTROMETRIA DE ENERGIA DE RAIOS X EM AMOSTRAS DE LIXIVIAÇÃO DEPRODUTOS CIMENTADOSFile: E02_420.pdf



inac2002VI ENAN

Authors


Barboza, Marycel Figols deANÁLISE DA IMUNORREATIVIDADE DO ANTICORPO MONOCLONAL ANTI-CEA IOR-1 MARCADO COM 99mTcFile: E07_705.pdfSYNTHESIS AND QUALITY CONTROL OF 18F-FDG AT IPEN-CNEN/SPFile: E07_712.pdf

Barreto, Sônia Regina GiancoliIDENTIFICATION OF METALS IN BORDERING SOILS AND SEDIMENTS OF LAKE IPÊ-MS, BRAZIL, BY EDXRF TECHNIQUEFile: E03_515.pdf

Barreto, Vera Lúcia BrancoANGRA 2 – QUALIFICAÇÃO DO PRODUTO DE REJEITO BETUMINIZADOFile: E05_686.pdf

Barreto, Wagner JoséIDENTIFICATION OF METALS IN BORDERING SOILS AND SEDIMENTS OF LAKE IPÊ-MS, BRAZIL, BY EDXRF TECHNIQUEFile: E03_515.pdf

Barria, Jose Javier GomezPRODUCCIÓN DE CENTROS DE COLOR EN EL TOPACIO NATURAL IRRADIADO CON NEUTRONES EN EL NÚCLEO DELREACTOR PERUANO RP-10File: E06_397.pdf

Barros, Dário Sarmento deSPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdf

Barroso, Regina CélyANÁLISE ELEMENTAR DE AMOSTRAS DENTÁRIAS HUMANAS USANDO SRXRFFile: E02_661.pdf

Bartoly, FlaviaVALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137Cs EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOS TROPICAISFile: E01_752.pdfTRANSFER AND MOBILITY OF 137CS AND 60CO IN OXISOL AND ALFISOLFile: E01_753.pdf

Batagello, Hugo HenriqueRECUPERAÇÃO DE BROMO EM SOLUÇÕES RESIDUAIS GERADAS NA METODOLOGIA DE DETERMINAÇÃO ISOTÓPICADE 15N (RITTENBERG, 1946)File: E02_183.pdfOBTENÇÃO DO GESSO AGRÍCOLA MARCADO NO 34S (Ca34SO4.2H2O), POR REAÇÃO QUÍMICA ENTRE O H2

34SO4 E O Ca(OH)2

File: E02_280.pdf

Batista, Delano Valdivino SantosMEDIDAS IN VIVO EM PACIENTES SUBMETIDOS À RADIOTERAPIA PARA TRATAMENTO DE CÂNCER DE CABEÇA EPESCOÇOFile: E07_023.pdf



inac2002VI ENAN

Authors


Bavaresco, Vanessa PetrilliCARACTERIZAÇÃO MECÂNICA DE HIDROGÉIS DE PVAl PARA SEREM UTILIZADOS COMO CARTILAGEM ARTICULARARTIFICIAL RETICULADOS POR RADIAÇÃOFile: E11_543.pdf

Beceiro, Alvaro R.THE RADIOACTIVE WASTE MANAGEMENT PROGRAMME IN SPAINFile: E05_559.pdf

Becker, Paulo Henrique BastosCALIBRAÇÃO DE MEDIDORES DE KV COM A GRANDEZA POTENCIAL DE PICO PRÁTICO (IEC 1676)File: E04_695.pdf

Beguin, PhilippeRADIOACTIVE WASTE CHARACTERIZATION IN BELGIUMFile: E05_244.pdf

Bellido, Luis FernandoCOMPORTAMENTO CINÉTICO DO MANGANÊS NUMA FLORESTA DE MANGUEZAL - ITACURUÇÁ, RJFile: E03_358.pdf

Bellido Jr., Alfredo VictorCOMPORTAMENTO CINÉTICO DO MANGANÊS NUMA FLORESTA DE MANGUEZAL - ITACURUÇÁ, RJFile: E03_358.pdf

Beltrán, JesúsDATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANAFile: E03_072.pdf

Bendassolli, José AlbertinoRECUPERAÇÃO DE BROMO EM SOLUÇÕES RESIDUAIS GERADAS NA METODOLOGIA DE DETERMINAÇÃO ISOTÓPICADE 15N (RITTENBERG, 1946)File: E02_183.pdfDETERMINAÇÃO DE 34S POR ESPECTROMETRIA DE MASSAS (% EM ÁTOMOS), DO S-SULFATO DISPONÍVEL EM AMOSTRASDE SOLO.File: E02_276.pdfSÍNTESE DE COMPOSTOS ORGÂNICOS ENRIQUECIDOS EM 15NFile: E02_278.pdfOBTENÇÃO DO GESSO AGRÍCOLA MARCADO NO 34S (Ca34SO4.2H2O), POR REAÇÃO QUÍMICA ENTRE O H2

34SO4 E O Ca(OH)2

File: E02_280.pdfDETERMINAÇÃO DE δ15N EM EFLUENTES URBANOS POR MICRODIFUSÃO AMONIACAL À VÁCUOFile: E03_122.pdfABSORÇÃO, TRANSLOCAÇÃO E REDISTRIBUIÇÃO DO NITROGÊNIO (15N) EM LARANJEIRAFile: E08_139.pdfDETERMINAÇÃO DA RAZÃO ISOTÓPICA δ13C (‰) DE CERVEJAS CLARA TIPO PILSEN NACIONALFile: E08_207.pdfUTILIZAÇÃO DO ENXOFRE APLICADO AO SOLO PELA SOJA, AVALIADO COM AS TÉCNICAS ISOTÓPICAS: 34S (ESTÁVEL) E35S (RADIOATIVO)File: E08_264.pdfMINERALIZAÇÃO BRUTA DO NITROGÊNIO EM SOLOS DE ALTA FERTILIDADE. EFEITO DO MANEJO E A PROFUNDIDADEDE AMOSTRAGEMFile: E08_775.pdf



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Authors


Bernardes, Dulcila Maria L.ANÁLISE DA IMUNORREATIVIDADE DO ANTICORPO MONOCLONAL ANTI-CEA IOR-1 MARCADO COM 99mTcFile: E07_705.pdf

Bernardo Filho, MárioASSESSMENT OF THE EFFECT OF MENTHA CRISPA L. (HORTELÃ) EXTRACT ON THE LABELING OF RED BLOOD CELLSAND PLASMA PROTEINS WITH TECHNETIUM-99MFile: E07_041.pdfESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOSFile: E07_241.pdfASSESSMENT OF THE EFFECT OF PHYTIC ACID ON THE LABELING OF BLOOD CELLS AND PLASMA PROTEINS WITHTECHNETIUM-99mFile: E09_227.pdfRADIOIMUNOENSAIO PARA DETERMINAÇÃO DO HORMÔNIO TIREOIDEANO NA PROLE DE RATAS HIPOTIREOIDEAS EHIPERTIREOIDEASFile: E09_312.pdf

Berne, PhilippeON NUMERICAL DECONVOLUTION FOR DATA ANALYSIS OF TRACERS’ EXPERIMENTSFile: E06_581.pdf

Bernedo, Alfredo Victor BellidoMÉTODO NUCLEAR APLICADO EM SÍTIOS ARQUEOLÓGICOS NA BACIA AMAZÔNICAFile: E02_451.pdf

Bertozzi, Dênis A.PREDICTION OF Rn-222 EXHALATION RATES FROM PHOSPHOGYPSUM-BASED EMBANKMENTS. PART II: NUMERICALSIMULATION AND RESULTSFile: E03_558.pdf

Bezerra, Andrezza de LemosACTION OF PHYLLANTHUS NIRURI ON THE HORMONES OF PREGNANT FEMALE RATSFile: E09_239.pdfEFEITO DE EXTRATOS DO MARACUJA-AÇU NA BIODISTRIBUIÇÃO DO TECNÉCIO-99m EM CAMUNDONGOSFile: E07_277.pdf

Bezerra, José Henrique B.THE BRAZILIAN SAFEGUARDS ANALYTICAL LABORATORYFile: E01_479.pdf

Bianchi, DanielVALIDATION PROCEDURE FOR THE FABRICATION SEQUENCE OF SELF-POWERED NEUTRON DETECTORS FOR NPPDEVELOPED BY CNEAFile: E04_719.pdf

Bicudo, MilenaDETERMINAÇÃO DE 34S POR ESPECTROMETRIA DE MASSAS (% EM ÁTOMOS), DO S-SULFATO DISPONÍVEL EM AMOSTRASDE SOLOFile: E02_276.pdf

Bitelli, Ricardo d’UtraPROTEÇÃO RADIOLÓGICA OCUPACIONAL NO CENTRO TECNOLÓGICO DA MARINHA EM SÃO PAULOFile: E01_544.pdf



inac2002VI ENAN

Authors


Boaretto, Antonio EnediEFEITO DO pH NA ADSORÇÃO DE RADIOCÉSIO EM SOLOS TROPICAISFile: E08_125.pdfABSORÇÃO, TRANSLOCAÇÃO E REDISTRIBUIÇÃO DO NITROGÊNIO (15N) EM LARANJEIRAFile: E08_139.pdfABSORÇÃO DE 65Zn PELAS FOLHAS DE LARANJEIRA E SUA TRANSLOCAÇÃO NA PLANTAFile: E08_151.pdf

Boaretto, Rodrigo MarcelliABSORÇÃO DE 65Zn PELAS FOLHAS DE LARANJEIRA E SUA TRANSLOCAÇÃO NA PLANTAFile: E08_151.pdf

Boasquevisque, Edson M.ASSESSMENT OF THE EFFECT OF PHYTIC ACID ON THE LABELING OF BLOOD CELLS AND PLASMA PROTEINS WITHTECHNETIUM-99mFile: E09_227.pdf

Bonassi, José AurélioRECUPERAÇÃO DE BROMO EM SOLUÇÕES RESIDUAIS GERADAS NA METODOLOGIA DE DETERMINAÇÃO ISOTÓPICADE 15N (RITTENBERG, 1946)File: E02_183.pdfDETERMINAÇÃO DE δ15N EM EFLUENTES URBANOS POR MICRODIFUSÃO AMONIACAL À VÁCUOFile: E03_122.pdf

Bonetti, Franco ClaudioASPECTOS MORFOLÓGICOS DA Leishmania amazonensis SUBMETIDA À AÇÃO DA RADIAÇÃO IONIZANTEFile: E09_654.pdf

Bonifácio, Daniel. A. B.SCATTERING FRACTION OF X-RAYS INCIDENT ON A PHANTOM FROM THE MEASURED ENERGY SPECTRAFile: E01_556.pdf

Borrely, Sueli IvoneRADIAÇÕES IONIZANTES E O REUSO DAS ÁGUASFile: E03_713.pdfREDUÇÃO DA TOXICIDADE DE SURFACTANTE SUBMETIDO À IRRADIAÇÃO COM FEIXE DE ELÉTRONS. RESULTADOSPRELIMINARESFile: E03_714.pdfESTUDO DA RADIODEGRADAÇÃO DOS COMPOSTOS ORGÂNICOS ODORÍFICOS GEOSMINA E METILISOBORNIOLPRESENTES EM ÁGUA DO SISTEMA GUARAPIRANGAFile: E03_760.pdf

Borroto, J.99mTc-EDTA AND 99mTc-DTPA COMPLEXES AS HYDROLOGICAL TRACERSFile: E06_073.pdf

Bortoletto Júnior, Milton JoséESTUDO DA VARIABILIDADE TEMPORAL DIURNA DE δ15N E δ13C EM EFLUENTES DOMÉSTICOS DA CIDADE DEPIRACICABA (SP)File: E03_242.pdf



inac2002VI ENAN

Authors


Bossio, FranciscoAVALIAÇÃ0 DE COMPONENTES DE UM PADRÃO PRIMÁRIO PARA FEIXES DE RAIOS-X DE MAMOGRAFIAFile: E01_716.pdf

Botrel, NeidePESQUISA DO ESPECTRO DE RAIOS-X NA AQUISIÇÃO E PROCESSAMENTO DE IMAGENS DIGITAIS PARA A DETECÇÃODE DESORDENS INTERNAS EM FRUTOS DA MANGUEIRA (Mangifera indica L.)File: E08_093.pdf

Bourroul, Selma CecíliaCARACTERIZAÇÃO DE ALOENXERTOS SUBMETIDOS À RADIAÇÃO IONIZANTEFile: E07_179.pdf

Braga, A.P.ANÁLISE DO ESPECTRO DE VIDA MÉDIA DE ANIQUILAÇÃO DO PÓSITRON ATRAVÉS DE ESTUDOS DE PROBLEMASINVERSOSFile: E11_205.pdf

Braga, Cláudia CristinaUM ESTUDO COMPARATIVO DE MODELOS DE LIBERAÇÃO DE HEXAFLUORETO DE URÂNIO (UF6)File: E03_127.pdf

Braga, João PedroANÁLISE DO ESPECTRO DE VIDA MÉDIA DE ANIQUILAÇÃO DO PÓSITRON ATRAVÉS DE ESTUDOS DE PROBLEMASINVERSOSFile: E11_205.pdf

Brancaccio, FrancoSISTEMA ELETRÔNICO PARA AUTOMATIZAÇÃO DE MEDIDAS DE CORRENTES PRODUZIDAS POR CÂMARAS DE IONIZAÇÃOFile: E04_634.pdf

Brandão, Luis Eduardo BarreiraESTUDO EXPERIMENTAL DO TEMPO DE RESIDÊNCIA DE PARTÍCULAS EM SECADOR ‘SPRAY’File: E06_229.pdfOTIMIZAÇÃO DE UM DECANTADOR/FLOCULADOR DE PLACAS PLANAS VERTICAIS EMPREGANDO-SE TRAÇADORESRADIOATIVOSFile: E06_901.pdf

Braz, Celso EduardoDETERMINAÇÃO DOS PARÂMETROS NECESSÁRISOS PARA AVALIAÇÃO DO IMPACTO AMBIENTAL DECORRENTE DAUTILIZAÇÃO DO FOSFOGESSOFile: E03_574.pdf

Braz, DelsonANÁLISE ELEMENTAR DE AMOSTRAS DENTÁRIAS HUMANAS USANDO SRXRFFile: E02_661.pdfSISTEMA COMPACTO DE INSPEÇÃO DE EQUIPAMENTOS E MATERIAIS UTILIZANDO FONTE DE RADIAÇÃO GAMA: UMESTUDO SIMULADOFile: E04_112.pdfCOMPUTED TOMOGRAPHY TO DETERMINE FATIGUE CRACKING GROWTH PARAMETERS IN ASPHALTIC MIXTURESFile: E06_210.pdf



inac2002VI ENAN

Authors


Brienza, Sandra Maria BoscoloEMPREGO DA FLUORESCÊNCIA DE RAIOS X DISPERSIVA PARA AVALIAÇÃO DA POLUIÇÃO POR METAIS PESADOS EMAMOSTRAS DE ÁGUA E SEDIMENTOS DE LAGOSFile: E03_413.pdfDISPONIBILIDADE DE METAIS PESADOS EM SEDIMENTOS DE LAGOS UTILIZANDO TÉCNICAS DE EXTRAÇÃO QUÍMICA EDE FLUORESCÊNCIA DE RAIOS XFile: E03_433.pdf

Buchpiguel, Carlos AlbertoANÁLISE CITOGENÉTICA DO 153Sm-EDTMP EM LINFÓCITOS PERIFÉRICOS DE PACIENTES COM CÂNCER ÓSSEOMETASTÁTICOFile: E07_245.pdf

Bueno, Ives Cláudio da SilvaRUMEN MICROBIAL GROWTH ESTIMATION USING IN VITRO RADIOPHOSPHOROUS INCORPORATION TECHNIQUEFile: E08_323.pdfINCORPORAÇÃO IN VITRO DO RADIOFÓSFORO PELOS MICRORGANISMOS RUMINAIS EM DIFERENTES PROPORÇÕESDO INÓCULOFile: E08_324.pdf

Burgos, Manuel R.ON NUMERICAL DECONVOLUTION FOR DATA ANALYSIS OF TRACERS’ EXPERIMENTSFile: E06_581.pdf

Burnett, William CraigAPLICAÇÃO DE 222Rn COMO TRAÇADOR DA DESCARGA DE ÁGUAS SUBTERRÂNEAS NA REGIÃO COSTEIRA DE UBATUBA,SÃO PAULOFile: E03_624.pdf

Busch, MilianeCHARACTERIZATION OF MONAZITE DUST PARTICLESFile: E02_721.pdf

Bustillos, José Oscar VegaANÁLISE QUANTITATIVA DE COMPÓSITO DE ALUMÍNIO REFORÇADO COM CARBETO DE SILÍCIO PELA TÉCNICA DEFLUORESCÊNCIA DE RAIOS X E RADIAÇÃO INFRAVERMELHAFile: E02_762.pdf

Cabral, Tânia SchirnANÁLISE DOS RESULTADOS DA MONITORAÇÃO DE ÁREA REALIZADA DURANTE O PROCESSO DE PRODUÇÃO DO IODO123 NO INSTITUTO DE ENGENHARIA NUCLEARFile: E01_038.pdf

Cabral Filho, Sergio Lucio SalomonRUMEN MICROBIAL GROWTH ESTIMATION USING IN VITRO RADIOPHOSPHOROUS INCORPORATION TECHNIQUEFile: E08_323.pdfINCORPORAÇÃO IN VITRO DO RADIOFÓSFORO PELOS MICRORGANISMOS RUMINAIS EM DIFERENTES PROPORÇÕESDO INÓCULOFile: E08_324.pdf

Calçada, Luís A.OBTENÇÃO DE CLORETO DE TERRAS RARAS ANIDRO EM LEITO FLUIDIZADOFile: E11_531.pdf



inac2002VI ENAN

Authors


Caldas, Linda Viola EhlinCALIBRAÇÃO DE UM APLICADOR DERMATOLÓGICO DE 90Sr+90YFile: E01_521.pdfCALIBRAÇÃO DE UMA CÂMARA TIPO LÁPIS EM FEIXES PADRÕES DE RAIOS-XFile: E01_522.pdfPROPRIEDADES TERMOLUMINESCENTES DE VIDROS COMUNS COLORIDOS PARA DOSIMETRIA DE DOSES ALTASFile: E01_535.pdfSCATTERING FRACTION OF X-RAYS INCIDENT ON A PHANTOM FROM THE MEASURED ENERGY SPECTRAFile: E01_556.pdfDESEMPENHO DE UMA CÂMARA DE IONIZAÇÃO ESPECIAL PARA CONTROLE DA QUALIDADE EM RADIOTERAPIAFile: E01_683.pdfDEPENDÊNCIA ANGULAR DE MONITORES PORTÁTEIS EM FEIXES PADRONIZADOS DE RADIAÇÃO GAMAFile: E01_684.pdfDESEMPENHO DE UM SISTEMA PADRÃO DE INTERCOMPARAÇÃO EM FEIXES DE RAIOS X DE ENERGIAS BAIXASFile: E01_697.pdfCOMPORTAMENTO DE MONITORES, NÍVEL RADIODIAGNÓSTICO, EM FEIXES PADRONIZADOS DE RADIAÇÃO XFile: E01_711.pdfESTUDO DA INFLUÊNCIA DA RAZÃO OH/F NA RESPOSTA TERMOLUMINESCENTE DO TOPÁZIOFile: E11_286.pdf

Caldeira, Alexandre DavidESTUDO DO EQUILÍBRIO ELETRÔNICO NO ALUMÍNIO UTILIZANDO O DOSÍMETRO TERMOLUMINESCENTE DE CaSO4:DyFile: E01_316.pdf

Caldeira Filho, J.S.IMPLEMENTAÇÃO DO SISTEMA DA QUALIDADE NO LABORATÓRIO DE RADIOTOXICOLOGIA DO IPENFile: E01_213.pdf

Calvo, Wilson Aparecido ParejoDESENVOLVIMENTO E IMPLANTAÇÃO DE UM IRRADIADOR MULTIPROPÓSITO DE COBALTO-60 TIPO COMPACTOFile: E12_501.pdf

Camargo, Fábio deUTILIZAÇÃO DE DIODOS DE Si PARA ESPECTROMETRIA ALFAFile: E04_439.pdfESTÁGIO ATUAL DO PROJETO DE PREPARO DO GEL DE MOLIBDATO DE ZIRCÔNIO PARA USO NOS GERADORES DE99Mo/99mTcFile: E07_268.pdfESTUDO DO DESEMPENHO DO GEL DE MOLIBDÊNIO COM TITÂNIO PARA UTILIZAÇÃO NOS GERADORES DE 99Mo/99mTcFile: E07_567.pdf

Cambises, Paulo Brasil S.DESCONTAMINAÇÃO DE SUPERFÍCIES NA USINA DE URÂNIO METÁLICO DA DIVISÃO DE PROCESSOS METALÚRGICOSIPEN/CNEN-SPFile: E01_489.pdf

Camillo, Maria Aparecida PiresEFEITO DA TETRODOTOXINA NA LIBERAÇÃO DE ACETILCOLINA ESTIMULADA POR AGONISTAS GLUTAMATÉRGICOS EMTECIDO ESTRIATAL DE RATOSFile: E07_907.pdf



inac2002VI ENAN

Authors


Camilo, Ruth LuquezePREPARAÇÃO DE NANOPARTÍCULAS MAGNÉTICAS SILANIZADAS PARA UTILIZAÇÃO EM TÉCNICAS DE SEPARAÇÃOMAGNÉTICAFile: E11_346.pdf

Campos, E. F.APLICAÇÕES DA TOMOGRAFIA COMPUTADORIZADA DE RAIOS-X NA RECUPERAÇÃO DE PETRÓLEOFile: E04_130.pdf

Campos, Letícia LucenteIMPLEMENTAÇÃO DO SISTEMA DA QUALIDADE NO LABORATÓRIO DE RADIOTOXICOLOGIA DO IPENFile: E01_213.pdfESTUDO DO EFEITO DA ADIÇÃO DO DIÓXIDO DE MANGANÊS AO NITRATO DE POTÁSSIO E SUA UTILIZAÇÃO COMODOSÍMETROFile: E01_357.pdfAPLICAÇÃO DA TERMOLUMINESCÊNCIA FOTOESTIMULADA NA ÁREA OFTALMOLÓGICA USANDO-SE CaSO4:DyFile: E01_452.pdfCARACTERIZAÇÃO DA RESPOSTA RPE DOS EXCIPIENTES DOS MEDICAMENTOS PARA APLICAÇÃO EM DOSIMETRIA DEACIDENTEFile: E01_498.pdfESTUDOS PRELIMINARES DAS PROPRIEDADES DOSIMÉTRICAS DO CaSO 4:MN PELA TÉCNICA ESPECTROSCÓPICA DERPEFile: E01_632.pdf

Campos, Maria Cristina AguiarTHE 1−,0⟩ STATE IN 12C REVISITEDFile: E10_416.pdf

Campos, Tarcísio Passos Ribeiro deMODELO DE VOXEL PARA AVALIAÇÃO DOSIMÉTRICA APÓS ADMINISTRAÇÃO DE 131IFile: E01_314.pdfSISTEMA DE ANÁLISE DIMENSIONAL PARA ENSAIOS DE ELEMENTOS COMBUSTÍVEIS EM FORMA DE PLACAS EM CÉLULASQUENTESFile: E04_497.pdfAVALIAÇÃO DOSIMÉTRICA EM METÁSTASES APLICADA A RADIOTERAPIA SISTÊMICAFile: E07_042.pdfVIABILIDADE DO USO DE ANÁLOGO DE SOMATOSTATINA NA TERAPIA DE CAPTURA DE NÊUTRONSFile: E07_249.pdfAVALIAÇÃO DOSIMÉTRICA EM FANTOMA GERADO POR UM IRRADIADOR EPITÉRMICO COM CARGA U235-Cf252File: E07_255.pdfALGORITMO PARA AVALIAÇÃO DE FLUXO DE FÓTONS EM TECIDO BASEADO NA TÉCNICA DOS ELEMENTOS FINITOSFile: E07_627.pdfAVALIAÇÃO DA RADIOTERAPIA E/OU ASSOCIAÇÕES TERAPÊUTICAS EM CÂNCER DE PRÓSTATA ATRAVÉS DO ANTÍGENOPROSTÁTICO ESPECÍFICO (PSA)File: E07_757.pdfPBMC AND MDAMB-231 CELLULAR VIABILITY AFTER TELECOBALT IRRADIATIONFile: E07_763.pdfSINOVECTOMIA RADIOISOTÓPICA ATRAVÉS DO MACROAGREGADO DE HIDRÓXIDO FÉRRICO PARA TRATAMENTO DAARTRITE CRÔNICAFile: E07_903.pdfDETECÇÃO DE ABERRAÇÕES CROMOSSÔMICAS EM LINHAGEM TUMORAL APÓS IRRADIAÇÃOFile: E09_902.pdfANÁLISE DE VIDROS BIOATIVOS E RADIOATIVOS PARA BRAQUITERAPIA DE CÂNCER DE PRÓSTATAFile: E11_269.pdfA HUMAN HEAD PHANTOM FOR EXPERIMENTAL DOSIMETRYFile: E11_764.pdf



inac2002VI ENAN

Authors


Canesin, Fátima de PaivaCOMPORTAMENTO CINÉTICO DO MANGANÊS NUMA FLORESTA DE MANGUEZAL - ITACURUÇÁ, RJFile: E03_358.pdf

Cárdenas, José Patrício NáhuelUM SISTEMA PARA MONITORAÇÃO REMOTA DOS NÍVEIS DE RADIAÇÃO NO PRÉDIO DO REATOR IEA-R1 NO CASO DEUMA EMERGÊNCIA RADIOLÓGICAFile: E04_166.pdf

Cardoso, Domingos D'OliveiraCARACTERIZAÇÃO DO MONITOR INTELIGENTE DE RADIAÇÃO, MODELO MIR 7026, PARA MEDIDAS DE EQUIVALENTE DEDOSE AMBIENTE, H*(10)File: E04_029.pdf

Cardoso, Elisabeth C.L.OXIDATIVE BEHAVIOR OF IRRADIATED POLYPROPYLENE, PREDICTED AS TEMPERATURE-OXIDATIVE INDUCTION TIME(TOIT)File: E11_748.pdf

Cardoso, Isabel Cristina Rossiter de AraújoAVALIAÇÃO DA RADIOTERAPIA E/OU ASSOCIAÇÕES TERAPÊUTICAS EM CÂNCER DE PRÓSTATA ATRAVÉS DO ANTÍGENOPROSTÁTICO ESPECÍFICO (PSA)File: E07_757.pdf

Cardoso, Ricardo de SouzaAVALIAÇÃ0 DE COMPONENTES DE UM PADRÃO PRIMÁRIO PARA FEIXES DE RAIOS-X DE MAMOGRAFIAFile: E01_716.pdf

Caribé, Rebeka AlvesFIXAÇÃO BIOLÓGICA DO NITROGÊNIO EM ESTIRPES DE RIZOBIANAS IRRADIADASFile: E08_646.pdf

Carlos, Dionísio UendroDISTRIBUIÇÃO DA RADIOATIVIDADE NATURAL NA FORMAÇÃO IRATÍ NA REGIÃO DE LIMEIRA, SPFile: E03_681.pdf

Carneiro, Clemente J.G.DESENVOLVIMENTO DE UMA SONDA DE NÊUTRONS PARA MEDIDA DE UMIDADE DE SOLO UTILIZANDO UM DETECTORDE 6LiI(Eu)File: E04_247.pdf

Carneiro, MariângelaPCR ASSOCIADO A HIBRIDIZAÇÃO COM SONDAS RADIOATIVAS DE DNA PARA A IDENTIFICAÇÃO DE INFECÇÃOSUBCLINICA CAUSADA POR LEISHMANIA CHAGASIFile: E07_749.pdf

Carneiro, Orozimbo JosuéSISTEMA DE ANÁLISE DIMENSIONAL PARA ENSAIOS DE ELEMENTOS COMBUSTÍVEIS EM FORMA DE PLACAS EM CÉLULASQUENTESFile: E04_497.pdf



inac2002VI ENAN

Authors


Carvalho, E.B.EFEITO DE EXTRATOS DO MARACUJA-AÇU NA BIODISTRIBUIÇÃO DO TECNÉCIO-99m EM CAMUNDONGOSFile: E07_277.pdf

Carvalho, Elaine Farias Neves BarrosACTION OF PHYLLANTHUS NIRURI ON THE HORMONES OF PREGNANT FEMALE RATSFile: E09_239.pdf

Carvalho, Fátima Maria Sequeira deTRANSFORMAÇÃO VIA PERÓXIDO DE UM HIDRÓXIDO BRUTO DE TÓRIO EM NITRATO PARA CAMISAS DE LAMPIÃOFile: E11_114.pdf

Carvalho, GilbertoA IMPORTÂNCIA DO FATOR DE EQUIVALÊNCIA NOS ENSAIOS RADIOGRÁFICOSFile: E06_310.pdf

Carvalho, Laércio LaraAVALIAÇÃO DA EXPOSIÇÃO INTERNA A K-40 DOS RESIDENTES DA CIDADE DO RIO DE JANEIROFile: E01_618.pdf

Carvalho, Marcelo Souza deNOVO PROCESSO PARA TRATAMENTO DE EFLUENTES RADIOATIVOSFile: E03_615.pdfSIMULAÇÃO DA SORÇÃO DE AMERÍCIO NO SISTEMA EPU-DEHPA USANDO Fe(III)File: E03_603.pdf

Carvalho, Maria Angélica Garcia deAPLICAÇÃO DO MODELO DE DOIS COMPONENTES PARA CÁLCULO DE ERRO, À ANÁLISE DE DADOS DE MONITORAÇÃOAMBIENTALFile: E03_318.pdf

Carvalho, Ricardo Pinto deDETERMINAÇÃO DE Ca, Cr, Cu, Fe, K, Mg, Na E Zn EM PLANTAS MEDICINAIS BRASILEIRAS POR ATIVAÇÃO NEUTRÔNICAE ABSORÇÃO ATÔMICAFile: E02_206.pdf

Castillo, SoniaRADIOINMUNOENSAYO PARA PROGESTERONA EN LECHE BOVINAFile: E08_250.pdf

Castro, José Geraldo dePROTEÇÃO RADIOLÓGICA EM CLÍNICAS ODONTOLÓGICAS: EXEMPLO DE METODOLOGIA DE INSPEÇÃOFile: E01_296.pdf

Castro, Walber AmorimESTUDO DE TÉCNICAS DE ANÁLISE DE RESPOSTA DE DOSÍMETROS TERMOLUMINESCENTESFile: E01_300.pdfDESENVOLVIMENTO DE UM CARTÃO DOSIMÉTRICO PARA MAMOGRAFIAFile: E01_417.pdf



inac2002VI ENAN

Authors


Catanho, Maria Teresa Jansem de AlmeidaEFEITO DE EXTRATOS DO MARACUJA-AÇU NA BIODISTRIBUIÇÃO DO TECNÉCIO-99m EM CAMUNDONGOSFile: E07_277.pdfASSESSMENT OF THE EFFECT OF PHYTIC ACID ON THE LABELING OF BLOOD CELLS AND PLASMA PROTEINS WITHTECHNETIUM-99mFile: E09_227.pdfACTION OF PHYLLANTHUS NIRURI ON THE HORMONES OF PREGNANT FEMALE RATSFile: E09_239.pdfRADIOIMUNOENSAIO PARA DETERMINAÇÃO DO HORMÔNIO TIREOIDEANO NA PROLE DE RATAS HIPOTIREOIDEAS EHIPERTIREOIDEASFile: E09_312.pdf

Catharino, Marília G. M.DETERMINAÇÃO DE SELÊNIO EM MATERIAIS BIOLÓGICOS POR ANÁLISE POR ATIVAÇÃO COM NÊUTRONS - COMPARAÇÃOESTATÍSTICA ENTRE O USO DO 77mSe (t1/2 = 17,45s) E 75Se (t1/2 = 119,8d)File: E02_435.pdf

Cavalcante, Jonas SoaresESTUDO DO PROCESSO DE CO-POLIMERIZAÇÃO DE ACRILATOS E METACRILATOS INDUZIDO POR IRRADIAÇÃO GAMAFile: E11_662.pdf

Cazotti, Raul I.DATAÇÃO DE SEDIMENTOS DO RESERVATÓRIO DE BARRA BONITA, RIO TIETÊ, SP COM 210Pb : DISTRIBUIÇÃO HISTÓRICADE METAIS PESADOSFile: E03_702.pdf

Centner, BaudouinRADIOACTIVE WASTE CHARACTERIZATION IN BELGIUMFile: E05_244.pdf

Cestari, Ana CristinaNUCLEAR METHODOLOGY FOR STUDYING BIOLOGICAL FUNCTIONS OF MAMMALIANS SUBMITTED TO URANIUMINGESTIONFile: E02_418.pdfTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Cherbakian, Eloisa HeelenaRADIAÇÕES IONIZANTES E O REUSO DAS ÁGUASFile: E03_713.pdfCARACTERIZAÇÃO DO ESCOAMENTO HIDRÁULICO NOS TANQUES DE AERAÇÃO DA ESTAÇÃO DE TRATAMENTO DEESGOTO SUZANO, UTILIZANDO-SE TRAÇADOR RADIOATIVOFile: E06_415.pdf

Chernicharo, Carlos C.CALIBRAÇÃO DE MEDIDORES DE KV COM A GRANDEZA POTENCIAL DE PICO PRÁTICO (IEC 1676)File: E04_695.pdf

Chin, GinaHIDROGEL DE POLI(1-VINIL-2-PIRROLIDONA) (PVP) COMO MATRIZ POLIMÉRICA PARA SISTEMA DE LIBERAÇÃO DEFÁRMACOFile: E07_434.pdf

Chirinos, HugoRADIATION VULCANIZATION OF NATURAL RUBBER LATEX SENSITIZED WITH COMMERCIAL GASESFile: E11_530.pdf



inac2002VI ENAN

Authors


Cipriani, MoacirMIGRATION OF 226 Ra, 228 Ra, 210Pb, U AND Th FROM PHOSPHOGYPSUMFile: E03_509.pdf

Claro, Luiz HenriqueNEUTRON AND GAMMA RAY DOSE EQUIVALENT ESTIMATES FOR THE IEAV LINEAR ACCELERATORFile: E01_170.pdf

Coimbra, Melayne MartinsMEDIDA DA POROSIDADE NO SOLO TRe (Terra Roxa Estruturada) UTILIZANDO A TÉCNICA DE TRANSMISSÃO DE RAIOS GAMAFile: E08_320.pdf

Colaço, WaldeciroFIXAÇÃO BIOLÓGICA DO NITROGÊNIO EM ESTIRPES DE RIZOBIANAS IRRADIADASFile: E08_646.pdfGAMA RADIOSSENSITIVIDADE EM FEIJOEIRO COMUM E CAUPIFile: E08_649.pdf

