Direct current glow discharges in atmospheric air

被引：59

作者：

Mohamed, AAH

Block, R

Schoenbach, KH

机构：

[1] Physical Electronics Research Institute, Old Dominion University, Norfolk

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2002年 / 30卷 / 01期

关键词：

air; atmospheric pressure; direct current; glow discharge;

D O I：

10.1109/TPS.2002.1003984

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：

A microhollow cathode discharge was used as plasma cathode to sustain a stable direct current glow discharge in atmospheric pressure air. The length of the glow discharge column was varied from 1 mm to 2 cm, with the sustaining voltage increasing linearly with length. For glow discharges with currents on the order of 10 mA, the electron density in the air plasmas exceeded 10(11) cm(-3), with highest values of almost 10(13) cm(-3) close to the plasma cathode. When two 8.5-mA discharges were operated in parallel, at a distance of 0.4 cm, the discharge plasmas were found to merge for electrode gaps exceeding 0.5 cm, an effect that can be used to generate large volume, homogenous air plasmas.

引用

页码：182 / 183

页数：2