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Report No.

Development of inventory calculation modules using ORIGEN-S for decommissioning

Matsuda, Norihiro ; Konno, Chikara ; Ikehara, Tadashi; Okumura, Keisuke ; Suyama, Kenya*

Data handling modules for the radioactivity calculation code, ORIGEN-S, are developed for the reliable evaluations of radioactivity inventory. By using these modules, an activation cross-section data library for the ORIGEN-S code is updated easily and effectively based on a facility-specific neutron spectrum and multi-group neutron activation cross-section library for decommissioning of nuclear facilities, MAXS2015. In order to guarantee the reliability of the radioactivity calculations, functions of data verification in a visual way and numerical comparison between before and after the data processing are also prepared.



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