Plasma-wall sheath in a positive biased duct of the vacuum arc magnetic macroparticle filter

被引：15
|
作者：
Keidar, M [1 ]
Beilis, II
机构：
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[2] Tel Aviv Univ, Elect Discharge & Plasma Lab, IL-69978 Tel Aviv, Israel
来源：
APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 03期
关键词：
D O I：
10.1063/1.121817
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A model of the electrical sheath between plasma and a positively biased wall has been developed for the case of the magnetic field perfectly parallel to the wall. The magnetized sheath and relatively large positive wall potential with respect to the plasma are considered: so that only electron current is present in the sheath. We show that the sheath thickness increases linearly with duct current density. There is good quantitative agreement between the calculated and experimental current-voltage duct characteristics. (C) 1998 American Institute of Physics.
引用
收藏
页码：306 / 308
页数：3
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