LOCKED MODES AND MAGNETIC-FIELD ERRORS IN THE MADISON SYMMETRICAL TORUS

被引:86
作者
ALMAGRI, AF
ASSADI, S
PRAGER, SC
SARFF, JS
KERST, DW
机构
[1] Department of Physics, University of Wisconsin, Madison
来源
PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1992年 / 4卷 / 12期
关键词
D O I
10.1063/1.860473
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
In the Madison Symmetric Torus (MST) reversed-field pinch [Fusion Technol. 19, 131 (1991)] magnetic oscillations become stationary (locked) in the lab frame as a result of a process involving interactions between the modes, sawteeth, and field errors. Several helical modes become phase locked to each other to form a rotating localized disturbance, the disturbance locks to an impulsive field error generated at a sawtooth crash, the error fields grow monotonically after locking (perhaps due to an unstable interaction between the modes and field error), and over tens of milliseconds of growth confinement degrades and the discharge eventually terminates. Field error control has been partially successful in eliminating locking.
引用
收藏
页码:4080 / 4085
页数:6
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