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物理学报. 1987, 36(9): 1112-1121.
doi: 10.7498/aps.36.1112.
热电子等离子体的耗散漂移不稳定性
- 收稿日期: 1986-09-09
- 刊出日期: 2005-03-18
摘要: 在热电子等离子体中,存在密度梯度驱动的低频耗散性漂移波,本文导出了包括等离子体电阻性和粘滞性的漂移波的色散关系。热电子环能降低不稳定性的增长率,减少等离子体的反常输运损失。漂移波被热电子环完全稳定的条件是βh>4ξ/(1+2ξ)。实验中测量了漂移波的激发区域和振荡特性,观察了热电子环的稳定作用实。验结果与理论分析相符。
English Abstract
DISSIPATIVE DRIFT INSTABILITIES IN A HOT ELECTRON PLASMA
- Received Date:
09 September 1986
- Published Online:
18 March 2005
Abstract: Density-gradient-driven dissipative drift instabilities in a hot electron plasma are studied. Dispersion relation (including that of resistivity and viscosity) is derived. Hot electron ring can reduce growth rate of the instability and anomalous transport flux. Stability condition for the drift wave is βh>4ξ/(l + 2ξ). The fluctuation levels and the exciting region of drift mode are measured, and the stabilizing effects of hot electron ring observed. It is found that the experimental results are consistent with the theoretical predictions.
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