Observation of internal kink instability purely driven by suprathermal electrons in the HL-1M tokamak

被引：54

作者：

Ding, XT ^{[1
]}

Liu, Y

Guo, GC

Wang, EY

Wong, KL

Yan, LW

Dong, JQ

Cao, JY

Zhou, Y

Rao, J

Yuan, Y

Xia, H

Liu, Y

机构：

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

[2] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

NUCLEAR FUSION | 2002年 / 42卷 / 05期

关键词：

D O I：

10.1088/0029-5515/42/5/301

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：

Strong m = 1 MHD activities are observed in the HL-1M tokamak during off-axis electron cyclotron resonance heating (ECRH) when the cyclotron resonance location is placed just outside the q = 1 surface at the high-magnetic-field side of the magnetic surface. Addition of lower-hybrid waves to ECRH significantly enhances the MHD excitation, but lower-hybrid waves alone cannot excite or sustain the mode. This result is a clear demonstration of the suprathermal trapped electron effect on the instability because of the absence of energetic ions in the plasma.

引用

页码：491 / 495

页数：5

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