Production of atmospheric-pressure glow discharge in nitrogen using needle-array electrode
Production of atmospheric-pressure glow discharge in nitrogen using needle-array electrode
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DOI：
10.1063/1.1905801
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发表时间：
2005-04
影响因子：
4
通讯作者：
K. Takaki;M. Hosokawa;T. Sasaki;S. Mukaigawa;T. Fujiwara
中科院分区：
文献类型：
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作者：
K. Takaki;M. Hosokawa;T. Sasaki;S. Mukaigawa;T. Fujiwara
在氮气中使用针阵列电极产生大气压辉光放电，并且在1 mA至60 A的范围内获得辉光放电的电压-电流特性。采用上升时间小于10 ns的脉冲高压在所有针尖同时产生流光放电。大量的流光放电阻止了由不均匀热化引起的辉光到电弧的转变。采用半导体开路开关二极管作为开路开关，以缩短上升时间。在放电电流达到0.3A之前，辉光电压几乎恒定，而当电流高于0.3A时，电压增加。根据氮群数据计算出60 A的辉光放电的正柱的电子密度和温度为1.4× 1012 cm-3和1.3eV，在氮气中使用针阵列电极产生大气压辉光放电，在1 mA ~ 60 A的范围内求出辉光放电的电压-电流特性。采用上升时间小于10 ns的脉冲高压在所有针尖同时产生流光放电。大量的流光放电阻止了由不均匀热化引起的辉光到电弧的转变。采用半导体开路开关二极管作为开路开关，以缩短上升时间。在放电电流达到0.3A之前，辉光电压几乎恒定，而当电流高于0.3A时，电压增加。根据氮群数据计算，60 A辉光放电的正柱中的电子密度和温度为1.4× 1012 cm-3和1.3 eV。
An atmospheric pressure glow discharge was generated using a needle-array electrode in nitrogen, and the voltage–current characteristics of the glow discharge were obtained in a range from 1 mA to 60 A. A pulsed high voltage with short rise time under 10 ns was employed to generate streamer discharges simultaneously at all needle tips. The large number of streamer discharges prevented the glow-to-arc transition caused by inhomogeneous thermalization. Semiconductor opening switch diodes were employed as an opening switch to shorten the rise time. The glow voltage was almost constant until the discharge current became 0.3 A, whereas the voltage increased with the current higher than 0.3 A. Electron density and temperature in a positive column of the glow discharge at 60 A were obtained to 1.4×1012cm−3 and 1.3 eV from calculation based on nitrogen swarm data.An atmospheric pressure glow discharge was generated using a needle-array electrode in nitrogen, and the voltage–current characteristics of the glow discharge were obtained in a range from 1 mA to 60 A. A pulsed high voltage with short rise time under 10 ns was employed to generate streamer discharges simultaneously at all needle tips. The large number of streamer discharges prevented the glow-to-arc transition caused by inhomogeneous thermalization. Semiconductor opening switch diodes were employed as an opening switch to shorten the rise time. The glow voltage was almost constant until the discharge current became 0.3 A, whereas the voltage increased with the current higher than 0.3 A. Electron density and temperature in a positive column of the glow discharge at 60 A were obtained to 1.4×1012cm−3 and 1.3 eV from calculation based on nitrogen swarm data.