NISP-RP-09 Radiography Rev 0 03-04-17 Radiography.pdfcommunications tools such as the plant or outage schedule, risk assessment, or daily status sheets. When possible use plant layout

Radiography

NISP-RP-09

Revision:0.0 EffectiveDate:3-4-2017 ThisisanindustryTier2Documentforstandardizingradiationprotectionprocessesusedbysupplementalradiationprotectiontechnicians.Standardprocessesandrequirementsareestablishedtoeliminatesite-specificradiationprotectiontrainingforsupplementalradiationprotectiontechniciansandsupervisors.TheInstituteforNuclearPowerOperations(INPO)maintainscurrentproceduresforstandardprocessesontheINPOwebsiteandhasapprovalauthorityforrevisions.INPOapprovalauthorityisgrantedbytheindustrycontingentonastructuredreviewandapprovalprocessbyrepresentativesofutilityradiationprotectionorganizations.

NUCLEARINDUSTRYSTANDARDPROCESS

RadiologicalProtection

Tier2Document

NuclearIndustryStandardProcessRadiography

Document#:NISP-RP-09

Revision:0.0

EffectiveDate:03-04-2017

TableofContents

1.0 Introduction..............................................................................................................11.1 Purpose..................................................................................................................1

1.2 ScopeandApplicability..........................................................................................1

2.0 GeneralRequirements..............................................................................................1

3.0 ProcessInstructions..................................................................................................33.1 SurveyandStoreaRadiographySource................................................................3

3.2 ReviewtheRadiographyShotPlan........................................................................4

3.3 PreparefortheRadiographyShot.........................................................................5

3.4 MonitortheRadiographyShot..............................................................................5

3.5 RestoreArea..........................................................................................................6

3.6 Emergencyresponseactions..................................................................................6

4.0 ClarifyingNotes.........................................................................................................7

5.0 References.................................................................................................................7

Attachment1:RadiographyChecklist-Sample.................................................................8

Attachment2:CurietoDoseRateProjectionChart........................................................10

Attachment3:BoundaryGuardBriefingSheet...............................................................13

Attachment4:GuidelinesforDevelopmentofRadiographyShotPlans.........................14

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1.0 Introduction

1.1 PurposeThisprocedureprovidesinstructionstoRadiationProtectionpersonnelforestablishingboundaries,postings,andcontrolsinsupportofon-siteradiography.ThisprocedureonlycontainsthespecificrequirementsastheyapplytoSupplementalRPTprovidingjobcoverage.SiteprocedureswillcontainotheractionsforsiteRPpersonnel.

1.2 ScopeandApplicabilityThisproceduredescribesthebasicoverallprocessfortheRPorganizationtosupportradiography.Thisproceduredoesnotprovideguidanceforradiologicalcontrolsinvolvingpulsex-raydevices.Ifpulsex-raydevicesareusedthestationwillprovideguidancetosupplementalpersonnelontheradiologicalcontrolrequirements.Supplementalpersonnelmaybeassignedportionsoftheactivitiesdescribedinthisprocedurebutshouldstillunderstandtheoverallprocessandhowassignedresponsibilitiescontributetosuccessful,event-freeradiography.

ThisprocedureisapplicabletoUSmemberutilitieswiththeInstituteofNuclearPowerOperations(INPO).Memberutilitiesareexpectedtousethisstandardtoenablesupplementalworkerstotransitionbetweennuclearpowerplantswithminimalsite-specifictraining.Compliancewiththeseinstructionsisexpectedwithoutadditionalsiterequirementsorprocessdeviationsbeingimposedthatmayrequireadditionaltrainingorchallengetheperformanceofsupplementalworkers.

Thisprocedurewillbeusedtotrainandinstructsupplementalradiologicalprotectiontechnicians.MemberutilitieswillimplementtheseprocessrequirementsinsiteproceduresandupdatesiteprocedureswheneverrequirementsorprocessstepsinthisNuclearIndustryStandardProcess(NISP)arerevised.CurrentrevisionsaremaintainedontheINPOwebsite.

Terms,acronyms,anddefinitionsareprovidedinNISP-RP-13,RadiologicalProtectionGlossary.

ClarifyingnotesforrequirementsandprocessstepsareprovidedinSection4.0usingsuperscriptnumbers.

