Magnetic Components of Geodesic Acoustic Modes in Plasmas with Anisotropic Ion Distribution

被引：0
|
作者：
张淼 [1 ]
周登 [1 ,2 ]
机构：
[1] Institute of Plasma Physics, Chinese Academy of Sciences
[2] Center for Magnetic Fusion Theory, Chinese Academy of Sciences
来源：
Plasma Science and Technology | 2010年 / 01期
基金：
中国国家自然科学基金;
关键词：
geodesic acoustic mode; harmonic expansion;
D O I：
暂无
中图分类号：
O53 [等离子体物理学];
学科分类号：
070204 ;
摘要：
The existence of magnetic components in geodesic acoustic modes is investigatedfor a weakly anisotropic tokamak plasma with dual-temperature Maxwellian distributions forions. An m=1 perpendicular magnetic perturbation is discovered to be proportional to therelative difference between the two temperatures in addition to an m = 2 perpendicular magneticperturbation which always exists due to the m = 2 parallel return current, with rn the poloidalmode number. The dispersion relation and the mode frequency are also modified by the anisotropicdistribution.
引用
收藏
页码：6 / 10
页数：5
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