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Research and development programme on ADS in JAEA

原子力機構における加速器駆動未臨界システム(ADS)の研究開発計画

武井 早憲   ; 大内 伸夫 ; 佐々 敏信  ; 濱口 大; 菊地 賢司*; 倉田 有司; 西原 健司  ; 大林 寛生  ; 斎藤 滋   ; 菅原 隆徳  ; 田澤 勇次郎*; 手塚 正雄; 辻本 和文 ; 大井川 宏之 

Takei, Hayanori; Ouchi, Nobuo; Sasa, Toshinobu; Hamaguchi, Dai; Kikuchi, Kenji*; Kurata, Yuji; Nishihara, Kenji; Obayashi, Hironari; Saito, Shigeru; Sugawara, Takanori; Tazawa, Yujiro*; Tezuka, Masao; Tsujimoto, Kazufumi; Oigawa, Hiroyuki

原子力機構は長寿命放射性核種の核変換処理を目指した加速器駆動未臨界システム(ADS)の研究開発を進めている。原子力機構が提案するADSは、超伝導陽子加速器で熱出力800MWの鉛ビスマス冷却タンク型未臨界炉を駆動するものである。将来のADSの設計研究としては、超伝導陽子加速器用クライオモジュールの製作と試験、現存する加速器の運転データに基づく陽子加速器の信頼性評価などを行っている。J-PARCプロジェクトの核変換実験施設計画については、マイナーアクチノイド燃料を取り扱うための実験装置を含めた設計研究を進めている。

JAEA has been promoting the research and development (R&D) on accelerator-driven subcritical system (ADS) as a dedicated system for the transmutation of long-lived radioactive nuclides. The ADS proposed by JAEA is a lead-bismuth eutectic (LBE) cooled, tank-type subcritical reactor with a thermal power of 800 MW driven by a superconducting linac. The R&D activities can be divided into two categories: one is the design study and technical development for a future large-scale ADS, and the other is the experimental programme at the Transmutation Experimental Facility (TEF) under the J-PARC (Japan Proton Accelerator Research Complex) project. As for the design study of the future ADS, the reliability of the accelerator is being investigated based on the data analysis of existing linac facilities. As for the technical development of the superconducting linac, fabrication and tests of prototype cryomodule were carried out, and its good performance was demonstrated. As for the TEF development, design study including experimental device to handle minor actinide fuels is being conducted.

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