Ion velocity and plasma potential measurements of a cylindrical cusped field thruster

被引：41

作者：

MacDonald, N. A. ^{[1
]}

Young, C. V. ^{[1
]}

Cappelli, M. A. ^{[1
]}

Hargus, W. A., Jr. ^{[2
]}

机构：

[1] Stanford Univ, Stanford Plasma Phys Lab, Stanford, CA 94305 USA

[2] USAF, Spacecraft Prop Branch, Res Lab, Edwards Afb, CA 93524 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 09期

关键词：

LOW-POWER; HALL;

D O I：

10.1063/1.4707953

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of the most probable time-averaged axial ion velocities and plasma potential within the acceleration channel and in the plume of a straight-channeled cylindrical cusped field thruster operating on xenon are presented. Ion velocities for the thruster are derived from laser-induced fluorescence measurements of the 5d[4](7/2) - 6p[3](5/2) xenon ion excited state transition centered at lambda = 834: 72 nm. Plasma potential measurements are made using a floating emissive probe with a thoriated-tungsten filament. The thruster is operated in a power matched condition with 300V applied anode potential for comparison to previous krypton plasma potential measurements, and a low power condition with 150V applied anode potential. Correlations are seen between the plasma potential drop outside of the thruster and kinetic energy contours of the accelerating ions. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4707953]

引用

页数：7

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