A simple toroidal shell model for the study of feedback stabilization of resistive wall modes in a tokamak plasma

被引：2
|
作者：
Jhang, Hogun [1 ]
机构：
[1] Natl Fus Res Inst, ITER Korea Domest Agcy, Taejon, South Korea
来源：
PHYSICS OF PLASMAS | 2008年 / 15卷 / 02期
关键词：
D O I：
10.1063/1.2834282
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：
A study is conducted on the feedback stabilization of resistive wall modes (RWMs) in a tokamak plasma using a toroidal shell model. An analytically tractable form of the RWM dispersion relation is derived in the presence of a set of discrete feedback coil currents. A parametric study is carried out to optimize the feedback system configuration. It is shown that the total toroidal angle of a resistive wall spanned by the feedback coils and the poloidal angular extent of a feedback coil are crucial parameters to determine the efficacy of the feedback system. (c) 2008 American Institute of Physics.
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页数：9
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