Alfven eigenmode excitation by ICRH beat waves

被引:33
作者
Fasoli, A [1 ]
Dobbing, JA [1 ]
Gormezano, C [1 ]
Jacquinot, J [1 ]
Lister, JB [1 ]
Sharapov, SE [1 ]
Sibley, A [1 ]
机构
[1] JET JOINT UNDERTAKING,ABINGDON OX14 3EA,OXON,ENGLAND
关键词
D O I
10.1088/0029-5515/36/2/I13
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
The resonant excitation of Alfven eigenmodes (AEs) by ICRH beat waves has been attempted experimentally on JET tokamak plasmas. Toroidicity induced AEs are excited when the difference frequency between two ICRH antennas is of the order of the central frequency of the relative Alfven continuum gap. The relatively large amplitudes for the TAE driven by ICRH beat waves suggest that this new non-linear excitation mechanism could allow investigations into the effects of AEs on particle orbits and should be taken into account in ICRH heated thermonuclear plasmas.
引用
收藏
页码:258 / 263
页数:6
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