Magnetic drift kinetic damping of the resistive wall mode in large aspect ratio tokamaks

被引：67
|
作者：
Liu, Yueqiang [1 ]
Chu, M. S. [2 ]
Gimblett, C. G. [1 ]
Hastie, R. J. [1 ]
机构：
[1] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
[2] Gen Atom Co, San Diego, CA 29186 USA
来源：
PHYSICS OF PLASMAS | 2008年 / 15卷 / 09期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1063/1.2978091
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：
An analytical, large aspect ratio, calculation of the drift-kinetic energy perturbation is carried out for the resistive wall mode, due to the mode resonance with the magnetic precession drifts of trapped thermal ions and electrons. Four asymptotic cases are identified and analyzed in detail. Generally, a partial stabilization of the mode is possible thanks to the kinetic correction to the perturbed plasma energy. A complete stabilization can occur only in a narrow space of the plasma equilibrium parameters. Kinetic destabilization of the mode is also possible due to a finite pressure correction to the precession drift frequency. (c) 2008 American Institute of Physics.
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页数：13
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