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On free boundary instabilities induced by a resistive wall

C.G. Gimblett1986年被引用 166Nuclear FusionIF 3出版社

The paper extends and augments earlier research concerning the effect that a finitely conducting wall has on the linear stability of various plasma models. If a plasma is stable to a particular mode when surrounded by a perfect wall but unstable to it when the wall is removed, then theory indicates that surrounding the plasma with an imperfect wall can lead to instability of that mode on the long time constant of the wall. Analysis of this effect requires that the various modes possible be classified as to whether the plasma is regarded as ideal or resistive, and whether the pitch of the perturbation resonates with that of the equilibrium. The effect of both bulk plasma rotation and mode rotation (plasma diamagnetism) on these various modes is discussed.

日本語訳

本論文は、有限導電壁が様々なプラズマモデルの線形安定性に及ぼす影響に関する先行研究を拡張し、補強するものである。プラズマが完全導体壁に囲まれている場合には特定のモードに対して安定であるが、壁を取り除いた場合にはそのモードに対して不安定となるならば、理論は、不完全な壁でプラズマを囲むことが、壁の長時間時定数においてそのモードの不安定性を引き起こし得ることを示している。この効果の解析には、プラズマが理想的であるか抵抗性であるか、また摂動のピッチが平衡のピッチと共鳴するかどうかによって、可能な様々なモードを分類することが必要である。バルクプラズマ回転とモード回転(プラズマ反磁性)の両方がこれらの様々なモードに及ぼす効果について論じる。

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