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Coupling of internal m=1 and m=2 modes at density limit disruptions in the T-10 tokamak

P.V. Savrukhin, E.S. Lyadina, D.A. Martynov, D.A. Kislov, V.I. Poznyak1994年被引用 44Nuclear FusionIF 3出版社

A soft X-ray imaging system consisting of three arrays of silicon surface barrier diodes is applied to the tomographic analysis of internal plasma perturbations in the T-l0 tokamak (R0=1.5 m, a=0.32 m). It is found that density limit disruptions in a plasma with a high safety factor at the edge (qa=3.5-4.5) are associated with joint rotation of the m=2, n=1 and m=1, n=1 modes, overlapping at the energy quench stage. Electron cyclotron resonance heating is used to prevent density limit disruptions or to recover stable operation of the discharge after the energy quench at the density limit

日本語訳

3つのシリコン表面障壁ダイオードアレイからなる軟X線イメージングシステムを、T-l0トカマク(R0=1.5 m、a=0.32 m)における内部プラズマ擾乱のトモグラフィ解析に適用した。周辺部の高い安全係数(qa=3.5-4.5)を持つプラズマにおける密度限界ディスラプションは、m=2、n=1およびm=1、n=1モードの連成回転と関連し、エネルギー急減段階でそれらが重なることが見出された。電子サイクロトロン共鳴加熱は、密度限界ディスラプションを防止するため、または密度限界におけるエネルギー急減後に放電の安定運転を回復するために用いられる。

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Plasma disruptionDensity limit
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