QUENCHING AND AMPLIFICATION OF THE POTENTIAL RELAXATION INSTABILITY BY CONTROL OF THE RADIAL ELECTRIC-FIELD

被引：7

作者：

IIZUKA, S ^{[1
]}

SCHRITTWIESER, R ^{[1
]}

机构：

[1] UNIV INNSBRUCK,INST THEORET PHYS,A-6020 INNSBRUCK,AUSTRIA

来源：

PHYSICS LETTERS A | 1990年 / 149卷 / 7-8期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/0375-9601(90)90899-Y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of a radial electric field on the potential relaxation instability (PRI), excited by a positively biased electrode in a single-ended Q-machine, is investigated experimentally. When the radial electric field Er in the boundary region between the bulk of the plasma and the thin plasma outside is directed inward, the PRI is suppressed, and a maximum stable axial current flows. However, an outward pointing Er leads to an amplification of the PRI due to the enhancement of the radial ion loss, giving rise to a strong current chopping. © 1990.

引用

页码：393 / 397

页数：5

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