Cross-field plasma lens for focusing of the Hall thruster plume

被引：14

作者：

Griswold, Martin E. ^{[1
]}

Raitses, Yevgeny ^{[1
]}

Fisch, Nathaniel J. ^{[1
]}

机构：

[1] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

PLASMA SOURCES SCIENCE & TECHNOLOGY | 2014年 / 23卷 / 04期

关键词：

Hall thruster; plasma lens; anomalous transport; ION-BEAMS;

D O I：

10.1088/0963-0252/23/4/044005

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：

Hall thrusters produce neutralized ion beams with high current density because the acceleration takes place in quasi-neutral plasma and is not subject to space charge limitation. We tested an external plasma lens (PL) in front of the thruster as a means to focus the thruster plume. In the PL, the plasma is nearly collisionless, with non-magnetized flowing ions and magnetized electrons. Surprisingly, we observed anomalous electron cross-field transport, leading to large currents to the PL electrode and enhanced power loss.

引用

页数：6

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