Ion temperature gradient modes in toroidal helical systems

被引：17
|
作者：
Kuroda, T [1 ]
Sugama, H
Kanno, R
Okamoto, M
机构：
[1] Grad Univ Adv Studies, Toki 5095292, Japan
[2] Natl Inst Fus Sci, Toki 5095292, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2000年 / 69卷 / 08期
关键词：
ITG mode; helical system; LHD; gyrokinetic equation; ballooning representation;
D O I：
10.1143/JPSJ.69.2485
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Linear properties of ion temperature gradient (ITG) modes in toroidal helical systems are studied. The real frequencies, growth rates, and eigenfunctions are obtained for both stable and unstable cases by solving a kinetic integral equation with proper analytic continuation performed in the complex frequency I,lane. Based on a model magnetic configuration for toroidal helical systems like the Large Helical Device (LHD); dependences of the ITG mode properties on various plasma equilibrium parameters are investigated. Particularly, relative effects of VB-curvature drifts driven by the toroidicity and by the helical ripples are examined in order to compare a ITG modes in helical systems with those in tokamaks.
引用
收藏
页码：2485 / 2492
页数：8
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