[2D10-15] Development for Fuel Debris Treatment 1

[2D12] Development of Fuel Debris Canister

(3)Evaluation of Fuel Debris Condition in a Canister for Criticality Safety

*Seiji Yamamoto³, Hideaki Uchiyama¹, Toshihiro Matsuoka², Tetsuro Takeshita³, Chihiro Narazaki³, Yoshiki Ida³, Manabu Ueno⁴ (1. International Research Institute for Nuclear Decommissioning, 2. International Research Institute for Nuclear Decommissioning / Mitsubishi Heavy Industries, Ltd., 3. International Research Institute for Nuclear Decommissioning / TOSHIBA CORPORATION, 4. International Research Institute for Nuclear Decommissioning / Hitachi-GE Nuclear Energy, Ltd.)

Keywords:fuel debris, canister, subcriticality

Water can be brought in together with fuel debris into the canister. As examination of fuel debris storage condition when enlarging the inner diameter of fuel debris canister while maintaining the subcritical state, criticality analysis and water drainage test were carried out focusing on limitation of residual water.