Ion Collection by a Sphere in a Drifting Collisional Plasma

被引：3

作者：

Haakonsen, Christian Bernt ^{[1
]}

Hutchinson, Ian H. ^{[1
]}

机构：

[1] MIT, Plasma Sci & Fus Ctr, 77 Massachusetts Ave, Cambridge, MA 02139 USA

来源：

DUSTY/COMPLEX PLASMAS: BASIC AND INTERDISCIPLINARY RESEARCH: SIXTH INTERNATIONAL CONFERENCE ON THE PHYSICS OF DUSTY PLASMAS | 2011年 / 1397卷

关键词：

ion collection; neutral drift; charge-exchange collisions;

D O I：

10.1063/1.3659797

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：

SCEPTIC3D now includes charge-exchange collisions, and is used to examine ion collection by a floating conducting sphere (small compared to the electron debye length) in the presence of a background neutral drift. The enhancement of ion collection at moderate collisionalities seen for the stationary case is weakened as the drift speed increases from the ion thermal speed to the ion sound speed, above which no enhancement is seen.

引用

页数：2

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