Colombo, Maria AparecidaCOMPATIBILIZATION OF POLYAMIDE 6,6 /LINEAR LOW-DENSITY POLYETHYLENE BLEND BY ELECTRON IRRADIATIONFile: E11_168.pdf

Colturato, Maria TerezaMARCAÇÃO DO PEPTÍDEO INTESTINAL VASOATIVO (VIP) COM IODO-131 POR MÉTODO DIRETOFile: E07_633.pdf

Conceição, Edijane Guimarães daESTUDO PRELIMINAR DA LIXIVIAÇÃO DAS PILHAS DE MINÉRIO EXAURIDO DA UNIDADE DE CONCENTRAÇÃO DE URÂNIO– URA/INB, COM VISTA À AVALIAÇÃO DE IMPACTO AMBIENTALFile: E05_403.pdf

Conti, Claudio CarvalhoVALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137Cs EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOS TROPICAISFile: E01_752.pdfTRANSFER AND MOBILITY OF 137CS AND 60CO IN OXISOL AND ALFISOLFile: E01_753.pdf

Conti, Luiz Fernando C.APLICAÇÃO DO SISTEMA INTEGRADO DE AVALIAÇÃO DE IMPACTO RADIOLÓGICO AMBIENTAL EM SITUAÇÕES DEEMERGÊNCIA PARA A AVALIAÇÃO DA EXPOSIÇÃO RADIOLÓGICA DE POPULAÇÕES DE ÁREAS URBANASFile: E01_448.pdfDESENVOLVIMENTO DE UM SISTEMA INTEGRADO PARA AVALIAÇÃO DE IMPACTO RADIOLÓGICO AMBIENTAL EMSITUAÇÕES DE EMERGÊNCIAFile: E01_449.pdf

Cordeiro, Marta NascimentoPURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVE PROBEFile: E07_652.pdf

Corrales, EnriqueFABRICATION, QUALIFICATION AND CALIBRATION OF 60Co SEALED SOURCESFile: E06_774.pdf

Corrêa, Alan Anatoly de SouzaDETECÇÃO E ESPECTROMETRIA DE ELÉTRONS DE CONVERSÃO INTERNA E PARTÍCULAS BETA COM DIODOS DE SIFile: E04_440.pdf



inac2002VI ENAN

Authors


Corrêa, Rosangela da SilveiraMANAGEMENT OF LOW AND MEDIUM LEVEL RADIOACTIVE WASTE IN THE UNIVERSITY OF BRAZÍLIA, THE CAPITAL OFBRAZILFile: E05_443.pdf

Correchel, VladiaVARIABILIDADE ESPACIAL DO “FALLOUT” DE 137Cs ENTRE ÁREAS DE REFERÊNCIA. I. MUNICÍPIOS DE PIRACICABA,NOVA ODESSA E CAMPINASFile: E08_322.pdf

Costa, Alessandro Martins daDESEMPENHO DE UMA CÂMARA DE IONIZAÇÃO ESPECIAL PARA CONTROLE DA QUALIDADE EM RADIOTERAPIAFile: E01_683.pdf

Costa, Ana Cristina Moraes daANÁLISE MULTIELEMENTAR DE ÁGUA MINERAL UTILIZANDO TXRF COM RADIAÇÃO SÍNCROTRONFile: E02_658.pdf

Costa, Antonella LombardiREVISÃO DE TRABALHOS E PROPOSTA DE EXPLORAÇÃO DA TÉCNICA DE NEUTRONGRAFIA NO REATOR TRIGA IPR-R1DO CDTNFile: E02_214.pdfEXPLORAÇÃO DO FEIXE DE NÊUTRONS EMERGENTE DO REATOR TRIGA IPR-R1 (MARK-I) PARA APLICAÇÕES GERAISFile: E13_215.pdf

Costa, Carlos Alberto RodriguesRESPOSTA DOS EQUIPAMENTOS E ATUAÇÃO DA EQUIPE DE RADIOPROTEÇÃO NA SOLUÇÃO DO INCIDENTE NO REATORIEA-R1, QUANDO DO VAZAMENTO DE UM ELEMENTO COMBUSTÍVEL.File: E01_638.pdf

Costa, Elizabeth Cristina Soares daMEDIDA DA POROSIDADE NO SOLO TRe (Terra Roxa Estruturada) UTILIZANDO A TÉCNICA DE TRANSMISSÃO DE RAIOS GAMAFile: E08_320.pdf

Costa, Fábio Eduardo daESPECTRÔMETRO DE ENERGIA PORTÁTIL UTILIZANDO DETECTOR DE CsI(Tl) COM FOTODIODOFile: E04_172.pdfDESENVOLVIMENTO E IMPLANTAÇÃO DE UM IRRADIADOR MULTIPROPÓSITO DE COBALTO-60 TIPO COMPACTOFile: E12_501.pdf

Costa, IsoldaCHARACTERIZATION OF CORROSION PRODUCTS FROM Nd-Fe-B MAGNETS USED IN DENTAL PHOSTHESESFile: E02_656.pdf

Costa, Zélia M. daCARACTERIZAÇÃO DA RESPOSTA RPE DOS EXCIPIENTES DOS MEDICAMENTOS PARA APLICAÇÃO EM DOSIMETRIA DEACIDENTEFile: E01_498.pdf

Cotrim, Marycel Elena BarbozaDESENVOLVIMENTO DE METODOLOGIA PARA AVALIAÇÃO DE IMPUREZAS EM U3O8 POR ICP-OESFile: E02_081.pdf



inac2002VI ENAN

Authors


Couceiro, José NelsonVERIFICAÇÃO DA VIABILIDADE DA DETECÇÃO DE VIRIONS, ATRAVÉS DA ANÁLISE POR ATIVAÇÃO COM NÊUTRONSFile: E10_011.pdf

Coutinho, Célia Maria CamposMÉTODO SIMPLIFICADO PARA AVALIAR A QUALIDADE DO SISTEMA MAMOGRÁFICOFile: E07_663.pdf

Cozzolino, Silvia M.F.DETERMINAÇÃO DE ELEMENTOS MINERAIS E TRAÇOS EM DIETAS PELA TÉCNICA DE ATIVAÇÃO NEUTRÔNICAFile: E02_562.pdf

Crispim, Verginia ReisCÁLCULO DOS FATORES DE CONVERSÃO DE KERMA NO AR PARA EQUIVALENTE DE DOSE AMBIENTAL PARA FEIXEMONOENERGÉTICO DE FÓTONS ENTRE 0,01 MeV e 50 MeVFile: E01_134.pdfACOMPANHAMENTO DO CRESCIMENTO DE RAÍZES DE FEIJÃO UTILIZANDO-SE A TÉCNICA NEUTRONGRÁFICAFile: E08_022.pdfRESPOSTAS DE TRADESCANTIA A UMA SIMULAÇÃO DE AUMENTO DA RADIOATIVIDADE NATURALFile: E09_060.pdfVERIFICAÇÃO DA VIABILIDADE DA DETECÇÃO DE VIRIONS, ATRAVÉS DA ANÁLISE POR ATIVAÇÃO COM NÊUTRONSFile: E10_011.pdf

Cruz, J.99mTc-EDTA AND 99mTc-DTPA COMPLEXES AS HYDROLOGICAL TRACERSFile: E06_073.pdf

Cruz, Manoel Tiago Freitas daGAMMA SPECTROSCOPY OF EXCITED LEVELS IN 193IrFile: E10_284.pdfSPIN OF EXCITED LEVELS IN 149PmFile: E10_372.pdfESPECTROSCOPIA GAMA NOS NÍVEIS EXCITADOS DE 155EuFile: E10_374.pdf

Cuchet, Jean-MarieRADWASTE STREAMS TREATMENT AND CONDITIONING IN BELGIUMFile: E05_252.pdf

Cunha, Edgar Ferrari daESTUDO DA RECUPERAÇÃO DO MATERIAL NÃO REAGIDO NO REATOR DE CHAMA (CINZAS DE UF6) PARA REUTILIZAÇÃONO CICLO DO COMBUSTÍVEL NUCLEARFile: E05_107.pdf

Cunha, Ieda I. L.INGESTÃO DE 210Pb E 210Po PELO CONSUMO DE PEIXES NO SISTEMA CANANÉIA-IGUAPE, SÃO PAULO, BRASILFile: E03_476.pdfNÍVEIS DE 210Pb E 210Po EM ÁGUAS DOS CANAIS DO SISTEMA COSTEIRO CANANÉIA-IGUAPE (SÃO PAULO, BRASIL)File: E03_477.pdf

Cunha, José Waldemar Silva Dias daOBTENÇÃO DE CLORETO DE TERRAS RARAS ANIDRO EM LEITO FLUIDIZADOFile: E11_531.pdf



inac2002VI ENAN

Authors


Cunha, Kenya Dias daCHARACTERIZATION OF MONAZITE DUST PARTICLESFile: E02_721.pdf

Cunha, Paulo Gonçalves daPROJETO DE UM MONITOR INDIVIDUAL PARA AVALIAÇÃO DA DOSE EM TERMOS DE Hp (0,07) NAS MÃOSFile: E01_569.pdf

Dalaqua Jr., LeonardoNUCLEAR METHODOLOGY FOR STUDYING BIOLOGICAL FUNCTIONS OF MAMMALIANS SUBMITTED TO URANIUMINGESTIONFile: E02_418.pdf

Dalmázio, IlzaAVALIAÇÃO DA CONTAMINAÇÃO POR METAIS ASSOCIADA AO DESPEJO DE CHORUME NO RIO CURURUPE-ILHÉUS-BAUTILIZANDO K0-INAA E ICP-MSFile: E03_146.pdf

Danda, Karina Polo NorteRADIOIMUNOENSAIO PARA DETERMINAÇÃO DO HORMÔNIO TIREOIDEANO NA PROLE DE RATAS HIPOTIREOIDEAS EHIPERTIREOIDEASFile: E09_312.pdf

Dantas, Ana Letícia A.CALIBRAÇÃO DA UNIDADE DE CONTADOR DE CORPO INTEIRO DO IRD PARA MEDIDAS IN VIVO DE PB-210 EM TECIDOÓSSEO E PULMONARFile: E01_058.pdfESTIMATIVA DE BACKGROUND EM MEDIDAS IN VIVO DE BAIXA ENERGIA ATRAVÉS DA CORRELAÇÃO COM PARÂMETROSANTROPOMÉTRICOS E COM O CONTEÚDO CORPORAL DE POTÁSSIOFile: E01_059.pdf

Dantas, Bernardo MaranhãoCALIBRAÇÃO DA UNIDADE DE CONTADOR DE CORPO INTEIRO DO IRD PARA MEDIDAS IN VIVO DE PB-210 EM TECIDOÓSSEO E PULMONARFile: E01_058.pdf .ESTIMATIVA DE BACKGROUND EM MEDIDAS IN VIVO DE BAIXA ENERGIA ATRAVÉS DA CORRELAÇÃO COM PARÂMETROSANTROPOMÉTRICOS E COM O CONTEÚDO CORPORAL DE POTÁSSIOFile: E01_059.pdf

Dantas, Elizabeth Sonoda KeikoDESENVOLVIMENTO DE METODOLOGIA PARA AVALIAÇÃO DE IMPUREZAS EM U3O8 POR ICP-OESFile: E02_081.pdfCHARACTERIZATION OF CORROSION PRODUCTS FROM Nd-Fe-B MAGNETS USED IN DENTAL PHOSTHESESFile: E02_656.pdf

Delgado, José UbiratanEVALUATION OF THE HALF-LIVES FOR DIFFERENT NUCLIDES BY MEANS OF GAMMA-RAY SPECTROMETRYFile: E07_240.pdf

Delincée, HenryTESTE DO COMETA NA DETECÇÃO DE ALHO IRRADIADOFile: E08_334.pdf



inac2002VI ENAN

Authors


Deppman, A.THE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Deshpande, AshokFUZZY MULTI-OBJECTIVE DECISION MAKING ON A LOW AND INTERMEDIATE LEVEL WASTE REPOSITORY SAFETYASSESSMENTFile: E05_427.pdf

Detilleux, MichelRADIOACTIVE WASTE CHARACTERIZATION IN BELGIUMFile: E05_244.pdfRADWASTE STREAMS TREATMENT AND CONDITIONING IN BELGIUMFile: E05_252.pdf

Dias, Ailton FernandoSISTEMA DE ANÁLISE DIMENSIONAL PARA ENSAIOS DE ELEMENTOS COMBUSTÍVEIS EM FORMA DE PLACAS EM CÉLULASQUENTESFile: E04_497.pdfCONCEPÇÃO INTEGRADA DE SISTEMAS MISTOS HARDWARE/SOFTWARE UTILIZADOS EM INSTRUMENTAÇÃO NUCLEARFile: E04_766.pdf

Dias, Artur FlávioNEUTRON AND GAMMA RAY DOSE EQUIVALENT ESTIMATES FOR THE IEAV LINEAR ACCELERATORFile: E01_170.pdfCOMPOSIÇÃO ELEMENTAR DE As, Br, La, Sm e Rb EM AMOSTRAS DE VEGETAIS E SOLO DE PASTAGEM TÍPICA DA REGIÃOSERRANA DO VALE DO PARAÍBAFile: E02_109.pdf

Dias, Carla Roberta de B. R.ANÁLISE DA IMUNORREATIVIDADE DO ANTICORPO MONOCLONAL ANTI-CEA IOR-1 MARCADO COM 99mTcFile: E07_705.pdf

Dias, Cíntia MelazoMANAGEMENT OF LOW AND MEDIUM LEVEL RADIOACTIVE WASTE IN THE UNIVERSITY OF BRAZÍLIA, THE CAPITAL OF BRAZILFile: E05_443.pdf

Dias, Diones AparecidaANÁLISE ELEMENTAR DE Alternanthera maritima E Blutaparon portulacoides (GOMPHRENEAE, AMARANTHACEAE) PORFLUORESCÊNCIA DE RAIOS XFile: E03_198.pdf

Dias, Fábio C.THE BRAZILIAN SAFEGUARDS ANALYTICAL LABORATORYFile: E01_479.pdf

Dias, HélioGAMMA SPECTROSCOPY OF EXCITED LEVELS IN 193IrFile: E10_284.pdfESPECTROSCOPIA GAMA NOS NÍVEIS EXCITADOS DE 155EuFile: E10_374.pdf

Dias, Humberto GalvãoAVALIAÇÃO DOSIMÉTRICA EM FANTOMA GERADO POR UM IRRADIADOR EPITÉRMICO COM CARGA U235-Cf252File: E07_255.pdf



inac2002VI ENAN

Authors


Dias, Katia R.ANÁLISE ELEMENTAR DE AMOSTRAS DENTÁRIAS HUMANAS USANDO SRXRFFile: E02_661.pdf

Dias, Mauro da SilvaPRIMARY STANDARDIZATION OF 153Sm RADIOACTIVE SOLUTIONFile: E04_483.pdfSISTEMA ELETRÔNICO PARA AUTOMATIZAÇÃO DE MEDIDAS DE CORRENTES PRODUZIDAS POR CÂMARAS DE IONIZAÇÃOFile: E04_634.pdf

Díaz, Marlén PérezOPTIMISATION METHOD FOR THE ADMINISTERED ACTIVITY TO PATIENTS IN Tc-99m-HMPAO CEREBRAL BLOOD FLOWSPECT IN ADULTSFile: E07_136.pdf

Díaz, Reinaldo RoqueOPTIMISATION METHOD FOR THE ADMINISTERED ACTIVITY TO PATIENTS IN Tc-99m-HMPAO CEREBRAL BLOOD FLOWSPECT IN ADULTSFile: E07_136.pdf

Diniz, Carlos RibeiroPURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVEPROBEFile: E07_652.pdf

Diré, Gláucio L.ASSESSMENT OF THE EFFECT OF MENTHA CRISPA L. (HORTELÃ) EXTRACT ON THE LABELING OF RED BLOOD CELLSAND PLASMA PROTEINS WITH TECHNETIUM-99MFile: E07_041.pdfESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOSFile: E07_241.pdf

Diz, RicardoEVOLUÇÃO DA MONITORAÇÃO AMBIENTAL COM TLD NO IRDFile: E01_534.pdfMONITORAÇÃO INDIVIDUAL DE EXTREMIDADES: 30 ANOS DE EXPERIÊNCIAFile: E01_565.pdfMONITORAÇÃO INDIVIDUAL DE NÊUTRONS: 18 ANOS DE EXPERIÊNCIAFile: E01_566.pdf

Domarco, Rachel ElisabethANÁLISE VISUAL DOS EFEITOS DA RADIAÇÃO GAMA ASSOCIADA À ATMOSFERA MODIFICADA NO ARMAZENAMENTO DOLIMÃO ‘TAHITI’ – ENSAIO PRELIMINARFile: E08_303.pdfRADIAÇÃO GAMA NA CONSERVAÇÃO DE PUPUNHA (Bactris gasipaes HBK) MINIMAMENTE PROCESSADAFile: E08_776.pdfLEITE DE CABRA IRRADIADO COM RAIOS GAMA: ANÁLISE SENSORIAL COMPARATIVA COM O LEITE DE CABRA PASTEURIZADOFile: E08_900.pdf

Domingues, Maria de Lourdes F.SIMULAÇÃO DA SORÇÃO DE AMERÍCIO NO SISTEMA EPU-DEHPA USANDO Fe(III)File: E03_603.pdf



inac2002VI ENAN

Authors


Domínguez, J.99mTc-EDTA AND 99mTc-DTPA COMPLEXES AS HYDROLOGICAL TRACERSFile: E06_073.pdf

Duarte, Celina LopesDETERMINAÇÃO DO GRAU DE REMOÇÃO DE METAIS TÓXICOS COMO As, Hg, Pb e Cd EM SOLUÇÃO SIMULADA DEEFLUENTES INDUSTRIAIS NA PRESENÇA DE “SCAVENGERS” APÓS A IRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E02_167.pdfRADIAÇÕES IONIZANTES E O REUSO DAS ÁGUASFile: E03_713.pdfINFLUÊNCIA DA PRESENÇA DE METAIS NA EFICIÊNCIA DE DEGRADAÇÃO DE COMPOSTOS ORGÂNICOS PELAIRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E03_717.pdfESTUDO DA RADIODEGRADAÇÃO DOS COMPOSTOS ORGÂNICOS ODORÍFICOS GEOSMINA E METILISOBORNIOLPRESENTES EM ÁGUA DO SISTEMA GUARAPIRANGAFile: E03_760.pdfANÁLISE DO DANO DE RADIAÇÃO GAMA EM DETECTORES ORGÂNICOS CONTENDO PPOFile: E04_456.pdf

Duarte, Deborah C. S.DETERMINAÇÃO DE 34S POR ESPECTROMETRIA DE MASSAS (% EM ÁTOMOS), DO S-SULFATO DISPONÍVEL EM AMOSTRASDE SOLO.File: E02_276.pdf

Dutra Neto, AimoréSISTEMA DE ANÁLISE DIMENSIONAL PARA ENSAIOS DE ELEMENTOS COMBUSTÍVEIS EM FORMA DE PLACAS EM CÉLULASQUENTESFile: E04_497.pdf

Echeverría, Hernán E.MINERALIZAÇÃO BRUTA DO NITROGÊNIO EM SOLOS DE ALTA FERTILIDADE. EFEITO DO MANEJO E A PROFUNDIDADEDE AMOSTRAGEMFile: E08_775.pdf

Eiras, Maria Izabel O.DETERMINAÇÃO DE ELEMENTOS MINERAIS E TRAÇOS EM DIETAS PELA TÉCNICA DE ATIVAÇÃO NEUTRÔNICAFile: E02_562.pdf

Enokihara, Cyro TeitiSISTEMA DE CONTROLE E CONTABILIDADE DE MATERIAIS NUCLEARES NO IPEN-CNEN/SPFile: E13_768.pdf

Ensaf, Mohammad RezaDESIGN, CONSTRUCTION AND CALIBRATION OF PLANE-PARALLEL IONIZATION CHAMBERS AT THE SSDL OF IRANFile: E01_079.pdfPRODUCTION OF SELENIUM-75 AND RADIOSYNTHESIS OF [75Se]-4-ETHOXYCARBONYL-5-METHYL-1,2,3-SELENADIAZOLEFile: E07_065.pdf

Enzweiler, JacintaANÁLISE DE ELEMENTOS MAIORES E MENORES EM SOLOS POR ATIVAÇÃO NEUTRÔNICA E FLUORESCÊNCIA DE RAIOSXFile: E02_470.pdf



inac2002VI ENAN

Authors


Estrada, Júlio José S.CARACTERIZAÇÃO DO MONITOR INTELIGENTE DE RADIAÇÃO, MODELO MIR 7026, PARA MEDIDAS DE EQUIVALENTE DEDOSE AMBIENTE, H*(10)File: E04_029.pdf

Evangelista, Renato Augusto de OliveiraESTUDO DA VARIABILIDADE TEMPORAL DIURNA DE δ15N E δ13C EM EFLUENTES DOMÉSTICOS DA CIDADE DEPIRACICABA (SP)File: E03_242.pdf

Evora, Maria CecíliaCARACTERIZAÇÃO DA POLIAMIDA-6 RECICLADA IRRADIADA POR FEIXE DE ELÉTRONSFile: E11_398.pdf

Farias, Luciana AparecidaAPLICAÇÃO DE 222Rn COMO TRAÇADOR DA DESCARGA DE ÁGUAS SUBTERRÂNEAS NA REGIÃO COSTEIRA DE UBATUBA,SÃO PAULOFile: E03_624.pdf

Farias, Terence P.DACRIOCINTILOGRAFIA NUCLEAR: AVALIAÇÃO DA DRENAGEM LACRIMAL EM PACIENTES ONCOLÓGICOS PÓSCIRÚRGICOS DE TUMORES DE FACEFile: E07_221.pdf

Fávaro, Déborah Inês TeixeiraAPLICAÇÃO DAS TÉCNICAS DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONS E FLUORESCÊNCIA DE RAIOS X EM AMOSTRADE FÍGADO BOVINOFile: E02_527.pdfDETERMINAÇÃO DE ELEMENTOS MINERAIS E TRAÇOS EM DIETAS PELA TÉCNICA DE ATIVAÇÃO NEUTRÔNICAFile: E02_562.pdfDISTRIBUIÇÃO VERTICAL DE ELEMENTOS MENORES E TRAÇOS POR ANÁLISE POR ATIVAÇÃO NEUTRÔNICAINSTRUMENTAL NOS SEDIMENTOS DO ESTUÁRIO DE SANTOS E SÃO VICENTE, SÃO PAULO, BRASILFile: E03_294.pdf

Federico, Claudio AntonioESTUDO DO EQUILÍBRIO ELETRÔNICO NO ALUMÍNIO UTILIZANDO O DOSÍMETRO TERMOLUMINESCENTE DE CaSO4:DyFile: E01_316.pdf

Feher, Ana Cláudia M.IDENTIFICATION OF ORGANIZATION VALUES ACCORDING TO THE PERCEPTION OF THE EMPLOYEES OF THE ENERGETICAND NUCLEAR RESEARCH INSTITUTE- IPENFile: E14_487.pdf

Feher, AnselmoCARACTERIZAÇÃO DE TUBO DE TITÂNIO PARA CONFECÇÃO DE SEMENTES DE IODO-125 UTILIZADAS EM BRAQUITERAPIAFile: E11_511.pdf

Felinto, HermiURANYL NITRATE COMPLEX WITH THE LIGAND 1,3-DITHIANE-1-OXIDE (DTSO)File: E11_598.pdf



inac2002VI ENAN

Authors


Felinto, Maria Claudia França da CunhaURANYL NITRATE COMPLEX WITH THE LIGAND 1,3-DITHIANE-1-OXIDE (DTSO)File: E11_598.pdf

Fenilli, Tatiele Anete BergamoABSORÇÃO, TRANSLOCAÇÃO E REDISTRIBUIÇÃO DO NITROGÊNIO (15N) EM LARANJEIRAFile: E08_139.pdf

Ferenaz, GuillermoFABRICATION, QUALIFICATION AND CALIBRATION OF 60Co SEALED SOURCESFile: E06_774.pdf

Fernandes, Elisabete A. De NadaiDISTRIBUIÇÃO DE RADIONUCLÍDEOS NATURAIS NOS PRODUTOS DA FABRICAÇÃO DE ÁCIDO FOSFÓRICO COM ROCHAFOSFÁTICA DE ITATAIA - CEARÁFile: E03_046.pdfMIGRATION OF 226 Ra, 228 Ra, 210Pb, U AND Th FROM PHOSPHOGYPSUMFile: E03_509.pdf

Fernandes, Horst Richard Sebastian MonkenON THE NEED OF INCOPORPORATING THE INTERVENTION CONCEPT IN THE BRAZILIAN RADIOLOGICAL PROTECTIONREGULATORY FRAMEWORKFile: E01_408.pdfESTUDO PRELIMINAR DA LIXIVIAÇÃO DAS PILHAS DE MINÉRIO EXAURIDO DA UNIDADE DE CONCENTRAÇÃO DE URÂNIO– URA/INB, COM VISTA À AVALIAÇÃO DE IMPACTO AMBIENTALFile: E05_403.pdf

Fernandes, OctávioPCR ASSOCIADO A HIBRIDIZAÇÃO COM SONDAS RADIOATIVAS DE DNA PARA A IDENTIFICAÇÃO DE INFECÇÃOSUBCLINICA CAUSADA POR LEISHMANIA CHAGASIFile: E07_749.pdf

Fernandes, PauloCHARACTERIZATION OF MONAZITE DUST PARTICLESFile: E02_721.pdf

Fernandes Neto, José MariaANÁLISE DO DANO DE RADIAÇÃO GAMA EM DETECTORES ORGÂNICOS CONTENDO PPOFile: E04_456.pdf

Ferracini, RicardoDETECÇÃO DE ABERRAÇÕES CROMOSSÔMICAS EM LINHAGEM TUMORAL APÓS IRRADIAÇÃOFile: E09_902.pdf

Ferreira, Ana Cristina MeloVALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137Cs EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOS TROPICAISFile: E01_752.pdf

Ferreira, João CoutinhoTRANSFORMAÇÃO VIA PERÓXIDO DE UM HIDRÓXIDO BRUTO DE TÓRIO EM NITRATO PARA CAMISAS DE LAMPIÃOFile: E11_114.pdf

Ferreira, Marina LimaDOSIMETRÍA DE ALTAS DOSIS Y CONTROL DE LA CALIDAD DEL PROCESO DE IRRADIACIÓN EN EL CEADENFile: E01_765.pdf



inac2002VI ENAN

Authors


Ferreira, Rubemar de SouzaCOMPARATIVE MEASUREMENTS OF GROWTH RINGS IN TREES USING A MICROSCOPIC METHOD AND DIGITAL X- RAYDENSITY IMAGESFile: E03_157.pdfPESQUISA DO ESPECTRO DE RAIOS-X NA AQUISIÇÃO E PROCESSAMENTO DE IMAGENS DIGITAIS PARA A DETECÇÃODE DESORDENS INTERNAS EM FRUTOS DA MANGUEIRA (Mangifera indica L.)File: E08_093.pdf

Ferreto, Hélio Fernando RodriguesESTUDO DA RECUPERAÇÃO DO MATERIAL NÃO REAGIDO NO REATOR DE CHAMA (CINZAS DE UF6) PARA REUTILIZAÇÃONO CICLO DO COMBUSTÍVEL NUCLEARFile: E05_107.pdf

Ferro, Waldir PedroESTUDO DO EFEITO DA RADIAÇÃO NAS PROPRIEDADES MECÂNICAS, DE FLAMABILIDADE E DE FIO INCANDESCENTEDA POLIAMIDA 6.6 COM E SEM REFORÇO DE FIBRA DE VIDROFile: E11_402.pdf

Figueira, André LuizA PRELIMINARY STUDY ON THE BEHAVIOUR OF TRACE ELEMENTS IN SEDIMENT CORES FROM ILHA GRANDE (RIO DEJANEIRO) BY NEUTRON ACTIVATION ANALYSISFile: E03_464.pdf

Figueira, Rubens C. L.APLICAÇÃO DA NAA NO ESTUDO DO COMPORTAMENTO GEOQUÍMICO DE ELEMENTOS DE INTERESSE EM SEDIMENTOSLACUSTRES DE UMA ESTAÇÃO DE TRATAMENTO DE ESGOTOFile: E02_371.pdfINGESTÃO DE 210Pb E 210Po PELO CONSUMO DE PEIXES NO SISTEMA CANANÉIA-IGUAPE, SÃO PAULO, BRASILFile: E03_476.pdfNÍVEIS DE 210Pb E 210Po EM ÁGUAS DOS CANAIS DO SISTEMA COSTEIRO CANANÉIA-IGUAPE (SÃO PAULO, BRASIL)File: E03_477.pdf

Figueiredo, Ana Maria GracianoAPLICAÇÃO DA NAA NO ESTUDO DO COMPORTAMENTO GEOQUÍMICO DE ELEMENTOS DE INTERESSE EM SEDIMENTOSLACUSTRES DE UMA ESTAÇÃO DE TRATAMENTO DE ESGOTOFile: E02_371.pdfNUCLEAR METHODOLOGY FOR STUDYING BIOLOGICAL FUNCTIONS OF MAMMALIANS SUBMITTED TO URANIUMINGESTIONFile: E02_418.pdfDISTRIBUIÇÃO DE ELEMENTOS METÁLICOS EM SEDIMENTOS DE DRENAGENS DO PARQUE ESTADUAL DA ILHA ANCHIETA- SPFile: E02_463.pdfANÁLISE DE ELEMENTOS MAIORES E MENORES EM SOLOS POR ATIVAÇÃO NEUTRÔNICA E FLUORESCÊNCIA DE RAIOSXFile: E02_470.pdfA PRELIMINARY STUDY ON THE BEHAVIOUR OF TRACE ELEMENTS IN SEDIMENT CORES FROM ILHA GRANDE (RIO DEJANEIRO) BY NEUTRON ACTIVATION ANALYSISFile: E03_464.pdf

Figueiredo, Maria ElizabeteATENDIMENTOS ÀS EMERGÊNCIAS RADIOLÓGICAS NO ESTADO DE MINAS GERAISFile: E01_298.pdf



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Authors


Figueredo, NancyRADIOINMUNOENSAYO PARA PROGESTERONA EN LECHE BOVINAFile: E08_250.pdf

Flores, Alejandra VivianaVALIDATION PROCEDURE FOR THE FABRICATION SEQUENCE OF SELF-POWERED NEUTRON DETECTORS FOR NPPDEVELOPED BY CNEAFile: E04_719.pdf

Flores, WalterDEPENDÊNCIA ANGULAR DE DOSÍMETROS TERMOLUMINESCENTES UTILIZADOS EM TOMOGRAFIA COMPUTADORIZADAFile: E01_111.pdf

Fonseca, Evaldo Simões daCÁLCULO DE MONTE CARLO DA CONSTANTE DE TAXA DE DOSE NA ÁGUA PARA A SEMENTE DE 192IrFile: E01_644.pdf

Fonseca, Luis Eduardo C.THE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Fonseca, Thiago Pavan BarciaCHEMICAL TREATMENT OF LOW-LEVEL LIQUID WASTE – A CASE STUDY (TRATAMENTO QUÍMICO DE REJEITOS LÍQUIDOSDE BAIXA ATIVIDADE – CASO EXEMPLO)File: E05_620.pdf

Forbicini, Christina A. L. G. O.RETENÇÃO DO CRÔMIO(III) EM TROCADOR INORGÂNICO DE FOSFATO DE ZIRCÔNIO CRISTALINO MODIFICADOFile: E03_370 .pdfPRODUÇÃO DE LANTÂNIO DE ALTA PUREZA PARA APLICAÇÃO EM P&DFile: E11_173.pdf

Fortes-Dias, Consuelo LatorreDETECÇÃO DE ABERRAÇÕES CROMOSSÔMICAS EM LINHAGEM TUMORAL APÓS IRRADIAÇÃOFile: E09_902.pdf

Forti, José AndersonRECUPERAÇÃO DO NITROGÊNIO (15N) DO AMÔNIO E DO NITRATO APLICADO AO SOLO PELA CANA-DE-AÇÚCARFile: E08_306.pdf

Franchescin, Marcelo J.OTIMIZAÇÃO DE UM DECANTADOR/FLOCULADOR DE PLACAS PLANAS VERTICAIS EMPREGANDO-SE TRAÇADORESRADIOATIVOSFile: E06_901.pdf

Franco, Milton BatistaDETERMINAÇÃO DE Ca, Cr, Cu, Fe, K, Mg, Na E Zn EM PLANTAS MEDICINAIS BRASILEIRAS POR ATIVAÇÃO NEUTRÔNICAE ABSORÇÃO ATÔMICAFile: E02_206.pdfDETERMINAÇÃO DOS PARÂMETROS NUCLEARES a, f E TEMPERATURA DE NÊUTRONS NO REATOR TRIGA MARK I IPRR1File: E02_365.pdf



inac2002VI ENAN

Authors


Franklin, Mariza RamalhoON THE NEED OF INCOPORPORATING THE INTERVENTION CONCEPT IN THE BRAZILIAN RADIOLOGICAL PROTECTIONREGULATORY FRAMEWORKFile: E01_408.pdfESTUDO PRELIMINAR DA LIXIVIAÇÃO DAS PILHAS DE MINÉRIO EXAURIDO DA UNIDADE DE CONCENTRAÇÃO DE URÂNIO– URA/INB, COM VISTA À AVALIAÇÃO DE IMPACTO AMBIENTALFile: E05_403.pdf

Freijo, Jose LuisFABRICATION, QUALIFICATION AND CALIBRATION OF 60Co SEALED SOURCESFile: E06_774.pdf

Freire Júnior, MurilloPESQUISA DO ESPECTRO DE RAIOS-X NA AQUISIÇÃO E PROCESSAMENTO DE IMAGENS DIGITAIS PARA A DETECÇÃODE DESORDENS INTERNAS EM FRUTOS DA MANGUEIRA (Mangifera indica L.)File: E08_093.pdf

Freitas, Antonio Alves deTRANSFORMAÇÃO VIA PERÓXIDO DE UM HIDRÓXIDO BRUTO DE TÓRIO EM NITRATO PARA CAMISAS DE LAMPIÃOFile: E11_114.pdf

Freitas, Rosimeire de SouzaESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOSFile: E07_241.pdfASSESSMENT OF THE EFFECT OF PHYTIC ACID ON THE LABELING OF BLOOD CELLS AND PLASMA PROTEINS WITHTECHNETIUM-99mFile: E09_227.pdf

Fuente, Guilhermo De LaTHE USE OF NAA FOR CHEMICAL CHARACTERISATION OF CLAY SOURCES WITHIN AN ARCHAEOLOGICAL CERAMICSTUDY IN THE CHASCHUIL-ABAUCAN REGION (TINOGASTA, CATAMARCA, ARGENTINA)File: E02_119.pdf

