Effect of passive plates on vertical instability in the EAST tokamak

doi:10.1088/1674-1056/21/8/085201

Abstract The effect of passive plates on vertical displacement control in EAST tokamak is investigated by open loop experiments and numerical simulations based on a rigid displacement model. The experiments and simulations indicate that the vertical instability growth rate is reduced by a factor of about 2 in the presence of the passive plates, where the adjacent segments are not connected to each other. The simulations also show that the vertical instability growth rate is reduced by a factor of about 10 if all adjacent segments on each passive plate loop are connected to each other. The operational window is greatly enlarged with the passive plates.

Keywords: passive plate vertical instability rigid displacement model

Received: 15 December 2011
Revised: 04 January 2012
Accepted manuscript online:

PACS:	52.75.-d	(Plasma devices)
	52.35.Py	(Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))
	52.65.-y	(Plasma simulation)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10725523, 10721505, and 10835009).

Corresponding Authors: Liu Guang-Jun
E-mail: gjliu@ipp.ac.cn

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Liu Guang-Jun (刘广君), Wan Bao-Nian (万宝年), Qian Jin-Ping (钱金平), Sun You-Wen (孙有文), Xiao Bing-Jia (肖炳甲), Shen Biao (沈飚), Luo Zheng-Ping (罗正平), Ji Xiang (戟翔), Chen Shu-Liang (陈树亮 ) Effect of passive plates on vertical instability in the EAST tokamak 2012 Chin. Phys. B 21 085201

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[1]	The stability margin on EAST tokamak Qian Jin-Ping(钱金平), Wan Bao-Nian(万宝年), Shen Biao(沈彪), M.L. Walker, D.A. Humphreys, and Xiao Bing-Jia(肖炳甲). Chin. Phys. B, 2009, 18(6): 2432-2440.

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