Jpn. J. Appl. Phys. 20 (1981) pp. L801-L803 |Next Article| |Table of Contents|
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Letter
Electrostatic Ballooning Mode in Toroidal Plasma
Kimitaka Itoh,
Takashi Tuda,
Shinji Tokuda and
Sanae-Inoue Itoh1
Division of Thermonuclear Fusion Research, Japan Atomic Energy Research Institute
1Institute for Fusion Theory, Hiroshima University
(Received August 20, 1981; accepted for publication October 12, 1981)
The electrostatic high-n ballooning mode equation is solved, preserving the radial structures of the electron and ion Z-functions. Two branches of ballooning instability are found. The Pearlstein-Berk mode remains stable in a torus with magnetic shear, while the ballooning mode is always unstable and is especially important for Te/Ti∼O(1). The instabilities are characterized by large growth rates and small real frequencies ω*∼γ>|ω|∼0.
URL:
http://jjap.jsap.jp/link?JJAP/20/L801/
DOI: 10.1143/JJAP.20.L801
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