Density distribution of high energy electrons in pulsed corona discharge of NO+N2 mixture.
Density distribution of high energy electrons in pulsed corona discharge of NO+N2 mixture.
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DOI：
10.1016/s1386-1425(03)00157-4
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发表时间：
2003-12
期刊：
影响因子：
--
通讯作者：
Wenchun Wang;Feng Liu;Jialiang Zhang;Younian Wang
中科院分区：
文献类型：
--
作者：
Wenchun Wang;Feng Liu;Jialiang Zhang;Younian Wang
利用线柱反应器中高压脉冲正电晕放电的发射光谱研究了放电间隙内高能电子密度的分布。成功地记录了在电晕放电的强电磁脉冲干扰下NO的A2Σ+→X2Π跃迁的相对总发射强度空间分布曲线。光谱学研究表明，放电中的高能电子密度在径向分布上呈非线性下降。在不同的放电电压下，NO的绝对发射强度不同，但径向分布曲线相似。如果在放电反应器中引入氧气流，则NO的发射强度大大降低，因此高能电子密度也相应降低。
Emission spectroscopy of the high-voltage pulsed positive corona discharge in a line-cylinder reactor is used to investigate the high-energy electron density distribution in the discharge gap. The relative overall emission intensity spatial distribution profile of the A2Σ+→X2Π transition of NO is successfully recorded against a severe electromagnetic pulse interference coming from the corona discharge at one atmosphere. The spectroscopic investigation shows that the high-energy electron density in the discharge has a nonlinearly decline in the radial distribution. When varying the discharge voltage, the absolute emission intensity of NO is different but the radial distribution profile is similar. If an oxygen flow was introduced into the discharge reactor, the emission intensity of NO decreases tremendously and, therefore, the high-energy electron density decreases reasonably.