RTP: RADIONUCLIDES INVENTORIES CALCULATION USING ORIGEN CODE

Abstract. ORIGEN is a widely used computer code for calculating the buildup, decay, and processing o f radioactive materials. The ORIGEN code was created by famous and reputable nuclear institution in United States, Oak Ridge National Laboratory (ORNL). For a nuclear reactor, either it is a nuclear power reactor or nuclear research reactor, the radionuclide inventories data is important. This data is acquired by performing source term modelling. A fresh nuclear fuel could not cause any harm to human. However, used nuclear fuel could pose danger threat to human. The fission products particularly long-lived radionuclides i.e.H-3, Co-60, Cs-137 that are generated inside the fuel yield a significance amount o f radioactivity. Therefore, there is no doubt that for a facility having a nuclear reactor, it is vital to anticipate the amount o f fission products inside the fuel together with the radioactivity that it may emit. Sufficient information on the radionuclide inventories allows the facility to provide adequate shielding protection and ensure safe transportation o f nuclear fuel, when it is needed. This paper briefly describes application o f ORIGEN code to calculate the radionuclides inventories o f TRIGA-PUSPATI REACTOR (RTP) fuel