THE INFLUENCE OF ELECTRON/ION COLLISIONS ON A LOW-FREQUENCY PLASMA INSTABILITY

被引：10
|
作者：
SCHRITTWIESER, RW
机构：
[1] Institute for Ion Physics, University of Innsbruck, A-6020 Innsbruck
来源：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1993年 / 129卷
关键词：
ELECTRON/ION COLLISIONS; PLASMA; POTENTIAL RELAXATION INSTABILITY; THERMIONIC CONVERTER; Q-MACHINE; SURFACE IONIZATION;
D O I：
10.1016/0168-1176(93)87043-R
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
When an electron drift is produced along the magnetic held lines of a magnetized collisionless plasma, a number of low-frequency instabilities can be excited. One of these is the so-called potential relaxation instability (PRI), especially appearing in plasma diodes, thermionic converters and Q-machines. Tn this contribution, first a short review about the latest results on the PRI is given and then an experimental investigation is presented in which the PRI was seen to be quenched by electron/ion collisions, i.e. with increasing plasma density, the amplitude and coherence of the PRI dropped while the threshold voltage increased.
引用
收藏
页码：205 / 213
页数：9
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