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Status and prospect of the JT-60SA project

JT-60SAの現状と展望

石田 真一; Barabaschi, P.*; 鎌田 裕; JT-60SAチーム

Ishida, Shinichi; Barabaschi, P.*; Kamada, Yutaka; JT-60SA Team

JT-60SAは、ITERへの支援研究と原型炉に向けた補完研究を行い、ITERと原型炉のための物理課題の解決に取り組むことにより、核融合エネルギーの早期実現に貢献することを目標とする。JT-60SAの建設と運転は、幅広いアプローチ活動における日欧協力によるサテライトトカマク計画と日本の国内計画の下に行われる。2007年から約1年かけてプロジェクトの再設定を完了させ、装置の本格的な建設段階に入った。2007年から日欧実施機関間による調達取決めが順次締結され、日本の調達分担であるポロイダル磁場コイル,真空容器及び真空容器内機器等の部品調達は既に始まっており、今年からは欧州の調達分担であるトロイダル磁場コイル等の部品調達が開始される。本講演では、新設計の概要と調達活動の現状及び運転計画等への展望について講演する。

The mission of the JT-60SA project is to contribute to the early realization of fusion energy by supporting the exploitation of ITER and research towards DEMO by addressing key physics issues associated with these machines. The JT-60SA will be capable of confining break-even equivalent class high-temperature deuterium plasmas at a plasma current I$$_{p}$$ of 5.5 MA and a major radius of 3 m lasting for a duration longer than the timescales characteristic of plasma processes, pursue full non-inductive steady-state operation with high plasma beta close to and exceeding no-wall ideal stability limits, and establish ITER-relevant high density plasma regimes well above the H-mode power threshold. Re-baselining of the project was completed in late 2008 which has been worked on since late 2007, where all the scientific missions are preserved with the newly designed machine to meet the cost objectives. The JT-60SA project made a large step forward towards its construction, which now foresees the first plasma in 2016. Construction of JT-60SA begins at Naka in Japan with launching the procurement of PF magnet, vacuum vessel and in-vessel components by Japan. In this year, the procurement of TF magnet, cryostat and power supply will be launched by Europe.

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パーセンタイル:2.56

分野:Nuclear Science & Technology

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