2.0 GeneralRequirements

2.1 Theradiographeristhelicensedindividualfortheuseandstorageofaradiographysourceandshallalwaysmaintainoverallresponsibilityofradiographyactivities.ConductingradiographyonanuclearplantsiteintroducesoverlappingresponsibilitieswiththesiteRadiologicalProtectionprogram.Therelationshipsbetweentheseoverlappingresponsibilitiesaresummarizedbelow:

2.1.1 TheradiographershallcomplywithsiteRPprocedures.2.1.2 TheradiographershallestablishlockedaccesscontrolsinconjunctionwithsiteRPand

Securityasrequiredbysiteproceduresand10CFR37.2.1.3 Theradiographershallhavedirectcontroloveranymovementofthesource.2.1.4 Theradiographerisresponsibleforestablishingthelocationofboundaries,postings,and

accesspointsusinginputfromthesiteRPorganization.2.1.5 RPpersonnelshallprovideinputtotheradiographeronthebestlocationforboundaries

basedontheplantlayoutandactivitiesinsurroundingareas.

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2.1.6 TheRadiographyRadiationSafetyOfficerhastheresponsibilityforimplementationofemergencyproceduresintheeventofamalfunctionordamagedradiographysource.

2.1.7 TheRPorganizationhastheresponsibilitytoprovidecontrolsnecessarytoprotectsitepersonnelduringradiographicoperations.

2.1.8 RPhasoverallresponsibilityindetermininghowboundarieswillbecontrolledthroughlockedaccessand/orboundarymonitoring.

2.1.9 RadiographyshallnotproceeduntilboththesiteRPorganizationandtheradiographerconcuronthelocationofboundariesandthemannerinwhichtheyarecontrolled.Attachment2,CurietoDoseRateProjectionChartshowscalculatedunshieldeddoseratesatvariousdistancesfromtypicalradiographysources.

2.1.10 TheRadiographerandRadiationProtectionshallbothensureallunauthorizedpersonnelhavebeenremovedfrominsidethepostedareapriortothestartofradiography.

2.2 Radiographylicensestypicallyprohibitunauthorizedpersonnelfrombeingintheradiographyareawithoutapprovaloftheradiographylicense,i.e.theradiographerandtrainedassistants.ApprovalforRPtobeinsidetheradiographyboundarymustbeobtainedfromtheradiographerpriortothestartofworkactivities.

2.3 Documentradiologicalsurveysusingplant-specificforms.

2.4 RadiographyshallbeperformedusingaspecificRWPwrittenforthatactivity.

2.5 EnsureplantSecuritypersonnelareengagedinestablishingsecurityzonesfortheuseandstorageoftheradiographysourceif10CFR37requirementsapply.10CFR37willbeapplicableiftheaggregateofthesourcesstoredintheareameetsthefollowingthresholds.2

2.5.1 8.1Cior0.3TBqofCo-602.5.2 21.6Cior0.8TBqofIr-1922.5.3 54.0Cior2TBqofSe-75

2.6 AnyremovalandtransitofsourcefromastorageareamustbeunderthedirectcontroloftheradiographerandsiteRadiationProtectionpersonnel.

2.7 Effectivecommunicationsareessentialtosuccessfulimplementationofradiography.Theimpactsofradiographyboundariescanbesignificantonotherworkgroupsuchasoperationsandsecurity.Communicationplansshouldpreparethesitebeforethestartofradiography,duringtheexposureofthesource,andatthecompletionandrestorationofthearea.

2.7.1 Ifpossible,48hoursbeforethestartofradiographyreviewtheradiographyshotplanwithoperationsandsecuritytoverifythatallpotentialimpactshavebeenaccountedfor.

2.7.2 Ifradiographyisscheduledtobeperformedwithouta48hournoticetothestation,thensitemanagementshouldconsiderprovidingadditionaloversightoftheprocesstoensureanerrorfreeimplementation.

2.7.3 Informthestationoftheupcomingradiographythroughtheuseofsitewidecommunicationstoolssuchastheplantoroutageschedule,riskassessment,ordailystatussheets.Whenpossibleuseplantlayoutmapstoshowtheareathatwillberestrictedduringradiography.