Fuga, AlessandraANÁLISE DE ESPÉCIES DE LIQUENS EPIFÍTICOS PARA USO NA BIOMONITORAÇÃO DE POLUENTES ATMOSFÉRICOSFile: E03_475.pdf

Fukuma, Henrique TakujiFATORES DE TRANSLOCAÇÃO DE 60CO, 90SR E 137CS EM BATATEIRA E MILHEIRO.File: E01_580.pdfDISTRIBUIÇÃO DE RADIONUCLÍDEOS NATURAIS NOS PRODUTOS DA FABRICAÇÃO DE ÁCIDO FOSFÓRICO COM ROCHAFOSFÁTICA DE ITATAIA - CEARÁFile: E03_046.pdfEVALUATION OF THE 2-THIOBARBITURIC ACID METHOD FOR THE MEASUREMENT OF LIPID OXIDATION IN MECHANICALLYDEBONED GAMMA IRRADIATED CHICKEN MEATFile: E08_400.pdf

Fulfaro, RobertoDETERMINAÇÃO DE ELEMENTOS TRAÇO NOS FITOFÁRMACOS GINSENG E GINKGO BILOBAFile: E02_465.pdf

Furieri, Rosanne Cefaly de Aranda AmadoA POSITION SENSITIVE GAS DETECTOR FOR TOMOGRAPHY WITH THERMAL NEUTRONSFile: E04_301.pdf



inac2002VI ENAN

Authors


Furlan, AdrianaCOMPOSIÇÃO QUÍMICA DE SOLO E BIOSSÓLIDO PELA TÉCNICA DE FLUORESCÊNCIA DE RAIOS XFile: E02_299.pdf

Furtado, Valdecir VeroneseAPLICAÇÃO DE 222Rn COMO TRAÇADOR DA DESCARGA DE ÁGUAS SUBTERRÂNEAS NA REGIÃO COSTEIRA DE UBATUBA,SÃO PAULOFile: E03_624.pdf

Gaburo, Janete CristinaIMPLEMENTAÇÃO DO SISTEMA DA QUALIDADE NO LABORATÓRIO DE RADIOTOXICOLOGIA DO IPENFile: E01_213.pdf

Galante, Ana Maria SistiESTUDO DO EFEITO DA ADIÇÃO DO DIÓXIDO DE MANGANÊS AO NITRATO DE POTÁSSIO E SUA UTILIZAÇÃO COMODOSÍMETROFile: E01_357.pdfDOSIMETRY WITH RADIOCHROMIC MATERIALS IN ACCELERATED ELECTRONS FIELDS – HIGH DOSE PROCESSESFile: E01_512.pdf

Galante, Ocimar LuizCARACTERIZAÇÃO DA RESPOSTA RPE DOS EXCIPIENTES DOS MEDICAMENTOS PARA APLICAÇÃO EM DOSIMETRIA DEACIDENTEFile: E01_498.pdfESTUDOS PRELIMINARES DAS PROPRIEDADES DOSIMÉTRICAS DO CaSO 4:MN PELA TÉCNICA ESPECTROSCÓPICA DERPEFile: E01_632.pdf

Galisteo Jr., Andrés JimenezTAQUIZOÍTOS DE Toxoplasma gondii IRRADIADOS COM 255 Gy INDUZEM DIMINUIÇÃO DE CISTOS E LESÕES CEREBRAIS,EM CAMUNDONGOS DESAFIADOS COM CISTOS DA CEPA ME-49File: E09_688.pdf

Gamboa, Regla99mTc-EDTA AND 99mTc-DTPA COMPLEXES AS HYDROLOGICAL TRACERSFile: E06_073.pdf

Garcia, F.THE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

García, Francisco Pablo RamírezUN MÉTODO RADIACTIVO PARA MEDIR EL FLUJO, POR UN TUBO, EN UNA FASE Y SU APLICACIÓN A MÁS FASESFile: E06_193.pdf

Garcia, Marcelo BernardesUTILIZAÇÃO DE CINTILADORES PLÁSTICOS EM SISTEMAS DE DETECÇÃO SENSÍVEIS À POSIÇÃOFile: E04_747.pdf

Gasparin, EleosmarESTUDO DA RECUPERAÇÃO DO MATERIAL NÃO REAGIDO NO REATOR DE CHAMA (CINZAS DE UF6) PARA REUTILIZAÇÃONO CICLO DO COMBUSTÍVEL NUCLEARFile: E05_107.pdf



inac2002VI ENAN

Authors


Gava, Glauber José de CastroUTILIZAÇÃO DO ENXOFRE APLICADO AO SOLO PELA SOJA, AVALIADO COM AS TÉCNICAS ISOTÓPICAS: 34S (ESTÁVEL) E35S (RADIOATIVO)File: E08_264.pdfEFEITO DA UMIDADE DO SOLO NA TAXA BRUTA DE MINERALIZAÇÃO DO NITROGÊNIOFile: E08_266.pdfRECUPERAÇÃO DO NITROGÊNIO (15N) DO AMÔNIO E DO NITRATO APLICADO AO SOLO PELA CANA-DE-AÇÚCARFile: E08_306.pdf

Gelen, A.DATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANAFile: E03_072.pdf

Genezini, Frederico AntonioGAMMA SPECTROSCOPY OF EXCITED LEVELS IN 193IrFile: E10_284.pdfSPIN OF EXCITED LEVELS IN 149PmFile: E10_372.pdfESPECTROSCOPIA GAMA NOS NÍVEIS EXCITADOS DE 155EuFile: E10_374.pdfESTUDO DA ESTRUTURA NUCLEAR DO 72GeFile: E10_636.pdf

Geraldo, Luiz PauloESTUDO DO EQUILÍBRIO ELETRÔNICO NO ALUMÍNIO UTILIZANDO O DOSÍMETRO TERMOLUMINESCENTE DE CaSO4:DyFile: E01_316.pdfDESENVOLVIMENTO DO MÉTODO A SECO DE REGISTRO DE TRAÇOS DE FISSÃO A SER EMPREGADO NA DETERMINAÇÃODE URÂNIO EM DIVERSOS TIPOS DE AMOSTRAS BIOLÓGICAS E AMBIENTAISFile: E02_513.pdf

Ghilardi, EdsonOXIDATIVE BEHAVIOR OF IRRADIATED POLYPROPYLENE, PREDICTED AS TEMPERATURE-OXIDATIVE INDUCTION TIME(TOIT)File: E11_748.pdf

Giné, Maria FernandaPRÉ-CONCENTRAÇÃO EM SISTEMA DE FLUXO PARA DETERMINAÇÃO MULTIELEMENTAR EM AMOSTRAS DE ÁGUASFLUVIAIS POR FLUORESCÊNCIA DE RAIOS X COM REFLEXÃO TOTALFile: E02_639.pdfREMOÇÃO DE INTERFERENTES EM AMOSTRAS COM ALTOS TEORES DE SÓLIDOS DISSOLVIDOS PARA A DETERMINAÇÃODE ARSÊNIO E SELÊNIO POR TXRFFile: E02_641.pdf

Gobbo, Sarita PricilaRUMEN MICROBIAL GROWTH ESTIMATION USING IN VITRO RADIOPHOSPHOROUS INCORPORATION TECHNIQUEFile: E08_323.pdfINCORPORAÇÃO IN VITRO DO RADIOFÓSFORO PELOS MICRORGANISMOS RUMINAIS EM DIFERENTES PROPORÇÕESDO INÓCULOFile: E08_324.pdf

Góes, Alfredo MirandaPBMC AND MDAMB-231 CELLULAR VIABILITY AFTER TELECOBALT IRRADIATIONFile: E07_763.pdf



inac2002VI ENAN

Authors


Goes, Marcos Maciel deINCORPORAÇÃO DE ÓLEO CONTAMINADO COM TRÍTIO EM CIMENTO, UTILIZANDO UM POLÍMERO ABSORVENTEFile: E05_360.pdf

Gomes, Ana Carla FernandesREMOÇÃO DE INTERFERENTES EM AMOSTRAS COM ALTOS TEORES DE SÓLIDOS DISSOLVIDOS PARA A DETERMINAÇÃODE ARSÊNIO E SELÊNIO POR TXRFFile: E02_641.pdf

Gomes, Heliana de AzevedoEVALUATION OF THE 2-THIOBARBITURIC ACID METHOD FOR THE MEASUREMENT OF LIPID OXIDATION IN MECHANICALLYDEBONED GAMMA IRRADIATED CHICKEN MEATFile: E08_400.pdf

Gomes, Maria L.ESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOSFile: E07_241.pdf

Gomes, Nelson J. P. OlivaANGRA 2 – QUALIFICAÇÃO DO PRODUTO DE REJEITO BETUMINIZADOFile: E05_686.pdf

Gomes, Paulo Maurício CostaALGORITMO PARA AVALIAÇÃO DE FLUXO DE FÓTONS EM TECIDO BASEADO NA TÉCNICA DOS ELEMENTOS FINITOSFile: E07_627.pdf

Gomes, Rosângela FátimaPCR ASSOCIADO A HIBRIDIZAÇÃO COM SONDAS RADIOATIVAS DE DNA PARA A IDENTIFICAÇÃO DE INFECÇÃOSUBCLINICA CAUSADA POR LEISHMANIA CHAGASIFile: E07_749.pdf

Gómez, JoséDATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANAFile: E03_072.pdf

Gonçalez, Odair LelisESTUDO DO EQUILÍBRIO ELETRÔNICO NO ALUMÍNIO UTILIZANDO O DOSÍMETRO TERMOLUMINESCENTE DE CaSO4:DyFile: E01_316.pdf

Gonçalves, Iraci Martinez PereiraSISTEMA DE AQUISIÇÃO DE DADOS DO REATOR IEA-R1File: E04_135.pdf

Gonçalves, Josemary Angélica CorrêaDATA ACQUISITION SYSTEM FOR RESISTIVE CATHODE DETECTORSFile: E04_292.pdfUTILIZAÇÃO DE DIODOS DE Si PARA ESPECTROMETRIA ALFAFile: E04_439.pdfDETECÇÃO E ESPECTROMETRIA DE ELÉTRONS DE CONVERSÃO INTERNA E PARTÍCULAS BETA COM DIODOS DE SIFile: E04_440.pdf



inac2002VI ENAN

Authors


Gonçalves, Mellentino BatistaSPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdf

Gonçalves, S.SPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdf

Gonçalves, Sérgio AlvesEVOLUÇÃO DA MONITORAÇÃO AMBIENTAL COM TLD NO IRDFile: E01_534.pdfMONITORAÇÃO INDIVIDUAL DE EXTREMIDADES: 30 ANOS DE EXPERIÊNCIAFile: E01_565.pdfMONITORAÇÃO INDIVIDUAL DE NÊUTRONS: 18 ANOS DE EXPERIÊNCIAFile: E01_566.pdf

González, Gisela BarreraDOSIMETRÍA DE ALTAS DOSIS Y CONTROL DE LA CALIDAD DEL PROCESO DE IRRADIACIÓN EN EL CEADENFile: E01_765.pdf

Gonzalez, Wilma AraújoEFLUENT TREATMENT WITH LANTHANUM, GADOLINIUM AND CADMIUM THROUGH CROWN ETHERSFile: E02_238.pdf

Gouveia, A.N.THE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Gouveia, Maximiniano Antônio G.SISTEMA COMPACTO DE INSPEÇÃO DE EQUIPAMENTOS E MATERIAIS UTILIZANDO FONTE DE RADIAÇÃO GAMA: UMESTUDO SIMULADOFile: E04_112.pdf

Grecco, Cláudio Henrique dos SantosCARACTERIZAÇÃO DO MONITOR INTELIGENTE DE RADIAÇÃO, MODELO MIR 7026, PARA MEDIDAS DE EQUIVALENTE DEDOSE AMBIENTE, H*(10)File: E04_029.pdf

Gregório, Maurício AbudESPECIAÇÃO E DETERMINAÇÃO DE ARSÊNIO E SELÊNIO EM AMOSTRAS DE ÁGUAS NATURAIS POR FLUORESCÊNCIADE RAIOS X DISPERSIVA EM ENERGIAFile: E03_342.pdf

Grossi, Fabio HenriqueAPLICAÇÃO DA TERMOLUMINESCÊNCIA FOTOESTIMULADA NA ÁREA OFTALMOLÓGICA USANDO-SE CaSO4:DyFile: E01_452.pdf

Grynberg, Suely EpszteinINCORPORATING EXTERNALITIES IN THE ASSESSMENT OF DIFFERENT ENERGY OPTIONS FOR ELECTRICITYPRODUTIONFile: E03_003.pdfENVIRONMENTAL EXTERNALITIES OWED TO THE ELECTRICITY GENERATION: A COMPARISON BETWEEN THE NUCLEARAND THE GAS GENERATIONFile: E03_545.pdf



inac2002VI ENAN

Authors


Guapindaia, VeraESTUDO ARQUEOMÉTRICO DE CERÂMICAS DO AMAZONASFile: E02_197.pdf

Guedes, Elton CarvalhoPROTEÇÃO RADIOLÓGICA EM RADIODIAGNÓSTICO ODONTOLÓGICO EM MINAS GERAISFile: E07_412.pdf

Guedes, João B.DETERMINAÇÃO DE Ca, Cr, Cu, Fe, K, Mg, Na E Zn EM PLANTAS MEDICINAIS BRASILEIRAS POR ATIVAÇÃO NEUTRÔNICAE ABSORÇÃO ATÔMICAFile: E02_206.pdf

Guedes, Selma Matheus LoureiroEFEITO DA RADIAÇÃO GAMA NA ESTRUTURA MOLECULAR DO POLI (ÁLCOOL VINÍLICO)File: E11_421.pdfEFEITO DA [Ti02] NAS PROPRIEDADES DE ATENUAÇÃO DA RADIAÇÃO NO SIMULADOR DE TECIDO HUMANO OBTIDO DOLÁTEX DE BORRACHA NATURAL RADIOVULCANIZADOFile: E11_422.pdfRADICAIS FORMADOS NO N,N-DIMETILAMINOETIL METACRILATO GAMA-IRRADIADOFile: E11_671.pdf

Guevara, Maria Victoria MansoIMPLEMENTATION AND EVALUATION OF k0-INAA FOR ENVIRONMENTAL STUDIESFile: E02_069.pdfTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Guimarães, Alexandre CássioMODELO DE VOXEL PARA AVALIAÇÃO DOSIMÉTRICA APÓS ADMINISTRAÇÃO DE 131IFile: E01_314.pdf

Guimarães, Carla da CostaMONTE CARLO SIMULATIONS OF X-RAY GENERATION AND DETECTIONFile: E10_699.pdf

Guimarães, Celsa M. MaliskaDACRIOCINTILOGRAFIA NUCLEAR: AVALIAÇÃO DA DRENAGEM LACRIMAL EM PACIENTES ONCOLÓGICOS PÓSCIRÚRGICOS DE TUMORES DE FACEFile: E07_221.pdf

Guimarães, LamartineFUZZY MULTI-OBJECTIVE DECISION MAKING ON A LOW AND INTERMEDIATE LEVEL WASTE REPOSITORY SAFETYASSESSMENTFile: E05_427.pdf

Guimarães, Maria Inês Calil CuryMONTE CARLO SIMULATION FOR DOSE DETERMINATION IN THYROID CANCER PATIENTSFile: E01_045.pdfANÁLISE CITOGENÉTICA DO 153Sm-EDTMP EM LINFÓCITOS PERIFÉRICOS DE PACIENTES COM CÂNCER ÓSSEOMETASTÁTICOFile: E07_245.pdf

Guimarães, Sandra da SilvaGAMA RADIOSSENSITIVIDADE EM FEIJOEIRO COMUM E CAUPIFile: E08_649.pdf



inac2002VI ENAN

Authors


Gupta, S. K.PRELIMINARY STUDIES CONCERNING SGD IN INDIAN COASTAL REGIONS USING 228RADIUM AND 226RADIUMFile: E03_906.pdf

Gurgel, Maria Sylvia de C.C. do AmaralLEITE DE CABRA IRRADIADO COM RAIOS GAMA: ANÁLISE SENSORIAL COMPARATIVA COM O LEITE DE CABRA PASTEURIZADOFile: E08_900.pdf

Guzella, Marcia Flavia RighiIMOBILIZAÇÃO DE RESINAS DE TROCA-IÔNICA EM BETUMEFile: E05_429.pdfANGRA 2 – QUALIFICAÇÃO DO PRODUTO DE REJEITO BETUMINIZADOFile: E05_686.pdf

Guzmán, FernandoTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Hacon, SandraDOSE DE INGESTÃO DEVIDO AO CONSUMO DE ALIMENTOS: DIFERENÇAS ENTRE ÁREAS DE RADIOATIVIDADE NATURALELEVADA E NORMALFile: E01_619.pdf

Hamada, Margarida MizuePURIFICAÇÃO POR REFINAMENTO ZONAL PARA PREPARAÇÃO DOS DETECTORES SEMICONDUTORES DE PbI2 E TlBrFile: E04_115.pdfESTUDO DAS CARACTERÍSTICAS ÓPTICAS E CINTILADORAS DO CRISTAL CsI ATIVADO COM BROMO CRESCIDO PELATÉCNICA DE BRIDGMANFile: E04_155.pdfESPECTRÔMETRO DE ENERGIA PORTÁTIL UTILIZANDO DETECTOR DE CsI(Tl) COM FOTODIODOFile: E04_172.pdfANÁLISE DO DANO DE RADIAÇÃO GAMA EM DETECTORES ORGÂNICOS CONTENDO PPOFile: E04_456.pdf

Haucz, Maria Judite AfonsoTRATAMENTO POR CIMENTAÇÃO DE LÍQUIDOS DE CINTILAÇÃOFile: E05_488.pdf

Hauy Junior, EduardoESTUDO DA INFLUÊNCIA DOS PARÂMETROS DE PREPARAÇÃO DA MAGNETITA NA EFICIÊNCIA DE ADSORÇÃO DE METAISNO TRATAMENTO DE EFLUENTESFile: E05_339.pdf

Hazin, Clovis AbrahãoUSO DE FOTOTRANSISTORES PARA MEDIDA DAS CARACTERÍSTICAS DOSIMÉTRICAS DE FEIXES DE RAIOS-X UTILIZADOSEM RADIOCIRURGIA ESTEREOTÁXICAFile: E01_578.pdfPHOTOTRANSISTOR: A DETECTOR FOR X-RAY BEAM DOSIMETRYFile: E04_424.pdf

Helene, O.A.M.THE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf



inac2002VI ENAN

Authors


Helou, Luiz CarlosDETERMINAÇÃO DE TEMPO DE RESIDÊNCIA MÉDIO -TRM - EM UM DIGESTOR ANAERÓBIO DA ESTAÇÃO DE TRATAMENTODE ESGOTOS DE BARUERI COM UTILIZAÇÃO DE TRAÇADOR RADIOATIVOFile: E06_138.pdf

Henríquez, Carlos A.DESIGN AND CONSTRUCTION OF THE FACILITY FOR NEUTRON DEPTH PROFILING IN RESEARCH REACTOR RECH-1File: E02_517.pdf

Herdade, Silvio B.SCATTERING FRACTION OF X-RAYS INCIDENT ON A PHANTOM FROM THE MEASURED ENERGY SPECTRAFile: E01_556.pdf

Herrerias, RosanaANÁLISE DA IMUNORREATIVIDADE DO ANTICORPO MONOCLONAL ANTI-CEA IOR-1 MARCADO COM 99mTcFile: E07_705.pdfSYNTHESIS AND QUALITY CONTROL OF 18F-FDG AT IPEN-CNEN/SPFile: E07_712.pdf

Herson, Marisa RomaCARACTERIZAÇÃO DE ALOENXERTOS SUBMETIDOS À RADIAÇÃO IONIZANTEFile: E07_179.pdf

Hiramoto, Roberto MitsuyoshiASPECTOS MORFOLÓGICOS DA Leishmania amazonensis SUBMETIDA À AÇÃO DA RADIAÇÃO IONIZANTEFile: E09_654.pdfTAQUIZOÍTOS DE Toxoplasma gondii IRRADIADOS COM 255 Gy INDUZEM DIMINUIÇÃO DE CISTOS E LESÕES CEREBRAIS,EM CAMUNDONGOS DESAFIADOS COM CISTOS DA CEPA ME-49File: E09_688.pdf

Hiromoto, GoroAPLICAÇÃO DO MODELO DE DOIS COMPONENTES PARA CÁLCULO DE ERRO, À ANÁLISE DE DADOS DE MONITORAÇÃOAMBIENTALFile: E03_318.pdfDESENVOLVIMENTO DE UMA METODOLOGIA PARA CARACTERIZAÇÃO ISOTÓPICA DE TAMBORES DE REJEITORADIOATIVO UTILIZANDO-SE TÉCNICAS DE SIMULAÇÃO MATEMÁTICAFile: E05_706.pdfGESTÃO DE FONTES RADIOATIVAS SELADAS DESCARTADASFile: E05_709.pdf

Honda, Neli K.ANÁLISE DE ESPÉCIES DE LIQUENS EPIFÍTICOS PARA USO NA BIOMONITORAÇÃO DE POLUENTES ATMOSFÉRICOSFile: E03_475.pdf

Hwang, Suy F.DESENVOLVIMENTO DE UM CARTÃO DOSIMÉTRICO PARA MAMOGRAFIAFile: E01_417.pdf

Iamashita, Célia OmineDETERMINAÇÃO DE ELEMENTOS TRAÇO EM MATERIAIS DE REFERÊNCIA DE SILÍCIO E FERRO-SILÍCIO PELO MÉTODOINSTRUMENTAL DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONSFile: E02_504.pdf



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Authors


Ignoto, Raquel de FátimaOBTENÇÃO DO GESSO AGRÍCOLA MARCADO NO 34S (Ca34SO4.2H2O), POR REAÇÃO QUÍMICA ENTRE O H2

34SO4 E O Ca(OH)2

File: E02_280.pdf

Isiki, Vera Lúcia KeikoINCORPORAÇÃO DE ÓLEO CONTAMINADO COM TRÍTIO EM CIMENTO, UTILIZANDO UM POLÍMERO ABSORVENTEFile: E05_360.pdfADIÇÃO DE MICROSSÍLICA EM CIMENTO PORTLAND, PARA IMOBILIZAÇÃO DE CARVÃO ATIVO PROVENIENTE DO REATORDE PESQUISA DO IPEN, IEA R-1mFile: E05_366.pdf

Islas, María Eugenia CortésUN MÉTODO RADIACTIVO PARA MEDIR EL FLUJO, POR UN TUBO, EN UNA FASE Y SU APLICACIÓN A MÁS FASESFile: E06_193.pdf

Isoldi, Ana Beatriz GodoyESTUDO DO EFEITO DA DOSE DE RADIOESTERILIZAÇÃO SOBRE AS PROPRIEDADES DO POLI(TEREFTALATO DE ETILENO)- PET RECICLADOFile: E11_438.pdf

Ito, ToshimichiRADIONUCLIDE SURFACE WATER TIME SERIES IN THE ATLANTIC OCEANFile: E03_394.pdf

Iwahara, AkiraINTERCOMPARAÇÃO DAS MEDIÇÕES DE ATIVIDADE DO 67Ga EM SERVIÇOS DE MEDICINA NUCLEAR BRASILEIROSFile: E07_113.pdf

Jalilian, Amir R.PRODUCTION OF SELENIUM-75 AND RADIOSYNTHESIS OF [75Se]-4-ETHOXYCARBONYL-5-METHYL-1,2,3-SELENADIAZOLEFile: E07_065.pdf

Jacomino, Vanusa Maria FelicianoINCORPORATING EXTERNALITIES IN THE ASSESSMENT OF DIFFERENT ENERGY OPTIONS FOR ELECTRICITY PRODUTIONFile: E03_003.pdfENVIRONMENTAL EXTERNALITIES OWED TO THE ELECTRICITY GENERATION: A COMPARISON BETWEEN THE NUCLEARAND THE GAS GENERATIONFile: E03_545.pdf

Jesus, Edgar Francisco Oliveira deEFEITO DA DOPAGEM COM LÍTIO NO SINAL INDICADOR DE DOSE (RADICAL CO2

-) EM DOSIMETRIA POR RPE DECARBOAPATITAS SINTÉTICAS DO TIPO BFile: E01_053.pdfTOTAL AND AVAILABLE METAL CONTENTS IN SEDIMENTS BY SYNCHROTRON RADIATION TOTAL REFLECTION X-RAYFLUORESCENCEFile: E02_343.pdfANÁLISE MULTIELEMENTAR DE ÁGUA MINERAL UTILIZANDO TXRF COM RADIAÇÃO SÍNCROTRONFile: E02_658.pdfSISTEMA COMPACTO DE INSPEÇÃO DE EQUIPAMENTOS E MATERIAIS UTILIZANDO FONTE DE RADIAÇÃO GAMA: UMESTUDO SIMULADOFile: E04_112.pdfQUANTIFICAÇÃO HISTOMORFOMÉTRICA 2D A PARTIR DE TOMOGRAFIA COMPUTADORIZADA 3DFile: E07_110.pdfPESQUISA DO ESPECTRO DE RAIOS-X NA AQUISIÇÃO E PROCESSAMENTO DE IMAGENS DIGITAIS PARA A DETECÇÃODE DESORDENS INTERNAS EM FRUTOS DA MANGUEIRA (Mangifera indica L.)File: E08_093.pdf



inac2002VI ENAN

Authors


Jesus, Selma Parente deACOMPANHAMENTO DO CRESCIMENTO DE RAÍZES DE FEIJÃO UTILIZANDO-SE A TÉCNICA NEUTRONGRÁFICAFile: E08_022.pdf

Jordão, ElizabetePROPOSAL OF METHODOLOGY TO SELECT BINDERS FOR HAZARDOUS WASTES STABILIZATION (PROPOSTA DEMETODOLOGIA PARA A SELEÇÃO DE MATRIZES PARA A ESTABILIZAÇÃO DE RESÍDUOS PERIGOSOS)File: E05_348.pdfMODELOS PARA ANÁLISE DE CONSEQÜÊNCIA DE ACIDENTES APLICADOS AOS PROCESSOS DE LICENCIAMENTO DEINSTALAÇÕES NUCLEARES, RADIATIVAS E INDUSTRIAIS CONVENCIONAISFile: E13_039.pdfMETODOLOGIA PARA AVALIAÇÃO DE RISCOS DE INSTALAÇÕES NUCLEARESFile: E13_075.pdf

Jorge, S.A.C.THE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Julião, LigiaCHARACTERIZATION OF MONAZITE DUST PARTICLESFile: E02_721.pdf

Kamonseki, MassaoTRANSPORTE DE NITRATO DE TÓRIO PARA FIRMAS EXTERNAS AO IPEN-CNEN/SPFile: E01_265.pdf

Kanashiro, Fabio Y.SCATTERING FRACTION OF X-RAYS INCIDENT ON A PHANTOM FROM THE MEASURED ENERGY SPECTRAFile: E01_556.pdf

Kelecom, AlphonseA PRELIMINARY STUDY ON THE BEHAVIOUR OF TRACE ELEMENTS IN SEDIMENT CORES FROM ILHA GRANDE (RIO DEJANEIRO) BY NEUTRON ACTIVATION ANALYSISFile: E03_464.pdf

Khoury, Helen JamilDESENVOLVIMENTO DE UMA SONDA DE NÊUTRONS PARA MEDIDA DE UMIDADE DE SOLO UTILIZANDO UM DETECTORDE 6LiI(Eu)File: E04_247.pdfEVALUATION OF POLYANILINE NANOFILM’S RESPONSE FOR 60 Co BEAMSFile: E01_423.pdf

Kira, Carmen SilviaESTUDO COMPARATIVO NA DETERMINAÇÃO DE ELEMENTOS ESSENCIAIS EM AMOSTRAS DE PRODUTOS LÁCTEOSPOR AANI E ICP-AESFile: E02_528.pdf

Kohli, A.K.INSTALL & OPERATE TYPE RADIATION PROCESSING PLANT FOR MARINE PRODUCTSFile: E12_444.pdf

Koskinas, Marina FallonePRIMARY STANDARDIZATION OF 153Sm RADIOACTIVE SOLUTIONFile: E04_483.pdf



inac2002VI ENAN

Authors


Kramer, RichardMAX – A MALE ADULT VOXEL MODEL FOR RADIATION PROTECTION DOSIMETRYFile: E01_744.pdfCALCULATION OF RED BONE MARROW EQUIVALENT DOSE TO THE MAX (MALE ADULT VOXEL) MODEL FOR EXTERNALEXPOSURES TO PHOTONSFile: E01_745.pdf

Krug, Francisco J.REMOÇÃO DE INTERFERENTES EM AMOSTRAS COM ALTOS TEORES DE SÓLIDOS DISSOLVIDOS PARA A DETERMINAÇÃODE ARSÊNIO E SELÊNIO POR TXRFFile: E02_641.pdf

Lacerda, Marco Aurélio de SousaFATORES DE RETRO-ESPALHAMENTO PARA FEIXES DE RAIOS-X DIAGNÓSTICO MÉDICOFile: E07_186.pdf

Lainetti, Paulo Ernesto de OliveiraDECOMPOSIÇÃO TÉRMICA DE RESÍDUOS ORGÂNICOS CONTENDO RADIONUCLÍDEOS POR MEIO DE OXIDAÇÃO EMSAIS FUNDIDOSFile: E05_779.pdf

Landini, LilianeESTÁGIO ATUAL DO PROJETO DE PREPARO DO GEL DE MOLIBDATO DE ZIRCÔNIO PARA USO NOS GERADORES DE99Mo/99mTcFile: E07_268.pdf

Laranjeira, Jane Maria GonçalvesEVALUATION OF POLYANILINE NANOFILM’S RESPONSE FOR 60 Co BEAMSFile: E01_423.pdf

Latini, Rose MaryMÉTODO NUCLEAR APLICADO EM SÍTIOS ARQUEOLÓGICOS NA BACIA AMAZÔNICAFile: E02_451.pdf

Lauria, Dejanira da CostaCONTROLE AMBIENTAL DO REPOSITÓRIO DE REJEITOS DE ABADIA DE GOIÁSFile: E01_585.pdfAVALIAÇÃO DA EXPOSIÇÃO INTERNA A K-40 DOS RESIDENTES DA CIDADE DO RIO DE JANEIROFile: E01_618.pdfDOSE DE INGESTÃO DEVIDO AO CONSUMO DE ALIMENTOS: DIFERENÇAS ENTRE ÁREAS DE RADIOATIVIDADE NATURALELEVADA E NORMALFile: E01_619.pdf

Lavras, Wilson de OliveiraPRIMARY STANDARDIZATION OF 153Sm RADIOACTIVE SOLUTIONFile: E04_483.pdf

Lazaro, GerardoPRODUCCIÓN DE CENTROS DE COLOR EN EL TOPACIO NATURAL IRRADIADO CON NEUTRONES EN EL NÚCLEO DELREACTOR PERUANO RP-10File: E06_397.pdf

Leite, Carlos V. BarrosCHARACTERIZATION OF MONAZITE DUST PARTICLESFile: E02_721.pdf



inac2002VI ENAN

Authors


Leite, Jaques C.DETERMINAÇÃO E ANÁLISE QUANTITATIVA DO PERFIL DA INVASÃO DE SÓLIDOS USANDO TC COM RAIOS X EM ARENITOSCONSOLIDADOSFile: E04_177.pdfESTUDO DOS DANOS CAUSADOS POR FLUIDO DE PERFURAÇÃO EM AMOSTRAS DE ARENITO UTILIZANDO AFLUORESCÊNCIA DE RAIOS X DISPERSIVA EM ENERGIA (EDXRF)File: E11_176.pdf

Leite, Maria FátimaPBMC AND MDAMB-231 CELLULAR VIABILITY AFTER TELECOBALT IRRADIATIONFile: E07_763.pdf

Leite, Simone C. A. L.DETERMINAÇÃO DE Ca, Cr, Cu, Fe, K, Mg, Na E Zn EM PLANTAS MEDICINAIS BRASILEIRAS POR ATIVAÇÃO NEUTRÔNICAE ABSORÇÃO ATÔMICAFile: E02_206.pdf

Lemos, Francisco Luiz deFUZZY MULTI-OBJECTIVE DECISION MAKING ON A LOW AND INTERMEDIATE LEVEL WASTE REPOSITORY SAFETYASSESSMENTFile: E05_427.pdf

Lepki, VladimirCARACTERIZAÇÃO DE TUBO DE TITÂNIO PARA CONFECÇÃO DE SEMENTES DE IODO-125 UTILIZADAS EMBRAQUITERAPIAFile: E11_511.pdf

Likhachev, V.P.THE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Lima, Ana Lúcia Vilela PinheiroESTÁGIO ATUAL DO PROJETO DE PREPARO DO GEL DE MOLIBDATO DE ZIRCÔNIO PARA USO NOS GERADORES DE99Mo/99mTcFile: E07_268.pdf

Lima, Carla FlaviaSINOVECTOMIA RADIOISOTÓPICA ATRAVÉS DO MACROAGREGADO DE HIDRÓXIDO FÉRRICO PARA TRATAMENTO DAARTRITE CRÔNICAFile: E07_903.pdf

Lima, ElaineASSESSMENT OF THE EFFECT OF MENTHA CRISPA L. (HORTELÃ) EXTRACT ON THE LABELING OF RED BLOOD CELLSAND PLASMA PROTEINS WITH TECHNETIUM-99MFile: E07_041.pdfESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOSFile: E07_241.pdf

Lima, Fernando R. AndradeMAX – A MALE ADULT VOXEL MODEL FOR RADIATION PROTECTION DOSIMETRYFile: E01_744.pdfCALCULATION OF RED BONE MARROW EQUIVALENT DOSE TO THE MAX (MALE ADULT VOXEL) MODEL FOR EXTERNALEXPOSURES TO PHOTONSFile: E01_745.pdf



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Authors


Lima, Glaydes M.T.ASSESSMENT OF THE EFFECT OF PHYTIC ACID ON THE LABELING OF BLOOD CELLS AND PLASMA PROTEINS WITHTECHNETIUM-99mFile: E09_227.pdf

Lima, InayáQUANTIFICAÇÃO HISTOMORFOMÉTRICA 2D A PARTIR DE TOMOGRAFIA COMPUTADORIZADA 3DFile: E07_110.pdf

Lima, Ivânia Sores deESTUDO DE MISCIBILIDADE DA MISTURA FÍSICA PMMA/PS: COMPATIBILIZAÇÃO INDUZIDA POR RADIAÇÃO GAMAFile: E11_669.pdf

Lima, José FernandesESTUDO DA INFLUÊNCIA DA RAZÃO OH/F NA RESPOSTA TERMOLUMINESCENTE DO TOPÁZIOFile: E11_286.pdf

Lima, José Romualdo de SousaEVAPORAÇÃO DA ÁGUA DE UM SOLO SEM VEGETAÇÃO NO BREJO PARAIBANOFile: E08_391.pdf

