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Development of safeguards and maintenance technology in Tokai Reprocessing Plant

東海再処理工場(TRP)における保障措置及び保守技術の開発

山村 修; 山本 隆一; 野村 茂雄; 藤井 靖彦*

Yamamura, Osamu; Yamamoto, Ryuichi; Nomura, Shigeo; Fujii, Yasuhiko*

東海再処理工場は、1977年9月ホット試験開始から2006年10月末まで1123トンの使用済燃料を処理してきた。この30年間の運転を通し、IAEAの保障措置の適用にあたっても、東海再処理工場は非核兵器国における保障措置概要の実施,国際的な信頼性の向上に大いに貢献した。また、この間の運転を通し、多くの技術的困難を克服し、保守技術の確立を果たし、安定で信頼性のある運転を確保してきた。本報では東海再処理工場の開発してきた保障措置及び保守技術が六ヶ所再処理施設に反映され、かつこれまでの知見が次世代再処理技術の構築に貢献し得る点を述べる。

The application of safeguards to the Tokai Reprocessing Plant(TRP), the world's first reprocessing plant with a sole objective of commercial use, was made on try and error basis because it was the first experience for both the plant and the inspection sides. Through thirty years' faithful cooperation to the IAEA-initiated safeguards program, TRP contributed also to the developments of the international credibility upon the concept of safeguards system of Reprocessing plant in non-nuclear weapon countries. TRP also has been processing over 1,123 ton of spent fuels from the beginning of its active operation in Sept.'77. For 30 years operation of TRP, many technological problems have been overcome to obtain the stable and reliable operation. The process for establishments of maintenance technology in TRP was evaluated through the analysis of significant plant equipment failures reported to the Government and so on. Discussion in this paper is also emphasized that the safeguards system and the maintenance technologies developed by TRP have been applied to the first Rokkasho commercial reprocessing plant (RRP). Furthermore, this operation knowledge base can contribute to the design and construction of the next generation reprocessing plant.

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パーセンタイル:29.54

分野:Nuclear Science & Technology

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