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Actively cooled plasma facing components in Tore Supra

Pascal Garin, on behalf of Tore Supra team2001年Fusion Engineering and DesignIF 1.7出版社

AbstractThe conception and realisation of a full protection of the vessel against heat and particle flux at the plasma edge is certainly one of the most challenging issues on the route to a steady-state thermonuclear fusion reactor. Tore Supra has accomplished a pioneer work since 1988 by the early installation of a set of high heat flux actively cooled components (modular limiters, inner wall) in the perspective of the realisation of long pulse steady-state plasma discharges. As 2 min duration record discharges were obtained in 1996 with 280 MJ of circulated energy, a wealth of R&D was accomplished on a variety of concepts for plasma facing components (PFCs), in close collaboration with European industry. This R&D was aimed primarily at developing PFCs with large power density extraction capacity (i.e. 10 MW/m2) and with reliable bonding of the facing material to the heat sink. The series fabrication of a large number of high performance pieces was undertaken and is now mid-way to completion.

日本語訳

要旨 プラズマ端部における熱流束および粒子流束に対する容器の完全な保護の構想と実現は、定常熱核融合炉への道のりにおいて確かに最も困難な課題の一つである。Tore Supraは、1988年以来、長時間パルス定常プラズマ放電の実現の見地から、高熱流束の能動冷却コンポーネント(モジュール式リミッター、内壁)の早期設置により先駆的な作業を達成してきた。1996年に、循環エネルギー280 MJを伴う2分間の記録的な放電が達成され、欧州産業界との緊密な協力のもと、プラズマ対向コンポーネント(PFC)の多様な概念に関する豊富な研究開発が達成された。この研究開発は、主に、大きな電力抽出能力(すなわち10 MW/m2)を有し、かつ対向材料とヒートシンクとの信頼性の高い接合を有するPFCの開発を目的としていた。高性能部品の一連の製造が着手され、現在その完了は半ばに達している。

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