Trapped particle destabilization of the internal kink mode
作者:
R. B. White,
L. Chen,
F. Romanelli,
R. Hay,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1985)
卷期:
Volume 28,
issue 1
页码: 278-286
ISSN:0031-9171
年代: 1985
DOI:10.1063/1.865198
出版商: AIP
数据来源: AIP
摘要:
The internal kink mode is destabilized by trapped high‐energy particles, leading to a new branch of the internal kink dispersion relation with a real frequency near the average trapped‐particle precession frequency and a growth rate of the same magnitude. This trapped particle branch of the dispersion relation is investigated numerically for a variety of particle distributions. Mode growth rate and frequency is found as a function of plasma &bgr;, density, and trapped‐particle energy and distribution. The high‐energy trapped particle sources considered are neutral beam injection, ion‐cyclotron heating, and fusion alpha particles. Relevance for various plasma heating schemes is discussed.
点击下载:
PDF
(873KB)
返 回