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Progress in JT-60SA construction, research plan and research activities

JT-60SAの建設、研究計画及び研究活動の進展

吉田 麻衣子

Yoshida, Maiko

核融合炉の早期実現に向けて、ITERの技術目標達成のための支援研究と原型炉に向けたITERの補完研究を行なうJT-60SAプロジェクトが、日欧の幅広いアプローチ活動のサテライトトカマク計画とわが国のトカマク国内重点化装置計画の合同計画により進められている。2019年4月のファーストプラズマに向けて、日欧協力のもと、JT-60SAの建設はスケジュール通りに進められており、真空容器等の組み立て作業が始まった。JT-60SA建設と平行して、JT-60SAの研究計画(JT-60SAリサーチプラン)の検討・策定が日欧協力により進められており、現在、40ヶ国から330名を越える研究者がこの策定活動に加わっている。また、JT-60SAリサーチプラン策定のためのプラズマ予測研究や計測器検討が精力的に進められている。

Mission of the JT-60SA project is to contribute to early realization of fusion energy by addressing key issues for ITER and DEMO. For the first plasma in March 2019, the manufacture of the main components has been going well on schedule both in the EU and Japan, and the JT-60SA project is now entering a new phase as it moves from manufacture of components to assembly. Parallel to the JT-60SA construction, the research plan for JT-60SA has been discussed in the fusion communities in Japan and Europe (more than 330 researchers from 40 institutes) to deepen and sharpen the research strategy for JT-60SA. Experiments in JT-60SA will be conducted over a wide range of operational regimes including ITER and DEMO relevant regimes. Both physics understanding of high performance plasmas (leading to plasma modeling) and developing plasma control systems are critical issues for ITER and DEMO that should be undertaken in JT-60SA.

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