Lima, Marco Antonio FrotaCÁLCULO DOS FATORES DE CONVERSÃO DE KERMA NO AR PARA EQUIVALENTE DE DOSE AMBIENTAL PARA FEIXEMONOENERGÉTICO DE FÓTONS ENTRE 0,01 MeV e 50 MeVFile: E01_134.pdf

Lima, Maria Elena dePURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVEPROBEFile: E07_652.pdf

Lima, Nelson Batista deANÁLISE QUANTITATIVA DE SOLO POR ESPECTROMETRIA DE FLUORESCÊNCIA DE RAIOS X (WDXRFS)File: E02_259.pdfAPLICAÇÃO DA FLUORESCÊNCIA DE RAIOS X (WDXRFS) PARA A DETERMINAÇÃO DA ESPESSURA DE FILMES FINOSFile: E02_289.pdf

Lima, Ricardo de AndradeESTUDO DE TÉCNICAS DE ANÁLISE DE RESPOSTA DE DOSÍMETROS TERMOLUMINESCENTESFile: E01_300.pdf

Lima, Ruy B. deNEUTRON FLUX DISTRIBUTION IN AN Am-Be NEUTRON IRRADIATORFile: E04_288.pdf

Lima Filho, Guilherme LaurentinoESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOSFile: E07_241.pdfASSESSMENT OF THE EFFECT OF PHYTIC ACID ON THE LABELING OF BLOOD CELLS AND PLASMA PROTEINS WITHTECHNETIUM-99mFile: E09_227.pdf

Lira, Carlos Alberto Brayer de OliveiraEVAPORAÇÃO DA ÁGUA DE UM SOLO SEM VEGETAÇÃO NO BREJO PARAIBANOFile: E08_391.pdf



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Authors


Lopérgolo, Lilian CristineCARACTERIZAÇÃO DA POLIAMIDA-6 RECICLADA IRRADIADA POR FEIXE DE ELÉTRONSFile: E11_398.pdfCARACTERIZAÇÃO DO HIDROGEL DE POLI(N-VINIL-2-PIRROLIDONA) PARA USO VETERINÁRIOFile: E11_548.pdf

Lopes, FabioFLUORESCÊNCIA DE RAIOS X POR REFLEXÃO TOTAL APLICADA À ANÁLISE DE ELEMENTOS QUÍMICOS EM CHÁ DEERVA-MATE (Ilex paraguariensis)File: E02_208.pdfDETERMINAÇÃO DA RAZÃO ISOTÓPICA δ13C (‰) DE CERVEJAS CLARA TIPO PILSEN NACIONALFile: E08_207.pdf

Lopes, M.M.S.SPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdf

Lopes, Ricardo TadeuDEPENDÊNCIA ANGULAR DE DOSÍMETROS TERMOLUMINESCENTES UTILIZADOS EM TOMOGRAFIA COMPUTADORIZADAFile: E01_111.pdfTOTAL AND AVAILABLE METAL CONTENTS IN SEDIMENTS BY SYNCHROTRON RADIATION TOTAL REFLECTION X-RAYFLUORESCENCEFile: E02_343.pdfANÁLISE MULTIELEMENTAR DE ÁGUA MINERAL UTILIZANDO TXRF COM RADIAÇÃO SÍNCROTRONFile: E02_658.pdfANÁLISE ELEMENTAR DE AMOSTRAS DENTÁRIAS HUMANAS USANDO SRXRFFile: E02_661.pdfSISTEMA COMPACTO DE INSPEÇÃO DE EQUIPAMENTOS E MATERIAIS UTILIZANDO FONTE DE RADIAÇÃO GAMA: UMESTUDO SIMULADOFile: E04_112.pdfAPLICAÇÕES DA TOMOGRAFIA COMPUTADORIZADA DE RAIOS-X NA RECUPERAÇÃO DE PETRÓLEOFile: E04_130.pdfCONSTRUÇÃO DE FANTOMAS ATRAVÉS DE LITOGRAFIA PARA ANÁLISE DE SISTEMAS MICRO-RADIOGRÁFICOSFile: E04_162.pdfDETERMINAÇÃO E ANÁLISE QUANTITATIVA DO PERFIL DA INVASÃO DE SÓLIDOS USANDO TC COM RAIOS X EM ARENITOSCONSOLIDADOSFile: E04_177.pdfA POSITION SENSITIVE GAS DETECTOR FOR TOMOGRAPHY WITH THERMAL NEUTRONSFile: E04_301.pdfTOMOGRAFIAS COM DETECTOR DE RAIOS-X SENSÍVEL À POSIÇÃOFile: E04_778.pdfCOMPUTED TOMOGRAPHY TO DETERMINE FATIGUE CRACKING GROWTH PARAMETERS IN ASPHALTIC MIXTURESFile: E06_210.pdfMEDIDAS IN VIVO EM PACIENTES SUBMETIDOS À RADIOTERAPIA PARA TRATAMENTO DE CÂNCER DE CABEÇA EPESCOÇOFile: E07_023.pdfQUANTIFICAÇÃO HISTOMORFOMÉTRICA 2D A PARTIR DE TOMOGRAFIA COMPUTADORIZADA 3DFile: E07_110.pdfINTERCOMPARAÇÃO DAS MEDIÇÕES DE ATIVIDADE DO 67Ga EM SERVIÇOS DE MEDICINA NUCLEAR BRASILEIROSFile: E07_113.pdfA HYBRID TECHNIQUE TO EVALUATE THE LINE SPREAD FUNCTIONFile: E10_142.pdfESTUDO DOS DANOS CAUSADOS POR FLUIDO DE P ERFURAÇÃO EM AMOSTRAS DE ARENITO UTILIZANDO AFLUORESCÊNCIA DE RAIOS X DISPERSIVA EM ENERGIA (EDXRF)File: E11_176.pdf



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Authors


Lopes, Valdir MacielRESPOSTA DOS EQUIPAMENTOS E ATUAÇÃO DA EQUIPE DE RADIOPROTEÇÃO NA SOLUÇÃO DO INCIDENTE NO REATORIEA-R1, QUANDO DO VAZAMENTO DE UM ELEMENTO COMBUSTÍVEL.File: E01_638.pdf

Lorenzetti, Solange GubbeliniHIDROGEL DE POLI(1-VINIL-2-PIRROLIDONA) (PVP) COMO MATRIZ POLIMÉRICA PARA SISTEMA DE LIBERAÇÃO DEFÁRMACOFile: E07_434.pdfCARACTERIZAÇÃO DO HIDROGEL DE POLI(N-VINIL-2-PIRROLIDONA) PARA USO VETERINÁRIOFile: E11_548.pdf

Lourenço, CiléaSPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdf

Lourenço,Vera L.CARACTERIZAÇÃO DA POLIAMIDA-6 RECICLADA IRRADIADA POR FEIXE DE ELÉTRONSFile: E11_398.pdf

Lucena, Eder A.CALIBRAÇÃO DA UNIDADE DE CONTADOR DE CORPO INTEIRO DO IRD PARA MEDIDAS IN VIVO DE PB-210 EM TECIDOÓSSEO E PULMONARFile: E01_058.pdf

Lucinio, Elena Albeira GuiradoCARACTERIZAÇÃO DOS IMPACTOS AMBIENTAIS DEVIDO A OPERAÇÃO DE VÁRIAS INSTALAÇÕES NUCLEARES EM UMMESMO SÍTIOFile: E03_054.pdf

Ludwig, Jaime L.CALIBRAÇÃO DE MEDIDORES DE KV COM A GRANDEZA POTENCIAL DE PICO PRÁTICO (IEC 1676)File: E04_695.pdf

Lugão, Ademar BenévoloHIDROGEL DE POLI(1-VINIL-2-PIRROLIDONA) (PVP) COMO MATRIZ POLIMÉRICA PARA SISTEMA DE LIBERAÇÃO DEFÁRMACOFile: E07_434.pdfRADIATION VULCANIZATION OF NATURAL RUBBER LATEX SENSITIZED WITH COMMERCIAL GASESFile: E11_530.pdfCARACTERIZAÇÃO DO HIDROGEL DE POLI(N-VINIL-2-PIRROLIDONA) PARA USO VETERINÁRIOFile: E11_548.pdfESTUDO DO PROCESSO DE CO-POLIMERIZAÇÃO DE ACRILATOS E METACRILATOS INDUZIDO POR IRRADIAÇÃO GAMAFile: E11_662.pdfOXIDATIVE BEHAVIOR OF IRRADIATED POLYPROPYLENE, PREDICTED AS TEMPERATURE-OXIDATIVE INDUCTION TIME(TOIT)File: E11_748.pdf

Luna, Taciana FigueiredoRADIOIMUNOENSAIO PARA DETERMINAÇÃO DO HORMÔNIO TIREOIDEANO NA PROLE DE RATAS HIPOTIREOIDEAS EHIPERTIREOIDEASFile: E09_312.pdf



inac2002VI ENAN

Authors


Macacini, José FlávioFATORES DE TRANSLOCAÇÃO DE 60CO, 90SR E 137CS EM BATATEIRA E MILHEIRO.File: E01_580.pdfDETERMINAÇÃO DE ISÓTOPOS EMISSORES ALFA DE AMERÍCIO EM AMOSTRAS DE URINA E FEZESFile: E02_547.pdfDETERMINAÇÃO DOS PARÂMETROS NECESSÁRISOS PARA AVALIAÇÃO DO IMPACTO AMBIENTAL DECORRENTE DAUTILIZAÇÃO DO FOSFOGESSOFile: E03_574.pdf

Macedo, Pedro Ivo Moreira Tavares deCONSTRUÇÃO DE FANTOMAS ATRAVÉS DE LITOGRAFIA PARA ANÁLISE DE SISTEMAS MICRO-RADIOGRÁFICOSFile: E04_162.pdf

Machado, Ana C. B.SCATTERING FRACTION OF X-RAYS INCIDENT ON A PHANTOM FROM THE MEASURED ENERGY SPECTRAFile: E01_556.pdf

Machado, Luci Diva BrocardoCARACTERIZAÇÃO DA POLIAMIDA-6 RECICLADA IRRADIADA POR FEIXE DE ELÉTRONSFile: E11_398.pdfINFLUÊNCIA DA TAXA DE DOSE E DA VELOCIDADE DE PROCESSO NA CURA DE REVESTIMENTOS POR RADIAÇÃO UV/EBFile: E11_532.pdfCARACTERIZAÇÃO MECÂNICA DE HIDROGÉIS DE PVAl PARA SEREM UTILIZADOS COMO CARTILAGEM ARTICULARARTIFICIAL RETICULADOS POR RADIAÇÃOFile: E11_543.pdf

Machado, Mariana de CarvalhoRUMEN MICROBIAL GROWTH ESTIMATION USING IN VITRO RADIOPHOSPHOROUS INCORPORATION TECHNIQUEFile: E08_323.pdfINCORPORAÇÃO IN VITRO DO RADIOFÓSFORO PELOS MICRORGANISMOS RUMINAIS EM DIFERENTES PROPORÇÕESDO INÓCULOFile: E08_324.pdf

Machado Neto, LuizSPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdf

Maciel Netto, AndréEVAPORAÇÃO DA ÁGUA DE UM SOLO SEM VEGETAÇÃO NO BREJO PARAIBANOFile: E08_391.pdf

Madi Filho, TuficESTUDO E MONTAGEM DE SISTEMA DE MEDIDAS USANDO RETROESPALHAMENTO DE RADIAÇÃO GAMAFile: E04_181.pdfNEUTRON FLUX DISTRIBUTION IN AN Am-Be NEUTRON IRRADIATORFile: E04_288.pdf

Máduar, Marcelo F.URANYL NITRATE COMPLEX WITH THE LIGAND 1,3-DITHIANE-1-OXIDE (DTSO)File: E11_598.pdf



inac2002VI ENAN

Authors


Magalhães, Adriana B. V. B.IDENTIFICATION OF ORGANIZATION VALUES ACCORDING TO THE PERCEPTION OF THE EMPLOYEES OF THE ENERGETICAND NUCLEAR RESEARCH INSTITUTE- IPENFile: E14_487.pdf

Magalhães, Maisa HaidamusCONTROLE AMBIENTAL DO REPOSITÓRIO DE REJEITOS DE ABADIA DE GOIÁSFile: E01_585.pdf

Magalhães, Wellington F. deANÁLISE DO ESPECTRO DE VIDA MÉDIA DE ANIQUILAÇÃO DO PÓSITRON ATRAVÉS DE ESTUDOS DE PROBLEMASINVERSOSFile: E11_205.pdf

Maia, Ana FigueiredoCALIBRAÇÃO DE UMA CÂMARA TIPO LÁPIS EM FEIXES PADRÕES DE RAIOS-XFile: E01_522.pdf

Maia, Elene Cristina PereiraINSTRUMENTAL NEUTRON ACTIVATION ANALYSIS AS AN ANALYTICAL TOOL ON SUPPORTING THE ESTABLISHMENT OFGUIDELINES AND DATA BASIS FOR WORKER’S HEALTH AWARENESS PROGRAMFile: E03_083.pdf

Maihara, Vera AkikoAPLICAÇÃO DAS TÉCNICAS DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONS E FLUORESCÊNCIA DE RAIOS X EM AMOSTRADE FÍGADO BOVINOFile: E02_527.pdfESTUDO COMPARATIVO NA DETERMINAÇÃO DE ELEMENTOS ESSENCIAIS EM AMOSTRAS DE PRODUTOS LÁCTEOSPOR AANI E ICP-AESFile: E02_528.pdf

Malagrino, WaldirBIOACUMULAÇÃO E ELIMINAÇÃO DE MERCÚRIO POR PEIXE–REI (Xenomelanires brasiliensis) -TÉCNICA DOSRADIOTRAÇADORESFile: E03_538.pdf

Malheiros, Emiliane AdvínculaCARACTERIZAÇÃO E CALIBRAÇÃO DE DOSÍMETROS DE EXTREMIDADE PARA FEIXES DE RADIAÇÃO BETA EM TERMOSDO EQUIVALENTE DE DOSE PESSOALFile: E01_085.pdf

Maliska, C.M.SPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdf

Mannaerts, KoenRADIOACTIVE WASTE CHARACTERIZATION IN BELGIUMFile: E05_244.pdf

Manosso, Helena C.RETENÇÃO DO CRÔMIO(III) EM TROCADOR INORGÂNICO DE FOSFATO DE ZIRCÔNIO CRISTALINO MODIFICADOFile: E03_370 .pdf



inac2002VI ENAN

Authors


Manso, Maria Vitória G.NUCLEAR METHODOLOGY FOR STUDYING BIOLOGICAL FUNCTIONS OF MAMMALIANS SUBMITTED TO URANIUMINGESTIONFile: E02_418.pdf

Mansuelle, PascalPURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVEPROBEFile: E07_652.pdf

Mantovano, José LuizSIMULAÇÃO DA SORÇÃO DE AMERÍCIO NO SISTEMA EPU-DEHPA USANDO Fe(III)File: E03_603.pdf

Manzini, AlbertoESTUDIO DE LA RETENCIÓN DE MOLIBDENO EN ALÚMINAFile: E11_676.pdf

Marajofsky, AdolfoVALIDATION PROCEDURE FOR THE FABRICATION SEQUENCE OF SELF-POWERED NEUTRON DETECTORS FOR NPPDEVELOPED BY CNEAFile: E04_719.pdf

Marczewski, Barbara SzotCARACTERIZAÇÃO DA RESPOSTA RPE DOS EXCIPIENTES DOS MEDICAMENTOS PARA APLICAÇÃO EM DOSIMETRIA DEACIDENTEFile: E01_498.pdf

Maretti Júnior, FaustoDESENVOLVIMENTO E PRODUÇÃO DE FONTES DE COBALTO-60 PARA APLICAÇÃO EM SIDERÚRGICASFile: E06_437.pdfO AUMENTO DA POTÊNCIA DO REATOR TRIGA IPR-1:NOVAS PERSPECTIVAS DE ATIVIDADESFile: E12_564.pdf

Maria, Isabella Clerici DeVARIABILIDADE ESPACIAL DO “FALLOUT” DE 137Cs ENTRE ÁREAS DE REFERÊNCIA. I. MUNICÍPIOS DE PIRACICABA,NOVA ODESSA E CAMPINASFile: E08_322.pdf

Marialva Neto, A. A.SYNTHESIS AND QUALITY CONTROL OF 18F-FDG AT IPEN-CNEN/SPFile: E07_712.pdf

Marín-Huachaca, Nélida SimonaTESTE DO COMETA NA DETECÇÃO DE ALHO IRRADIADOFile: E08_334.pdf

Marques, Leila SoaresESTUDO DO DESEQUILÍBRIO RADIOATIVO EM ROCHAS VULCÂNICAS DO MONTE CAMEROON (REPÚBLICA DOSCAMARÕES - ÁFRICA)File: E03_519.pdf



inac2002VI ENAN

Authors


Martinelli, Luiz AntonioDETERMINAÇÃO DA RAZÃO ISOTÓPICA δ13C (‰) DE CERVEJAS CLARA TIPO PILSEN NACIONALFile: E08_207.pdf

Martinez, Luís G.ANÁLISE QUANTITATIVA DE COMPÓSITO DE ALUMÍNIO REFORÇADO COM CARBETO DE SILÍCIO PELA TÉCNICA DEFLUORESCÊNCIA DE RAIOS X E RADIAÇÃO INFRAVERMELHAFile: E02_762.pdf

Martin-Moutot, NicolePURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVEPROBEFile: E07_652.pdf

Martins, Elâine Arantes JardimDESENVOLVIMENTO DE METODOLOGIA PARA AVALIAÇÃO DE IMPUREZAS EM U3O8 POR ICP-OESFile: E02_081.pdf

Martins, Elisabeth FernandesSPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdfDACRIOCINTILOGRAFIA NUCLEAR: AVALIAÇÃO DA DRENAGEM LACRIMAL EM PACIENTES ONCOLÓGICOS PÓSCIRÚRGICOS DE TUMORES DE FACEFile: E07_221.pdf

Martins, Flaviano dos SantosINFLUÊNCIA DOS RADICAIS LIVRES GERADOS PELA IRRADIAÇÃO GAMA NOS NÍVEIS DE TREALOSE EM CÉLULAS DALEVEDURA Saccharomyces boulardiiFile: E09_655.pdf

Martins, M. N.THE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Martins, Marcelo MarquesEVOLUÇÃO DA MONITORAÇÃO AMBIENTAL COM TLD NO IRDFile: E01_534.pdfMONITORAÇÃO INDIVIDUAL DE EXTREMIDADES: 30 ANOS DE EXPERIÊNCIAFile: E01_565.pdfMONITORAÇÃO INDIVIDUAL DE NÊUTRONS: 18 ANOS DE EXPERIÊNCIAFile: E01_566.pdf

Marumo, Júlio TakehiroINCORPORAÇÃO DE ÓLEO CONTAMINADO COM TRÍTIO EM CIMENTO, UTILIZANDO UM POLÍMERO ABSORVENTEFile: E05_360.pdfADIÇÃO DE MICROSSÍLICA EM CIMENTO PORTLAND, PARA IMOBILIZAÇÃO DE CARVÃO ATIVO PROVENIENTE DO REATORDE PESQUISA DO IPEN, IEA R-1mFile: E05_366.pdf

Massarani, GiulioNOVO PROCESSO PARA TRATAMENTO DE EFLUENTES RADIOATIVOSFile: E03_615.pdf



inac2002VI ENAN

Authors


Massi, Maria Lúcia GiliIDENTIFICATION OF ORGANIZATION VALUES ACCORDING TO THE PERCEPTION OF THE EMPLOYEES OF THE ENERGETICAND NUCLEAR RESEARCH INSTITUTE- IPENFile: E14_487.pdf

Mastro, Nélida Lucia DelESTABILIDADE DE COMPOSTOS FENÓLICOS DA PRÓPOLIS PROCESSADA POR RADIAÇÃO IONIZANTEFile: E08_140.pdfEFEITO DA RADIAÇÃO IONIZANTE DE 60 Co SOBRE PROPRIEDADES REOLÓGICAS DA GOMA GUAR ECARBOXIMETILCELULOSE PARA USO NA INDÚSTRIA ALIMENTÍCIAFile: E08_145.pdfPOTENCIAL RADIOPROTETOR DO ÁCIDO ASCÓRBICO SOBRE A CARRAGENANA UTILIZADA COMO ADITIVO ALIMENTÍCIOFile: E08_293.pdf

Mathor, Monica BeatrizCARACTERIZAÇÃO DE ALOENXERTOS SUBMETIDOS À RADIAÇÃO IONIZANTEFile: E07_179.pdf

Matos, Gilberto Cardoso deALGUNS ASPECTOS LEGAIS RELACIONADOS À IMPLANTAÇÃO NO BRASIL DAS RECOMENDAÇÕES DA AGÊNCIAINTERNACIONAL DE ENERGIA ATÔMICA RELATIVAS A PROTEÇÃO RADIOLÓGICAFile: E13_718.pdf

Matsuda, Andréa HarumiESTABILIDADE DE COMPOSTOS FENÓLICOS DA PRÓPOLIS PROCESSADA POR RADIAÇÃO IONIZANTEFile: E08_140.pdf

Matsuda, HyltonSISTEMA PARA AVALIAÇÃO, EM TEMPO REAL, DA HOMOGENEIDADE DO FEIXE EXTERNO DO CÍCLOTRON CYCLONE 30DO IPEN/CNEN-SPFile: E07_704.pdf

Mattar Neto, MiguelCARACTERIZAÇÃO DE ESPUMA POLIMÉRICA PARA USO EM EMBALAGENS PARA TRANSPORTE DE REJEITOSRADIOATIVOSFile: E05_392.pdfTÉCNICAS DE MEDIÇÃO DE RUÍDO ELETROQUÍMICO E POTENCIAL DE CORRENTE CONTÍNUA REVERSA APLICADAS AENSAIOS DE CORROSÃO SOB TENSÃOFile: E11_908.pdf

Mattos, Deise M.M.ESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOSFile: E07_241.pdf

Mattos, Maria Fernanda S. S.VANTAGENS DA ETAPA DE SEGREGAÇÃO NO GERENCIAMENTO DOS REJEITOS RADIOATIVOSFile: E05_453.pdf



inac2002VI ENAN

Authors


Mauricio, Claudia Lucia de PinhoEVOLUÇÃO DA MONITORAÇÃO AMBIENTAL COM TLD NO IRDFile: E01_534.pdfMONITORAÇÃO INDIVIDUAL DE EXTREMIDADES: 30 ANOS DE EXPERIÊNCIAFile: E01_565.pdfMONITORAÇÃO INDIVIDUAL DE NÊUTRONS: 18 ANOS DE EXPERIÊNCIAFile: E01_566.pdfPROJETO DE UM MONITOR INDIVIDUAL PARA AVALIAÇÃO DA DOSE EM TERMOS DE Hp (0,07) NAS MÃOSFile: E01_569.pdf

Mauro, Eduardo DiESTUDO DE FITOPATOLOGIAS ATRAVÉS DA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO EM ENERGIAFile: E08_537.pdf

Mautone, Caetano A.ESTUDO DA RADIODEGRADAÇÃO DOS COMPOSTOS ORGÂNICOS ODORÍFICOS GEOSMINA E METILISOBORNIOLPRESENTES EM ÁGUA DO SISTEMA GUARAPIRANGAFile: E03_760.pdf

Maximiano, Antonio Cesar AmaruIDENTIFICATION OF ORGANIZATION VALUES ACCORDING TO THE PERCEPTION OF THE EMPLOYEES OF THE ENERGETICAND NUCLEAR RESEARCH INSTITUTE- IPENFile: E14_487.pdf

Mazza, Marcelo G. G.ESTUDO EXPERIMENTAL DO TEMPO DE RESIDÊNCIA DE PARTÍCULAS EM SECADOR ‘SPRAY’File: E06_229.pdf

Mazzilli, Barbara PaciDISTRIBUIÇÃO VERTICAL DE ELEMENTOS MENORES E TRAÇOS POR ANÁLISE POR ATIVAÇÃO NEUTRÔNICAINSTRUMENTAL NOS SEDIMENTOS DO ESTUÁRIO DE SANTOS E SÃO VICENTE, SÃO PAULO, BRASILFile: E03_294.pdfAPLICAÇÃO DE 222Rn COMO TRAÇADOR DA DESCARGA DE ÁGUAS SUBTERRÂNEAS NA REGIÃO COSTEIRA DE UBATUBA,SÃO PAULOFile: E03_624.pdf

Medeiros, Ilca Marli Moitinho AmaralSPIN OF EXCITED LEVELS IN 149PmFile: E10_372.pdf

Medeiros, José Agostinho G. deSPIN OF EXCITED LEVELS IN 149PmFile: E10_372.pdfESTUDO DA ESTRUTURA NUCLEAR DO 72GeFile: E10_636.pdf

Medeiros, Regina BitelliVANTAGENS DA ETAPA DE SEGREGAÇÃO NO GERENCIAMENTO DOS REJEITOS RADIOATIVOSFile: E05_453.pdf



inac2002VI ENAN

Authors


Meira, Nilton FerreiraEVOLUÇÃO DA MONITORAÇÃO AMBIENTAL COM TLD NO IRDFile: E01_534.pdfMONITORAÇÃO INDIVIDUAL DE EXTREMIDADES: 30 ANOS DE EXPERIÊNCIAFile: E01_565.pdfMONITORAÇÃO INDIVIDUAL DE NÊUTRONS: 18 ANOS DE EXPERIÊNCIAFile: E01_566.pdfPROJETO DE UM MONITOR INDIVIDUAL PARA AVALIAÇÃO DA DOSE EM TERMOS DE Hp (0,07) NAS MÃOSFile: E01_569.pdf

Mello, Rossana Corbo R. deMEDIDA DA CAPTAÇÃO DE IODO PELA TIREÓIDE: ANÁLISE COMPARATIVA ENTRE SISTEMA GAMA-CÂMARA COMCOLIMADOR “PINHOLE” E SISTEMA 13S002File: E04_040.pdf

Melo, Maria Norma dePCR ASSOCIADO A HIBRIDIZAÇÃO COM SONDAS RADIOATIVAS DE DNA PARA A IDENTIFICAÇÃO DE INFECÇÃOSUBCLINICA CAUSADA POR LEISHMANIA CHAGASIFile: E07_749.pdf

Melo, Maurício Antonio C. deESTUDO DE FITOPATOLOGIAS ATRAVÉS DA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO EM ENERGIAFile: E08_537.pdf

Melo Jr., Luis A. S. deAPLICAÇÃO DA TERMOLUMINESCÊNCIA FOTOESTIMULADA NA ÁREA OFTALMOLÓGICA USANDO-SE CaSO4:DyFile: E01_452.pdf

Mendes, Bruno MeloAVALIAÇÃO DOSIMÉTRICA EM METÁSTASES APLICADA A RADIOTERAPIA SISTÊMICAFile: E07_042.pdf

Mendes, Júlio CésarOCORRÊNCIA DE MINERAIS RADIOATIVOS EM ROCHAS GRANÍTICAS ORNAMENTAISFile: E11_175.pdf

Mendes, Vivian ATRITIUM CONCENTRATION ANALYSIS IN ENVIRONMENTAL WATER SAMPLES OF CENTRO NUCLEAR ARAMARFile: E03_026.pdf

Menegário, Amauri AntonioPRÉ-CONCENTRAÇÃO EM SISTEMA DE FLUXO PARA DETERMINAÇÃO MULTIELEMENTAR EM AMOSTRAS DE ÁGUASFLUVIAIS POR FLUORESCÊNCIA DE RAIOS X COM REFLEXÃO TOTALFile: E02_639.pdfREMOÇÃO DE INTERFERENTES EM AMOSTRAS COM ALTOS TEORES DE SÓLIDOS DISSOLVIDOS PARA A DETERMINAÇÃODE ARSÊNIO E SELÊNIO POR TXRFFile: E02_641.pdf

Menezes, Cláudio José MesquitaDESENVOLVIMENTO DE UM CARTÃO DOSIMÉTRICO PARA MAMOGRAFIAFile: E01_417.pdf



inac2002VI ENAN

Authors


Menezes, Maria Ângela de Barros CorreiaINAA AS TOOL FOR ENVIRONMENT BIOMONITORINGFile: E02_171.pdfINSTRUMENTAL NEUTRON ACTIVATION ANALYSIS AS AN ANALYTICAL TOOL ON SUPPORTING THE ESTABLISHMENT OFGUIDELINES AND DATA BASIS FOR WORKER’S HEALTH AWARENESS PROGRAMFile: E03_083.pdfAVALIAÇÃO DA CONTAMINAÇÃO POR METAIS ASSOCIADA AO DESPEJO DE CHORUME NO RIO CURURUPE-ILHÉUS-BAUTILIZANDO K0-INAA E ICP-MSFile: E03_146.pdf

Mengatti, J.SYNTHESIS AND QUALITY CONTROL OF 18F-FDG AT IPEN-CNEN/SPFile: E07_712.pdf

Mesa, JoelTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Mesquita, Andrea CercanCARACTERIZAÇÃO DO POLI(ACETATO DE VINILA) OBTIDO POR RADIAÇÃO GAMAFile: E11_399.pdf

Mesquita, Carlos Henrique deBIOACUMULAÇÃO E ELIMINAÇÃO DE MERCÚRIO POR PEIXE–REI (Xenomelanires brasiliensis) -TÉCNICA DOSRADIOTRAÇADORESFile: E03_538.pdfANÁLISE DO DANO DE RADIAÇÃO GAMA EM DETECTORES ORGÂNICOS CONTENDO PPOFile: E04_456.pdf

Mestnik Filho, JoséVIABILITY STUDY FOR THE INSTALLATION OF A SANS BEAM-LINE AT IPEN/CNEN-SPFile: E04_694.pdf

Mezrahi, ArnaldoALGUNS ASPECTOS LEGAIS RELACIONADOS À IMPLANTAÇÃO NO BRASIL DAS RECOMENDAÇÕES DA AGÊNCIAINTERNACIONAL DE ENERGIA ATÔMICA RELATIVAS A PROTEÇÃO RADIOLÓGICAFile: E13_718.pdfCERTIFICAÇÃO DO ATENDIMENTO AOS REQUISITOS DE SEGURANÇA E RADIOPROTEÇÃO PELAS INSTALAÇÕESNUCLEARES E RADIATIVAS DA CNENFile: E13_738.pdf

Miguel, Ronaldo AraújoINAA AS TOOL FOR ENVIRONMENT BIOMONITORINGFile: E02_171.pdf

Miller, MarceloVALIDATION PROCEDURE FOR THE FABRICATION SEQUENCE OF SELF-POWERED NEUTRON DETECTORS FOR NPPDEVELOPED BY CNEAFile: E04_719.pdf



inac2002VI ENAN

Authors


Miraglia, JoséESTUDO DO PROCESSO DE CO-POLIMERIZAÇÃO DE ACRILATOS E METACRILATOS INDUZIDO POR IRRADIAÇÃO GAMAFile: E11_662.pdf

Miranda, Enrique Francisco PrietoDOSIMETRÍA DE ALTAS DOSIS Y CONTROL DE LA CALIDAD DEL PROCESO DE IRRADIACIÓN EN EL CEADENFile: E01_765.pdf

Miranda, Jurema Aparecida deCONTROLE DE QUALIDADE DE UM SISTEMA DE REFERÊNCIA PARA A CALIBRAÇÃO DE INSTRUMENTOS EMRADIODIAGNÓSTICOFile: E01_767.pdf

Miranda, Margareth Maria B. G.SPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdf

Miranda Jr, PedroURANYL NITRATE COMPLEX WITH THE LIGAND 1,3-DITHIANE-1-OXIDE (DTSO)File: E11_598.pdf

Mitake, Malvina BoniDESCONTAMINAÇÃO DE SUPERFÍCIES NA USINA DE URÂNIO METÁLICO DA DIVISÃO DE PROCESSOS METALÚRGICOSIPEN/CNEN-SPFile: E01_489.pdf

Mitani, Solange E.APLICAÇÃO DA FLUORESCÊNCIA DE RAIOS X (WDXRFS) PARA A DETERMINAÇÃO DA ESPESSURA DE FILMES FINOSFile: E02_289.pdf

Molnary, Leslie deMODELO DE CAMADA LIMITE PLANETÁRIA PARA ESTIMAR A CONCENTRAÇÃO DE RADIONUCLÍDEOS EM LIBERAÇÕESACIDENTAISFile: E03_740.pdf

Mondino, Ángel VictorESTUDIO DE LA RETENCIÓN DE MOLIBDENO EN ALÚMINAFile: E11_676.pdf

Moniz, Antonio CarlosEFEITO DO pH NA ADSORÇÃO DE RADIOCÉSIO EM SOLOS TROPICAISFile: E08_125.pdf

Monte, Lauro José de BarrosANGRA 2 – QUALIFICAÇÃO DO PRODUTO DE REJEITO BETUMINIZADOFile: E05_686.pdf

Monteiro, Eduardo C.TRANSPORTE DE NITRATO DE TÓRIO PARA FIRMAS EXTERNAS AO IPEN-CNEN/SPFile: E01_265.pdf



inac2002VI ENAN

Authors


Monteiro, Paulo Roberto BuenoSISTEMA DE AQUISIÇÃO DE DADOS DO REATOR IEA-R1File: E04_135.pdf

Monteiro, Roberto Pellacani GuedesANÁLISE DO ESPECTRO DE VIDA MÉDIA DE ANIQUILAÇÃO DO PÓSITRON ATRAVÉS DE ESTUDOS DE PROBLEMASINVERSOSFile: E11_205.pdf

Moore, Willard S.USE OF RADIUM ISOTOPES TO DELINEATE SUBMARINE GROUNDWATER DISCHARGE FROM DIFFERENT SOURCES ANDTO ESTIMATE FLUXESFile: E03_410.pdf

Moraes, Fábio Alceu Akiyama deDETERMINAÇÃO DE TEMPO DE RESIDÊNCIA MÉDIO -TRM - EM UM DIGESTOR ANAERÓBIO DA ESTAÇÃO DE TRATAMENTODE ESGOTOS DE BARUERI COM UTILIZAÇÃO DE TRAÇADOR RADIOATIVOFile: E06_138.pdf

Moraes, Marco Antonio Proença VieiraTRITIUM CONCENTRATION ANALYSIS IN ENVIRONMENTAL WATER SAMPLES OF CENTRO NUCLEAR ARAMARFile: E03_026.pdf

Moraes, Maria Cristina Franco deREDUÇÃO DA TOXICIDADE DE SURFACTANTE SUBMETIDO À IRRADIAÇÃO COM FEIXE DE ELÉTRONS. RESULTADOSPRELIMINARESFile: E03_714.pdf

Moraes, Sam Lara deEFLUENT TREATMENT WITH LANTHANUM, GADOLINIUM AND CADMIUM THROUGH CROWN ETHERSFile: E02_238.pdf

