Energetic particle effects as an explanation for the low frequencies of Alfven modes in the DIII-D tokamak

被引：30

作者：

Gorelenkov, NN ^{[1
]}

Heidbrink, WW

机构：

[1] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08544 USA

[2] Univ Calif Irvine, Irvine, CA USA

来源：

NUCLEAR FUSION | 2002年 / 42卷 / 02期

关键词：

D O I：

10.1088/0029-5515/42/2/305

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：

During beam injection in the DIII-D tokamak, modes with lower frequencies than expected for toroidicity induced Alfven eigenmodes (TAEs) are often observed. The experimental 'TAE' frequency is often approximate to0.8 of the nominal theoretical frequency of the TAE, f(TAE), while the typical frequency of beta induced Alfven eigenmodes (BAEs) is (0.2-0.4)f(TAE). An analysis is presented of an unstable discharge with a high n stability code, HINST, that includes the effect of energetic ions on mode frequency. The analysis shows that the experimental 'TAE' and 'BAE' could be resonant branches of the TAE and the kinetic ballooning mode, respectively.

引用

页码：150 / 156

页数：7

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