Investigation on the streamer propagation in atmospheric pressure helium plasma jet by the capacitive probe

被引：0

作者：

朱文超 ^{[1
,2
]}

黄邦斗 ^{[2
,3
]}

朱悉铭 ^{[3
]}

陈文聪 ^{[4
]}

蒲以康 ^{[2
]}

机构：

[1] State Key Laboratory of NBC Protection for Civilian,Institute of Chemical Defense AMS

[2] Department of Engineering Physics,Tsinghua University

[3] Key Laboratory of Power Electronics and Electric Drive,Institute of Electrical Engineering,Chinese Academy of Sciences

[4] Harbin Institute of Technology

来源：

Plasma Science and Technology | 2020年 / 05期

基金：

中国国家自然科学基金;

关键词：

streamer propagation; capacitive probe; guided ionization waves;

D O I：

暂无

中图分类号：

O53 [等离子体物理学];

学科分类号：

070204 ;

摘要：

In this letter, the streamer propagation in the atmospheric pressure helium plasma jet with afloating electrode nozzle driven by the kHz AC power supply is investigated. The current signal induced by the space charges and the mean propagation velocity of the guided ionization waves are measured by the capacitive probe method in the discharge region. The space charges in the guided ionization waves are found to increase with the applied voltage, which enhances both the electric field near the streamer head and the propagation velocity. The applicability of the streamer mechanism to the propagation of the guided ionization waves is validated by this electrical diagnostic method.

引用

页码：3 / 6

页数：4

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朱悉铭
陈文聪
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