2017 Fall Meeting

Presentation information

Oral presentation

IV. Nuclear Fuel Cycle and Nuclear Materials » 405-2 Waste Disposal and Its Environmental Aspects

[3I10-13] Corrosion and Gas

Fri. Sep 15, 2017 3:50 PM - 4:55 PM Room I (C310 - C Block)

Chair:Atsushi Mukunoki (JGC)

4:20 PM - 4:35 PM

[3I12] Estimation of source term for spent fuel disposal

(3)Development of methodology on estimation of fission gas release ratios for Japanese spent fuels

*Masanobu Nagata1, Kuniaki Akahori2, Akira Kitamura1, Yukio Tachi1, Takahiro Chikazawa2 (1. Japan Atomic Energy Agency, 2. Mitsubishi Materials Corporation)

Keywords:Spent fuel, Direct disposal, Source term, Instant release, Fission gas release ratios

処分容器の閉じ込め機能喪失後に生じる使用済燃料から地下環境への放射性核種の瞬時放出挙動について、その評価指標のひとつである国内使用済燃料の核分裂生成ガス放出割合の導出手法を検討した。