Preliminary Study of Ideal Operational MHD Beta Limit in HL-2A Tokamak Plasmas

被引：0
|
作者：
Shen Yong [1 ]
Dong Jiaqi [1 ,2 ]
He Hongda [1 ]
Turnbull, A. D. [3 ]
机构：
[1] SW Inst Phys, Chengdu 610041, Peoples R China
[2] Zhejiang Univ, Hangzhou 310027, Zhejiang, Peoples R China
[3] Gen Atom Co, San Diego, CA USA
来源：
PLASMA SCIENCE & TECHNOLOGY | 2009年 / 11卷 / 02期
基金：
中国国家自然科学基金;
关键词：
MHD instability; HL-2A tokamak; beta limit; BIG DEE; EQUILIBRIUM; INSTABILITY; PRESSURE;
D O I：
暂无
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：
Magnetohydrodynamic (MHD) n=1 kink mode with n the toroidal mode number is studied and the operational beta limit, constrained by the mode, is calculated for the equilibrium of HL-2A by using the GATO code. Approximately the same beta limit is obtained for configurations with a value of the axial safety factor q(0) both larger and less than 1. Without the stabilization of the conducting wall, the beta limit is found to be 0.821% corresponding to a normalized beta value of beta(c)(N)=2.56 for a typical HL-2A discharge with a plasma current I(p)=0.245 MA, and the scaling of beta(c)(N) similar to constant is confirmed.
引用
收藏
页码：131 / 136
页数：6
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