Plasma instability of a vacuum arc centrifuge

被引：0
|
作者：
Hole, MJ [1 ]
Dallaqua, RS
Simpson, SW
Del Bosco, E
机构：
[1] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia
[2] Inst Nacl Pesquisas Espaciais, MCT, LAP, BR-12201970 Sao Jose Dos Campos, Brazil
来源：
PHYSICAL REVIEW E | 2002年 / 65卷 / 04期
关键词：
D O I：
暂无
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Ever since conception of the vacuum arc centrifuge in 1980, periodic fluctuations in the ion saturation current and floating potential have been observed in Langmuir probe measurements in the rotation region of a vacuum arc centrifuge. In this work we develop a linearized theoretical model to describe a range of instabilities in the vacuum arc centrifuge plasma column, and then test the validity of the description through comparison with experiment. We conclude that the observed instability is a "universal" instability, driven by the density gradient, in a plasma with finite conductivity.
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页数：15
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