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Localized resistive modes in the circular tokamak

D Correa-Restrepo1985年Plasma Physics and Controlled FusionIF 2.2出版社

Localized resistive modes (resistive interchange and resistive ballooning modes) are investigated for self-consistent Tokamak equilibria which have circular cross-sections near the magnetic axis. The second region of stability (which is stable with respect to ideal ballooning modes at high poloidal beta beta p) proves to be unstable when resistive effects are taken into account as well. In the low beta p stability region, the stability boundaries are shifted toward lower beta p values. The magnitude of the shift depends on the degree of localization of the perturbation around the field line, highly localized perturbations being the most unstable ones.

日本語訳

局在化した抵抗性モード(抵抗性交換モードおよび抵抗性バルーニングモード)を、磁気軸近傍で円形断面を有する自己無撞着なトカマク平衡に対して調査する。理想バルーニングモードに関して高ポロイダルベータ(ベータ)値で安定な第二安定領域は、抵抗性効果を考慮すると不安定になることが示される。低ベータ値の安定領域では、安定境界はより低いベータ値側へシフトする。このシフトの大きさは、摂動の磁力線に沿った局在化の程度に依存し、最も強く局在化した摂動が最も不安定となる。

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