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Decommissioning program for ATR-FUGEN nuclear power station

新型転換炉ふげんの廃止措置計画

佐野 一哉; 北村 高一; 手塚 将志; 水井 宏之; 清田 史功; 森下 喜嗣

Sano, Kazuya; Kitamura, Koichi; Tezuka, Masashi; Mizui, Hiroyuki; Kiyota, Shiko; Morishita, Yoshitsugu

新型転換炉ふげんは平成15年3月29日に運転を終了し、その後は安全かつ合理的な廃止措置の実現に向け、廃止措置の準備及び必要な技術開発を進めるとともに、改訂された原子炉等規制法に基づく初めてのケースとして国に対して廃止措置計画の認可申請を行い、平成20年2月12日に認可を取得した。本発表では、「ふげん」の廃止措置計画について、廃止措置の期間を、(1)使用済燃料搬出期間,(2)原子炉周辺設備解体撤去期間,(3)原子炉本体解体撤去期間,(4)建屋解体期間の4つの期間に区分して進める解体計画の概要,放射性廃棄物量の評価や廃止措置時の安全評価の概要等について報告する。

The operation of Advanced Thermal Reactor Fugen was terminated on Mar. 29th, 2003. After the operation, the preparative works and R&D have been conducted strenuously for the planning of the rational and safe decommissioning. The decommissioning program for Fugen was planed, based on the results of above works and R&D, and was applied to the government as a first case under the revised nuclear reactor regulation law. As a result, the program was approved on Feb. 12th, 2008. In this paper, the decommissioning program for Fugen was outlined, which are the dismantling process consists of four periods; (1) Spent fuel transportation, (2) Periphery facilities dismantlement, (3) Reactor dismantlement and (4) Building demolition, the amount of radioactive waste, the safety assessment etc.

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