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2.7.4 Notifyoperationsandsecuritypriortoestablishmentofradiographyboundaries.Oncetheboundarieshavebeenestablishednotifyoperationsandsecuritywhenthesourcehasbeenmovedintotheareaandradiographyisabouttobegin.

2.7.5 Priortotheexposureofthesource,makeanannouncementtothestationovertheplantpagingsystemthatradiographyisabouttocommenceandallpersonnelaretoavoidtheareaestablishedbytheradiographyboundary.

2.7.6 Priortotheexposureofthesourcecommunicatewitheachboundaryguardandvalidatetheyareintheproperlocation.

2.7.7 WhenthesourceisexposedcommunicatewithRPpersonneltoperformradiationsurveys.

2.7.8 Notifyoperationsandsecuritywhenradiographyhasbeencompletedandthearearestoredtonormalconditions.

2.7.9 Makeanannouncementovertheplantpagingsystemoncetheareahasbeenrestoredthatnormalaccessisnowallowed.

3.0 ProcessInstructions

3.1 SurveyandStoreaRadiographySource3.1.1 Surveytheradiographicexposuredeviceforthefollowing:

• Contactradiationlevels• Radiationlevelsat30cm• Radiationlevelsat1m• Removablecontaminationontheexternalsurfaceofthedevice

3.1.2 EnsurethestoragedeviceislabeledandthestorageareapostedperNISP-RP-02(Reference5.2).

Section3.1Survey&Store

Source

Section 3.2 Review

Radiography Shot Plan

Section 3.3 Prepare for

Radiography Shot

Section 3.4 Monitor

Radiography Shot

Section 3.5 Restore Area

Section 3.6 Emergency

Response Actions

CAUTIONStop,securethearea,andnotifyRPsupervisionifanyofthefollowingconditionsexist1:

• Contactradiationlevels≥200mrem/hour• Radiationlevelsat1m≥10mrem/hour• Removablecontaminationfromtheexteriorofthedevice>1,000dpm/100cm2

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a. NotifyRPsupervisionifthestorageareamustbecontrolledasaHighRadiationArea.b. RadiationProtectionshouldmaintainalockingdeviceontheradiographystoragelocation.

3.1.3 EnsureRPpersonnelescortmovementofthesourcetoandfromthestoragelocation.3.1.4 Ensurethestorageareaissurveyedeachtimeasourceisreturnedforstorage.3.1.5 NotifyRPsupervisionifthedeviceappearstohavephysicaldamage.3.1.6 Notifysecuritypersonnelforimplementationof10CFR37securitycontrolsifthesourcemeets

thecriteriainsection2.4.

3.2 ReviewtheRadiographyShotPlan

3.2.1 ARadiographyShotPlanshouldbedevelopedusingAttachment4,GuidelinesforDevelopmentofRadiographyShotPlans.Allstakeholdersshouldbeinvolvedinthedevelopmentoftheplan.

3.2.2 ReviewtheRadiographyShotPlan3tounderstandthefollowing:

• Radionuclideandactivityofthesource• Number,direction,anddurationofexposures• Determinationifthesourcewillbecollimatedorafreeairexposure• Projectedboundarylocationsdelineatedonplantmaporsurvey• Locationofsourceandpersonnelduringexposure• Impactstoplantequipmentincludingradiationandprocessmonitors• Numberandlocationofboundaryguards• Communicationplansbetweenradiographypersonnel,controlroom,boundaryguards,

radiationprotectionandplantpersonnelincludingannouncementsovertheplantpagingsystem.Typeofcommunicationdevices(cellphones,radios)shouldbedefined.

• Dosereductionactionsincludingidentificationoflowdosewaitingareas.• Useofremotemonitoringdevicestoindicateradiationlevelswhiletheradiographysourceis

exposed• Impactstosecurity,operationsandemergencyresponsepersonnelandactionstobetakenin

emergencysituationswheretheyneedtoenterthearea• Contingencyactionstobetakenifsourcemalfunctionshouldoccur

3.2.3 Walk-downboundarylocationsassignedforcontrolpriortotheradiographyshottoensurethefollowing:a. PotentialaccesspointshavebeenpostedwithaccesscontrolsestablishedpertheShotPlan.b. Laddersandscaffoldshavenotbeenplacedcreatingaccesspointsnotaddressedperthe

ShotPlan.c. IdentifyanyotherpotentialaccesspointsnotaddressedbytheShotPlan.

