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

页码：6 / 10

页数：5