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Report No.

Criticality safety evaluation in Tokai reprocessing plant

Shirai, Nobutoshi ; not registered ; not registered; Shirozu, Hidetomo ; Sudo, Toshiyuki ; Hayashi, Shinichiro; not registered

Criticality limits for equipments in Tokai Reprocessing Plant which handle fissile material solution and are under shape and dimension control were reevaluated based on the guideline No.10 "Criticality safety of single unit" in the regulatory guide for reprocessing plant safety. This report presents criticality safety evaluation of each equipment as single unit. Criticality safety of multiple units in a cell or a room was also evaluated. The evaluated equipments were ones in dissolution, separation, purification, denitration, Pu product storage, and Pu conversion processes. As a result, it was reconfirmed that the equipments were safe enough from a view point of criticality safety of single unit and multiple units.



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