Metrodecom : JRC-Geel radionuclide metrology sector contribution to WP5 task 2

JRC-Geel is a partner in the EMRP-project named Metrodecom, Metrology for decommissioning nuclear facilities. The project focusses on the different aspects of metrology applied in the field of decommissioning of nuclear facilities. The commitments of the Radionuclide Metrology Sector of JRC-Geel (RN) are part of the work to be carried out in WP 5 Development of reference materials and standard sources. In Task 1 reference materials and standard sources for segregation of materials and for free release measurements needed to be produced and characterised. Task 2 consisted in the production and characterisation of reference materials and standard sources for radiochemical analysis. The first task of RN was to characterise blank graphite. This characterisation was done using the gamma-ray detectors located in our underground laboratory. The second task was the standardisation of a 151Sm and a 236U solution in the primary standardisation laboratory.