3.2.4 EnsuretheShotPlanincludesprojectedradiographyboundariesforbothaHighRadiationAreaandRadiationArea.a. HighRadiationAreaswillbeestablishedinaccordancewiththeradiographer’spolicyand

mayincludethedurationofexposurewhenestimatingwhereanindividualmayexceed100mreminanhour.4

b. RadiationAreaboundariesshallbeestablishedwheretheexpecteddoserateisexpectedtobe<2mrem/hourwhilethesourceisexposed.

c. AccesscontrolwillbeestablishedattheprojectedRadiationAreaboundaryat<2mrem/hr.5

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3.2.5 TheRPMisresponsibleforreviewandapprovaloftheradiographyshotplanpriortoimplementation.

3.3 PreparefortheRadiographyShot

3.3.1 SetupboundariesandpostingspertheShotPlanandNISP-RP-02.Notifyoperationsandsecuritywhenboundariesarebeingestablished.

3.3.2 LockdoorsandgatesspecifiedbytheShotPlan.3.3.3 Ensurepersonnelhavetherequireddosimetry,surveyinstruments,andcommunications

equipment.Verifyallequipmentisoperable.3.3.4 Ensureneededboundaryguardshavebeenassigned,briefed,andprovidedwithany

identificationmeasuresasrequiredbyRPsupervision,e.g.vestsorarmsleeves.UseAttachment3toinformboundaryguardsoftheirresponsibilities.

3.3.5 SetuptelemetryasrequiredbytheShotPlantoverifythesourceisinashieldedpositionand/ortomonitorradiographypersonnel.

3.3.6 CompletethestepsinAttachment1,RadiographyChecklist.RequirementsofAttachment1maybeincludedinsiteformswhichprovideadditionaldetailsorrequirements.a. Ensureallpersonnelinvolvedintheshotattendtheprejobbrief.

3.3.7 Escorttheradiographysourcetotheradiographyarea.a. Informthecoverageteamthatthesourceisinsidetheradiographyboundary.

3.3.8 Workwiththeradiographertowalk-downareaswithinthepostedareatoensureunauthorizedpersonnelarenotpresent.DocumentcompletionofthissteponAttachment1.a. Ensurevisualinspectionsincludethetopofscaffolds,roofs,opentanks,condenser

manways,andbehinddoors.b. Informthecoverageteamwhenpotentiallyaffectedareashavebeenverifiedtobeclearof

unauthorizedpersonnel.3.3.9 RPshallprovidethefinalapprovalforthestartofradiographyafterhavingcompletedthe

requirementsestablishedintheRTchecklistandhighriskbrief.3.3.10 Ensuretheradiographerunderstandstoinformthecoverageteamwhenthesourcehasbeen

placedinpositionfortheradiographyshotandwhenthesourcehasbeenretractedbackintothecamera.

3.4 MonitortheRadiographyShot

3.4.1 Notifyoperations,security,andplantsitethatradiographyisabouttocommence.3.4.2 RPSupervisionprovidingoversightforradiographyshouldhavenootherresponsibilitieswhile

radiographyistakingplace.3.4.3 Performboundarysurveyswhenthesourcehasbeenexposed.

a. NotifyRPsupervisionifthedoserateexternaltothepostedRadiationAreais>2mrem/houraboveinitiallyestablisheddoseratesinthearea.

3.4.4 Iftelemetryoraremotemonitoringinstrumenthasbeensetup,verifywhenthesourcehasbeenretractedtoafullyshieldedposition.a. Ensurethecoverageteamhasbeeninformedwhenthesourceisnolongerexposed.

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b. RPsurveysdonotalleviatetherequirementfortheradiographertosurveythecameratoverifythesourcehasbeenfullyretractedintothecamera.

3.4.5 Ensurenooneentersthepostedradiographerboundaryunlessapprovedinaccordancewithsection2.2

3.4.6 Maintaincommunicationwithboundaryguards.StopWorkifaboundarybreachoccurs.3.4.7 Ensureboundarysurveysaredocumented.3.4.8 EnsurethatcommunicationsaremaintainedinaccordancewiththeRTshotplan.

