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燃料デブリの特性と取り扱い上の課題; 模擬デブリ研究の知見による考察

Characteristics of fuel debris and challenges in handling; Discussion based on knowledge of simulated fuel debris research

鷲谷 忠博 ; 小山 真一  ; 高野 公秀 ; 三次 岳志 

Washiya, Tadahiro; Koyama, Shinichi; Takano, Masahide; Mitsugi, Takeshi

福島第一原子力発電所(1F)廃炉における燃料デブリの取り出しでは、その特性に応じた取り出し工具、取り出し方法が検討されている。また、取り出し後の安定な保管や処理・処分のためには、燃料デブリの特性や化学的な安定性をよく理解し、適切な方策を選ぶ必要がある。本稿では、これまでの様々な検討でわかってきた燃料デブリの特性と、その取り扱い上の課題を紹介する。

For the retrieval of fuel debris in the 1F decommissioning, a retrieval tool and a retrieval method according to the characteristics of fuel debris are being studied. In addition, for stable storage, treatment, and disposal after retrieval, it is necessary to fully understand the characteristics and chemical stability of fuel debris and select appropriate measures. In this paper, we will introduce the characteristics of fuel debris that have been discovered in the previous studies and the problems in handling them.

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