Kinetic Theory of Global n=1 Instabilities in Toroidal Plasmas

Kimitaka Itoh, Sanae Inoue Itoh, Takashi Tlda, Shinji Tokloa

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

The kinetic theory of the global n=1 instabilities of finite-pressure tokamak plasmas with circular cross-section is investigated in collisionless limit (m, n: poloidal and toroidal mode numbers). Wave-particle interactions and finite gyroradius effect are included. The radial-poloidal eigenmode equations are directly solved numerically. The m=1 internal/tearing mode, n= 1 ballooning mode and m= 2 tearing mode are identified with a fixed boundary condition. The m=1 internal mode turns out to be the collisionless tearing mode in low pressure regimes. The pressure driven ballooning mode is connected with the electrostatic-like ballooning mode. The toroidal coupling further stabilizes the m = 2 tearing mode, which is destabilized by the parallel current and can be stabilized by coupling with drift branch. Analytical studies are made by using the energy integral.

本文言語英語
ページ(範囲)1759-1774
ページ数16
ジャーナルjournal of the physical society of japan
53
5
DOI
出版ステータス出版済み - 1 1 1984

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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