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濃縮ウラン溶解槽の遠隔検査装置の開発

Development of the remote inspection equipment for the enriched uranium dissolvers

照沼 朋広 ; 大関 達也 ; 福有 義裕

Terunuma, Tomohiro; Ozeki, Tatsuya; Fukuari, Yoshihiro

東海再処理施設に設置されている2基の溶解槽に、1982及び1983年に相次いで故障が発生した。この溶解槽は、高放射線量下に設置されており、人が容易に近づけないという理由から、遠隔操作による補修,検査装置を開発し補修を実施した。補修後は、溶解槽の健全性を確認するため、遠隔による検査を、年1回定期的に実施することとなった。さらに、従来の装置と比較し短時間で行える、定期検査のための遠隔検査装置を開発し使用している。

The two dissolvers installed in the Tokai reprocessing plant had failed occurred successively in 1982 and 1983. Then, remote-controlled equipment for repair and inspection has been developed because the dissolvers were installed under the high dose of radiation and cannot access easily. After repair of the dissolvers, the periodic inspection by remoteness is periodically carried out once per year for soundness confirmation of the vessels. Moreover, the remote inspection equipment for periodic inspection was developed, which time required for inspection is too short compared with former equipment.

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