Moraes, VanessaESTÁGIO ATUAL DO PROJETO DE PREPARO DO GEL DE MOLIBDATO DE ZIRCÔNIO PARA USO NOS GERADORES DE99Mo/99mTcFile: E07_268.pdfESTUDO DO DESEMPENHO DO GEL DE MOLIBDÊNIO COM TITÂNIO PARA UTILIZAÇÃO NOS GERADORES DE 99Mo/99mTcFile: E07_567.pdf

Morais, Carlos AntônioCHEMICAL TREATMENT OF LOW-LEVEL LIQUID WASTE – A CASE STUDY (TRATAMENTO QUÍMICO DE REJEITOS LÍQUIDOSDE BAIXA ATIVIDADE – CASO EXEMPLO)File: E05_620.pdf

Morales, Rudnei KaramPHASE MIXTURE COEXISTING IN ALPHA IMPLANTED YBaCuO COMPOUND PROBED BY POSITRONS ANNIHILATIONFile: E02_057.pdfMEDIDA DA CAPTAÇÃO DE IODO PELA TIREÓIDE: ANÁLISE COMPARATIVA ENTRE SISTEMA GAMA-CÂMARA COMCOLIMADOR “PINHOLE” E SISTEMA 13S002File: E04_040.pdf



inac2002VI ENAN

Authors


Moralles, MaurícioMONTE CARLO SIMULATIONS OF X-RAY GENERATION AND DETECTIONFile: E10_699.pdf

Morcelli, Claudia Petronilho RibeiroANÁLISE DE ELEMENTOS MAIORES E MENORES EM SOLOS POR ATIVAÇÃO NEUTRÔNICA E FLUORESCÊNCIA DE RAIOSXFile: E02_470.pdf

Moreira, Anderson CamargoMEDIDA DA POROSIDADE NO SOLO TRe (Terra Roxa Estruturada) UTILIZANDO A TÉCNICA DE TRANSMISSÃO DE RAIOS GAMAFile: E08_320.pdf

Moreira, Edson GonçalvesDETERMINAÇÃO DE ELEMENTOS TRAÇO EM MATERIAIS DE REFERÊNCIA DE SILÍCIO E FERRO-SILÍCIO PELO MÉTODOINSTRUMENTAL DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONSFile: E02_504.pdf

Moreira, Fernando José FirminoGESTÃO DE UMA UNIDADE DE ENSINO NA ÁREA NUCLEARFile: E14_551.pdf

Moreira, Rubens MartinsTIOCIANATO COMO TRAÇADOR RADIOATIVO EM CAMPO DE PETRÓLEOFile: E06_500.pdf

Moreira, SilvanaTOTAL AND AVAILABLE METAL CONTENTS IN SEDIMENTS BY SYNCHROTRON RADIATION TOTAL REFLECTION X-RAYFLUORESCENCEFile: E02_343.pdfANÁLISE MULTIELEMENTAR DE ÁGUA MINERAL UTILIZANDO TXRF COM RADIAÇÃO SÍNCROTRONFile: E02_658.pdfANÁLISE ELEMENTAR DE AMOSTRAS DENTÁRIAS HUMANAS USANDO SRXRFFile: E02_661.pdfESPECIAÇÃO E DETERMINAÇÃO DE ARSÊNIO E SELÊNIO EM AMOSTRAS DE ÁGUAS NATURAIS POR FLUORESCÊNCIADE RAIOS X DISPERSIVA EM ENERGIAFile: E03_342.pdfEMPREGO DA FLUORESCÊNCIA DE RAIOS X DISPERSIVA PARA AVALIAÇÃO DA POLUIÇÃO POR METAIS PESADOS EMAMOSTRAS DE ÁGUA E SEDIMENTOS DE LAGOSFile: E03_413.pdfDISPONIBILIDADE DE METAIS PESADOS EM SEDIMENTOS DE LAGOS UTILIZANDO TÉCNICAS DE EXTRAÇÃO QUÍMICA EDE FLUORESCÊNCIA DE RAIOS XFile: E03_433.pdf

Moreno, Elizabeth CastroPCR ASSOCIADO A HIBRIDIZAÇÃO COM SONDAS RADIOATIVAS DE DNA PARA A IDENTIFICAÇÃO DE INFECÇÃOSUBCLINICA CAUSADA POR LEISHMANIA CHAGASIFile: E07_749.pdf

Moreno, Mónica A.THE USE OF NAA FOR CHEMICAL CHARACTERISATION OF CLAY SOURCES WITHIN AN ARCHAEOLOGICAL CERAMICSTUDY IN THE CHASCHUIL-ABAUCAN REGION (TINOGASTA, CATAMARCA, ARGENTINA)File: E02_119.pdf



inac2002VI ENAN

Authors


Moreno, Silvana R. F.ESTUDO IN VIVO E IN VITRO DA LIGAÇÃO DO RADIOFÁRMACO 99mTc-DMSA AOS ELEMENTOS SANGÜÍNEOSFile: E07_241.pdfASSESSMENT OF THE EFFECT OF PHYTIC ACID ON THE LABELING OF BLOOD CELLS AND PLASMA PROTEINS WITHTECHNETIUM-99MFile: E09_227.pdf

Mori, Manoel NunesCARACTERIZAÇÃO DO POLI(ACETATO DE VINILA) OBTIDO POR RADIAÇÃO GAMAFile: E11_399.pdf

Mori, YasuoPURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVEPROBEFile: E07_652.pdf

Mortatti, JeffersonDETERMINAÇÃO DE δ15N EM EFLUENTES URBANOS POR MICRODIFUSÃO AMONIACAL À VÁCUOFile: E03_122.pdfESTUDO DA VARIABILIDADE TEMPORAL DIURNA DE δ15N E δ13C EM EFLUENTES DOMÉSTICOS DA CIDADE DEPIRACICABA (SP)File: E03_242.pdf

Mota, Helvécio CorreaDEPENDÊNCIA ANGULAR DE DOSÍMETROS TERMOLUMINESCENTES UTILIZADOS EM TOMOGRAFIA COMPUTADORIZADAFile: E01_111.pdfCÁLCULO DOS FATORES DE CONVERSÃO DE KERMA NO AR PARA EQUIVALENTE DE DOSE AMBIENTAL PARA FEIXEMONOENERGÉTICO DE FÓTONS ENTRE 0,01 MeV e 50 MeVFile: E01_134.pdf

Motta, Laura Maria Goretti daCOMPUTED TOMOGRAPHY TO DETERMINE FATIGUE CRACKING GROWTH PARAMETERS IN ASPHALTIC MIXTURESFile: E06_210.pdf

Moura, Eduardo dePREPARAÇÃO DE NANOPARTÍCULAS MAGNÉTICAS SILANIZADAS PARA UTILIZAÇÃO EM TÉCNICAS DE SEPARAÇÃOMAGNÉTICAFile: E11_346.pdf

Moura, Egberto GasparRADIOIMUNOENSAIO PARA DETERMINAÇÃO DO HORMÔNIO TIREOIDEANO NA PROLE DE RATAS HIPOTIREOIDEAS EHIPERTIREOIDEASFile: E09_312.pdf

Moura, Glaucio PereiraVALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137CS EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOS TROPICAISFile: E01_752.pdf

Moura, Sergio C.ANÁLISE QUANTITATIVA DE COMPÓSITO DE ALUMÍNIO REFORÇADO COM CARBETO DE SILÍCIO PELA TÉCNICA DEFLUORESCÊNCIA DE RAIOS X E RADIAÇÃO INFRAVERMELHAFile: E02_762.pdf



inac2002VI ENAN

Authors


Moura Junior, JoséEVOLUÇÃO DA MONITORAÇÃO AMBIENTAL COM TLD NO IRDFile: E01_534.pdfMONITORAÇÃO INDIVIDUAL DE EXTREMIDADES: 30 ANOS DE EXPERIÊNCIAFile: E01_565.pdfMONITORAÇÃO INDIVIDUAL DE NÊUTRONS: 18 ANOS DE EXPERIÊNCIAFile: E01_566.pdf

Mourão, Rogério PimentaCARACTERIZAÇÃO DE ESPUMA POLIMÉRICA PARA USO EM EMBALAGENS PARA TRANSPORTE DE REJEITOSRADIOATIVOSFile: E05_392.pdf

Mourão Filho, Francisco de Assis AlvesABSORÇÃO DE 65Zn PELAS FOLHAS DE LARANJEIRA E SUA TRANSLOCAÇÃO NA PLANTAFile: E08_151.pdf

Mozeto, Antonio A.DATAÇÃO DE SEDIMENTOS DO RESERVATÓRIO DE BARRA BONITA, RIO TIETÊ, SP COM 210Pb : DISTRIBUIÇÃO HISTÓRICADE METAIS PESADOSFile: E03_702.pdf

Munita, Casimiro S.CINÉTICA DE ADSORÇÃO DE Cu EM TURFAFile: E03_381.pdf

Muraoka, TakashiABSORÇÃO, TRANSLOCAÇÃO E REDISTRIBUIÇÃO DO NITROGÊNIO (15N) EM LARANJEIRAFile: E08_139.pdfABSORÇÃO DE 65Zn PELAS FOLHAS DE LARANJEIRA E SUA TRANSLOCAÇÃO NA PLANTAFile: E08_151.pdfUTILIZAÇÃO DO ENXOFRE APLICADO AO SOLO PELA SOJA, AVALIADO COM AS TÉCNICAS ISOTÓPICAS: 34S (ESTÁVEL) E35S (RADIOATIVO)File: E08_264.pdf

Mutis, Octavio P.DESIGN AND CONSTRUCTION OF THE FACILITY FOR NEUTRON DEPTH PROFILING IN RESEARCH REACTOR RECH-1File: E02_517.pdf

Nair, S.PRELIMINARY STUDIES CONCERNING SGD IN INDIAN COASTAL REGIONS USING 228RADIUM AND 226RADIUMFile: E03_906.pdf

Nalini Jr., Hermínio AriasOCORRÊNCIA DE MINERAIS RADIOATIVOS EM ROCHAS GRANÍTICAS ORNAMENTAISFile: E11_175.pdf

Nascimento, Edgar Vieira doEFEITO DE EXTRATOS DO MARACUJA-AÇU NA BIODISTRIBUIÇÃO DO TECNÉCIO-99m EM CAMUNDONGOSFile: E07_277.pdf

Nascimento, José Batista doCARACTERIZAÇÃO DO ESCOAMENTO HIDRÁULICO NOS TANQUES DE AERAÇÃO DA ESTAÇÃO DE TRATAMENTO DEESGOTO SUZANO, UTILIZANDO-SE TRAÇADOR RADIOATIVOFile: E06_415.pdf



inac2002VI ENAN

Authors


Nascimento, Marcos Roberto Lopes doDATAÇÃO DE SEDIMENTOS DO RESERVATÓRIO DE BARRA BONITA, RIO TIETÊ, SP COM 210Pb : DISTRIBUIÇÃO HISTÓRICADE METAIS PESADOSFile: E03_702.pdfEVALUATION OF THE 2-THIOBARBITURIC ACID METHOD FOR THE MEASUREMENT OF LIPID OXIDATION IN MECHANICALLYDEBONED GAMMA IRRADIATED CHICKEN MEATFile: E08_400.pdf

Nascimento, Nanci doASPECTOS MORFOLÓGICOS DA Leishmania amazonensis SUBMETIDA À AÇÃO DA RADIAÇÃO IONIZANTEFile: E09_654.pdfTAQUIZOÍTOS DE Toxoplasma gondii IRRADIADOS COM 255 Gy INDUZEM DIMINUIÇÃO DE CISTOS E LESÕES CEREBRAIS,EM CAMUNDONGOS DESAFIADOS COM CISTOS DA CEPA ME-49File: E09_688.pdf

Nascimento, SheilaCHARACTERIZATION OF MONAZITE DUST PARTICLESFile: E02_721.pdf

Nascimento Filho, Virgílio Franco doCARACTERIZAÇÃO QUÍMICA DE FRAGMENTOS CERÂMICOS ARQUEOLÓGICOS POR MICROFLUORESCÊNCIA DE RAIOSX (µ-XRF)File: E02_033.pdfFLUORESCÊNCIA DE RAIOS X POR REFLEXÃO TOTAL APLICADA À ANÁLISE DE ELEMENTOS QUÍMICOS EM CHÁ DEERVA-MATE (Ilex paraguariensis)File: E02_208.pdfCOMPOSIÇÃO QUÍMICA DE SOLO E BIOSSÓLIDO PELA TÉCNICA DE FLUORESCÊNCIA DE RAIOS XFile: E02_299.pdfPRÉ-CONCENTRAÇÃO EM SISTEMA DE FLUXO PARA DETERMINAÇÃO MULTIELEMENTAR EM AMOSTRAS DE ÁGUASFLUVIAIS POR FLUORESCÊNCIA DE RAIOS X COM REFLEXÃO TOTALFile: E02_639.pdfREMOÇÃO DE INTERFERENTES EM AMOSTRAS COM ALTOS TEORES DE SÓLIDOS DISSOLVIDOS PARA A DETERMINAÇÃODE ARSÊNIO E SELÊNIO POR TXRFFile: E02_641.pdfANÁLISE ELEMENTAR DE Alternanthera maritima E Blutaparon portulacoides (GOMPHRENEAE, AMARANTHACEAE) PORFLUORESCÊNCIA DE RAIOS XFile: E03_198.pdfEMPREGO DA FLUORESCÊNCIA DE RAIOS X DISPERSIVA PARA AVALIAÇÃO DA POLUIÇÃO POR METAIS PESADOS EMAMOSTRAS DE ÁGUA E SEDIMENTOS DE LAGOSFile: E03_413.pdfDISPONIBILIDADE DE METAIS PESADOS EM SEDIMENTOS DE LAGOS UTILIZANDO TÉCNICAS DE EXTRAÇÃO QUÍMICA EDE FLUORESCÊNCIA DE RAIOS XFile: E03_433.pdfIDENTIFICATION OF METALS IN BORDERING SOILS AND SEDIMENTS OF LAKE IPÊ-MS, BRAZIL, BY EDXRF TECHNIQUEFile: E03_515.pdfAPLICAÇÃO DA FLUORESCÊNCIA DE RAIO X NA DETERMINAÇÃO DE COMPONENTES INSOLÚVEIS NAS ÁGUAS DEPRECIPITAÇÃO EM REGIÃO CONTINENTAL SUBTROPICALFile: E03_541.pdfABSORÇÃO DE 65Zn PELAS FOLHAS DE LARANJEIRA E SUA TRANSLOCAÇÃO NA PLANTAFile: E08_151.pdfDISTRIBUIÇÃO VERTICAL DE 137Cs EM SOLOS DE MATA VIRGEM DA REGIÃO DE LONDRINA (PARANÁ)File: E08_382.pdfESTUDO DE FITOPATOLOGIAS ATRAVÉS DA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO EM ENERGIAFile: E08_537.pdf



inac2002VI ENAN

Authors


Navarro, Gustavo A.DESIGN AND CONSTRUCTION OF THE FACILITY FOR NEUTRON DEPTH PROFILING IN RESEARCH REACTOR RECH-1File: E02_517.pdf

Nazco, J.99mTc-EDTA AND 99mTc-DTPA COMPLEXES AS HYDROLOGICAL TRACERSFile: E06_073.pdf

Neumann-Cosel, P. vonTHE 1−,0⟩ STATE IN 12C REVISITEDFile: E10_416.pdf

Neves, Maria JoséINFLUÊNCIA DOS RADICAIS LIVRES GERADOS PELA IRRADIAÇÃO GAMA NOS NÍVEIS DE TREALOSE EM CÉLULAS DALEVEDURA Saccharomyces boulardiiFile: E09_655.pdf

Nícoli, Iêda GomesMÉTODO NUCLEAR APLICADO EM SÍTIOS ARQUEOLÓGICOS NA BACIA AMAZÔNICAFile: E02_451.pdfMANAGEMENT OF LOW AND MEDIUM LEVEL RADIOACTIVE WASTE IN THE UNIVERSITY OF BRAZÍLIA, THE CAPITAL OFBRAZILFile: E05_443.pdf

Nieto, Renata CorrêaESTÁGIO ATUAL DO PROJETO DE PREPARO DO GEL DE MOLIBDATO DE ZIRCÔNIO PARA USO NOS GERADORES DE99Mo/99mTcFile: E07_268.pdfESTUDO DO DESEMPENHO DO GEL DE MOLIBDÊNIO COM TITÂNIO PARA UTILIZAÇÃO NOS GERADORES DE 99Mo/99mTcFile: E07_567.pdf

Nóbrega, Armi W. daOTIMIZAÇÃO DE UM DECANTADOR/FLOCULADOR DE PLACAS PLANAS VERTICAIS EMPREGANDO-SE TRAÇADORESRADIOATIVOSFile: E06_901.pdf

Nogueira, Cláudio AiltonDISTRIBUIÇÃO DE ELEMENTOS METÁLICOS EM SEDIMENTOS DE DRENAGENS DO PARQUE ESTADUAL DA ILHA ANCHIETA- SPFile: E02_463.pdf

Nogueira, Guilherme de PáduaTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Nolasco, Felipe RufineRECUPERAÇÃO DE BROMO EM SOLUÇÕES RESIDUAIS GERADAS NA METODOLOGIA DE DETERMINAÇÃO ISOTÓPICADE 15N (RITTENBERG, 1946)File: E02_183.pdf



inac2002VI ENAN

Authors


Nouailhetas, YannickRESPOSTAS DE TRADESCANTIA A UMA SIMULAÇÃO DE AUMENTO DA RADIOATIVIDADE NATURALFile: E09_060.pdf

Novaes, Fernando ValadaresUSO DA RADIAÇÃO GAMA NO ENVELHECIMENTO DA AGUARDENTE DE CANA DE AÇÚCARFile: E08_777.pdf

Nozaki, JorgeIDENTIFICATION OF METALS IN BORDERING SOILS AND SEDIMENTS OF LAKE IPÊ-MS, BRAZIL, BY EDXRF TECHNIQUEFile: E03_515.pdf

Nozella, Eduardo FernandoINCORPORAÇÃO IN VITRO DO RADIOFÓSFORO PELOS MICRORGANISMOS RUMINAIS EM DIFERENTES PROPORÇÕESDO INÓCULOFile: E08_324.pdf

Obadia, Isaac JoséSISTEMA DE MONITORAÇÃO DE REJEITOS RADIOATIVOS HOSPITALARESFile: E04_028.pdfCARACTERIZAÇÃO DO MONITOR INTELIGENTE DE RADIAÇÃO, MODELO MIR 7026, PARA MEDIDAS DE EQUIVALENTE DEDOSE AMBIENTE, H*(10)File: E04_029.pdf

Oikawa, HiroshiRADIAÇÕES IONIZANTES E O REUSO DAS ÁGUASFile: E03_713.pdfREDUÇÃO DA TOXICIDADE DE SURFACTANTE SUBMETIDO À IRRADIAÇÃO COM FEIXE DE ELÉTRONS. RESULTADOSPRELIMINARESFile: E03_714.pdfINFLUÊNCIA DA PRESENÇA DE METAIS NA EFICIÊNCIA DE DEGRADAÇÃO DE COMPOSTOS ORGÂNICOS PELAIRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E03_717.pdf

Okazaki, KayoANÁLISE CITOGENÉTICA DO 153Sm-EDTMP EM LINFÓCITOS PERIFÉRICOS DE PACIENTES COM CÂNCER ÓSSEOMETASTÁTICOFile: E07_245.pdf

Okuno, EmicoMONTE CARLO SIMULATIONS OF X-RAY GENERATION AND DETECTIONFile: E10_699.pdf

Oliveira, Antonio E. deINTERCOMPARAÇÃO DAS MEDIÇÕES DE ATIVIDADE DO 67Ga EM SERVIÇOS DE MEDICINA NUCLEAR BRASILEIROSFile: E07_113.pdf



inac2002VI ENAN

Authors


Oliveira, Arno Heeren deCARACTERIZAÇÃO E CALIBRAÇÃO DE DOSÍMETROS DE EXTREMIDADE PARA FEIXES DE RADIAÇÃO BETA EM TERMOSDO EQUIVALENTE DE DOSE PESSOALFile: E01_085.pdfINAA AS TOOL FOR ENVIRONMENT BIOMONITORINGFile: E02_171.pdfAVALIAÇÃO DA CONTAMINAÇÃO POR METAIS ASSOCIADA AO DESPEJO DE CHORUME NO RIO CURURUPE-ILHÉUS-BAUTILIZANDO K0-INAA E ICP-MSFile: E03_146.pdf

Oliveira, Carolina B.TRITIUM CONCENTRATION ANALYSIS IN ENVIRONMENTAL WATER SAMPLES OF CENTRO NUCLEAR ARAMARFile: E03_026.pdf

Oliveira, Claudinéia Raquel deSÍNTESE DE COMPOSTOS ORGÂNICOS ENRIQUECIDOS EM 15NFile: E02_278.pdf

Oliveira, Helder deCOMPOSIÇÃO ELEMENTAR DE As, Br, La, Sm e Rb EM AMOSTRAS DE VEGETAIS E SOLO DE PASTAGEM TÍPICA DA REGIÃOSERRANA DO VALE DO PARAÍBAFile: E02_109.pdfCOMPOSIÇÃO QUÍMICA DE SOLO E BIOSSÓLIDO PELA TÉCNICA DE FLUORESCÊNCIA DE RAIOS XFile: E02_299.pdf

Oliveira, Icimone BragaPURIFICAÇÃO POR REFINAMENTO ZONAL PARA PREPARAÇÃO DOS DETECTORES SEMICONDUTORES DE PbI2 E TlBrFile: E04_115.pdf

Oliveira, Joselene deAPLICAÇÃO DE 222Rn COMO TRAÇADOR DA DESCARGA DE ÁGUAS SUBTERRÂNEAS NA REGIÃO COSTEIRA DE UBATUBA,SÃO PAULOFile: E03_624.pdf

Oliveira, Larissa Conceição GomesMÉTODO SIMPLIFICADO PARA AVALIAR A QUALIDADE DO SISTEMA MAMOGRÁFICOFile: E07_663.pdf

Oliveira, Laura C.NUCLEAR METHODOLOGY FOR STUDYING BIOLOGICAL FUNCTIONS OF MAMMALIANS SUBMITTED TO URANIUMINGESTIONFile: E02_418.pdfGAMMA SPECTROSCOPY OF EXCITED LEVELS IN 193IrFile: E10_284.pdf

Oliveira, Liana Macedo deA-TYPE APATITE/ESR DOSIMETRY IN THE THERAPY DOSE LEVEL TO PHOTONSFile: E01_690.pdf



inac2002VI ENAN

Authors


Oliveira, Luis Fernando deQUANTIFICAÇÃO HISTOMORFOMÉTRICA 2D A PARTIR DE TOMOGRAFIA COMPUTADORIZADA 3DFile: E07_110.pdf

Oliveira, Mara C.L.CHARACTERIZATION OF CORROSION PRODUCTS FROM Nd-Fe-B MAGNETS USED IN DENTAL PHOSTHESESFile: E02_656.pdf

Oliveira, Mauro Vitor deSISTEMA DE MONITORAÇÃO DE REJEITOS RADIOATIVOS HOSPITALARESFile: E04_028.pdf

Oliveira, Mércia Liane deCALIBRAÇÃO DE UM APLICADOR DERMATOLÓGICO DE 90Sr+90YFile: E01_521.pdf

Oliveira, Paulo FernandoDESENVOLVIMENTO E PRODUÇÃO DE FONTES DE COBALTO-60 PARA APLICAÇÃO EM SIDERÚRGICASFile: E06_437.pdfO AUMENTO DA POTÊNCIA DO REATOR TRIGA IPR-1:NOVAS PERSPECTIVAS DE ATIVIDADESFile: E12_564.pdf

Oliveira, Ricardo M. deMEDIDA DA POROSIDADE NO SOLO TRe (Terra Roxa Estruturada) UTILIZANDO A TÉCNICA DE TRANSMISSÃO DE RAIOS GAMAFile: E08_320.pdf

Oliveira, Rodemir dePROTEÇÃO RADIOLÓGICA OCUPACIONAL NO CENTRO TECNOLÓGICO DA MARINHA EM SÃO PAULOFile: E01_544.pdf

Oliveira, Sérgio Eduardo Martins deDETERMINAÇÃO DO VALOR D10 PARA ESCHERICHIA COLI O157:H7 EM DIFERENTES MEIOS DE CULTURAFile: E09_524.pdf

Oliveira, Wagner dos SantosCICLO DO COMBUSTÍVEL NUCLEAR: P&D E TECNOLOGIAS DE ARRASTEFile: E11_225.pdf

Oliveira Neto, José Messias deCARACTERIZAÇÃO DOS IMPACTOS AMBIENTAIS DEVIDO A OPERAÇÃO DE VÁRIAS INSTALAÇÕES NUCLEARES EM UMMESMO SÍTIOFile: E03_054.pdfUM ESTUDO COMPARATIVO DE MODELOS DE LIBERAÇÃO DE HEXAFLUORETO DE URÂNIO (UF6)File: E03_127.pdf

Omi, Nelson MinoruDESENVOLVIMENTO E IMPLANTAÇÃO DE UM IRRADIADOR MULTIPROPÓSITO DE COBALTO-60 TIPO COMPACTOFile: E12_501.pdf

Ono, ShizucaNEUTRON AND GAMMA RAY DOSE EQUIVALENT ESTIMATES FOR THE IEAV LINEAR ACCELERATORFile: E01_170.pdf



inac2002VI ENAN

Authors


Orgaz, MartinTHE USE OF NAA FOR CHEMICAL CHARACTERISATION OF CLAY SOURCES WITHIN AN ARCHAEOLOGICAL CERAMICSTUDY IN THE CHASCHUIL-ABAUCAN REGION (TINOGASTA, CATAMARCA, ARGENTINA)File: E02_119.pdf

Osso Junior, João AlbertoESTÁGIO ATUAL DO PROJETO DE PREPARO DO GEL DE MOLIBDATO DE ZIRCÔNIO PARA USO NOS GERADORES DE99Mo/99mTcFile: E07_268.pdfESTUDO DO DESEMPENHO DO GEL DE MOLIBDÊNIO COM TITÂNIO PARA UTILIZAÇÃO NOS GERADORES DE 99Mo/99mTcFile: E07_567.pdf

Pacheco, Ana Paula LimaESTUDO DO MÉTODO DE SÍNTESE E DA ESTABILIDADE DE RESPOSTA DA POLIANILINA DOPADA UTILIZADA EMAPLICAÇÕES DOSIMÉTRICASFile: E01_518.pdf

Paes, Paulo Cesar de ArrudaEFEITO DA TETRODOTOXINA NA LIBERAÇÃO DE ACETILCOLINA ESTIMULADA POR AGONISTAS GLUTAMATÉRGICOS EMTECIDO ESTRIATAL DE RATOSFile: E07_907.pdf

Paesano Junior, AndréaESTUDO DE FITOPATOLOGIAS ATRAVÉS DA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO EM ENERGIAFile: E08_537.pdf

Paiva, Byanca ReginaASPECTOS MORFOLÓGICOS DA Leishmania amazonensis SUBMETIDA À AÇÃO DA RADIAÇÃO IONIZANTEFile: E09_654.pdf

Panzarini, Luz Consuelo Gonzalez AlonsoRADICAIS FORMADOS NO N,N-DIMETILAMINOETIL METACRILATO GAMA-IRRADIADOFile: E11_671.pdf

Parra, Duclerc FernandesURANYL NITRATE COMPLEX WITH THE LIGAND 1,3-DITHIANE-1-OXIDE (DTSO)File: E11_598.pdfOXIDATIVE BEHAVIOR OF IRRADIATED POLYPROPYLENE, PREDICTED AS TEMPERATURE-OXIDATIVE INDUCTION TIME(TOIT)File: E11_748.pdf

Pascholati, Paulo ReginaldoDATA ACQUISITION SYSTEM FOR RESISTIVE CATHODE DETECTORSFile: E04_292.pdfTHE 1−,0⟩ STATE IN 12C REVISITEDFile: E10_416.pdf

Pasqualucci, Carlos A.DETERMINAÇÃO DE ELEMENTOS TRAÇO EM TECIDO ÓSSEO HUMANO PELO MÉTODO DE ATIVAÇÃO COM NÊUTRONSFile: E02_481.pdf



inac2002VI ENAN

Authors


Passos, Erivaldo Mário dosVERIFICAÇÃO DA EFETIVIDADE DE BLINDAGEM RADIOLÓGICA PARA O LABORATÓRIO DE CALIBRAÇÃO DOS MONITORESDE RADIAÇÃO DA CNAAAFile: E01_601.pdfIMPACTO RADIOLÓGICO DEVIDO À RUPTURA DE UM TANQUE RADIOATIVO NO EDIFÍCIO AUXILIAR DO REATOR DE ANGRA2File: E01_604.pdf

Pecequilo, Brigitte Roxana SoreanuINFLUÊNCIA DA ENERGIA DO PADRÃO DE CALIBRAÇÃO NA EFICIÊNCIA DE UM DETECTOR PROPORCIONAL PARACONTAGEM ALFA E BETA TOTAL EM AMOSTRAS DE ÁGUA.File: E04_234.pdf

Pedreira, Walter R.PRODUÇÃO DE LANTÂNIO DE ALTA PUREZA PARA APLICAÇÃO EM P&DFile: E11_173.pdf

Pedrero, ZoyneCHARACTERIZATION OF MONAZITE DUST PARTICLESFile: E02_721.pdf

Peixoto, Cláudia MarquesDIAGNÓSTICO DA QUALIDADE DO AR NA REGIÃO CIRCUNVIZINHA AO CDTNFile: E03_120.pdf

Peixoto, João E.DESENVOLVIMENTO DE UM CARTÃO DOSIMÉTRICO PARA MAMOGRAFIAFile: E01_417.pdf

Peixoto, José Guilherme PereiraIMPLEMENTATION OF A MAMMOGRAPHY CALIBRATION SYSTEMFile: E01_389.pdfAVALIAÇÃ0 DE COMPONENTES DE UM PADRÃO PRIMÁRIO PARA FEIXES DE RAIOS-X DE MAMOGRAFIAFile: E01_716.pdf

Peixoto, Tiago de PaulaDATA ACQUISITION SYSTEM FOR RESISTIVE CATHODE DETECTORSFile: E04_292.pdf

Pelicho, Aléscio FachimAPLICAÇÃO DA FLUORESCÊNCIA DE RAIO X NA DETERMINAÇÃO DE COMPONENTES INSOLÚVEIS NAS ÁGUAS DEPRECIPITAÇÃO EM REGIÃO CONTINENTAL SUBTROPICALFile: E03_541.pdf

Pellegrinotti, Daniel C.PRÉ-CONCENTRAÇÃO EM SISTEMA DE FLUXO PARA DETERMINAÇÃO MULTIELEMENTAR EM AMOSTRAS DE ÁGUASFLUVIAIS POR FLUORESCÊNCIA DE RAIOS X COM REFLEXÃO TOTALFile: E02_639.pdfREMOÇÃO DE INTERFERENTES EM AMOSTRAS COM ALTOS TEORES DE SÓLIDOS DISSOLVIDOS PARA A DETERMINAÇÃODE ARSÊNIO E SELÊNIO POR TXRFFile: E02_641.pdf



inac2002VI ENAN

Authors


Pellón, I. AlvarezIMPLEMENTATION AND EVALUATION OF k0-INAA FOR ENVIRONMENTAL STUDIESFile: E02_069.pdf

Penatti, Claudimir PedroRECUPERAÇÃO DO NITROGÊNIO (15N) DO AMÔNIO E DO NITRATO APLICADO AO SOLO PELA CANA-DE-AÇÚCARFile: E08_306.pdf

Penque, EmersonSPECT PARA AVALIAÇÃO DA PERFUSÃO CEREBRAL EM FUMANTESFile: E07_220.pdfDACRIOCINTILOGRAFIA NUCLEAR: AVALIAÇÃO DA DRENAGEM LACRIMAL EM PACIENTES ONCOLÓGICOS PÓSCIRÚRGICOS DE TUMORES DE FACEFile: E07_221.pdf

Peraza, Eduardo HerreraIMPLEMENTATION AND EVALUATION OF k0-INAA FOR ENVIRONMENTAL STUDIESFile: E02_069.pdfDATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANAFile: E03_072.pdf

Pereda, Claudio B.DESIGN AND CONSTRUCTION OF THE FACILITY FOR NEUTRON DEPTH PROFILING IN RESEARCH REACTOR RECH-1File: E02_517.pdf

Pereira, Elaine Henriques TeixeiraTIOCIANATO COMO TRAÇADOR RADIOATIVO EM CAMPO DE PETRÓLEOFile: E06_500.pdf

Pereira, Elton GomesPROPOSTA DE METODOLOGIA DE CÁLCULO DE DOSE EXTERNA ANUAL EM LEVANTAMENTOS RADIOMÉTRICOS EMSALAS DE HEMODINÂMICAFile: E01_450.pdfPROTEÇÃO RADIOLÓGICA EM RADIODIAGNÓSTICO ODONTOLÓGICO EM MINAS GERAISFile: E07_412.pdf

Pereira, Ioná PonceLUGAR DE PARADOXOS PELOS CAMINHOS DISCURSIVOS DO SETOR NUCLEARFile: E14_673.pdf

Pereira, José dos Santos JorgeDETERMINAÇÃO DE CESIO POR ESPECTROMETRIA DE ENERGIA DE RAIOS X EM AMOSTRAS DE LIXIVIAÇÃO DEPRODUTOS CIMENTADOSFile: E02_420.pdf

Pereira, Marco A. G.SCATTERING FRACTION OF X-RAYS INCIDENT ON A PHANTOM FROM THE MEASURED ENERGY SPECTRAFile: E01_556.pdf



inac2002VI ENAN

Authors


Pereira, Maria da Conceição CostaESTUDO DAS CARACTERÍSTICAS ÓPTICAS E CINTILADORAS DO CRISTAL CsI ATIVADO COM BROMO CRESCIDO PELATÉCNICA DE BRIDGMANFile: E04_155.pdfESPECTRÔMETRO DE ENERGIA PORTÁTIL UTILIZANDO DETECTOR DE CsI(Tl) COM FOTODIODOFile: E04_172.pdf

Pereira, MárioASSESSMENT OF THE EFFECT OF MENTHA CRISPA L. (HORTELÃ) EXTRACT ON THE LABELING OF RED BLOOD CELLSAND PLASMA PROTEINS WITH TECHNETIUM-99MFile: E07_041.pdf

Pereira, Marivalda M.ANÁLISE DE VIDROS BIOATIVOS E RADIOATIVOS PARA BRAQUITERAPIA DE CÂNCER DE PRÓSTATAFile: E11_269.pdf

Pereira, Nilda Sosa deSYNTHESIS AND QUALITY CONTROL OF 18F-FDG AT IPEN-CNEN/SPFile: E07_712.pdf

