PROCESSES IN THE PREBREAKDOWN STAGE OF A LOW-PRESSURE DISCHARGE AND THE MECHANISM OF DISCHARGE INITIATION IN PSEUDOSPARK SWITCHES

被引：53
|
作者：
KOZYREV, AV
KOROLEV, YD
RABOTKIN, VG
SHEMYAKIN, IA
机构：
[1] High Current Electronics Institute, Siberian Division, Russian Academy of Sciences
来源：
JOURNAL OF APPLIED PHYSICS | 1993年 / 74卷 / 09期
关键词：
D O I：
10.1063/1.354239
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A time-dependent model for the rapid current rise during initiation of the discharge in a pseudospark switch is presented. The following assumptions are made: (1) the gas is ionized only by electrons that originate at the cathode; (2) the cathode emissivity is infinite; (3) the average ionization cross section is constant; (4) the ion charge density is independent of gap position. The results are in qualitative agreement with a previous experimental study of a nitrogen-filled switch operating between 6 and 20 kV for a range of gas pressures. The model provides a straightforward approach for estimating pseudospark breakdown times.
引用
收藏
页码：5366 / 5371
页数：6
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