Helium corona-assisted air discharge

Helium corona-assisted air discharge
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氦电晕辅助空气放电

DOI:
10.1063/1.3651600
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发表时间:
2011-10
影响因子:
3.2
通讯作者:
Cao, Zexian
Cao, Zexian
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Jiang, Nan;Gao, Lei;Ji, Ailing;Cao, Zexian

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包括空气在内的电负性气体在低电压、不消耗惰性气体的条件下进行大气压放电,将极大地促进低温等离子体的应用。利用氦电晕起始电压低的优点,采用部分装在充氦玻璃泡中的针-板系统,成功地在低得多的电压下启动了空气放电,针-板距离为12 mm,1.0 kV就足够了。氦电晕的紫外辐射促进了空气的放电,并且放电电流在两个半周期中表现出相对较宽的Trichel脉冲等明显特征。这种设计允许安全和经济地实现电负性气体的大气放电,这将在表面改性、等离子体医学和气体处理等方面找到广泛的应用。
Operation of atmospheric discharge of electronegative gases including air at low voltages yet without consuming any inert gas will enormously promote the application of non-thermal plasmas. By taking advantage of the low onset voltage for helium corona, air discharge was successfully launched at much reduced voltages with a needle-plate system partly contained in a helium-filled glass bulb—for a needle-plate distance of 12 mm, 1.0 kV suffices. Ultraviolet emission from helium corona facilitates the discharging of air, and the discharge current manifests distinct features such as relatively broad Trichel pulses in both half periods. This design allows safe and economic implementation of atmospheric discharge of electronegative gases, which will find a broad palette of applications in surface modification, plasma medicine and gas treatment, etc.
DOI: 10.1007/978-3-642-61247-3
发表时间: 1991-10
期刊: --
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作者:
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