Production of Pulse Glow Discharge in Atmospheric Pressure Nitrogen Using Needle-Array Electrode
Production of Pulse Glow Discharge in Atmospheric Pressure Nitrogen Using Needle-Array Electrode
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DOI：
10.1143/jjap.45.8241
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发表时间：
2006-10
影响因子：
1.5
通讯作者：
K. Takaki;H. Kirihara;C. Noda;S. Mukaigawa;T. Fujiwara
中科院分区：
文献类型：
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作者：
K. Takaki;H. Kirihara;C. Noda;S. Mukaigawa;T. Fujiwara
在氮气中使用针阵列电极产生大气压辉光放电。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（SOS）二极管作为开路开关，以缩短上升时间。通过消除SOS二极管，在这种情况下，充电电压直接施加到电极上，辉光电流急剧降低。空间和时间平均的电子密度在一个积极的柱估计从计算的基础上氮群数据。密度估计为1.8×1011 cm-3，远大于没有SOS二极管时的9.7×109 cm-3。
An atmospheric pressure glow discharge was generated using a needle-array electrode in nitrogen. 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 glow-to-arc transition caused by inhomogeneous thermalization. Semiconductor opening switch (SOS) diodes were employed as an opening switch to shorten the rise time. The glow current was drastically decreased by eliminating the SOS diode, in which case the charging voltage was directly applied to the electrode. Spatial- and time-averaged electron densities in a positive column were estimated from calculations based on nitrogen swarm data. The density was estimated to be 1.8×1011 cm-3, which was much larger than 9.7×109 cm-3 in the case without the SOS diode.