Spatio-temporal characteristics of Trichel pulse at low pressure

被引：15

作者：

He, Shoujie ^{[1
]}

Jing, Ha ^{[2
]}

机构：

[1] Hebei Univ, Coll Phys Sci & Technol, Baoding, Peoples R China

[2] Hebei Agr Univ, Inst Sci, Baoding, Peoples R China

来源：

PHYSICS OF PLASMAS | 2014年 / 21卷 / 01期

基金：

美国国家科学基金会;

关键词：

NUMERICAL-SIMULATION; NEGATIVE CORONA; PLANE CORONA;

D O I：

10.1063/1.4863424

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：

Trichel pulses are investigated using a needle-to-plane electrode geometry at low pressure. The evolution of current and voltage, the spatio-temporal discharge images of Trichel pulse are measured. The rising time and duration time in a pulse are about 10 mu s and several tens of microseconds, respectively. One period of pulse can be divided into three stages: the stage preceding cathode breakdown, cathode glow formation, and discharge decaying process. Besides a cathode glow and a dark space, an anode glow is also observed. The emission spectra mainly originate from the C-3 Pi(u) -> B-3 Pi(g) transition for nitrogen. In addition, the capacitances in parallel connected with the discharge cell have important influence on the pulsing frequency. (C) 2014 AIP Publishing LLC.

引用

页数：5

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