3.5 RestoreArea

3.5.1 Checkdosesreceivedbytheradiographerandassistant(s)toensureunplanneddoseshavenotoccurred.

3.5.2 Removeboundaries,posting,andbarrierguards.a. Ensureboundariesandpostingsrequiredduetoplantradiologicalconditionsremainin

place.Documentasurveyofcurrentradiologicalconditions.3.5.3 Performaradiationsurveyoftheexteriorofthestoragedevicetoverifythesourceisfully

shieldedandphysicaldamageisnotapparent.a. Documentthesurveypersiteprocedures.b. NotifyRPsupervisionifacceptableconditionsarenotverified.

3.5.4 InformtheOperationsShiftManagerthattheradiographyshothasbeencompletedandaccessintotheareahasbeenrestored.

3.5.5 Provideescortofthesourcetothestoragelocationwiththeradiographer.a. Surveythestorageareaanddocumenttheresultspersiteprocedures.

3.6 Emergencyresponseactions

3.6.1 Radiographysourcesaremechanicaldeviceswhichcanfail.Whiletheradiographylicenseehastheresponsibilityforrecoveryofthedevicethefollowingactionsshouldbetakenimmediatelywhenasourcefailurehasoccurred.a. Stopworkandplacesourceinsafeconditionifpossible.b. Ensurepersonnelarenotinanareaofincreaseddoseratesduetothefailureofthedevicec. Validatepersonneldosed. Validateradiologicalboundariesandensureboundaryguardsarealerttomaintaining

securityoftheareae. NotifyRPMandSiteManagementasdefinedbythecommunicationsplan

3.6.2 TheRadiographerRadiationSafetyOfficerhastheresponsibilityforthedevelopmentofarecoveryplan.

3.6.3 ThesiteRadiationProtectionManagerwillconcurwiththeplanandprovidesupportasnecessary.

3.6.4 Ensureallsurveysperformedduringtheeventaredocumentedonsiteforms.

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4.0 ClarifyingNotes

1 Radiationlimitsonstoragecontainersandsourcechangersareprovidedin10CFR34.21.Removablecontaminationontheexteriorofthecameraindicatespotentialsourceleakage.

2 10CFR37requiresadditionalphysicalprotectionmeasuresandsecurityzonesifasourceexceedsoranaggregateofsourcesinanareaexceedCategory1orCategory2limits.ThevaluesspecifiedareCategory2limits.Category1limitsareafactorof100higher.

3 ARadiographyShotPlanisdevelopedandapprovedbyRPmanagementtoprovideahighlevelofcommunicationandcoordinationtoensuretheprocessisconductederrorfree.TheformatandcontentofashotplanmayvaryamongplantsbutshouldalwaysdescribethebasicinformationsiteorganizationsneedtopreventexposuresandshouldcontainalloftheelementslistedinAttachment4.TheRadiographyShotPlanisacollaborativeeffortamongtheradiographer,RP,Security,Operations,Engineering(NDE)andPlanning&Scheduling.

4 Theradiographerandassistant(s)arerequiredbytheradiographylicensetomaintaincontinuousdirectvisualsurveillanceoftheoperationtoprotectagainstunauthorizedentryintoahighradiationareaasdefinedin10CFR20.

5 Insomesituationsitmightnotbepossibletoestablishtheboundaryat<2mrem/hrduetoplantconfigurationorcomponentsinthearea.TheRPMshouldapprovetheestablishmentoftheboundaryatanyotherdoserate.

5.0 References

5.1 NISP-RP-02,RadiologicalPostingandLabeling

5.2 NISP-RP-13,RadiologicalProtectionGlossary

5.3 10CFR34

5.4 10CFR37

5.5 EPRINondestructiveEvaluation:RecommendedPracticesforMaintainingRadiationSafetyofRadiographicOperationsataNuclearPlant.Technicalupdatereport1022356

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Attachment1:RadiographyChecklist-Sample

RequiredStepsPriortoCommencingRadiography Initials/Date

1. ReviewandapprovalofRadiographyshotplanbyRPM.

2. Ensureradiographyhasbeenfactoredintothestationschedulesoimpactswithotherworkgroupsisunderstoodandcommunicated.

3. ConductahighriskbriefthatincludesALLpersonnelinvolvedinRadiographytoincludeRadiographers,JobSupervisor,RPTechnicians,andBoundaryGuards.

