[3F05-09] Decommissioning Technology

[3F06] Standard models of commercial nuclear reactor in Japan for using radioactivity calculations

(2) Preparation of BWR standard model

*Kazuaki Kosako¹, Takuma Noto¹, Hayato Takeshita¹, Yuki Sasaki¹, Kazuyuki Torii¹ (1. Shimizu Corporation)

Keywords:BWR, Decommissioning, Reactor pressure vessel, Reactor container vessel, Reactor building, Radioactivity, Radioactivation calculation, Neutron transport calculation

To carry out the decommissioning accurately, it is necessary that the radioactivation calculation uses the results of neutron transport calculation in consideration of an individual difference of power plant. We prepared the standard model for the neutron transport calculation targeting at boiling water reactors (BWR) that 15 plants became the decommissioning. Objects of the BWR standard model are the main components in reactor pressure vessel, container vessel, major pipes, and reactor building.