Pereira, Wagner de SouzaPROGRAMA DE MONITORAÇÃO OCUPACIONAL DA UNIDADE DE CONCENTRADO DE URÂNIO DE CAETITÉ (URA)-BA,BRASIL: PROGRAMA DE BIOANÁLISEFile: E01_594.pdfAVALIAÇÃO DA DOSE EFETIVA ANUAL DEVIDA AO FUNCIONAMENTO DA UNIDADE DE CONCENTRADO DE URÂNIOURA - CAETITÉ - BA - BRASILFile: E03_590.pdfMODELAGEM DA DISPERSÃO DE RADIONUCLÍDEOS E CÁLCULO DE DOSE EFETIVA ANUAL NA UNIDADE DECONCENTRADO DE URÂNIO (URA), CAETITÉ - BA -BRASILFile: E03_591.pdfMONITORAÇÃO AMBIENTAL DA UNIDADE DE CONCENTRADO DE URÂNIO ( URA) EM CAETITÉ, BA, BRASILFile: E03_593.pdf

Peres, Ana CláudiaMONITORAMENTO DOS NÍVEIS DE RADIOATIVIDADE ALFA E BETA GLOBAL EM ÁGUAS DE ABASTECIMENTO PÚBLICO DOESTADO DE SÃO PAULOFile: E03_583.pdf

Peres, Marcos A. L.CALIBRAÇÃO DE MEDIDORES DE KV COM A GRANDEZA POTENCIAL DE PICO PRÁTICO (IEC 1676)File: E04_695.pdf

Perez, Carlos AlbertoCARACTERIZAÇÃO QUÍMICA DE FRAGMENTOS CERÂMICOS ARQUEOLÓGICOS POR MICROFLUORESCÊNCIA DE RAIOSX (µ-XRF)File: E02_033.pdfANÁLISE ELEMENTAR DE AMOSTRAS DENTÁRIAS HUMANAS USANDO SRXRFFile: E02_661.pdf



inac2002VI ENAN

Authors


Pérez, Daniel VidalVALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137Cs EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOS TROPICAISFile: E01_752.pdfTRANSFER AND MOBILITY OF 137CS AND 60CO IN OXISOL AND ALFISOLFile: E01_753.pdf

Pérez, E.99mTc-EDTA AND 99mTc-DTPA COMPLEXES AS HYDROLOGICAL TRACERSFile: E06_073.pdf

Pérez, LidiaVALIDATION PROCEDURE FOR THE FABRICATION SEQUENCE OF SELF-POWERED NEUTRON DETECTORS FOR NPPDEVELOPED BY CNEAFile: E04_719.pdf

Perin, Tiago RebelloREMOÇÃO DE EURÓPIO POR PRECIPITAÇÃO DA FERRITAFile: E05_341.pdf

Perrota, José AugustoIDENTIFICATION OF ORGANIZATION VALUES ACCORDING TO THE PERCEPTION OF THE EMPLOYEES OF THE ENERGETICAND NUCLEAR RESEARCH INSTITUTE- IPENFile: E14_487.pdf

Petroni, Sérgio Luis GracianoCINÉTICA DE ADSORÇÃO DE Cu EM TURFAFile: E03_381.pdf

Pinheiro, Valdéres FernandesIMPLANTAÇÃO DE MÉTODOS DE ENSINO À DISTÂNCIA PARA USO EM INSTITUTOS DE PESQUISAS TECNOLÓGICASUTILIZANDO COMO MEIO À INTERNETFile: E14_161.pdf

Pino, Eddy SeguraCOMPATIBILIZATION OF POLYAMIDE 6,6 /LINEAR LOW-DENSITY POLYETHYLENE BLEND BY ELECTRON IRRADIATIONFile: E11_168.pdfCARACTERIZAÇÃO DE ALOENXERTOS SUBMETIDOS À RADIAÇÃO IONIZANTEFile: E07_179.pdf

Pinto, Amenônia Maria FerreiraTIOCIANATO COMO TRAÇADOR RADIOATIVO EM CAMPO DE PETRÓLEOFile: E06_500.pdf

Pires, José AntônioANÁLISE DA IMUNORREATIVIDADE DO ANTICORPO MONOCLONAL ANTI-CEA IOR-1 MARCADO COM 99mTcFile: E07_705.pdf

Pires, Luis F.DETERMINAÇÃO DA CURVA DE RETENÇÃO DA ÁGUA NO SOLO COM AUXILIO DA TRANSMISSÃO DE RAIOSGAMAFile: E08_147.pdf

Pires, Luis Fernando GonçalvesDETERMINAÇÃO DO VALOR D10 PARA ESCHERICHIA COLI O157:H7 EM DIFERENTES MEIOS DE CULTURAFile: E09_524.pdf



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Pires, Maria Aparecida FaustinoDESENVOLVIMENTO DE METODOLOGIA PARA AVALIAÇÃO DE IMPUREZAS EM U3O8 POR ICP-OESFile: E02_081.pdfCINÉTICA DE ADSORÇÃO DE Cu EM TURFAFile: E03_381.pdfDETERMINAÇÃO DA CONCENTRAÇÃO TOTAL DE TERRAS RARAS EM ÓXIDO DE URÂNIO-GADOLÍNIO POR GRAVIMETRIA,COM SEPARAÇÃO PRÉVIA DO URÂNIOFile: E11_904.pdf

Pizarro, LuisRADIOINMUNOENSAYO PARA PROGESTERONA EN LECHE BOVINAFile: E08_250.pdf

Plá, Rita R.THE USE OF NAA FOR CHEMICAL CHARACTERISATION OF CLAY SOURCES WITHIN AN ARCHAEOLOGICAL CERAMICSTUDY IN THE CHASCHUIL-ABAUCAN REGION (TINOGASTA, CATAMARCA, ARGENTINA)File: E02_119.pdf

Poirior, Andre Pierre ProusESTUDO ARQUEOMÉTRICO DE CERÂMICAS DO AMAZONASFile: E02_197.pdf

Polônio, Maria LúciaDOSE DE INGESTÃO DEVIDO AO CONSUMO DE ALIMENTOS: DIFERENÇAS ENTRE ÁREAS DE RADIOATIVIDADE NATURALELEVADA E NORMALFile: E01_619.pdf

Poquet, IsabelVALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137Cs EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOS TROPICAISFile: E01_752.pdf

Portezan, OtávioMEDIDA DA POROSIDADE NO SOLO TRe (Terra Roxa Estruturada) UTILIZANDO A TÉCNICA DE TRANSMISSÃO DE RAIOS GAMAFile: E08_320.pdf

Potiens, Maria da Penha AlbuquerqueCOMPORTAMENTO DE MONITORES, NÍVEL RADIODIAGNÓSTICO, EM FEIXES PADRONIZADOS DE RADIAÇÃO XFile: E01_711.pdfCONTROLE DE QUALIDADE DE UM SISTEMA DE REFERÊNCIA PARA A CALIBRAÇÃO DE INSTRUMENTOS EMRADIODIAGNÓSTICOFile: E01_767.pdf

Potiens Júnior, Ademar JoséDESENVOLVIMENTO DE UMA METODOLOGIA PARA CARACTERIZAÇÃO ISOTÓPICA DE TAMBORES DE REJEITORADIOATIVO UTILIZANDO-SE TÉCNICAS DE SIMULAÇÃO MATEMÁTICAFile: E05_706.pdf

Povinec, Pavel P.RADIONUCLIDE SURFACE WATER TIME SERIES IN THE ATLANTIC OCEANFile: E03_394.pdf



inac2002VI ENAN

Authors


Prado, Thaís C.ANÁLISE QUANTITATIVA DE COMPÓSITO DE ALUMÍNIO REFORÇADO COM CARBETO DE SILÍCIO PELA TÉCNICA DEFLUORESCÊNCIA DE RAIOS X E RADIAÇÃO INFRAVERMELHAFile: E02_762.pdf

Prestes, Clélber VieiraSÍNTESE DE COMPOSTOS ORGÂNICOS ENRIQUECIDOS EM 15NFile: E02_278.pdf

Primavesi, OdoAPLICAÇÃO DA ANÁLISE POR ATIVAÇÃO COM NÊUTRONS PARA DETERMINAÇÃO DE FERRO EM FORRAGEIRAS USADASNO SISTEMA INTENSIVO DE PRODUÇÃO DE BOVINOS DE LEITEFile: E02_428.pdf

Puget, Flávia P.NOVO PROCESSO PARA TRATAMENTO DE EFLUENTES RADIOATIVOSFile: E03_615.pdf

Pupak, Márcia OrricoIDENTIFICATION OF ORGANIZATION VALUES ACCORDING TO THE PERCEPTION OF THE EMPLOYEES OF THE ENERGETICAND NUCLEAR RESEARCH INSTITUTE- IPENFile: E14_487.pdf

Py Junior, Delcy de AzevedoPROGRAMA DE MONITORAÇÃO OCUPACIONAL DA UNIDADE DE CONCENTRADO DE URÂNIO DE CAETITÉ (URA)-BA,BRASIL: PROGRAMA DE BIOANÁLISEFile: E01_594.pdfAVALIAÇÃO DA DOSE EFETIVA ANUAL DEVIDA AO FUNCIONAMENTO DA UNIDADE DE CONCENTRADO DE URÂNIOURA - CAETITÉ - BA - BRASILFile: E03_590.pdfMODELAGEM DA DISPERSÃO DE RADIONUCLÍDEOS E CÁLCULO DE DOSE EFETIVA ANUAL NA UNIDADE DECONCENTRADO DE URÂNIO (URA), CAETITÉ - BA -BRASILFile: E03_591.pdfMONITORAÇÃO AMBIENTAL DA UNIDADE DE CONCENTRADO DE URÂNIO ( URA) EM CAETITÉ, BA, BRASILFile: E03_593.pdf

Queiroz, Carlos Alberto da SilvaPRODUÇÃO DE LANTÂNIO DE ALTA PUREZA PARA APLICAÇÃO EM P&DFile: E11_173.pdfRECUPERAÇÃO DE TÓRIO COMO NITRATO “MANTLE GRADE” USANDO-SE UM HIDRÓXIDO DE TÓRIO BRUTOFile: E11_180.pdfSÍNTESE E CARACTERIZAÇÃO DE PRECURSORES À BASE DE LANTÂNIO PARA APLICAÇÃO EM CATALISADORESFile: E11_191.pdf

Queiroz Neto, João C.DETERMINAÇÃO E ANÁLISE QUANTITATIVA DO PERFIL DA INVASÃO DE SÓLIDOS USANDO TC COM RAIOS X EM ARENITOSCONSOLIDADOSFile: E04_177.pdfESTUDO DOS DANOS CAUSADOS POR FLUIDO DE P ERFURAÇÃO EM AMOSTRAS DE ARENITO UTILIZANDO AFLUORESCÊNCIA DE RAIOS X DISPERSIVA EM ENERGIA (EDXRF)File: E11_176.pdf



inac2002VI ENAN

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Quinelato, Antonio LuizDISTRIBUIÇÃO DE RADIONUCLÍDEOS NATURAIS NOS PRODUTOS DA FABRICAÇÃO DE ÁCIDO FOSFÓRICO COM ROCHAFOSFÁTICA DE ITATAIA - CEARÁFile: E03_046.pdf

Rabi, José AntonioPREDICTION OF Rn-222 EXHALATION RATES FROM PHOSPHOGYPSUM-BASED EMBANKMENTS. PART I: PHYSICAL-MATHEMATICAL MODELINGFile: E03_557.pdfPREDICTION OF Rn-222 EXHALATION RATES FROM PHOSPHOGYPSUM-BASED EMBANKMENTS. PART II: NUMERICALSIMULATION AND RESULTSFile: E03_558.pdf

Rafiei, HamidPRODUCTION OF SELENIUM-75 AND RADIOSYNTHESIS OF [75Se]-4-ETHOXYCARBONYL-5-METHYL-1,2,3-SELENADIAZOLEFile: E07_065.pdf

Ramírez, MartaDATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANAFile: E03_072.pdf

Ramos, Anthenor C.MANAGEMENT OF LOW AND MEDIUM LEVEL RADIOACTIVE WASTE IN THE UNIVERSITY OF BRAZÍLIA, THE CAPITAL OFBRAZILFile: E05_443.pdf

Ramos, Manoel Mattos OliveiraCARACTERIZAÇÃO DO MONITOR INTELIGENTE DE RADIAÇÃO, MODELO MIR 7026, PARA MEDIDAS DE EQUIVALENTE DEDOSE AMBIENTE, H*(10)File: E04_029.pdf

Rampazo, Luís Gustavo de LázaroESTUDO DE FITOPATOLOGIAS ATRAVÉS DA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO EM ENERGIAFile: E08_537.pdf

Ratto, Norma R.THE USE OF NAA FOR CHEMICAL CHARACTERISATION OF CLAY SOURCES WITHIN AN ARCHAEOLOGICAL CERAMICSTUDY IN THE CHASCHUIL-ABAUCAN REGION (TINOGASTA, CATAMARCA, ARGENTINA)File: E02_119.pdf

Rebelo, Ana Maria. O.MEDIDA DA CAPTAÇÃO DE IODO PELA TIREÓIDE: ANÁLISE COMPARATIVA ENTRE SISTEMA GAMA-CÂMARA COMCOLIMADOR “PINHOLE” E SISTEMA 13S002File: E04_040.pdf

Regueiro, Jose L.FABRICATION, QUALIFICATION AND CALIBRATION OF 60Co SEALED SOURCESFile: E06_774.pdf

Reis, Luiz Carlos AlvesESTADO ATUAL DO SISTEMA DE INFORMAÇÕES SOBRE FONTES SELADAS FORA DE USO NO CDTNFile: E05_478.pdf



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Reis, Marcelo de CarvalhoCARACTERIZAÇÃO MECÂNICA DE HIDROGÉIS DE PVAl PARA SEREM UTILIZADOS COMO CARTILAGEM ARTICULARARTIFICIAL RETICULADOS POR RADIAÇÃOFile: E11_543.pdf

Reis Júnior, Aluísio SousaESTUDO DAS ALTERAÇÕES ESTRUTURAIS EM ARGILAS PILARIZADASFile: E11_432.pdf

Rela, Paulo RobertoCARACTERIZAÇÃO DE TUBO DE TITÂNIO PARA CONFECÇÃO DE SEMENTES DE IODO-125 UTILIZADAS EMBRAQUITERAPIAFile: E11_511.pdfDESENVOLVIMENTO E IMPLANTAÇÃO DE UM IRRADIADOR MULTIPROPÓSITO DE COBALTO-60 TIPO COMPACTOFile: E12_501.pdf

Renterghem, Catherine VanPURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVEPROBEFile: E07_652.pdf

Rezende, Letícia DrummondVIABILIDADE DO USO DE ANÁLOGO DE SOMATOSTATINA NA TERAPIA DE CAPTURA DE NÊUTRONSFile: E07_249.pdf

Ribeiro, Andreza PortellaAPLICAÇÃO DA NAA NO ESTUDO DO COMPORTAMENTO GEOQUÍMICO DE ELEMENTOS DE INTERESSE EM SEDIMENTOSLACUSTRES DE UMA ESTAÇÃO DE TRATAMENTO DE ESGOTOFile: E02_371.pdf

Ribeiro, Fernando BrenhaESTUDO DO DESEQUILÍBRIO RADIOATIVO EM ROCHAS VULCÂNICAS DO MONTE CAMEROON (REPÚBLICA DOSCAMARÕES - ÁFRICA)File: E03_519.pdfDETERMINAÇÃO DOS PARÂMETROS NECESSÁRISOS PARA AVALIAÇÃO DO IMPACTO AMBIENTAL DECORRENTE DAUTILIZAÇÃO DO FOSFOGESSOFile: E03_574.pdfDISTRIBUIÇÃO DA RADIOATIVIDADE NATURAL NA FORMAÇÃO IRATÍ NA REGIÃO DE LIMEIRA, SPFile: E03_681.pdf

Ribeiro, Fernando CastilhoDETERMINAÇÃO ESPECTROFOTOMÉTRICA DE URÂNIO(VI) COM ARSENAZO III, EM MEIO NÍTRICOFile: E02_368.pdf

Ribeiro, João Luiz B.DETERMINAÇÃO E ANÁLISE QUANTITATIVA DO PERFIL DA INVASÃO DE SÓLIDOS USANDO TC COM RAIOS X EM ARENITOSCONSOLIDADOSFile: E04_177.pdfESTUDO DOS DANOS CAUSADOS POR FLUIDO DE P ERFURAÇÃO EM AMOSTRAS DE ARENITO UTILIZANDO AFLUORESCÊNCIA DE RAIOS X DISPERSIVA EM ENERGIA (EDXRF)File: E11_176.pdf



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Ribeiro, Márcia AlmeidaDETERMINAÇÃO DO GRAU DE REMOÇÃO DE METAIS TÓXICOS COMO As, Hg, Pb e Cd EM SOLUÇÃO SIMULADA DEEFLUENTES INDUSTRIAIS NA PRESENÇA DE “SCAVENGERS” APÓS A IRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E02_167.pdfINFLUÊNCIA DA PRESENÇA DE METAIS NA EFICIÊNCIA DE DEGRADAÇÃO DE COMPOSTOS ORGÂNICOS PELAIRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E03_717.pdf

Ribeiro, MarisildaDETERMINAÇÃO DE ELEMENTOS MINERAIS E TRAÇOS EM DIETAS PELA TÉCNICA DE ATIVAÇÃO NEUTRÔNICAFile: E02_562.pdf

Richter, A.THE 1−,0⟩ STATE IN 12C REVISITED

File: E10_416.pdf

Rigolon, Leda Shizue YanagiharaESTUDO DO EQUILÍBRIO ELETRÔNICO NO ALUMÍNIO UTILIZANDO O DOSÍMETRO TERMOLUMINESCENTE DE CaSO4:DyFile: E01_316.pdf

Rio, Mônica Pires doDISSEMINAÇÃO DE 137Cs NA ÁREA URBANA DE GOIÂNIA POR RESSUSPENSÃO E TRANSPORTE DE SOLO SUPERFICIALFile: E01_689.pdf

Rizo, Oscar DíazIMPLEMENTATION AND EVALUATION OF k0-INAA FOR ENVIRONMENTAL STUDIESFile: E02_069.pdfDATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANAFile: E03_072.pdfOPTIMISATION METHOD FOR THE ADMINISTERED ACTIVITY TO PATIENTS IN Tc-99m-HMPAO CEREBRAL BLOOD FLOWSPECT IN ADULTSFile: E07_136.pdf

Roberto, Wanderley dos SantosANÁLISE DE VIDROS BIOATIVOS E RADIOATIVOS PARA BRAQUITERAPIA DE CÂNCER DE PRÓSTATAFile: E11_269.pdf

Rocha, Felícia Del GalloDESEMPENHO DE UM SISTEMA PADRÃO DE INTERCOMPARAÇÃO EM FEIXES DE RAIOS X DE ENERGIAS BAIXASFile: E01_697.pdf

Rocha, Hélio Fernandes daANÁLISE DE AMINOACIDOS ATRAVÉS DAS TÉCNICAS DO AGRUPAMENTO E PARCELAMENTO DE SEÇÕES DE CHOQUEPARA NÊUTRONSFile: E09_589.pdf

Rocha, Henrique de SouzaCONSTRUÇÃO DE FANTOMAS ATRAVÉS DE LITOGRAFIA PARA ANÁLISE DE SISTEMAS MICRO-RADIOGRÁFICOSFile: E04_162.pdf



inac2002VI ENAN

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Rocha, Rafael Fernandes daEFLUENT TREATMENT WITH LANTHANUM, GADOLINIUM AND CADMIUM THROUGH CROWN ETHERSFile: E02_238.pdf

Rocha, Soraya Maria Rizzo daPRODUÇÃO DE LANTÂNIO DE ALTA PUREZA PARA APLICAÇÃO EM P&DFile: E11_173.pdfSÍNTESE E CARACTERIZAÇÃO DE PRECURSORES À BASE DE LANTÂNIO PARA APLICAÇÃO EM CATALISADORESFile: E11_191.pdf

Rocha, Wilson Roberto Dejato daMEDIDA DA POROSIDADE NO SOLO TRe (Terra Roxa Estruturada) UTILIZANDO A TÉCNICA DE TRANSMISSÃO DE RAIOS GAMAFile: E08_320.pdf

Rocha, ZildeteREVISÃO DE TRABALHOS E PROPOSTA DE EXPLORAÇÃO DA TÉCNICA DE NEUTRONGRAFIA NO REATOR TRIGA IPR-R1DO CDTNFile: E02_214.pdfEXPLORAÇÃO DO FEIXE DE NÊUTRONS EMERGENTE DO REATOR TRIGA IPR-R1 (MARK-I) PARA APLICAÇÕES GERAISFile: E13_215.pdf

Rochedo, Elaine Rua RodriguezAPLICAÇÃO DO SISTEMA INTEGRADO DE AVALIAÇÃO DE IMPACTO RADIOLÓGICO AMBIENTAL EM SITUAÇÕES DEEMERGÊNCIA PARA A AVALIAÇÃO DA EXPOSIÇÃO RADIOLÓGICA DE POPULAÇÕES DE ÁREAS URBANASFile: E01_448.pdfDESENVOLVIMENTO DE UM SISTEMA INTEGRADO PARA AVALIAÇÃO DE IMPACTO RADIOLÓGICO AMBIENTAL EMSITUAÇÕES DE EMERGÊNCIAFile: E01_449.pdfVALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137Cs EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOS TROPICAISFile: E01_752.pdf

Ródenas, CarmenDATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANAFile: E03_072.pdf

Rodrigues, Demerval LeônidasTRANSPORTE DE NITRATO DE TÓRIO PARA FIRMAS EXTERNAS AO IPEN-CNEN/SPFile: E01_265.pdfDESCONTAMINAÇÃO DE SUPERFÍCIES NA USINA DE URÂNIO METÁLICO DA DIVISÃO DE PROCESSOS METALÚRGICOSIPEN/CNEN-SPFile: E01_489.pdf

Rodrigues, Laura NatalIMPLEMENTATION OF ABSORBED DOSE STANDARDIZATION AT THERAPY-LEVEL IN BRAZILFile: E01_660.pdfA-TYPE APATITE/ESR DOSIMETRY IN THE THERAPY DOSE LEVEL TO PHOTONSFile: E01_690.pdf



inac2002VI ENAN

Authors


Rodrigues Júnior, Ary de AraújoADAPTAÇÃO DE UM JOGO COMERCIAL DE PERGUNTAS PARA O AUXÍLIO NO ENSINO DE RADIOPROTEÇÃOFile: E01_088.pdfRELEMBRANDO OS CONCEITOS DE RADIOPROTEÇÃO POR MEIO DE UM JOGO COMERCIAL ADAPTADOFile: E01_089.pdf

Rodrigues Júnior, OrlandoCARACTERIZAÇÃO DA RESPOSTA RPE DOS EXCIPIENTES DOS MEDICAMENTOS PARA APLICAÇÃO EM DOSIMETRIA DEACIDENTEFile: E01_498.pdfESTUDOS PRELIMINARES DAS PROPRIEDADES DOSIMÉTRICAS DO CaSO 4:MN PELA TÉCNICA ESPECTROSCÓPICA DERPEFile: E01_632.pdf

Rodríguez, Carlos HernándezOPTIMISATION METHOD FOR THE ADMINISTERED ACTIVITY TO PATIENTS IN Tc-99m-HMPAO CEREBRAL BLOOD FLOWSPECT IN ADULTSFile: E07_136.pdf

Rodriguez, OscarTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Rogachevskaya, Liliya M.GROUNDWATER RESOURCES AND REGIONAL ENVIRONMENTAL RADIONUCLIDE CONTAMINATIONFile: E03_335.pdf

Rogero, José RobertoANÁLISE CITOGENÉTICA DO 153Sm-EDTMP EM LINFÓCITOS PERIFÉRICOS DE PACIENTES COM CÂNCER ÓSSEOMETASTÁTICOFile: E07_245.pdfEFEITO DA TETRODOTOXINA NA LIBERAÇÃO DE ACETILCOLINA ESTIMULADA POR AGONISTAS GLUTAMATÉRGICOS EMTECIDO ESTRIATAL DE RATOSFile: E07_907.pdfIMPLANTAÇÃO DE MÉTODOS DE ENSINO À DISTÂNCIA PARA USO EM INSTITUTOS DE PESQUISAS TECNOLÓGICASUTILIZANDO COMO MEIO À INTERNETFile: E14_161.pdfIDENTIFICATION OF ORGANIZATION VALUES ACCORDING TO THE PERCEPTION OF THE EMPLOYEES OF THE ENERGETICAND NUCLEAR RESEARCH INSTITUTE- IPENFile: E14_487.pdf

Rogero, Sizue OtaCHARACTERIZATION OF CORROSION PRODUCTS FROM Nd-Fe-B MAGNETS USED IN DENTAL PHOSTHESESFile: E02_656.pdfHIDROGEL DE POLI(1-VINIL-2-PIRROLIDONA) (PVP) COMO MATRIZ POLIMÉRICA PARA SISTEMA DE LIBERAÇÃO DEFÁRMACOFile: E07_434.pdfCARACTERIZAÇÃO DO HIDROGEL DE POLI(N-VINIL-2-PIRROLIDONA) PARA USO VETERINÁRIOFile: E11_548.pdf



inac2002VI ENAN

Authors


Roman, EdsonIDENTIFICATION OF ORGANIZATION VALUES ACCORDING TO THE PERCEPTION OF THE EMPLOYEES OF THE ENERGETICAND NUCLEAR RESEARCH INSTITUTE- IPENFile: E14_487.pdf

Romaneli, Maria FernandaREDUÇÃO DA TOXICIDADE DE SURFACTANTE SUBMETIDO À IRRADIAÇÃO COM FEIXE DE ELÉTRONS. RESULTADOSPRELIMINARESFile: E03_714.pdfTESTE DO COMETA NA DETECÇÃO DE ALHO IRRADIADOFile: E08_334.pdf

Romero Filho, Christovam RomeroUM SISTEMA PARA MONITORAÇÃO REMOTA DOS NÍVEIS DE RADIAÇÃO NO PRÉDIO DO REATOR IEA-R1 NO CASO DEUMA EMERGÊNCIA RADIOLÓGICAFile: E04_166.pdf

Roque, Mário LúcioEFEITO DO pH NA ADSORÇÃO DE RADIOCÉSIO EM SOLOS TROPICAISFile: E08_125.pdf

Rosa, Luiz Antonio R. daMEDIDAS IN VIVO EM PACIENTES SUBMETIDOS À RADIOTERAPIA PARA TRATAMENTO DE CÂNCER DE CABEÇA EPESCOÇOFile: E07_023.pdf

Rosário, Salmo Cordeiro doESTUDO DO EFEITO DA DOSE DE RADIOESTERILIZAÇÃO SOBRE AS PROPRIEDADES DO POLI(TEREFTALATO DE ETILENO)- PET RECICLADOFile: E11_438.pdf

Rossete, Alexssandra L. R. MolinaDETERMINAÇÃO DE 34S POR ESPECTROMETRIA DE MASSAS (% EM ÁTOMOS), DO S-SULFATO DISPONÍVEL EM AMOSTRASDE SOLOFile: E02_276.pdfOBTENÇÃO DO GESSO AGRÍCOLA MARCADO NO 34S (Ca34SO4.2H2O), POR REAÇÃO QUÍMICA ENTRE O H2

34SO4 E O Ca(OH)2

File: E02_280.pdfDETERMINAÇÃO DA RAZÃO ISOTÓPICA δ13C (‰) DE CERVEJAS CLARA TIPO PILSEN NACIONALFile: E08_207.pdf

Rossi, Alexandre MaltaEFEITO DA DOPAGEM COM LÍTIO NO SINAL INDICADOR DE DOSE (RADICAL CO2

-) EM DOSIMETRIA POR RPE DECARBOAPATITAS SINTÉTICAS DO TIPO BFile: E01_053.pdf

Rostelato, Maria Elisa Chuery MartinsCARACTERIZAÇÃO DE TUBO DE TITÂNIO PARA CONFECÇÃO DE SEMENTES DE IODO-125 UTILIZADAS EMBRAQUITERAPIAFile: E11_511.pdf



inac2002VI ENAN

Authors


Roushanfarzad, PejmanPRODUCTION OF SELENIUM-75 AND RADIOSYNTHESIS OF [75Se]-4-ETHOXYCARBONYL-5-METHYL-1,2,3-SELENADIAZOLEFile: E07_065.pdf

Ruiz, Carmen Silvia BentivoglioINFLUÊNCIA DA TAXA DE DOSE E DA VELOCIDADE DE PROCESSO NA CURA DE REVESTIMENTOS POR RADIAÇÃO UV/EBFile: E11_532.pdf

Ruiz, MiriamRADIOINMUNOENSAYO PARA PROGESTERONA EN LECHE BOVINAFile: E08_250.pdfIMMUNORADIOMETRIC ASSAY FOR QUANTIFICATION OF PROSTATE-SPECIFIC ANTIGEN (PSA)File: E09_068.pdf

Rzyski, Barbara M.DOSIMETRY WITH RADIOCHROMIC MATERIALS IN ACCELERATED ELECTRONS FIELDS – HIGH DOSE PROCESSESFile: E01_512.pdf

Saad, Antonio RobertoDISTRIBUIÇÃO DA RADIOATIVIDADE NATURAL NA FORMAÇÃO IRATÍ NA REGIÃO DE LIMEIRA, SPFile: E03_681.pdf

Sabato, Susy FreyESTUDO DOS COMPORTAMENTOS REOLÓGICOS DAS DISPERSÕES IRRADIADAS DOS CASEINATOS DE CÁLCIO E DESÓDIOFile: E08_128.pdf

Sabino, Claudia de Vilhena SchayerESTUDO ARQUEOMÉTRICO DE CERÂMICAS DO AMAZONASFile: E02_197.pdfDETERMINAÇÃO DE Ca, Cr, Cu, Fe, K, Mg, Na E Zn EM PLANTAS MEDICINAIS BRASILEIRAS POR ATIVAÇÃO NEUTRÔNICAE ABSORÇÃO ATÔMICAFile: E02_206.pdfDETERMINAÇÃO DOS PARÂMETROS NUCLEARES a, f E TEMPERATURA DE NÊUTRONS NO REATOR TRIGA MARK I IPRR1.File: E02_365.pdf

Sabio, ManuelVALIDATION PROCEDURE FOR THE FABRICATION SEQUENCE OF SELF-POWERED NEUTRON DETECTORS FOR NPPDEVELOPED BY CNEAFile: E04_719.pdf

Sacramento, Arivaldo Morais doESTIMATIVA DE DISTÂNCIA FINAL DE PERIGO EM RAZÃO DE LIBERAÇÕES ACIDENTAIS DE SUBSTÂNCIAS TÓXICAS NAATMOSFERAFile: E13_078.pdf

Saddadi, FaribaDOUBLED-PHASE Tc99m SESTAMIBI IMAGING IN LOCALIZATION OF ABNORMAL PARATHYROID GLANDSFile: E07_074.pdf



inac2002VI ENAN

Authors


Saiki, MitikoDETERMINAÇÃO DE ELEMENTOS TÓXICOS EM MATERIAIS PLÁSTICOS METALIZADOSFile: E02_454.pdfDETERMINAÇÃO DE ELEMENTOS TRAÇO NOS FITOFÁRMACOS GINSENG E GINKGO BILOBAFile: E02_465.pdfDETERMINAÇÃO DE ELEMENTOS TRAÇO EM TECIDO ÓSSEO HUMANO PELO MÉTODO DE ATIVAÇÃO COM NÊUTRONSFile: E02_481.pdfDETERMINAÇÃO DE ELEMENTOS TRAÇO EM MATERIAIS DE REFERÊNCIA DE SILÍCIO E FERRO-SILÍCIO PELO MÉTODOINSTRUMENTAL DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONSFile: E02_504.pdfCHARACTERIZATION OF CORROSION PRODUCTS FROM Nd-Fe-B MAGNETS USED IN DENTAL PHOSTHESESFile: E02_656.pdfAVALIAÇÃO DA INFLUÊNCIA DAS PROPRIEDADES E GEOMETRIA DA AMOSTRA EM ESPECTROMETRIA DE RAIOS GAMAFile: E02_668.pdfANÁLISE POR ATIVAÇÃO COM NÊUTRONS DA PLANTA TRADESCANTIA PALLIDA PARA USO NA MONITORAÇÃO DEPOLUENTES ATMOSFÉRICOSFile: E03_461.pdfANÁLISE DE ESPÉCIES DE LIQUENS EPIFÍTICOS PARA USO NA BIOMONITORAÇÃO DE POLUENTES ATMOSFÉRICOSFile: E03_475.pdfAVALIAÇÃO DA PERDA DENTAL HUMANA COM O USO DO CLAREADOR PERÓXIDO DE CARBAMIDA COMPARADO AOCONDICIONAMENTO COM ÁCIDO FOSFÓRICO - MÉTODO RADIOMÉTRICOFile: E07_369.pdfTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Saito, Roberto TatsuyaINGESTÃO DE 210Pb E 210Po PELO CONSUMO DE PEIXES NO SISTEMA CANANÉIA-IGUAPE, SÃO PAULO, BRASILFile: E03_476.pdfNÍVEIS DE 210Pb E 210Po EM ÁGUAS DOS CANAIS DO SISTEMA COSTEIRO CANANÉIA-IGUAPE (SÃO PAULO, BRASIL)File: E03_477.pdf

Sakagami, Maureen K.ESTUDO DA RADIODEGRADAÇÃO DOS COMPOSTOS ORGÂNICOS ODORÍFICOS GEOSMINA E METILISOBORNIOLPRESENTES EM ÁGUA DO SISTEMA GUARAPIRANGAFile: E03_760.pdf

Salas, Humberto TerrazasOCORRÊNCIA DE MINERAIS RADIOATIVOS EM ROCHAS GRANÍTICAS ORNAMENTAISFile: E11_175.pdf

Saldiva, Paulo H. N.DETERMINAÇÃO DE ELEMENTOS TRAÇO EM TECIDO ÓSSEO HUMANO PELO MÉTODO DE ATIVAÇÃO COM NÊUTRONSFile: E02_481.pdfANÁLISE POR ATIVAÇÃO COM NÊUTRONS DA PLANTA TRADESCANTIA PALLIDA PARA USO NA MONITORAÇÃO DEPOLUENTES ATMOSFÉRICOSFile: E03_461.pdf

Salvador, Marcos JoséANÁLISE ELEMENTAR DE Alternanthera maritima E Blutaparon portulacoides (GOMPHRENEAE, AMARANTHACEAE) PORFLUORESCÊNCIA DE RAIOS XFile: E03_198.pdf



