Tearing stability in toroidal plasmas with shaped cross section

被引：10
|
作者：
Ham, C. J. [1 ]
Liu, Y. Q. [1 ]
Connor, J. W. [1 ]
Cowley, S. C. [1 ]
Hastie, R. J. [1 ]
Hender, T. C. [1 ]
Martin, T. J. [1 ]
机构：
[1] EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
来源：
PLASMA PHYSICS AND CONTROLLED FUSION | 2012年 / 54卷 / 10期
关键词：
RESISTIVE WALL MODES; STABILIZATION; INSTABILITIES; TOKAMAKS; FEEDBACK;
D O I：
10.1088/0741-3335/54/10/105014
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：
Two methods for calculating tearing mode stability are described in this paper. A fast method using the recently improved T7 code (Ham et al 2012 Plasma Phys. Control. Fusion 54 025009) and a new method based on the MARS-F MHD stability code (Liu et al 2000 Phys. Plasmas 7 3681) which constructs the tearing mode solution from calculated basis functions in the full geometry of the problem. The effects of plasma toroidicity and cross-sectional shaping on tearing mode stability are investigated using both of the methods; the resultant stabilizing effects are in reasonable agreement over the range of parameters investigated. The parameter-space explored includes JET-like and ITER-like plasma shaping. While T7 can be used for rapid calculations and parameter scans, the MARS-F construction technique produces the more accurate value of the tearing mode stability index.
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收藏
页数：7
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