2018 Fall Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-2 Waste Disposal and Its Environmental Aspects

[1E07-12] Nuclear Waste

Wed. Sep 5, 2018 2:45 PM - 4:20 PM Room E (A34 -A Building)

Chair:Toru Nagaoka(CRIEPI)

3:45 PM - 4:00 PM

[1E11] Leaching behavior of radionuclides from irradiated BWR cladding

(1) Long-term immersion test and result of carbon 14 leaching behavior

*Yu Yamashita1, Katsumi Hosaka1, Masashi Ichikawa2, Tomofumi Sakuragi3 (1. Toshiba Energy Systems & Solutions, 2. Nippon Nuclear Fuel Development, 3. Radioactive Waste Management Funding and Research Center)

Keywords:TRU waste, Carbon 14, Fuel cladding, Leaching rate, Geological disposal

地層処分後の燃料被覆管からの炭素14等の核種浸出挙動を評価するため、処分環境を模擬した溶液中で約10年にわたって照射済みBWR被覆管の浸漬試験を実施した。浸漬期間の経過とともに核種浸出率は低下傾向を示し、現実的な浸出率データを蓄積することができた。