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Authors


Salvador, Vera L. R.DETERMINAÇÃO DO GRAU DE REMOÇÃO DE METAIS TÓXICOS COMO As, Hg, Pb e Cd EM SOLUÇÃO SIMULADA DEEFLUENTES INDUSTRIAIS NA PRESENÇA DE “SCAVENGERS” APÓS A IRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E02_167.pdfANÁLISE QUANTITATIVA DE SOLO POR ESPECTROMETRIA DE FLUORESCÊNCIA DE RAIOS X (WDXRFS)File: E02_259.pdfAPLICAÇÃO DA FLUORESCÊNCIA DE RAIOS X (WDXRFS) PARA A DETERMINAÇÃO DA ESPESSURA DE FILMES FINOSFile: E02_289.pdfAPLICAÇÃO DAS TÉCNICAS DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONS E FLUORESCÊNCIA DE RAIOS X EM AMOSTRADE FÍGADO BOVINOFile: E02_527.pdfANÁLISE QUANTITATIVA DE COMPÓSITO DE ALUMÍNIO REFORÇADO COM CARBETO DE SILÍCIO PELA TÉCNICA DEFLUORESCÊNCIA DE RAIOS X E RADIAÇÃO INFRAVERMELHAFile: E02_762.pdf

Samad, Ricardo E.APLICAÇÃO DA FLUORESCÊNCIA DE RAIOS X (WDXRFS) PARA A DETERMINAÇÃO DA ESPESSURA DE FILMES FINOSFile: E02_289.pdf

Sampa, Maria Helena de OliveiraDETERMINAÇÃO DO GRAU DE REMOÇÃO DE METAIS TÓXICOS COMO As, Hg, Pb e Cd EM SOLUÇÃO SIMULADA DEEFLUENTES INDUSTRIAIS NA PRESENÇA DE “SCAVENGERS” APÓS A IRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E02_167.pdfRADIAÇÕES IONIZANTES E O REUSO DAS ÁGUASFile: E03_713.pdfREDUÇÃO DA TOXICIDADE DE SURFACTANTE SUBMETIDO À IRRADIAÇÃO COM FEIXE DE ELÉTRONS. RESULTADOSPRELIMINARESFile: E03_714.pdfINFLUÊNCIA DA PRESENÇA DE METAIS NA EFICIÊNCIA DE DEGRADAÇÃO DE COMPOSTOS ORGÂNICOS PELAIRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E03_717.pdfESTUDO DA RADIODEGRADAÇÃO DOS COMPOSTOS ORGÂNICOS ODORÍFICOS GEOSMINA E METILISOBORNIOLPRESENTES EM ÁGUA DO SISTEMA GUARAPIRANGAFile: E03_760.pdf

Samper, RosaFABRICATION, QUALIFICATION AND CALIBRATION OF 60Co SEALED SOURCESFile: E06_774.pdf

Sampieri, FrançoisPURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVEPROBEFile: E07_652.pdf

Sanches, M.IMPLEMENTAÇÃO DO SISTEMA DA QUALIDADE NO LABORATÓRIO DE RADIOTOXICOLOGIA DO IPENFile: E01_213.pdf

Sanchez, AndreaMODELAGEM DE OLHO HUMANO PARA PROJETO DE SIMULADORES OFTÁLMICOS PARA APLICAÇÕES CLÍNICASFile: E07_354.pdf



inac2002VI ENAN

Authors


Santos, Adimir dosMODELAGEM DE OLHO HUMANO PARA PROJETO DE SIMULADORES OFTÁLMICOS PARA APLICAÇÕES CLÍNICASFile: E07_354.pdf

Santos, Balbino L. dosAVALIAÇÃO DA CONTAMINAÇÃO POR METAIS ASSOCIADA AO DESPEJO DE CHORUME NO RIO CURURUPE-ILHÉUS-BAUTILIZANDO K0-INAA E ICP-MSFile: E03_146.pdf

Santos, Bruno ZolotareffPREPARAÇÃO DE NANOPARTÍCULAS MAGNÉTICAS SILANIZADAS PARA UTILIZAÇÃO EM TÉCNICAS DE SEPARAÇÃOMAGNÉTICAFile: E11_346.pdf

Santos, Cecilia MartinsINFLUÊNCIA DA ENERGIA DO PADRÃO DE CALIBRAÇÃO NA EFICIÊNCIA DE UM DETECTOR PROPORCIONAL PARACONTAGEM ALFA E BETA TOTAL EM AMOSTRAS DE ÁGUA.File: E04_234.pdf

Santos, Eliane Eugênia dosAVALIAÇÃO DA EXPOSIÇÃO INTERNA A K-40 DOS RESIDENTES DA CIDADE DO RIO DE JANEIROFile: E01_618.pdf

Santos, Gelson Pinto dosDESENVOLVIMENTO DE UM SISTEMA DE DOSIMETRIA POR DIODO PARA O CONTROLE DA QUALIDADE DE UNIDADESDE TELETERAPIAFile: E01_680.pdf

Santos, Gonçalo Rodrigues dosPHASE MIXTURE COEXISTING IN ALPHA IMPLANTED YBaCuO COMPOUND PROBED BY POSITRONS ANNIHILATIONFile: E02_057.pdf

Santos, José Cesar Rodrigues dosPHASE MIXTURE COEXISTING IN ALPHA IMPLANTED YBaCuO COMPOUND PROBED BY POSITRONS ANNIHILATIONFile: E02_057.pdf

Santos, Joyra A.INTERCOMPARAÇÃO DAS MEDIÇÕES DE ATIVIDADE DO 67Ga EM SERVIÇOS DE MEDICINA NUCLEAR BRASILEIROSFile: E07_113.pdf

Santos, Luiz Antonio Pereira dosUSO DE FOTOTRANSISTORES PARA MEDIDA DAS CARACTERÍSTICAS DOSIMÉTRICAS DE FEIXES DE RAIOS-X UTILIZADOSEM RADIOCIRURGIA ESTEREOTÁXICAFile: E01_578.pdfPHOTOTRANSISTOR: A DETECTOR FOR X-RAY BEAM DOSIMETRYFile: E04_424.pdfCQL: UM PROGRAMA COMPUTACIONAL PARA AVALIAÇÃO DE INCERTEZAS E CONTROLE DE QUALIDADE EMLABORATÓRIOS METROLÓGICOSFile: E04_425.pdf



inac2002VI ENAN

Authors


Santos, Marcelo Damy de SouzaUTILIZAÇÃO DE DIODOS DE Si PARA ESPECTROMETRIA ALFAFile: E04_439.pdfDETECÇÃO E ESPECTROMETRIA DE ELÉTRONS DE CONVERSÃO INTERNA E PARTÍCULAS BETA COM DIODOS DE SIFile: E04_440.pdf

Santos, MaristelaCHARACTERIZATION OF MONAZITE DUST PARTICLESFile: E02_721.pdf

Santos, Paulo de OliveiraCOMPACTAÇÃO DE REJEITOS RADIOATIVOS SÓLIDOSFile: E05_436.pdf

Santos, Raquel Gouvea dosPURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVEPROBEFile: E07_652.pdf

Santos, Rosana Nunes dosESTUDO DO DESEQUILÍBRIO RADIOATIVO EM ROCHAS VULCÂNICAS DO MONTE CAMEROON (REPÚBLICA DOSCAMARÕES - ÁFRICA)File: E03_519.pdf

Santos, Teresa Cristina dosRESPOSTAS DE TRADESCANTIA A UMA SIMULAÇÃO DE AUMENTO DA RADIOATIVIDADE NATURALFile: E09_060.pdf

Santos, Walter MenezesUSO DE FOTOTRANSISTORES PARA MEDIDA DAS CARACTERÍSTICAS DOSIMÉTRICAS DE FEIXES DE RAIOS-X UTILIZADOSEM RADIOCIRURGIA ESTEREOTÁXICAFile: E01_578.pdfPHOTOTRANSISTOR: A DETECTOR FOR X-RAY BEAM DOSIMETRYFile: E04_424.pdf

Santos Filho, Sebastião DavidASSESSMENT OF THE EFFECT OF MENTHA CRISPA L. (HORTELÃ) EXTRACT ON THE LABELING OF RED BLOOD CELLSAND PLASMA PROTEINS WITH TECHNETIUM-99MFile: E07_041.pdf

Saraiva, Elisabete de Santis Braga eAPLICAÇÃO DE 222Rn COMO TRAÇADOR DA DESCARGA DE ÁGUAS SUBTERRÂNEAS NA REGIÃO COSTEIRA DE UBATUBA,SÃO PAULOFile: E03_624.pdf

Sarkis, Jorge Eduardo de SouzaPRODUÇÃO DE LANTÂNIO DE ALTA PUREZA PARA APLICAÇÃO EM P&DFile: E11_173.pdf



inac2002VI ENAN

Authors


Sarma, V. V.PRELIMINARY STUDIES CONCERNING SGD IN INDIAN COASTAL REGIONS USING 228RADIUM AND 226RADIUMFile: E03_906.pdf

Sarries, Gabriel AdrianCOMPOSIÇÃO QUÍMICA DE SOLO E BIOSSÓLIDO PELA TÉCNICA DE FLUORESCÊNCIA DE RAIOS XFile: E02_299.pdf

Sartoratto, Bárbara Eliodora LeiteTRITIUM CONCENTRATION ANALYSIS IN ENVIRONMENTAL WATER SAMPLES OF CENTRO NUCLEAR ARAMARFile: E03_026.pdf

Sartoratto, MarceloTRITIUM CONCENTRATION ANALYSIS IN ENVIRONMENTAL WATER SAMPLES OF CENTRO NUCLEAR ARAMARFile: E03_026.pdf

Sasaki, José MarcosESTUDO DA INFLUÊNCIA DA RAZÃO OH/F NA RESPOSTA TERMOLUMINESCENTE DO TOPÁZIOFile: E11_286.pdf

Sassine, AndréANÁLISE QUANTITATIVA DE COMPÓSITO DE ALUMÍNIO REFORÇADO COM CARBETO DE SILÍCIO PELA TÉCNICA DEFLUORESCÊNCIA DE RAIOS X E RADIAÇÃO INFRAVERMELHAFile: E02_762.pdf

Sato, Ivone MulakoDETERMINAÇÃO DO GRAU DE REMOÇÃO DE METAIS TÓXICOS COMO As, Hg, Pb e Cd EM SOLUÇÃO SIMULADA DEEFLUENTES INDUSTRIAIS NA PRESENÇA DE “SCAVENGERS” APÓS A IRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E02_167.pdfAPLICAÇÃO DAS TÉCNICAS DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONS E FLUORESCÊNCIA DE RAIOS X EM AMOSTRADE FÍGADO BOVINOFile: E02_527.pdfINFLUÊNCIA DA PRESENÇA DE METAIS NA EFICIÊNCIA DE DEGRADAÇÃO DE COMPOSTOS ORGÂNICOS PELAIRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E03_717.pdf

Scapin, Marcos A.ANÁLISE QUANTITATIVA DE SOLO POR ESPECTROMETRIA DE FLUORESCÊNCIA DE RAIOS X (WDXRFS)File: E02_259.pdfAPLICAÇÃO DA FLUORESCÊNCIA DE RAIOS X (WDXRFS) PARA A DETERMINAÇÃO DA ESPESSURA DE FILMES FINOSFile: E02_289.pdfANÁLISE QUANTITATIVA DE COMPÓSITO DE ALUMÍNIO REFORÇADO COM CARBETO DE SILÍCIO PELA TÉCNICA DEFLUORESCÊNCIA DE RAIOS X E RADIAÇÃO INFRAVERMELHAFile: E02_762.pdf

Scapin, Valdirene O.ANÁLISE QUANTITATIVA DE SOLO POR ESPECTROMETRIA DE FLUORESCÊNCIA DE RAIOS X (WDXRFS)File: E02_259.pdfAPLICAÇÃO DA FLUORESCÊNCIA DE RAIOS X (WDXRFS) PARA A DETERMINAÇÃO DA ESPESSURA DE FILMES FINOSFile: E02_289.pdf

Scheibel, VivianeMEDIDA DE TRAÇOS RADIOATIVOS EM ALIMENTOS DE EXPORTAÇÃO DO PARANÁFile: E03_150.pdf



inac2002VI ENAN

Authors


Schor, PauloAPLICAÇÃO DA TERMOLUMINESCÊNCIA FOTOESTIMULADA NA ÁREA OFTALMOLÓGICA USANDO-SE CaSO4:DyFile: E01_452.pdf

Sciani, ValdirSISTEMA PARA AVALIAÇÃO, EM TEMPO REAL, DA HOMOGENEIDADE DO FEIXE EXTERNO DO CÍCLOTRON CYCLONE 30DO IPEN/CNEN-SPFile: E07_704.pdfSYNTHESIS AND QUALITY CONTROL OF 18F-FDG AT IPEN-CNEN/SPFile: E07_712.pdf

Seagar, MichaelPURIFICATION OF A NEUROTOXIN FROM THE VENOM OF THE “ARMED SPIDER” AND SYNTHESIS OF A RADIOACTIVEPROBEFile: E07_652.pdf

Seda, Rosângela Pinto GuimarãesEVOLUÇÃO DA MONITORAÇÃO AMBIENTAL COM TLD NO IRDFile: E01_534.pdfMONITORAÇÃO INDIVIDUAL DE EXTREMIDADES: 30 ANOS DE EXPERIÊNCIAFile: E01_565.pdfMONITORAÇÃO INDIVIDUAL DE NÊUTRONS: 18 ANOS DE EXPERIÊNCIAFile: E01_566.pdf

Semmler, RenatoESPECTROSCOPIA GAMA NOS NÍVEIS EXCITADOS DE 155EuFile: E10_374.pdfESTUDO DO EQUILÍBRIO ELETRÔNICO NO ALUMÍNIO UTILIZANDO O DOSÍMETRO TERMOLUMINESCENTE DE CaSO4:DyFile: E01_316.pdf

Seneda, José A.PRODUÇÃO DE LANTÂNIO DE ALTA PUREZA PARA APLICAÇÃO EM P&DFile: E11_173.pdf

Senne Jr., MurilloMODELOS PARA ANÁLISE DE CONSEQÜÊNCIA DE ACIDENTES APLICADOS AOS PROCESSOS DE LICENCIAMENTO DEINSTALAÇÕES NUCLEARES, RADIATIVAS E INDUSTRIAIS CONVENCIONAISFile: E13_039.pdfMETODOLOGIA PARA AVALIAÇÃO DE RISCOS DE INSTALAÇÕES NUCLEARESFile: E13_075.pdfESTIMATIVA DE DISTÂNCIA FINAL DE PERIGO EM RAZÃO DE LIBERAÇÕES ACIDENTAIS DE SUBSTÂNCIAS TÓXICAS NAATMOSFERAFile: E13_078.pdf

Shafiee, AbbasPRODUCTION OF SELENIUM-75 AND RADIOSYNTHESIS OF [75Se]-4-ETHOXYCARBONYL-5-METHYL-1,2,3-SELENADIAZOLEFile: E07_065.pdf

Shtejer, KatherinNEUTRON FLUX DISTRIBUTION IN AN Am-Be NEUTRON IRRADIATORFile: E04_288.pdf



inac2002VI ENAN

Authors


Shu, JaneCERTIFICAÇÃO DO ATENDIMENTO AOS REQUISITOS DE SEGURANÇA E RADIOPROTEÇÃO PELAS INSTALAÇÕESNUCLEARES E RADIATIVAS DA CNENFile: E13_738.pdf

Sígolo, Joel BarbujianiAPLICAÇÃO DA NAA NO ESTUDO DO COMPORTAMENTO GEOQUÍMICO DE ELEMENTOS DE INTERESSE EM SEDIMENTOSLACUSTRES DE UMA ESTAÇÃO DE TRATAMENTO DE ESGOTOFile: E02_371.pdfDISTRIBUIÇÃO DE ELEMENTOS METÁLICOS EM SEDIMENTOS DE DRENAGENS DO PARQUE ESTADUAL DA ILHA ANCHIETA- SPFile: E02_463.pdf

Silva, Ademir Xavier daDEPENDÊNCIA ANGULAR DE DOSÍMETROS TERMOLUMINESCENTES UTILIZADOS EM TOMOGRAFIA COMPUTADORIZADAFile: E01_111.pdfCÁLCULO DOS FATORES DE CONVERSÃO DE KERMA NO AR PARA EQUIVALENTE DE DOSE AMBIENTAL PARA FEIXEMONOENERGÉTICO DE FÓTONS ENTRE 0,01 MeV e 50 MeVFile: E01_134.pdfVERIFICAÇÃO DA VIABILIDADE DA DETECÇÃO DE VIRIONS, ATRAVÉS DA ANÁLISE POR ATIVAÇÃO COM NÊUTRONSFile: E10_011.pdf

Silva, Aucyone Augusto daIMPLANTAÇÃO DE MÉTODOS DE ENSINO À DISTÂNCIA PARA USO EM INSTITUTOS DE PESQUISAS TECNOLÓGICASUTILIZANDO COMO MEIO À INTERNETFile: E14_161.pdf

Silva, Carlos Borges daMEDIDA DA CAPTAÇÃO DE IODO PELA TIREÓIDE: ANÁLISE COMPARATIVA ENTRE SISTEMA GAMA-CÂMARA COMCOLIMADOR “PINHOLE” E SISTEMA 13S002File: E04_040.pdf

Silva, Cleide Moreira daDETERMINAÇÃO DA CONCENTRAÇÃO TOTAL DE TERRAS RARAS EM ÓXIDO DE URÂNIO-GADOLÍNIO POR GRAVIMETRIA,COM SEPARAÇÃO PRÉVIA DO URÂNIOFile: E11_904.pdf

Silva, Constância Pagano Gonçalves daMARCAÇÃO DO PEPTÍDEO INTESTINAL VASOATIVO (VIP) COM IODO-131 POR MÉTODO DIRETOFile: E07_633.pdfANÁLISE DA IMUNORREATIVIDADE DO ANTICORPO MONOCLONAL ANTI-CEA IOR-1 MARCADO COM 99mTcFile: E07_705.pdfSYNTHESIS AND QUALITY CONTROL OF 18F-FDG AT IPEN-CNEN/SPFile: E07_712.pdf

Silva, Cosme Norival Mello daCÁLCULO DE MONTE CARLO DA CONSTANTE DE TAXA DE DOSE NA ÁGUA PARA A SEMENTE DE 192IrFile: E01_644.pdf



inac2002VI ENAN

Authors


Silva, Eder F.ESTUDO EXPERIMENTAL DO TEMPO DE RESIDÊNCIA DE PARTÍCULAS EM SECADOR ‘SPRAY’File: E06_229.pdfOBTENÇÃO DE CLORETO DE TERRAS RARAS ANIDRO EM LEITO FLUIDIZADOFile: E11_531.pdf

Silva, Edir Nepomuceno daEVALUATION OF THE 2-THIOBARBITURIC ACID METHOD FOR THE MEASUREMENT OF LIPID OXIDATION IN MECHANICALLYDEBONED GAMMA IRRADIATED CHICKEN MEATFile: E08_400.pdf

Silva, Eliane Magalhães Pereira daPROPOSAL OF METHODOLOGY TO SELECT BINDERS FOR HAZARDOUS WASTES STABILIZATION (PROPOSTA DEMETODOLOGIA PARA A SELEÇÃO DE MATRIZES PARA A ESTABILIZAÇÃO DE RESÍDUOS PERIGOSOS)File: E05_348.pdfCHEMICAL TREATMENT OF LOW-LEVEL LIQUID WASTE – A CASE STUDY (TRATAMENTO QUÍMICO DE REJEITOS LÍQUIDOSDE BAIXA ATIVIDADE – CASO EXEMPLO)File: E05_620.pdf

Silva, Erik Gonçalves Holder daINFLUÊNCIA DA RADIAÇÃO GAMA NO VALOR DA CONSTANTE DE SCHULZ-BLASCHKEFile: E11_645.pdf

Silva, FábioESTADO ATUAL DO SISTEMA DE INFORMAÇÕES SOBRE FONTES SELADAS FORA DE USO NO CDTNFile: E05_478.pdf

Silva, Iran José Oliveira daDESENVOLVIMENTO DE UMA SONDA DE NÊUTRONS PARA MEDIDA DE UMIDADE DE SOLO UTILIZANDO UM DETECTORDE 6LiI(Eu)File: E04_247.pdf

Silva, Isabel R.DETERMINAÇÃO DE Ca, Cr, Cu, Fe, K, Mg, Na E Zn EM PLANTAS MEDICINAIS BRASILEIRAS POR ATIVAÇÃO NEUTRÔNICAE ABSORÇÃO ATÔMICAFile: E02_206.pdf

Silva, Ivandro de França daEVAPORAÇÃO DA ÁGUA DE UM SOLO SEM VEGETAÇÃO NO BREJO PARAIBANOFile: E08_391.pdf

Silva, Josenilda Maria daANÁLISE VISUAL DOS EFEITOS DA RADIAÇÃO GAMA ASSOCIADA À ATMOSFERA MODIFICADA NO ARMAZENAMENTO DOLIMÃO ‘TAHITI’ – ENSAIO PRELIMINARFile: E08_303.pdf

Silva, Luciana MariaDETECÇÃO DE ABERRAÇÕES CROMOSSÔMICAS EM LINHAGEM TUMORAL APÓS IRRADIAÇÃOFile: E09_902.pdf



inac2002VI ENAN

Authors


Silva, Luzeli Moreira daMEDIDA DA POROSIDADE NO SOLO TRe (Terra Roxa Estruturada) UTILIZANDO A TÉCNICA DE TRANSMISSÃO DE RAIOS GAMAFile: E08_320.pdf

Silva, Márcia Augusta daANÁLISE CITOGENÉTICA DO 153Sm-EDTMP EM LINFÓCITOS PERIFÉRICOS DE PACIENTES COM CÂNCER ÓSSEOMETASTÁTICOFile: E07_245.pdf

Silva, Maria Isabel Barbosa daESTUDO DOS PROCEDIMENTOS DE PROTEÇÃO RADIOLÓGICA E GERENCIAMENTO DE REJEITOS RADIOATIVOS EMLABORATÓRIOS DE RADIOFARMÁCIAFile: E01_037.pdfANÁLISE DOS RESULTADOS DA MONITORAÇÃO DE ÁREA REALIZADA DURANTE O PROCESSO DE PRODUÇÃO DO IODO123 NO INSTITUTO DE ENGENHARIA NUCLEARFile: E01_038.pdf

Silva, Mário R. de S.AVALIAÇÃO DA CONTAMINAÇÃO POR METAIS ASSOCIADA AO DESPEJO DE CHORUME NO RIO CURURUPE-ILHÉUS-BAUTILIZANDO K0-INAA E ICP-MSFile: E03_146.pdf

Silva, Mary Lucia daCOMPARATIVE MEASUREMENTS OF GROWTH RINGS IN TREES USING A MICROSCOPIC METHOD AND DIGITAL X- RAYDENSITY IMAGESFile: E03_157.pdf

Silva, Mônica Aguiar Leobino daEVALUATION OF THE HALF-LIVES FOR DIFFERENT NUCLIDES BY MEANS OF GAMMA-RAY SPECTROMETRYFile: E07_240.pdf

Silva, Nestor Conceição daESTÁGIO ATUAL DO PROJETO DE PREPARO DO GEL DE MOLIBDATO DE ZIRCÔNIO PARA USO NOS GERADORES DE99Mo/99mTcFile: E07_268.pdf

Silva, Nivaldo Carlos daFATORES DE TRANSLOCAÇÃO DE 60CO, 90SR E 137CS EM BATATEIRA E MILHEIRO.File: E01_580.pdfDETERMINAÇÃO DE ISÓTOPOS EMISSORES ALFA DE AMERÍCIO EM AMOSTRAS DE URINA E FEZESFile: E02_547.pdfMIGRATION OF 226 Ra, 228 Ra, 210Pb, U AND Th FROM PHOSPHOGYPSUMFile: E03_509.pdfPREDICTION OF Rn-222 EXHALATION RATES FROM PHOSPHOGYPSUM-BASED EMBANKMENTS. PART I: PHYSICAL-MATHEMATICAL MODELINGFile: E03_557.pdfPREDICTION OF Rn-222 EXHALATION RATES FROM PHOSPHOGYPSUM-BASED EMBANKMENTS. PART II: NUMERICALSIMULATION AND RESULTSFile: E03_558.pdfDETERMINAÇÃO DOS PARÂMETROS NECESSÁRISOS PARA AVALIAÇÃO DO IMPACTO AMBIENTAL DECORRENTE DAUTILIZAÇÃO DO FOSFOGESSOFile: E03_574.pdf



inac2002VI ENAN

Authors


Silva, Paulo Sergio Cardoso daDISTRIBUIÇÃO VERTICAL DE ELEMENTOS MENORES E TRAÇOS POR ANÁLISE POR ATIVAÇÃO NEUTRÔNICAINSTRUMENTAL NOS SEDIMENTOS DO ESTUÁRIO DE SANTOS E SÃO VICENTE, SÃO PAULO, BRASILFile: E03_294.pdf

Silva, Richard Maximiliano da Cunha eCARACTERIZAÇÃO QUÍMICA DE FRAGMENTOS CERÂMICOS ARQUEOLÓGICOS POR MICROFLUORESCÊNCIA DE RAIOSX (µ-XRF)File: E02_033.pdfFLUORESCÊNCIA DE RAIOS X POR REFLEXÃO TOTAL APLICADA À ANÁLISE DE ELEMENTOS QUÍMICOS EM CHÁ DEERVA-MATE (Ilex paraguariensis)File: E02_208.pdf

Silva, Rosemary E. daDOSIMETRY WITH RADIOCHROMIC MATERIALS IN ACCELERATED ELECTRONS FIELDS – HIGH DOSE PROCESSESFile: E01_512.pdf

Silva, Tânia Valéria daIMOBILIZAÇÃO DE RESINAS DE TROCA-IÔNICA EM BETUMEFile: E05_429.pdfCHEMICAL TREATMENT OF LOW-LEVEL LIQUID WASTE – A CASE STUDY (TRATAMENTO QUÍMICO DE REJEITOS LÍQUIDOSDE BAIXA ATIVIDADE – CASO EXEMPLO)File: E05_620.pdfANGRA 2 – QUALIFICAÇÃO DO PRODUTO DE REJEITO BETUMINIZADOFile: E05_686.pdf

Silva, Teógenes Augusto daCARACTERIZAÇÃO E CALIBRAÇÃO DE DOSÍMETROS DE EXTREMIDADE PARA FEIXES DE RADIAÇÃO BETA EM TERMOSDO EQUIVALENTE DE DOSE PESSOALFile: E01_085.pdfPROTEÇÃO RADIOLÓGICA EM CLÍNICAS ODONTOLÓGICAS: EXEMPLO DE METODOLOGIA DE INSPEÇÃOFile: E01_296.pdfATENDIMENTOS ÀS EMERGÊNCIAS RADIOLÓGICAS NO ESTADO DE MINAS GERAISFile: E01_298.pdfREQUISITOS DE PROTEÇÃO RADIOLÓGICA EM CLÍNICAS ODONTOLÓGICASFile: E01_739.pdfFATORES DE RETRO-ESPALHAMENTO PARA FEIXES DE RAIOS-X DIAGNÓSTICO MÉDICOFile: E07_186.pdfPROTEÇÃO RADIOLÓGICA EM RADIODIAGNÓSTICO ODONTOLÓGICO EM MINAS GERAISFile: E07_412.pdf

Silva, Teresinha de Moraes daTRANSPORTE DE NITRATO DE TÓRIO PARA FIRMAS EXTERNAS AO IPEN-CNEN/SPFile: E01_265.pdfDESCONTAMINAÇÃO DE SUPERFÍCIES NA USINA DE URÂNIO METÁLICO DA DIVISÃO DE PROCESSOS METALÚRGICOSIPEN/CNEN-SPFile: E01_489.pdf

Silva, Valdir Cosmos daDETERMINAÇÃO DE TEMPO DE RESIDÊNCIA MÉDIO -TRM - EM UM DIGESTOR ANAERÓBIO DA ESTAÇÃO DE TRATAMENTODE ESGOTOS DE BARUERI COM UTILIZAÇÃO DE TRAÇADOR RADIOATIVOFile: E06_138.pdfCARACTERIZAÇÃO DO ESCOAMENTO HIDRÁULICO NOS TANQUES DE AERAÇÃO DA ESTAÇÃO DE TRATAMENTO DEESGOTO SUZANO, UTILIZANDO-SE TRAÇADOR RADIOATIVOFile: E06_415.pdf



inac2002VI ENAN

Authors


Silva Júnior, Eronides Felisberto daEVALUATION OF POLYANILINE NANOFILM’S RESPONSE FOR 60 Co BEAMSFile: E01_423.pdfUSO DE FOTOTRANSISTORES PARA MEDIDA DAS CARACTERÍSTICAS DOSIMÉTRICAS DE FEIXES DE RAIOS-X UTILIZADOSEM RADIOCIRURGIA ESTEREOTÁXICAFile: E01_578.pdfPHOTOTRANSISTOR: A DETECTOR FOR X-RAY BEAM DOSIMETRYFile: E04_424.pdf

Silveira, Carlos Gaia daRADIAÇÕES IONIZANTES E O REUSO DAS ÁGUASFile: E03_713.pdfINFLUÊNCIA DA PRESENÇA DE METAIS NA EFICIÊNCIA DE DEGRADAÇÃO DE COMPOSTOS ORGÂNICOS PELAIRRADIAÇÃO COM FEIXE DE ELÉTRONSFile: E03_717.pdf

Silveira, Catarina R.ESTUDO EXPERIMENTAL DO TEMPO DE RESIDÊNCIA DE PARTÍCULAS EM SECADOR ‘SPRAY’File: E06_229.pdfOBTENÇÃO DE CLORETO DE TERRAS RARAS ANIDRO EM LEITO FLUIDIZADOFile: E11_531.pdf

Silveira, Maria de Fátima GaldinoACTION OF PHYLLANTHUS NIRURI ON THE HORMONES OF PREGNANT FEMALE RATSFile: E09_239.pdfRADIOIMUNOENSAIO PARA DETERMINAÇÃO DO HORMÔNIO TIREOIDEANO NA PROLE DE RATAS HIPOTIREOIDEAS EHIPERTIREOIDEASFile: E09_312.pdf

Silveira, Renata Ramos daCQL: UM PROGRAMA COMPUTACIONAL PARA AVALIAÇÃO DE INCERTEZAS E CONTROLE DE QUALIDADE EMLABORATÓRIOS METROLÓGICOSFile: E04_425.pdf

Silvério, Patrícia F.DATAÇÃO DE SEDIMENTOS DO RESERVATÓRIO DE BARRA BONITA, RIO TIETÊ, SP COM 210Pb : DISTRIBUIÇÃO HISTÓRICADE METAIS PESADOSFile: E03_702.pdf

Simão, Kelly CristinaESTUDOS PRELIMINARES DAS PROPRIEDADES DOSIMÉTRICAS DO CASO4:MN PELA TÉCNICA ESPECTROSCÓPICA DERPEFile: E01_632.pdf

Simón, Maria JosefaDATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANAFile: E03_072.pdf



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Authors


Siqueira, Onofre S.ANÁLISE DE ESPÉCIES DE LIQUENS EPIFÍTICOS PARA USO NA BIOMONITORAÇÃO DE POLUENTES ATMOSFÉRICOSFile: E03_475.pdf

Smolders, Erik Eduard ThomasEFEITO DO pH NA ADSORÇÃO DE RADIOCÉSIO EM SOLOS TROPICAISFile: E08_125.pdf

Soares, Adalberto JoséUTILIZAÇÃO DE CINTILADORES PLÁSTICOS EM SISTEMAS DE DETECÇÃO SENSÍVEIS À POSIÇÃOFile: E04_747.pdf

Soares, Eufemia PaezDETERMINAÇÃO DE ELEMENTOS TÓXICOS EM MATERIAIS PLÁSTICOS METALIZADOSFile: E02_454.pdf

Sobrinho, Gilmar A .TOTAL AND AVAILABLE METAL CONTENTS IN SEDIMENTS BY SYNCHROTRON RADIATION TOTAL REFLECTION X-RAYFLUORESCENCEFile: E02_343.pdf

Solci, Maria CristinaAPLICAÇÃO DA FLUORESCÊNCIA DE RAIO X NA DETERMINAÇÃO DE COMPONENTES INSOLÚVEIS NAS ÁGUAS DEPRECIPITAÇÃO EM REGIÃO CONTINENTAL SUBTROPICALFile: E03_541.pdf

Solimanian, A.DESIGN, CONSTRUCTION AND CALIBRATION OF PLANE-PARALLEL IONIZATION CHAMBERS AT THE SSDL OF IRANFile: E01_079.pdf

Solis, JosePRODUCCIÓN DE CENTROS DE COLOR EN EL TOPACIO NATURAL IRRADIADO CON NEUTRONES EN EL NÚCLEO DELREACTOR PERUANO RP-10File: E06_397.pdf

Somayajulu, B. L. K.PRELIMINARY STUDIES CONCERNING SGD IN INDIAN COASTAL REGIONS USING 228RADIUM AND 226RADIUMFile: E03_906.pdf

Somessari, Elizabeth S.ESTUDO DA RADIODEGRADAÇÃO DOS COMPOSTOS ORGÂNICOS ODORÍFICOS GEOSMINA E METILISOBORNIOLPRESENTES EM ÁGUA DO SISTEMA GUARAPIRANGAFile: E03_760.pdf

Sordi, Gian-MariaGESTÃO DE FONTES RADIOATIVAS SELADAS DESCARTADASFile: E05_709.pdf



inac2002VI ENAN

Authors


Sorel, YvesCONCEPÇÃO INTEGRADA DE SISTEMAS MISTOS HARDWARE/SOFTWARE UTILIZADOS EM INSTRUMENTAÇÃO NUCLEARFile: E04_766.pdf

Soto, J.DATACION DE SEDIMENTOS DE LA BAHIA DE LA HABANAFile: E03_072.pdf

Sousa, Eduinetty Ceci P. M. deBIOACUMULAÇÃO E ELIMINAÇÃO DE MERCÚRIO POR PEIXE–REI (Xenomelanires brasiliensis) -TÉCNICA DOSRADIOTRAÇADORESFile: E03_538.pdf

Sousa, José Silva deOXIDATIVE BEHAVIOR OF IRRADIATED POLYPROPYLENE, PREDICTED AS TEMPERATURE-OXIDATIVE INDUCTION TIME(TOIT)File: E11_748.pdf

Sousa, Wanderson O.CHARACTERIZATION OF MONAZITE DUST PARTICLESFile: E02_721.pdfESTIMATIVA DE BACKGROUND EM MEDIDAS IN VIVO DE BAIXA ENERGIA ATRAVÉS DA CORRELAÇÃO COM PARÂMETROSANTROPOMÉTRICOS E COM O CONTEÚDO CORPORAL DE POTÁSSIOFile: E01_059.pdf

Souza, Altair Drumond deDIAGNÓSTICO DA QUALIDADE DO AR NA REGIÃO CIRCUNVIZINHA AO CDTNFile: E03_120.pdf