a. RadiographySourceType&Activityb. Radiographyshotlocationandcomponentc. Identifythesinglepointofcontactforradiationprotectionand

radiographyd. RequirementtonotifyShiftOperationsManagerbeforeandafter

eachexposuree. Theshotplan,toincludeequipmentlayout,andexpecteddoserates

onorneartheradiographyequipmentduringtheshot(s)asappropriate

f. Mitigatingactionsifradiographymaycreateanunshieldedexposure(e.g.largeopenareas)

g. NumberofExposuresandDurationh. RWPandProcedureRequirementsi. ApplicableIndustryOperatingExperiencej. ThepotentialforSkyShineandassociatedmitigatingactionsk. TheimportanceofALARAandlowdosewaitingareasl. BoundaryLocation(s),areastobeaffectedm. BoundaryGuardassignment,responsibilitiesandunderstandingthat

NOPERSONNELmaycrossboundarywithoutRadiographerandRPTpermission

n. UnusualOccurrencesandRequiredActionso. ResponsetoDosimeteralarms,includinganticipatedalarmswhen

thesourceisbeingexposed.p. 3waycommunicationbetweenallinvolvedpartiesq. Stopworkcriteriar. RequiredDosimetryforallpersonnel

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Attachment1:RadiographyChecklist(continued)

4. TheRadiographerandRadiationProtectioncompleteawalkdownofall

areaswithintheradiographyboundaryandensureunauthorizedpersonnelareclearedfromALLareasenclosedbythesebarriersincludingroofs.

5. Communicationscompletedtoplantorganizationasrequiredbytheradiographyshotplan

6. Boundaryguardshavebeenverifiedtobeinplaceandunderstandrollforthatposition.

7. Surveyscompletedanddocumentedwhensourceisexposed

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Attachment2:CurietoDoseRateProjectionChart

IR-192

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Attachment2:CurietoDoseRateProjectionChart(continued)

CO-60

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Attachment2:CurietoDoseRateProjectionChart(continued)

SE-75

10 Curies 20 Curies 30 Curies 40 Curies

Feet mR/hr Feet mR/hr Feet mR/hr Feet mR/hr

1.0 22,000 1.0 44,000 1.0 66,000 1.0 88,000

*35.0 18.0 *35.0 35.9 *35.0 53.9 *35.0 71.8

14.8 100 21.0 100 25.7 100 29.7 100

66.3 5 93.8 5 114.9 5 132.7 5

104.9 2 148.3 2 181.7 2 209.8 2



1.0 110,000 1.0 132,000 1.0 154,000 1.0 176,000

*35.0 89.8 *35.0 107.8 *35.0 125.7 *35.0 143.7

33.2 100 36.3 100 39.2 100 42.0 100

148.3 5 162.5 5 175.5 5 187.6 5

234.5 2 256.9 2 277.5 2 296.6 2



1.0 198,000 1.0 220,000 1.0 242,000 1.0 264,000

*35.0 161.6 *35.0 179.6 *35.0 197.6 *35.0 215.5

44.5 100 46.9 100 49.2 100 51.4 100

199.0 5 209.8 5 220.0 5 229.8 5

314.6 2 331.7 2 347.9 2 363.3 2



1.0 286,000 1.0 308,000 1.0 330,000 1.0 352,000

*35.0 233.5 *35.0 251.4 *35.0 269.4 *35.0 287.3

53.5 100 55.5 100 57.4 100 59.3 100

239.2 5 248.2 5 256.9 5 265.3 5

378.2 2 392.4 2 406.2 2 419.5 2

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Attachment3:BoundaryGuardBriefingSheet

Boundary Guard Function The Boundary Guard (BG) provides an additional layer of protection during radiography activities to prevent an over exposure to radiation due to an inadvertent entry to the radiography restricted area. The RP Supervisor will have boundaries (ropes, doors, ladder locks) established that identify the radiography restricted area. The Boundary Guard assures that no personnel enter the area once established unless approved by the RP Supervisor. Boundary Guard – Rules of the Boundary 1. NOONEis allowed to reach OVERor UNDERthe RT boundary at ANYtime for ANYreason during radiography unless authorized and under the direct surveillance of Radiation Protection. 2. Boundary Guards WILLNOTengage in IDLEconversation with anyone as this can pose a distraction. 3. Boundary Guards WILLNOTleave the area or request to move for any reason unless relieved by an individual assigned by the RP Supervisor. This includes site assembly, site evacuation, etc. There are two exceptions to this rule: a. Imminent danger to self; notify the RP Supervisor and retreat to a safe position. b. Someone approaches on the wrong side of the boundary ORan individual decides to cross after being challenged. In this situation the Boundary Guard shall:

