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.

引用

页数：7

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