Souza, Cléber Nogueira deUSO DE FOTOTRANSISTORES PARA MEDIDA DAS CARACTERÍSTICAS DOSIMÉTRICAS DE FEIXES DE RAIOS-X UTILIZADOSEM RADIOCIRURGIA ESTEREOTÁXICAFile: E01_578.pdfDESENVOLVIMENTO DE UM SISTEMA DE DOSIMETRIA POR DIODO PARA O CONTROLE DA QUALIDADE DE UNIDADESDE TELETERAPIAFile: E01_680.pdf

Souza, Divanizia do NascimentoESTUDO DA INFLUÊNCIA DA RAZÃO OH/F NA RESPOSTA TERMOLUMINESCENTE DO TOPÁZIOFile: E11_286.pdf

Souza, Fabiane Ferreira deTIOCIANATO COMO TRAÇADOR RADIOATIVO EM CAMPO DE PETRÓLEOFile: E06_500.pdf

Souza, Gleison deRECUPERAÇÃO DE BROMO EM SOLUÇÕES RESIDUAIS GERADAS NA METODOLOGIA DE DETERMINAÇÃO ISOTÓPICADE 15N (RITTENBERG, 1946)File: E02_183.pdf



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Authors


Souza, Grace Mary Lima deRADIOIMUNOENSAIO PARA DETERMINAÇÃO DO HORMÔNIO TIREOIDEANO NA PROLE DE RATAS HIPOTIREOIDEAS EHIPERTIREOIDEASFile: E09_312.pdfEFEITO DE EXTRATOS DO MARACUJA-AÇU NA BIODISTRIBUIÇÃO DO TECNÉCIO-99m EM CAMUNDONGOSFile: E07_277.pdfACTION OF PHYLLANTHUS NIRURI ON THE HORMONES OF PREGNANT FEMALE RATSFile: E09_239.pdf

Souza, Jair Albo Marques deINCORPORATING EXTERNALITIES IN THE ASSESSMENT OF DIFFERENT ENERGY OPTIONS FOR ELECTRICITYPRODUTIONFile: E03_003.pdf

Souza, Jeffson Cavalcante deEVAPORAÇÃO DA ÁGUA DE UM SOLO SEM VEGETAÇÃO NO BREJO PARAIBANOFile: E08_391.pdf

Souza, Maria Ines Silvani deA POSITION SENSITIVE GAS DETECTOR FOR TOMOGRAPHY WITH THERMAL NEUTRONSFile: E04_301.pdfTOMOGRAFIAS COM DETECTOR DE RAIOS-X SENSÍVEL À POSIÇÃOFile: E04_778.pdfA HYBRID TECHNIQUE TO EVALUATE THE LINE SPREAD FUNCTIONFile: E10_142.pdf

Souza, Mário César B. deESTUDO PRELIMINAR DA LIXIVIAÇÃO DAS PILHAS DE MINÉRIO EXAURIDO DA UNIDADE DE CONCENTRAÇÃO DE URÂNIO– URA/INB, COM VISTA À AVALIAÇÃO DE IMPACTO AMBIENTALFile: E05_403.pdf

Sparovek, GerdVARIABILIDADE ESPACIAL DO “FALLOUT” DE 137Cs ENTRE ÁREAS DE REFERÊNCIA. I. MUNICÍPIOS DE PIRACICABA,NOVA ODESSA E CAMPINASFile: E08_322.pdf

Spitz, Henry B.CALIBRAÇÃO DA UNIDADE DE CONTADOR DE CORPO INTEIRO DO IRD PARA MEDIDAS IN VIVO DE PB-210 EM TECIDOÓSSEO E PULMONARFile: E01_058.pdf

Spoto, Marta Helena FilletRADIAÇÃO GAMA NA CONSERVAÇÃO DE PUPUNHA (Bactris gasipaes HBK) MINIMAMENTE PROCESSADAFile: E08_776.pdfUSO DA RADIAÇÃO GAMA NO ENVELHECIMENTO DA AGUARDENTE DE CANA DE AÇÚCARFile: E08_777.pdfLEITE DE CABRA IRRADIADO COM RAIOS GAMA: ANÁLISE SENSORIAL COMPARATIVA COM O LEITE DE CABRA PASTEURIZADOFile: E08_900.pdf

Springer, Francisco EdmundoDESENVOLVIMENTO E IMPLANTAÇÃO DE UM IRRADIADOR MULTIPROPÓSITO DE COBALTO-60 TIPO COMPACTOFile: E12_501.pdf



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Authors


Stasiulevicius, RobertoREVISÃO DE TRABALHOS E PROPOSTA DE EXPLORAÇÃO DA TÉCNICA DE NEUTRONGRAFIA NO REATOR TRIGA IPR-R1DO CDTNFile: E02_214.pdfEXPLORAÇÃO DO FEIXE DE NÊUTRONS EMERGENTE DO REATOR TRIGA IPR-R1 (MARK-I) PARA APLICAÇÕES GERAISFile: E13_215.pdf

Studdert, Guillermo A.MINERALIZAÇÃO BRUTA DO NITROGÊNIO EM SOLOS DE ALTA FERTILIDADE. EFEITO DO MANEJO E A PROFUNDIDADEDE AMOSTRAGEMFile: E08_775.pdf

Suguihiro, Natasha MidoriESTUDO DE FITOPATOLOGIAS ATRAVÉS DA TÉCNICA DE FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO EM ENERGIAFile: E08_537.pdf

Sumita, Nairo M.DETERMINAÇÃO DE ELEMENTOS TRAÇO EM TECIDO ÓSSEO HUMANO PELO MÉTODO DE ATIVAÇÃO COM NÊUTRONSFile: E02_481.pdfANÁLISE POR ATIVAÇÃO COM NÊUTRONS DA PLANTA TRADESCANTIA PALLIDA PARA USO NA MONITORAÇÃO DEPOLUENTES ATMOSFÉRICOSFile: E03_461.pdf

Sumiya, L. C. A. A.SYNTHESIS AND QUALITY CONTROL OF 18F-FDG AT IPEN-CNEN/SPFile: E07_712.pdf

Suzuki, Mirian FussaeANÁLISE CITOGENÉTICA DO 153Sm-EDTMP EM LINFÓCITOS PERIFÉRICOS DE PACIENTES COM CÂNCER ÓSSEOMETASTÁTICOFile: E07_245.pdf

Szieber, CristianFABRICATION, QUALIFICATION AND CALIBRATION OF 60Co SEALED SOURCESFile: E06_774.pdf

Taddei, Maria Helena TirolloFATORES DE TRANSLOCAÇÃO DE 60CO, 90SR E 137CS EM BATATEIRA E MILHEIRO.File: E01_580.pdfDETERMINAÇÃO DE ISÓTOPOS EMISSORES ALFA DE AMERÍCIO EM AMOSTRAS DE URINA E FEZESFile: E02_547.pdfMIGRATION OF 226 Ra, 228 Ra, 210Pb, U AND Th FROM PHOSPHOGYPSUMFile: E03_509.pdfDETERMINAÇÃO DOS PARÂMETROS NECESSÁRISOS PARA AVALIAÇÃO DO IMPACTO AMBIENTAL DECORRENTE DAUTILIZAÇÃO DO FOSFOGESSOFile: E03_574.pdf

Takata, Marcelo KazuoDETERMINAÇÃO DE ELEMENTOS TRAÇO EM TECIDO ÓSSEO HUMANO PELO MÉTODO DE ATIVAÇÃO COM NÊUTRONSFile: E02_481.pdf



inac2002VI ENAN

Authors


Tauhata, LuizINTERCOMPARAÇÃO DAS MEDIÇÕES DE ATIVIDADE DO 67Ga EM SERVIÇOS DE MEDICINA NUCLEAR BRASILEIROSFile: E07_113.pdf

Tavaraya, André KazuoANÁLISE POR ATIVAÇÃO COM NÊUTRONS DA PLANTA TRADESCANTIA PALLIDA PARA USO NA MONITORAÇÃO DEPOLUENTES ATMOSFÉRICOSFile: E03_461.pdf

Tavares, Glauco ArnoldRECUPERAÇÃO DE BROMO EM SOLUÇÕES RESIDUAIS GERADAS NA METODOLOGIA DE DETERMINAÇÃO ISOTÓPICADE 15N (RITTENBERG, 1946)File: E02_183.pdfSÍNTESE DE COMPOSTOS ORGÂNICOS ENRIQUECIDOS EM 15NFile: E02_278.pdf

Teixeira, Gleuber MarianoDETERMINAÇÃO DE 34S POR ESPECTROMETRIA DE MASSAS (% EM ÁTOMOS), DO S-SULFATO DISPONÍVEL EM AMOSTRASDE SOLO.File: E02_276.pdfEFEITO DA UMIDADE DO SOLO NA TAXA BRUTA DE MINERALIZAÇÃO DO NITROGÊNIOFile: E08_266.pdfUTILIZAÇÃO DO ENXOFRE APLICADO AO SOLO PELA SOJA, AVALIADO COM AS TÉCNICAS ISOTÓPICAS: 34S (ESTÁVEL) E35S (RADIOATIVO)File: E08_264.pdf

Teixeira, Maria InêsPROPRIEDADES TERMOLUMINESCENTES DE VIDROS COMUNS COLORIDOS PARA DOSIMETRIA DE DOSES ALTASFile: E01_535.pdf

Tello, Clédola Cássia Oliveira deTRATAMENTO POR CIMENTAÇÃO DE LÍQUIDOS DE CINTILAÇÃOFile: E05_488.pdf

Terence, Mauro CésarEFEITO DA RADIAÇÃO GAMA NA ESTRUTURA MOLECULAR DO POLI (ÁLCOOL VINÍLICO)File: E11_421.pdf

Terini, Ricardo AndradeSCATTERING FRACTION OF X-RAYS INCIDENT ON A PHANTOM FROM THE MEASURED ENERGY SPECTRAFile: E01_556.pdf

Tessler, Moyses G.INGESTÃO DE 210Pb E 210Po PELO CONSUMO DE PEIXES NO SISTEMA CANANÉIA-IGUAPE, SÃO PAULO, BRASILFile: E03_476.pdfNÍVEIS DE 210Pb E 210Po EM ÁGUAS DOS CANAIS DO SISTEMA COSTEIRO CANANÉIA-IGUAPE (SÃO PAULO, BRASIL)File: E03_477.pdf



inac2002VI ENAN

Authors


Tobias, Carmen Cecília BuenoDATA ACQUISITION SYSTEM FOR RESISTIVE CATHODE DETECTORSFile: E04_292.pdfUTILIZAÇÃO DE DIODOS DE Si PARA ESPECTROMETRIA ALFAFile: E04_439.pdfDETECÇÃO E ESPECTROMETRIA DE ELÉTRONS DE CONVERSÃO INTERNA E PARTÍCULAS BETA COM DIODOS DE SIFile: E04_440.pdf

Todo, Alberto SaburoIMPLEMENTAÇÃO DO SISTEMA DA QUALIDADE NO LABORATÓRIO DE RADIOTOXICOLOGIA DO IPENFile: E01_213.pdf

Tomimasu, SumieEFEITO DA [Ti02] NAS PROPRIEDADES DE ATENUAÇÃO DA RADIAÇÃO NO SIMULADOR DE TECIDO HUMANO OBTIDO DOLÁTEX DE BORRACHA NATURAL RADIOVULCANIZADOFile: E11_422.pdf

Tonolli, JoeESTUDO DO PROCESSO DE CO-POLIMERIZAÇÃO DE ACRILATOS E METACRILATOS INDUZIDO POR IRRADIAÇÃO GAMAFile: E11_662.pdf

Toyoda, Eduardo YoshioRESPOSTA DOS EQUIPAMENTOS E ATUAÇÃO DA EQUIPE DE RADIOPROTEÇÃO NA SOLUÇÃO DO INCIDENTE NO REATORIEA-R1, QUANDO DO VAZAMENTO DE UM ELEMENTO COMBUSTÍVEL.File: E01_638.pdf

Trivelin, Paulo César OcheuzeDETERMINAÇÃO DE 34S POR ESPECTROMETRIA DE MASSAS (% EM ÁTOMOS), DO S-SULFATO DISPONÍVEL EM AMOSTRASDE SOLO.File: E02_276.pdfDETERMINAÇÃO DE δ15N EM EFLUENTES URBANOS POR MICRODIFUSÃO AMONIACAL À VÁCUOFile: E03_122.pdfABSORÇÃO, TRANSLOCAÇÃO E REDISTRIBUIÇÃO DO NITROGÊNIO (15N) EM LARANJEIRAFile: E08_139.pdfUTILIZAÇÃO DO ENXOFRE APLICADO AO SOLO PELA SOJA, AVALIADO COM AS TÉCNICAS ISOTÓPICAS: 34S (ESTÁVEL) E35S (RADIOATIVO)File: E08_264.pdfEFEITO DA UMIDADE DO SOLO NA TAXA BRUTA DE MINERALIZAÇÃO DO NITROGÊNIOFile: E08_266.pdfRECUPERAÇÃO DO NITROGÊNIO (15N) DO AMÔNIO E DO NITRATO APLICADO AO SOLO PELA CANA-DE-AÇÚCARFile: E08_306.pdfMINERALIZAÇÃO BRUTA DO NITROGÊNIO EM SOLOS DE ALTA FERTILIDADE. EFEITO DO MANEJO E A PROFUNDIDADEDE AMOSTRAGEMFile: E08_775.pdf

Troncone, Lanfranco R. P.EFEITO DA TETRODOTOXINA NA LIBERAÇÃO DE ACETILCOLINA ESTIMULADA POR AGONISTAS GLUTAMATÉRGICOS EMTECIDO ESTRIATAL DE RATOSFile: E07_907.pdf



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Authors


Valente, Eduardo SarmentoDESENVOLVIMENTO E PRODUÇÃO DE FONTES DE COBALTO-60 PARA APLICAÇÃO EM SIDERÚRGICASFile: E06_437.pdf

Valerio, Mário Ernesto GiroldoESTUDO DA INFLUÊNCIA DA RAZÃO OH/F NA RESPOSTA TERMOLUMINESCENTE DO TOPÁZIOFile: E11_286.pdf

Valério, Rosa ArianoDETERMINAÇÃO DE δ15N EM EFLUENTES URBANOS POR MICRODIFUSÃO AMONIACAL À VÁCUOFile: E03_122.pdf

Vanderperre, SergeRADIOACTIVE WASTE CHARACTERIZATION IN BELGIUMFile: E05_244.pdf

Vanhaeverbeek, ChristineRADIOACTIVE WASTE CHARACTERIZATION IN BELGIUMFile: E05_244.pdf

Vanin, Vito RobertoDATA ACQUISITION SYSTEM FOR RESISTIVE CATHODE DETECTORSFile: E04_292.pdfTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdf

Vasconcellos, Mari Estela dePRODUÇÃO DE LANTÂNIO DE ALTA PUREZA PARA APLICAÇÃO EM P&DFile: E11_173.pdfRECUPERAÇÃO DE TÓRIO COMO NITRATO “MANTLE GRADE” USANDO-SE UM HIDRÓXIDO DE TÓRIO BRUTOFile: E11_180.pdf

Vasconcellos, Marina Beatriz AgostiniDETERMINAÇÃO DE SELÊNIO EM MATERIAIS BIOLÓGICOS POR ANÁLISE POR ATIVAÇÃO COM NÊUTRONS - COMPARAÇÃOESTATÍSTICA ENTRE O USO DO 77mSe (t1/2 = 17,45s) E 75Se (t1/2 = 119,8d)File: E02_435.pdfDETERMINAÇÃO DE ELEMENTOS TRAÇO EM MATERIAIS DE REFERÊNCIA DE SILÍCIO E FERRO-SILÍCIO PELO MÉTODOINSTRUMENTAL DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONSFile: E02_504.pdfAPLICAÇÃO DAS TÉCNICAS DE ANÁLISE POR ATIVAÇÃO COM NÊUTRONS E FLUORESCÊNCIA DE RAIOS X EM AMOSTRADE FÍGADO BOVINOFile: E02_527.pdfANÁLISE DE ESPÉCIES DE LIQUENS EPIFÍTICOS PARA USO NA BIOMONITORAÇÃO DE POLUENTES ATMOSFÉRICOSFile: E03_475.pdf

Vasconcelos, Danilo C.AVALIAÇÃO DA CONTAMINAÇÃO POR METAIS ASSOCIADA AO DESPEJO DE CHORUME NO RIO CURURUPE-ILHÉUS-BAUTILIZANDO K0-INAA E ICP-MSFile: E03_146.pdf



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Authors


Vasconcelos, Elder A. deEVALUATION OF POLYANILINE NANOFILM’S RESPONSE FOR 60 Co BEAMSFile: E01_423.pdf

Vasconcelos, Vanderley dePROPOSAL OF METHODOLOGY TO SELECT BINDERS FOR HAZARDOUS WASTES STABILIZATION (PROPOSTA DEMETODOLOGIA PARA A SELEÇÃO DE MATRIZES PARA A ESTABILIZAÇÃO DE RESÍDUOS PERIGOSOS)File: E05_348.pdfMODELOS PARA ANÁLISE DE CONSEQÜÊNCIA DE ACIDENTES APLICADOS AOS PROCESSOS DE LICENCIAMENTO DEINSTALAÇÕES NUCLEARES, RADIATIVAS E INDUSTRIAIS CONVENCIONAISFile: E13_039.pdfMETODOLOGIA PARA AVALIAÇÃO DE RISCOS DE INSTALAÇÕES NUCLEARESFile: E13_075.pdfESTIMATIVA DE DISTÂNCIA FINAL DE PERIGO EM RAZÃO DE LIBERAÇÕES ACIDENTAIS DE SUBSTÂNCIAS TÓXICAS NAATMOSFERAFile: E13_078.pdf

Vasques, Francisco M. FeijóTRANSPORTE DE NITRATO DE TÓRIO PARA FIRMAS EXTERNAS AO IPEN-CNEN/SPFile: E01_265.pdfDESCONTAMINAÇÃO DE SUPERFÍCIES NA USINA DE URÂNIO METÁLICO DA DIVISÃO DE PROCESSOS METALÚRGICOSIPEN/CNEN-SPFile: E01_489.pdf

Vaz, Antonio Carlos AlvesAVALIAÇÃO DA INFLUÊNCIA DAS PROPRIEDADES E GEOMETRIA DA AMOSTRA EM ESPECTROMETRIA DE RAIOS GAMAFile: E02_668.pdf

Veado, Júlio César CambraiaINAA AS TOOL FOR ENVIRONMENT BIOMONITORINGFile: E02_171.pdf

Veado, Maria Adelaide R. V.INAA AS TOOL FOR ENVIRONMENT BIOMONITORINGFile: E02_171.pdf

Vela, MarianoPRODUCCIÓN DE CENTROS DE COLOR EN EL TOPACIO NATURAL IRRADIADO CON NEUTRONES EN EL NÚCLEO DELREACTOR PERUANO RP-10File: E06_397.pdf

Venturini, LuziaCALIBRAÇÃO TEÓRICA DE UM DETETOR NaI(Tl) PARA A DETERMINAÇÃO DE 131I EM UM SIMULADOR DE TIREÓIDEFile: E01_030.pdf

Vetere, Maria Inês C.APLICAÇÃO DO SISTEMA INTEGRADO DE AVALIAÇÃO DE IMPACTO RADIOLÓGICO AMBIENTAL EM SITUAÇÕES DEEMERGÊNCIA PARA A AVALIAÇÃO DA EXPOSIÇÃO RADIOLÓGICA DE POPULAÇÕES DE ÁREAS URBANASFile: E01_448.pdf



inac2002VI ENAN

Authors


Viana, Aline GonzalezVALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137Cs EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOS TROPICAISFile: E01_752.pdfTRANSFER AND MOBILITY OF 137CS AND 60CO IN OXISOL AND ALFISOLFile: E01_753.pdf

Vianna, Cristina RoscoeINFLUÊNCIA DOS RADICAIS LIVRES GERADOS PELA IRRADIAÇÃO GAMA NOS NÍVEIS DE TREALOSE EM CÉLULAS DALEVEDURA Saccharomyces boulardiiFile: E09_655.pdf

Vicente, RobertoGESTÃO DE FONTES RADIOATIVAS SELADAS DESCARTADASFile: E05_709.pdf

Vico, ElenaTHE RADIOACTIVE WASTE MANAGEMENT PROGRAMME IN SPAINFile: E05_559.pdf

Videla, CecíliaMINERALIZAÇÃO BRUTA DO NITROGÊNIO EM SOLOS DE ALTA FERTILIDADE. EFEITO DO MANEJO E A PROFUNDIDADEDE AMOSTRAGEMFile: E08_775.pdf

Viegas, Claudio Castelo BrancoMEDIDAS IN VIVO EM PACIENTES SUBMETIDOS À RADIOTERAPIA PARA TRATAMENTO DE CÂNCER DE CABEÇA EPESCOÇOFile: E07_023.pdf

Vieira, Fernando FabrisEFEITO DA RADIAÇÃO IONIZANTE DE 60 Co SOBRE PROPRIEDADES REOLÓGICAS DA GOMA GUAR ECARBOXIMETILCELULOSE PARA USO NA INDÚSTRIA ALIMENTÍCIAFile: E08_145.pdf

Vieira, José MauroDESENVOLVIMENTO E IMPLANTAÇÃO DE UM IRRADIADOR MULTIPROPÓSITO DE COBALTO-60 TIPO COMPACTOFile: E12_501.pdf

Vieira, José WilsonMAX – A MALE ADULT VOXEL MODEL FOR RADIATION PROTECTION DOSIMETRYFile: E01_744.pdfCALCULATION OF RED BONE MARROW EQUIVALENT DOSE TO THE MAX (MALE ADULT VOXEL) MODEL FOR EXTERNALEXPOSURES TO PHOTONSFile: E01_745.pdf

Vieira, Martha Marques FerreiraGESTÃO DE UMA UNIDADE DE ENSINO NA ÁREA NUCLEARFile: E14_551.pdf

Vieira, Thais MolinaESTUDO E MONTAGEM DE SISTEMA DE MEDIDAS USANDO RETROESPALHAMENTO DE RADIAÇÃO GAMAFile: E04_181.pdf



inac2002VI ENAN

Authors


Vieira, Wilson JoséNEUTRON AND GAMMA RAY DOSE EQUIVALENT ESTIMATES FOR THE IEAV LINEAR ACCELERATORFile: E01_170.pdf

Vilela, Éudice CorreiaESTUDO DE TÉCNICAS DE ANÁLISE DE RESPOSTA DE DOSÍMETROS TERMOLUMINESCENTESFile: E01_300.pdf

Villavicencio, Anna Lucia Casañas HaasisTESTE DO COMETA NA DETECÇÃO DE ALHO IRRADIADOFile: E08_334.pdf

Vital, Helio de CarvalhoDETERMINAÇÃO DO VALOR D10 PARA ESCHERICHIA COLI O157:H7 EM DIFERENTES MEIOS DE CULTURAFile: E09_524.pdf

Viterbo, Vanessa C.ANÁLISE DO ESPECTRO DE VIDA MÉDIA DE ANIQUILAÇÃO DO PÓSITRON ATRAVÉS DE ESTUDOS DE PROBLEMASINVERSOSFile: E11_205.pdf

Vitoreti, Cristiane da SilvaDETERMINAÇÃO DE TEMPO DE RESIDÊNCIA MÉDIO -TRM - EM UM DIGESTOR ANAERÓBIO DA ESTAÇÃO DE TRATAMENTODE ESGOTOS DE BARUERI COM UTILIZAÇÃO DE TRAÇADOR RADIOATIVOFile: E06_138.pdf

Vitti, André CesarEFEITO DA UMIDADE DO SOLO NA TAXA BRUTA DE MINERALIZAÇÃO DO NITROGÊNIOFile: E08_266.pdfRECUPERAÇÃO DO NITROGÊNIO (15N) DO AMÔNIO E DO NITRATO APLICADO AO SOLO PELA CANA-DE-AÇÚCARFile: E08_306.pdf

Vitti, Dorinha Miriam Silber SchmidtRUMEN MICROBIAL GROWTH ESTIMATION USING IN VITRO RADIOPHOSPHOROUS INCORPORATION TECHNIQUEFile: E08_323.pdf

Vives, Ana Elisa Sirito deTOTAL AND AVAILABLE METAL CONTENTS IN SEDIMENTS BY SYNCHROTRON RADIATION TOTAL REFLECTION X-RAYFLUORESCENCEFile: E02_343.pdfEMPREGO DA FLUORESCÊNCIA DE RAIOS X DISPERSIVA PARA AVALIAÇÃO DA POLUIÇÃO POR METAIS PESADOS EMAMOSTRAS DE ÁGUA E SEDIMENTOS DE LAGOSFile: E03_413.pdfDISPONIBILIDADE DE METAIS PESADOS EM SEDIMENTOS DE LAGOS UTILIZANDO TÉCNICAS DE EXTRAÇÃO QUÍMICA EDE FLUORESCÊNCIA DE RAIOS XFile: E03_433.pdf

Vivolo, VitorDEPENDÊNCIA ANGULAR DE MONITORES PORTÁTEIS EM FEIXES PADRONIZADOS DE RADIAÇÃO GAMAFile: E01_684.pdf



inac2002VI ENAN

Authors


Voi, Dante LuizESTUDOS SOBRE A ESTRUTURA E DINÂMICA MOLECULARES DO DNA E COMPONENTES DA CÉLULA ATRAVÉS DETÉCNICAS DE MEDIDAS COM NÊUTRONSFile: E09_586.pdfANÁLISE DE AMINOACIDOS ATRAVÉS DAS TÉCNICAS DO AGRUPAMENTO E PARCELAMENTO DE SEÇÕES DE CHOQUEPARA NÊUTRONSFile: E09_589.pdf

Wacha, ReinaldoVERIFICAÇÃO DA VIABILIDADE DA DETECÇÃO DE VIRIONS, ATRAVÉS DA ANÁLISE POR ATIVAÇÃO COM NÊUTRONSFile: E10_011.pdf

Wada, Luciana YukieDETERMINAÇÃO ESPECTROFOTOMÉTRICA DE URÂNIO(VI) COM ARSENAZO III, EM MEIO NÍTRICOFile: E02_368.pdfESTUDO DA INFLUÊNCIA DOS PARÂMETROS DE PREPARAÇÃO DA MAGNETITA NA EFICIÊNCIA DE ADSORÇÃO DE METAISNO TRATAMENTO DE EFLUENTESFile: E05_339.pdf

Wagener, KlausCOMPARATIVE MEASUREMENTS OF GROWTH RINGS IN TREES USING A MICROSCOPIC METHOD AND DIGITAL X- RAYDENSITY IMAGESFile: E03_157.pdf

Walder, Júlio Marcos MelgesRADIAÇÃO GAMA NA CONSERVAÇÃO DE PUPUNHA (Bactris gasipaes HBK) MINIMAMENTE PROCESSADAFile: E08_776.pdfUSO DA RADIAÇÃO GAMA NO ENVELHECIMENTO DA AGUARDENTE DE CANA DE AÇÚCARFile: E08_777.pdf

Wasserman, Julio CesarTRANSFER AND MOBILITY OF 137CS AND 60CO IN OXISOL AND ALFISOLFile: E01_753.pdfA PRELIMINARY STUDY ON THE BEHAVIOUR OF TRACE ELEMENTS IN SEDIMENT CORES FROM ILHA GRANDE (RIO DEJANEIRO) BY NEUTRON ACTIVATION ANALYSISFile: E03_464.pdf

Wasserman, Maria AngélicaFATORES DE TRANSLOCAÇÃO DE 60CO, 90SR E 137CS EM BATATEIRA E MILHEIRO.File: E01_580.pdfVALORES DE TRANSFERÊNCIA SOLO-PLANTA DE 137Cs EM SOLOS DE SISTEMAS AGRO-ECÓLOGICOS TROPICAISFile: E01_752.pdfTRANSFER AND MOBILITY OF 137CS AND 60CO IN OXISOL AND ALFISOLFile: E01_753.pdf

Wiebeck, HélioDETERMINAÇÃO DE ELEMENTOS TÓXICOS EM MATERIAIS PLÁSTICOS METALIZADOSFile: E02_454.pdfCARACTERIZAÇÃO DA POLIAMIDA-6 RECICLADA IRRADIADA POR FEIXE DE ELÉTRONSFile: E11_398.pdf



inac2002VI ENAN

Authors


Wieland, PatriciaALGUNS ASPECTOS LEGAIS RELACIONADOS À IMPLANTAÇÃO NO BRASIL DAS RECOMENDAÇÕES DA AGÊNCIAINTERNACIONAL DE ENERGIA ATÔMICA RELATIVAS A PROTEÇÃO RADIOLÓGICAFile: E13_718.pdfCERTIFICAÇÃO DO ATENDIMENTO AOS REQUISITOS DE SEGURANÇA E RADIOPROTEÇÃO PELAS INSTALAÇÕESNUCLEARES E RADIATIVAS DA CNENFile: E13_738.pdf

Wildhagen, Glória Regina da SilvaESTUDO EXPERIMENTAL DO TEMPO DE RESIDÊNCIA DE PARTÍCULAS EM SECADOR ‘SPRAY’File: E06_229.pdfOBTENÇÃO DE CLORETO DE TERRAS RARAS ANIDRO EM LEITO FLUIDIZADOFile: E11_531.pdf

Wilkinson, María VictoriaESTUDIO DE LA RETENCIÓN DE MOLIBDENO EN ALÚMINAFile: E11_676.pdf

Xavier, OsvaldoPBMC AND MDAMB-231 CELLULAR VIABILITY AFTER TELECOBALT IRRADIATIONFile: E07_763.pdf

Yamaura, MitikoDETERMINAÇÃO ESPECTROFOTOMÉTRICA DE URÂNIO(VI) COM ARSENAZO III, EM MEIO NÍTRICOFile: E02_368.pdfESTUDO DA INFLUÊNCIA DOS PARÂMETROS DE PREPARAÇÃO DA MAGNETITA NA EFICIÊNCIA DE ADSORÇÃO DE METAISNO TRATAMENTO DE EFLUENTESFile: E05_339.pdfREMOÇÃO DE EURÓPIO POR PRECIPITAÇÃO DA FERRITAFile: E05_341.pdfPREPARAÇÃO DE NANOPARTÍCULAS MAGNÉTICAS SILANIZADAS PARA UTILIZAÇÃO EM TÉCNICAS DE SEPARAÇÃOMAGNÉTICAFile: E11_346.pdf

Yamazaki, Ione MakikoDESENVOLVIMENTO DO MÉTODO A SECO DE REGISTRO DE TRAÇOS DE FISSÃO A SER EMPREGADO NA DETERMINAÇÃODE URÂNIO EM DIVERSOS TIPOS DE AMOSTRAS BIOLÓGICAS E AMBIENTAISFile: E02_513.pdf

Yoriyaz, HélioMONTE CARLO SIMULATION FOR DOSE DETERMINATION IN THYROID CANCER PATIENTSFile: E01_045.pdfMODELAGEM DE OLHO HUMANO PARA PROJETO DE SIMULADORES OFTÁLMICOS PARA APLICAÇÕES CLÍNICASFile: E07_354.pdf

Youssef, Michel NicolauAVALIAÇÃO DA PERDA DENTAL HUMANA COM O USO DO CLAREADOR PERÓXIDO DE CARBAMIDA COMPARADO AOCONDICIONAMENTO COM ÁCIDO FOSFÓRICO - MÉTODO RADIOMÉTRICOFile: E07_369.pdf



inac2002VI ENAN

Authors


Zahn, Guilherme SoaresNEUTRON FLUX DISTRIBUTION IN AN Am-Be NEUTRON IRRADIATORFile: E04_288.pdfGAMMA SPECTROSCOPY OF EXCITED LEVELS IN 193IrFile: E10_284.pdf

Zamboni, Cibele BugnoNUCLEAR METHODOLOGY FOR STUDYING BIOLOGICAL FUNCTIONS OF MAMMALIANS SUBMITTED TO URANIUMINGESTIONFile: E02_418.pdfNEUTRON FLUX DISTRIBUTION IN AN Am-Be NEUTRON IRRADIATORFile: E04_288.pdfTHE ROLE PLAYED BY PHYTASE AND METABOLISM IN THE ACCUMULATION OF URANIUM IN THE POULTRY BONESFile: E09_411.pdfGAMMA SPECTROSCOPY OF EXCITED LEVELS IN 193IrFile: E10_284.pdfSPIN OF EXCITED LEVELS IN 149PmFile: E10_372.pdfESPECTROSCOPIA GAMA NOS NÍVEIS EXCITADOS DE 155EuFile: E10_374.pdfESTUDO DA ESTRUTURA NUCLEAR DO 72GeFile: E10_636.pdf

Zavaglia, Cecília A.C.CARACTERIZAÇÃO MECÂNICA DE HIDROGÉIS DE PVAl PARA SEREM UTILIZADOS COMO CARTILAGEM ARTICULARARTIFICIAL RETICULADOS POR RADIAÇÃOFile: E11_543.pdf

Zektser, Igor S.GROUNDWATER RESOURCES AND REGIONAL ENVIRONMENTAL RADIONUCLIDE CONTAMINATIONFile: E03_335.pdf

Zenóbio, Elton GonçalvesPOSSIBILIDADES DE DIGITALIZAÇAO RADIOGRÁFICA NA CLÍNICA ODONTOLÓGICAFile: E07_659.pdf

Zenóbio, Madelon Aparecida FernandesREQUISITOS DE PROTEÇÃO RADIOLÓGICA EM CLÍNICAS ODONTOLÓGICASFile: E01_739.pdfPOSSIBILIDADES DE DIGITALIZAÇAO RADIOGRÁFICA NA CLÍNICA ODONTOLÓGICAFile: E07_659.pdf

Zevallos-Cháves, Juan Y.GAMMA SPECTROSCOPY OF EXCITED LEVELS IN 193IrFile: E10_284.pdfSPIN OF EXCITED LEVELS IN 149PmFile: E10_372.pdfESPECTROSCOPIA GAMA NOS NÍVEIS EXCITADOS DE 155EuFile: E10_374.pdf



inac2002VI ENAN

Authors


Zidan, Priscila MendesESTUDO DOS PROCEDIMENTOS DE PROTEÇÃO RADIOLÓGICA E GERENCIAMENTO DE REJEITOS RADIOATIVOS EMLABORATÓRIOS DE RADIOFARMÁCIAFile: E01_037.pdf

Zorrilla, Fernando ParreñoPRODUCCIÓN DE CENTROS DE COLOR EN EL TOPACIO NATURAL IRRADIADO CON NEUTRONES EN EL NÚCLEO DELREACTOR PERUANO RP-10File: E06_397.pdf

Zucchi, Orghêda Luiza Araújo DominguesANÁLISE ELEMENTAR DE Alternanthera maritima E Blutaparon portulacoides (GOMPHRENEAE, AMARANTHACEAE) PORFLUORESCÊNCIA DE RAIOS XFile: E03_198.pdf

Zuloaga, PabloLOW AND INTERMEDIATE WASTE MANAGEMENT IN SPAINFile: E05_579.pdf

inac2002

VI ENANNATIONAL MEETING ON NUCLEAR APPLICATIONS



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