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Fuel cycle for MA transmutation based on nitride fuel and pyrochemical reprocessing

窒化物燃料と乾式再処理に基づくMA核変換用燃料サイクル

高野 公秀 

Takano, Masahide

窒化物燃料と乾式再処理に基づくマイナーアクチノイド(MA)核変換用燃料サイクルに関して、その概念と研究開発状況について紹介する。加速器駆動システム(ADS)用のMA含有窒化物燃料の製造技術開発、熱物性データの取得とデータベース化、窒化物燃料用のふるまい解析コード開発、燃料中に蓄積するヘリウムの問題、窒素15同位体濃縮技術を取り上げて既存成果と今後の照射試験を目指した研究計画を述べる。

Concept and R&D status of the fuel cycle for MA transmutation based on nitride fuel and pyrochemical reprocessing are introduced in this lecture. Outline of our achievements in fabrication technologies for MA-bearing nitride fuel, thermal properties and establishment of the database, development of the nitride fuel performance code, issues of helium accumulation, and enrichment of nitrogen 15 is shown with the future plan for irradiation test and post-irradiation examination.

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