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Self organization of high βp plasma equilibrium with an inboard poloidal magnetic field null in QUEST

Kishore Mishra, H. Zushi, H. Idei, M. Hasegawa, T. Onchi, S. Tashima, S. Banerjee, H. Hanada, H. Togashi, T. Yamaguchi2015年被引用 13Nuclear FusionIF 3出版社

Successful production of high βp plasmas (εβp ⩾ 1) fully non-inductively (NI) and their long pulse sustainment with the help of modest power (<100 kW) of electron cyclotron waves is demonstrated. High βp plasmas are found for the first time to be naturally self organized to form a stable natural inboard poloidal field null (IPN) equilibrium. A critical βp value is identified, which defines the transition boundary from inboard limiter (IL) to IPN equilibrium. A new feature of plasma self organization is evidenced, which enhances its negative triangular shape to sustain high βp. These results show a relatively simple method to produce and sustain high βp plasma close to the equilibrium limit in a stable configuration exploiting its self organization property.

日本語訳

高βpプラズマ(εβp ⩾ 1)の完全非誘導(NI)での生成成功と、電子サイクロトロン波の穏やかなパワー(<100 kW)の助けを借りた長時間パルス維持が実証された。高βpプラズマは、初めて、安定な自然内側ポロイダル磁場零点(IPN)平衡を形成するように自然に自己組織化されることが見出された。臨界βp値が特定され、それが内側リミター(IL)からIPN平衡への遷移境界を定義する。プラズマ自己組織化の新たな特徴が実証され、それは高βpを維持するためにその負三角形度形状を増強する。これらの結果は、自己組織化特性を活用して、平衡限界に近い高βpプラズマを安定な配位で生成・維持する比較的単純な方法を示す。

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quest高精度(タイトル一致)

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Plasma equilibriumQUEST
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