Open AccessWARM ION EFFECTS ON KINETIC DRIFT CYCLOTRON LOSS CONE INSTABILITIES
Author(s) -
S. Guo,
Shen Jie-Wu,
Cai Shi-Dong
Publication year - 1988
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.37.1993
Subject(s) - dissipation , kinetic energy , plasma , ion , excitation , atomic physics , physics , resonance (particle physics) , cyclotron , classical mechanics , nuclear physics , quantum mechanics
The effects of adding warm plasmas on the kinetic DCLC mode in high βloss cone plasmas are investigated in detail. It is found that when the fluid DCLC mode is stabilized by a small amount of warm plasma, the kinetic excitation still remains due to two different mechanisms, namely, (1) magnetic drift resonance dissipation excites the negative energy wave; (2) a new type of positive energy wave can become unstable as the resonance condition is met. Comparing with fluid approximation theory, more warm plasmas are needed to suppress the kinetic DCLC instabilities.