Propagation and ion dynamics of waves in amplitude modulated helicon plasmas

被引：0
|
作者：
Stark, A [1 ]
Grulke, O
Klinger, T
机构：
[1] EURATOM, Max Planck Inst Plasma Phys, Greifswald, Germany
[2] Ernst Moritz Arndt Univ Greifswald, Greifswald, Germany
来源：
PLASMA 2005 | 2006年 / 812卷
关键词：
three-wave-coupling; helicon waves; modulation; ion kinetics; laser induced fluorescence;
D O I：
暂无
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 helicon source is driven with amplitude modulated RF at modulation frequencies near the ion cyclotron frequency in the VINETA device. In response to the modulation propagating electromagnetic waves are found, whose dispersion differs significantly from linear wave dispersion theory. This indicates that the observed waves are generated by non-linear wave coupling of the helicon waves with a second strongly damped or evanescent wave. Laser induced fluorescence measurements reveal a local increase of the ion temperature at the minimum of the modulation drive.
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页码：141 / +
页数：2
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