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Sawtooth-driven neoclassical tearing modes in HL-2A plasmas

Jiaqi Wang, Chijie Xiao, Xiaogang Wang, Xiaoquan Ji, Yi Liu2012年Plasma Physics and Controlled FusionIF 2.2出版社

Neoclassical tearing modes (NTMs) of m = 2, n = 1 induced by sawtooth crashes in tokamak plasmas are studied based on the results of HL-2A tokamak experiments. A model of sawtooth-driven Δ' for NTMs due to the toroidal coupling effect is proposed and applied to the observed growth of 2/1 islands with the sawtooth oscillation observed in the HL-2A experiment. The neoclassical tearing island growth is calculated based on the model and the result is found to be in good agreement with experimental data.

日本語訳

新古典テアリングモード(NTM)のうち、トカマクプラズマにおける鋸歯状振動崩壊によって誘起されるm = 2、n = 1モードについて、HL-2Aトカマク実験の結果に基づいて研究を行った。トロイダル結合効果による鋸歯状振動駆動型Δ'のNTMモデルを提案し、HL-2A実験で観測された鋸歯状振動に伴う2/1アイランドの成長に適用した。このモデルに基づいて新古典テアリングアイランドの成長を計算した結果、実験データと良好な一致を示した。

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Tearing modeSawtooth oscillationHL-2ANeoclassical tearing mode
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