Pressure and electron energy measurements in a channel spark discharge

Plasma Devices and Operations Pub Date : 2007-04-11 DOI:10.1080/10519990701195054

Y. Krasik, S. Gleizer, P. Nozar, C. Taliani

引用次数: 7

Abstract

We present the results for a channel spark discharge which show a substantial difference between the pressure in the experimental chamber and the pressure in the hollow cathode (HC). For the pressure range (1−8)×10−2 Torr measured in the experimental chamber, the pressure in the hollow cathode is changed in the range (8−16)×10−2 Torr. An analysis of the pressure data obtained by pumping of the experimental chamber via the HC showed that there are three modes of the system pumping, namely molecular, transient and viscous. Finally, it was shown that applying a discharge voltage with amplitude up to 50 keV allows electron beams to be generated with an efficiency up to 10%, a maximum electron energy spectrum at about 25 keV and a current amplitude of several hundred amperes.

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通道火花放电中的压力和电子能量测量

我们给出了通道火花放电的结果，显示了实验室内压力和空心阴极(HC)压力之间的实质性差异。对于实验室内测得的压力范围(1 ~ 8)×10−2 Torr，空心阴极内的压力变化范围为(8 ~ 16)×10−2 Torr。通过对HC抽运实验室压力数据的分析，发现系统抽运存在分子、瞬态和粘性三种模式。最后，结果表明，施加幅度高达50 keV的放电电压，电子束的产生效率可达10%，电子能谱最大值约为25 keV，电流幅值为几百安培。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Plasma Devices and Operations 物理-核科学技术

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