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Stellarator nonlinearly saturated periodicity-breaking ideal magnetohydrodynamic equilibrium states

W.A. Cooper, D. López-Bruna, M.A. Ochando, F. Castejón, J.P. Graves, A. Kleiner, S. Lanthaler, H. Patten, M. Raghunathan, J.M. Faustin2018年被引用 2Nuclear FusionIF 3出版社

The relaxation of the constraint of periodicity imposed by the external confining magnetic field coils in a nominally 4-field period Helias advanced stellarator configuration produces weak periodicity-breaking deformations of the plasma. The corrugations are driven by the interaction of the pressure gradient with the magnetic field line curvature and correspond to saturated ideal magnetohydrodynamic interchanges with a mode structure dominated by nonresonant Fourier components. The conditions of quasi-isodynamicity of the Helias reactor system investigated are not significantly altered by the periodicity-breaking distortions.

日本語訳

外部磁場コイルによって課される周期性の制約の緩和は、公称4周期ヘリアス先進ステラレーター配置において、弱い周期性破壊プラズマ変形を生じさせる。この周期的起伏(コルゲーション)は、圧力勾配と磁力線曲率との相互作用によって駆動され、非共鳴フーリエ成分によって支配されるモード構造を有する飽和理想磁気流体力学的不安定性(インターチェンジモード)に対応する。調査対象のヘリアス炉システムにおける準等力学性の条件は、周期性破壊歪みによって有意に変化することはない。

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MagnetohydrodynamicsStellaratorIdeal magnetohydrodynamics
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