Suppression of resistive wall instabilities with distributed, independently controlled, active feedback coils

被引:61
作者
Cates, C [1 ]
Shilov, M [1 ]
Mauel, ME [1 ]
Navratil, GA [1 ]
Maurer, D [1 ]
Mukherjee, S [1 ]
Nadle, D [1 ]
Bialek, J [1 ]
Boozer, A [1 ]
机构
[1] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA
关键词
D O I
10.1063/1.874223
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
External kink instabilities are suppressed in a tokamak experiment by either (1) energizing a distributed array of independently controlled active feedback coils mounted outside a segmented resistive wall or (2) inserting a second segmented wall having much higher electrical conductivity. When the active feedback coils are off and the highly conducting wall is withdrawn, kink instabilities excited by plasma current gradients grow at a rate comparable to the magnetic diffusion rate of the resistive wall. (C) 2000 American Institute of Physics. [S1070-664X(00)02308-9].
引用
收藏
页码:3133 / 3136
页数:4
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