Self-organization in dc glow microdischarges in krypton: modelling and experiments

被引：23
|
作者：
Zhu, W. [1 ]
Niraula, P. [1 ]
Almeida, P. G. C. [2 ]
Benilov, M. S. [2 ]
Santos, D. F. N. [2 ]
机构：
[1] St Peters Univ, Dept Appl Sci, Jersey City, NJ 07306 USA
[2] Univ Madeira, CCCEE, Largo Do Municipio, Funchal, Portugal
来源：
PLASMA SOURCES SCIENCE & TECHNOLOGY | 2014年 / 23卷 / 05期
关键词：
glow discharges; self-organization; multiple solutions; bifurcations; BOUNDARY-LAYER DISCHARGES; EXCIMER EMISSION; CATHODE; XENON;
D O I：
10.1088/0963-0252/23/5/054012
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：
Self-organized patterns of cathodic spots have been observed in microdischarges operated in xenon, but not in other gases. However, modelling has indicated that it is, in principle, possible to observe the patterns of spots in discharges operated in other gases provided that experimental conditions, in particular pressure, are right. In this work, self-organized patterns of cathodic spots are for the first time observed in dc glow microdischarges operated in a gas other than xenon: krypton. The experiments have been guided by the modelling. According to both the experiment and the modelling, patterns in krypton are similar to those found earlier in xenon, however occur at higher pressures.
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页数：6
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