Expansion of the Cathode Spot and Generation of Shock Waves in the Plasma of a Volume Discharge in Atmospheric-Pressure Helium

被引：6

作者：

Omarov, O. A. ^{[1
]}

Kurbanismailov, V. S. ^{[1
]}

Arslanbekov, M. A. ^{[1
]}

Gadzhiev, M. Kh. ^{[1
]}

Ragimkhanov, G. B. ^{[1
]}

Al-Shatravi, Ali J. G. ^{[1
]}

机构：

[1] Dagestan State Univ, Makhachkala 367000, Republic Of Dag, Russia

来源：

PLASMA PHYSICS REPORTS | 2012年 / 38卷 / 01期

关键词：

CONTRACTION;

D O I：

10.1134/S1063780X11120087

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：

The expansion of the cathode spot and the generation of shock waves during the formation and development of a pulsed volume discharge in atmospheric-pressure helium were studied by analyzing the emission spectra of the cathode plasma and the spatiotemporal behavior of the plasma glow. The transition of a diffuse volume discharge in a centimeter-long gap into a high-current diffuse mode when the gas pressure increased from 1 to 5 atm and the applied voltage rose from the statistical breakdown voltage to a 100% over-voltage was investigated. Analytical expressions for the radius of the cathode spot and its expansion velocity obtained in the framework of a spherically symmetric model agree satisfactorily with the experimental data.

引用

页码：22 / 28

页数：7

共 50 条

[1] Expansion of the cathode spot and generation of shock waves in the plasma of a volume discharge in atmospheric-pressure helium
O. A. Omarov
V. S. Kurbanismailov
M. A. Arslanbekov
M. Kh. Gadzhiev
G. B. Ragimkhanov
Ali J. G. Al-Shatravi
[J]. Plasma Physics Reports, 2012, 38 : 22 - 28
[2] THE BEHAVIOR OF VOLUME DISCHARGE CONTRACTION IN HELIUM AT ATMOSPHERIC-PRESSURE
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