Open AccessSTABILITY OF COLLISIONLESS DRIFT WAVES IN A HOT ELECTRON PLASMA
Author(s) -
Huang Chao-Song,
Wu Guang-Xue,
Xiao Shi-Li
Publication year - 1989
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.38.629
Subject(s) - physics , gyroradius , electron , plasma , atomic physics , vlasov equation , wavelength , magnetohydrodynamics , electron temperature , ion , electromagnetic electron wave , two stream instability , perturbation (astronomy) , waves in plasmas , computational physics , optics , quantum mechanics
The low frequency interchange mode and d ift wave in a hot electron plasma are analyzed by using the Vlasov equation, and the effect of hot electrons is discussed. The stabilization of the drift wave occurs when α30%, and the stabilization of the interchange mode occurs when α10%, where a is the fraction of hot electrons. The influences of ion Larmor radius, density gradient and temperature of plasma, wavelength of perturbation, and magnetic curvature, on the stability are discussed. Comparing with the results of the strongly collisional drift wave derived from the MHD approximation, the collisionless drift wave can be stabilized by the ho electrons more easily.