Belt Conveyor Free ReleaseMeasurement System (FREMES-BM100)Clearance of Bulk Materials (up to 100 to/h) contaminated withan unknown amount of nuclides

Purpose of the belt conveyorscanning system

> Radiological characterization of bulk material Large quantities of excavated soil, concrete rubble or salt grit are fed into a crusher discontinuously for generation of required material properties and controllable, continuous material flow for measurement

> Classification of contaminated bulk material Continuous measurement (Gamma spectroscopy, Total-Alpha and Total-Beta) to provide all information for radiological characterization, in order to optimize efforts in disposal e.g. to: •Free release •Limited release / utilization on site •Radioactive waste

> Subsequent segregation and filling of the material According to the classification of the measured material, dosage and segregation, as well as filling into subsequent containers are performed afterwards

> Generation of sophisticated documentation and comparison to regulatory limits The derived characteristics of the measured material are gathered automatically to create documentation in a desired format, so that they can be easily set into relation to given limits and thresholds

> No secondary waste generated

> Precise examination of bulk material• Detection of high- and low energy gamma emitters• Detection of Alpha- and Beta-emitters• Verification of the expected nuclide vector

> Evaluation of spatial activity distribution by connection of radiological characterization with the excavation map

> No need for process media

> Proven toughness for construction site suitability

> Volume reduction with regard to expensive disposal routes

> Gamma spectrum

> Total Alpha and Total Beta count rate

> Information about homogeneous material

> Expected nuclide vector

> Radiological inventory for each batch: Specific activities, mass etc. with confirmed nuclide vector

> Highest precision reasonably achievable depending on desired throughput

> Radiological characterization of bulk materials (concrete rubble, soil or salt grit)

> High throughput: up to 100 to/h possible

> Modular design to provide optimal results for 5 to/h to 100 to/h throughput by providing the required measurement precision for given nuclide vectors

Achieved benefit of applying the belt conveyor scanning system

Measurement input Obtained information

FREMES-BM100 provides

NUKEM TechnologiesIndustriestr. 13, 63755 Alzenau, Germany, T +49 (0)6023 91 1680, F +49 (0)6023 911188E info@nukemtechnologies.de, I www.nukemtechnologies.de

Technical Data:Throughput up to 100 tons per hourBatch size 1000 kgDetection limit 3.6 Bq/kg for U-235

Dosage and filling

Transportation

Measurement modules for Total-Alpha and Total-Beta-emission

Measurement modules for Gamma spectrometry

Material feeding and crushing

General layout of a belt conveyor scanning system