An axially propagating two-stream instability in the Hall thruster plasma

被引：30

作者：

Tsikata, S. ^{[1
]}

Cavalier, J. ^{[2
]}

Heron, A. ^{[3
]}

Honore, C. ^{[4
]}

Lemoine, N. ^{[5
]}

Gresillon, D. ^{[4
]}

Coulette, D. ^{[5
]}

机构：

[1] CNRS, ICARE, UPR 3021, F-45071 Orleans, France

[2] Inst Plasma Phys ASCR, Prague, Czech Republic

[3] Ecole Polytech, CNRS, CPHT, UMR 7644, F-91128 Palaiseau, France

[4] Univ Paris 06, Univ Paris Sud, Ecole Polytech, LPP,CNRS,UMR 7648, F-91128 Palaiseau, France

[5] Univ Lorraine, CNRS, IJL, UMR 7198, F-54506 Vandoeuvre Les Nancy, France

来源：

PHYSICS OF PLASMAS | 2014年 / 21卷 / 07期

关键词：

LONGITUDINAL-WAVES; HYBRID; SHOCK; BEAM;

D O I：

10.1063/1.4890025

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：

Collective Thomson scattering experiments reveal the presence of high-frequency, axial electron density fluctuations at millimetric wavelengths in the Hall thruster plasma. The properties of these fluctuations are investigated experimentally and via linear kinetic theory. The relative drift of electrons and ions in the axial direction is found to be insufficient to cause excitation of the observed mode. Instead, the mode is determined to be a two-stream instability arising due to the velocity difference between singly and doubly charged ion populations in the plume. (C) 2014 AIP Publishing LLC.

引用

页数：12

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