Temporal evolution of nanosecond-pulse dielectric barrier discharges in open air

被引：62

作者：

Shao, Tao ^{[1
,2
]}

Zhang, Cheng ^{[1
,2
]}

Yu, Yang ^{[1
]}

Fang, Zhi ^{[3
]}

Yan, Ping ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Key Lab Power Elect & Elect Drive, Beijing 100190, Peoples R China

[3] Nanjing Univ Technol, Sch Automat & Elect Engn, Nanjing 210009, Jiangsu, Peoples R China

来源：

EPL | 2012年 / 97卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ATMOSPHERIC-PRESSURE; GENERATOR;

D O I：

10.1209/0295-5075/97/55005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Pulsed dielectric barrier discharge is a promising method for producing low-temperature plasma. In our letter, we describe atmospheric-pressure plasma driven by repetitive nanosecond pulses. The temporal emission behaviour of the discharge is investigated by fast images with 2 ns exposure time. Each image is taken during one single pulse and is not overlapped with other images taken in subsequent pulses. The discharge at a 1 mm air gap is diffuse and homogeneous, but some constricted filaments are observed in the diffuse discharge at a 4 mm air gap. Discharge starts from the center and spreads outward from the discharge electrode with mean radial velocity of about 10(4)-10(6) m/s. Copyright (C) EPLA, 2012

引用

页数：5

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