Electromagnetic effect on the toroidal ion temperature gradient mode
作者:
J. Y. Kim,
W. Horton,
J. Q. Dong,
期刊:
Physics of Fluids B: Plasma Physics
(AIP Available online 1993)
卷期:
Volume 5,
issue 11
页码: 4030-4039
ISSN:0899-8221
年代: 1993
DOI:10.1063/1.860623
出版商: AIP
数据来源: AIP
摘要:
A systematic study of the electromagnetic effects on the toroidal ion temperature gradient mode is presented using the local and nonlocal theories with the full kinetic terms. For the nonlocal study, a numerical code is developed to solve the electromagnetic gyrokinetic equation in the ballooning space. The electromagnetic coupling to the shear Alfve´n mode is shown to give a stabilization of the toroidal temperature gradient mode at almost the same plasma pressure as that at which the kinetically modified magnetohydrodynamic (MHD) ballooning mode becomes destabilized. The transitional &bgr; value is shown to be lower in the full kinetic description than in the fluid theory. Possible correlations of these stability results with experimental observations are discussed.
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