Effect of dust-neutral collisions on the dust characteristics in a magnetized plasma sheath

被引：14

作者：

Masoudi, S. Farhad ^{[1
]}

Jafari, G. Reza ^{[2
]}

Shorakaee, Hossein Akbarian ^{[1
]}

机构：

[1] KN Toosi Univ Technol, Dept Phys, Tehran 4416, Iran

[2] Shahid Beheshti Univ, Dept Phys, Tehran 19839, Iran

来源：

VACUUM | 2009年 / 83卷 / 07期

关键词：

Plasma sheath; Dust particles; Collision force; Magnetic field; CHARACTERISTIC BEHAVIOR; ELECTROSTATIC SHEATH; BOUNDARY; GRAINS; FIELD;

D O I：

10.1016/j.vacuum.2009.02.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The characteristics of dust in a plasma sheath are investigated in the presence of an external magnetic field and taking into account the dust-neutral collision force. The continuity and momentum equations of ions and dust particles are solved numerically with various magnitudes of collision force by using the fluid model. The numerical results have revealed that the collision force reduces the dust gyro radios, changes (lie positions of the extrema of the dust density and the velocity in the depth direction. It is shown that the collision force reduces the dust kinetic energy which has no fluctuation even in a strong external magnetic field. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1031 / 1035

页数：5

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