On the stability of a dc-driven oxygen discharge in cylindrical geometry

被引：5
作者：
Bruhn, B. [1 ]
Richter, A. [1 ]
May, B. [1 ]
机构：
[1] Inst Phys, D-17489 Greifswald, Germany
来源：
PHYSICS OF PLASMAS | 2008年 / 15卷 / 05期
关键词：
D O I：
10.1063/1.2913269
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：
Starting from the hydrodynamic equations describing the positive column of glow discharges in oxygen, the stability of the homogeneous state is investigated. The model contains electrons, positive and negative ions as well as the metastable molecule O-2(a(1)Delta(g)) as a detachment partner. It is shown that the transition from the H-mode to the T-mode of a dc-driven oxygen discharge is caused by an attachment-induced ionization instability. The stability boundaries are calculated for selected values of the plasma parameters. The comparison of experimental data and theoretical predictions shows satisfactory agreement. (c) 2008 American Institute of Physics.
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页数：11
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