Stabilization of the resistive wall mode instability by trapped energetic particles

被引：21

作者：

Hao, G. Z. ^{[1
]}

Liu, Y. Q. ^{[2
]}

Wang, A. K. ^{[1
]}

Jiang, H. B. ^{[1
]}

Lu, Gaimin ^{[1
]}

He, H. D. ^{[1
]}

Qiu, X. M. ^{[1
]}

机构：

[1] SW Inst Phys, Chengdu 610041, Peoples R China

[2] Euratom CCFE Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

来源：

PHYSICS OF PLASMAS | 2011年 / 18卷 / 03期

基金：

英国工程与自然科学研究理事会; 中国国家自然科学基金;

关键词：

MAGNETOHYDRODYNAMIC STABILITY; KINK MODES; SHEAR; TOKAMAKS; FEEDBACK;

D O I：

10.1063/1.3569854

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：

A theoretical model for investigating the effect of the trapped energetic particles (EPs) on the resistive wall mode (RWM) instability is proposed. The results demonstrate that the trapped EPs have a dramatic stabilizing effect on the RWM because of resonant interaction between the mode and the magnetic precession drift motion of the trapped EPs. The results also show that the effect of the trapped EPs depends on the wall position. In addition, the stabilizing effect becomes stronger when the plasma rotation is taken into account. For sufficiently fast plasma rotation, the trapped EPs can lead to the complete stabilization of the RWM. Furthermore, the trapped EPs can induce a finite real frequency of the RWM in the absence of plasma rotation. (C) 2011 American Institute of Physics. [doi:10.1063/1.3569854]

引用

页数：7

共 25 条

[1] The role of kinetic effects, including plasma rotation and energetic particles, in resistive wall mode stabilitya) [J].