• Communication with radiography team to stop work • Get the individual on the safe side of the boundary: • Notify the RP Supervisor • Obtain information from the individual inclusive of name, work group, supervisor and

badge number. 4. Boundary Guards WILLNOTleave the site at the end of the scheduled shift unless released by the RP Supervisor. 5. Boundary Guards will normally be scheduled for a rotationat the guarded location that does not result in mental fatigue that would challenge boundary surveillance. 6. Boundary Guards should be positioned such that visual surveillance of the boundary can be implemented and in the lowest dose rate possible.

Signed_____________________________________

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Attachment4:GuidelinesforDevelopmentofRadiographyShotPlans

Aradiographyshotplanshouldbedevelopedusingthefollowingguidelines.TheshotplanshouldbedevelopedwithinputfromallstakeholdersincludingRadiationProtection,Radiographers,OperationsandSecuritypersonnel.Theplanshouldbewellcommunicatedtothestationandeachgroupshouldclearlyunderstandtheirrolesandresponsibilities.Theplancanbedocumentedinanyformattomakeeffectivecommunicationpossible.

1. Determinetheisotopeandcuriecontentofthesourcebeingused.UsingthechartsinAttachment2,CurietoDoseProjectionChart,determinetheexpecteddoserates.

2. Definetheprojectedboundariesbasedonthedoserateprojections,directionoftheshots,andshielding.Takeintoconsiderationskyshineandpossibleimpactstoroofareasortheoperationofoverheadcranes.Whendecidingthelocationoftheboundariesconsiderhumanfactorssuchastheabilitytoseethepostingandpositionofboundaryguards.

3. Operationsshouldevaluatethepotentialimpactstoplantequipmentconsideringthelocationanddirectionoftheradiographyexposures.

4. Determinetheexpecteddurationoftheactivity.Takeintoconsiderationthenumberofshotsrequiredandthetimeforsetupandremovalofboundaries.Thiswilldeterminehowlongtheareawillberestrictedandisimportanttooperationsandsecuritypersonneltoassesstheimpactstotheirroutineoperations.

5. Determinethenumberofboundaryguardsrequiredtomaintaincontrolofthearea.Aboundaryguardshouldbepositionedatallpotentialentrypoints.Additionalreliefpersonnelmaybeneededdependingontheduration.

6. Determinethenumberofradiationprotectiontechniciansnecessarytoperformsurveysoftheboundarieswhenthesourceisexposed.

7. Determinethecommunicationmethodsthatwillbeusedbetweenradiographer,radiationprotection,andboundaryguards.Validatethattheequipmentisavailableandworksintheareawheretheradiographywilltakeplace.

8. Developacommunicationplanthatensuresthesiteisawareoftheradiologicalriskwhenperformingradiography,theareasoftheplantwhichareaffected,whenareaswillberestricted,andwhenaccessisrestored.Significantstakeholderssuchasoperationsandsecurityshouldkeptinformedonthestatusofradiographyasitistakingplacethrougheitherplantannouncementsordirectcommunications.

9. Determinelowdosewaitingareasforeachmemberoftheteam.10. Ifavailable,determinewhereremotingmonitoringequipmentcanbelocatedtoeffectivelymonitor

radiography.11. DevelopaspecificRWPwhichcontainsthefollowing

a. Stopworkcriteriaincludingimmediateactionsthataretobetakenwhenstopworkordersareissued.

b. Alarmingdosimetersetpointsandexpectedresponsetoalarmsc. Contingencyactionsshouldthesourcemalfunctionduringoperation.

Documents

NISP-RP-09 Radiography Rev 0 03-04-17 Radiography.pdfcommunications tools such as the plant or outage schedule, risk assessment, or daily status sheets. When possible use plant layout