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Overview of spherical tokamak research in Japan

Y. Takase, A. Ejiri, T. Fujita, N. Fukumoto, A. Fukuyama, K. Hanada, H. Idei, M. Nagata, Y. Ono, H. Tanaka2017年被引用 6Nuclear FusionIF 3出版社

Nationally coordinated research on spherical tokamak is being conducted in Japan. Recent achievements include: (i) plasma current start-up and ramp-up without the use of the central solenoid by RF waves (in electron cyclotron and lower hybrid frequency ranges), (ii) plasma current start-up by AC Ohmic operation and by coaxial helicity injection, (iii) development of an advanced fuelling technique by compact toroid injection, (iv) ultra-long-pulse operation and particle control using a high temperature metal wall, (v) access to the ultra-high-β regime by high-power reconnection heating, and (vi) improvement of spherical tokamak plasma stability by externally applied helical field.

日本語訳

日本では、球状トカマクに関する全国的な協力研究が進められている。最近の成果には以下のものがある:(i) 電子サイクロトロン周波数帯および低域混成周波数帯のRF波による、中心ソレノイドを用いないプラズマ電流の立ち上げと立ち上げ後の電流増幅、(ii) ACオーミック運転および同軸ヘリシティ入射によるプラズマ電流の立ち上げ、(iii) コンパクトトロイド入射による先進的な燃料供給技術の開発、(iv) 高温金属壁を用いた超長時間パルス運転と粒子制御、(v) 高パワーリコネクション加熱による超高β領域への到達、および(vi) 外部印加ヘリカル磁場による球状トカマクプラズマの安定性向上。

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Spherical tokamak
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