Sheath and boundary conditions for plasma simulations of a Hall thruster discharge with magnetic lenses

被引：33

作者：

Keidar, Michael ^{[1
]}

Beilis, Isak I. ^{[2
]}

机构：

[1] George Washington Univ, Dept Mech & Aerosp Engn, Washington, DC 20052 USA

[2] Tel Aviv Univ, Dept Interdisciplinary Studies, IL-69978 Tel Aviv, Israel

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 19期

关键词：

magnetic lenses; plasma applications; plasma boundary layers; plasma confinement; plasma magnetohydrodynamics; plasma sheaths; plasma simulation; plasma-wall interactions; WALL TRANSITION; ELECTRODE; FIELD; DRIFT;

D O I：

10.1063/1.3132083

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of magnetic lens configuration on sheath in a Hall thruster discharge channels is considered. A model of the plasma-wall transition is developed in the case of large magnetic field incidence angle with respect to the wall. Peculiarity of such case consists in that the potential drop across the magnetic field is set externally. In this case, standard boundary conditions at the sheath edge for plasma simulations fail and a new formulation for those boundary conditions is proposed. The results obtained demonstrate importance of the effect of the magnetic field incidence angle on the sheath boundary conditions for plasma simulations as well as on the energy balance in the Hall thruster discharge.

引用

页数：3

共 16 条

[1] Sheath and presheath structure in the plasma-wall transition layer in an oblique magnetic field [J].

Beilis, II ;

Keidar, M .

PHYSICS OF PLASMAS, 1998, 5 (05) :1545-1553

[2] Secondary electron emission from dielectric materials of a Hall thruster with segmented electrodes [J].

Dunaevsky, A ;

Raitses, Y ;

Fisch, NJ .

PHYSICS OF PLASMAS, 2003, 10 (06) :2574-2577

[3]

FIFE JM, 1998, THESIS MIT, P3514

[4] Plasma lens and plume divergence in the Hall thruster [J].

Fruchtman, A. ;

Cohen-Zur, A. .

APPLIED PHYSICS LETTERS, 2006, 89 (11)

[5] Model study of the influence of the magnetic field configuration on the performance and lifetime of a Hall thruster [J].

Garrigues, L ;

Hagelaar, GJM ;

Bareilles, J ;

Boniface, C ;

Boeuf, JP .

PHYSICS OF PLASMAS, 2003, 10 (12) :4886-4892

[6]

HOFER R, 2002, P 38 JOINT PROP C EX, P3514

[7] On the magnetic mirror effect in Hall thrusters [J].

Keidar, M ;

Boyd, ID .

APPLIED PHYSICS LETTERS, 2005, 87 (12) :1-3

[8] Transition from plasma to space-charge sheath near the electrode in electrical discharges [J].

Keidar, M ;

Beilis, II .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 2005, 33 (05) :1481-1486

[9] Plasma flow and plasma-wall transition in Hall thruster channel [J].

Keidar, M ;

Boyd, ID ;

Beilis, II .

PHYSICS OF PLASMAS, 2001, 8 (12) :5315-5322

[10] Electron transport phenomena in plasma devices with E x B drift [J].

Keidar, Michael ;

Beilis, Isak I. .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 2006, 34 (03) :804-814

← 1 2 →