KINETIC RESONANCE DAMPING RATE OF THE TOROIDAL ION TEMPERATURE-GRADIENT MODE

被引：23

作者：

KIM, JY ^{[1
]}

KISHIMOTO, Y ^{[1
]}

HORTON, W ^{[1
]}

TAJIMA, T ^{[1
]}

机构：

[1] NAKA FUS ESTAB, IBARAKI 31101, JAPAN

来源：

PHYSICS OF PLASMAS | 1994年 / 1卷 / 04期

关键词：

D O I：

10.1063/1.870751

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The linear damping rates of the toroidal ion temperature gradient (eta(i)) mode due to the toroidal resonance are calculated in the local kinetic limit. The well-known Landau contour method is generalized to treat the analytic continuation problem of the guiding center dispersion function in the toroidal resonance system where the resonance occurs from both the magnetic delB-curvature drift and the parallel ion transit drift. A detailed numerical analysis is presented for the dependence of the damping rate of the toroidal eta(i) mode on various parameters such as epsilon(n), k(y), and the trapped electron fraction. In addition, a consideration is presented on the decay problem of the ballistic response by phase mixing in the toroidal system, which is directly related to the kinetic damping problem of the normal modes by the toroidal resonance.

引用

页码：927 / 936

页数：10

共 17 条

[1] THEORY OF UBIQUITOUS MODE [J].