Experimental measurement of spatially resolved electron density in a filament of a pulsed positive streamer discharge in water
Experimental measurement of spatially resolved electron density in a filament of a pulsed positive streamer discharge in water
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DOI：
10.1063/1.4923375
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发表时间：
2015-06
影响因子：
4
通讯作者：
X. Wen;Z. Niu;B. Hou;C. Ren
中科院分区：
文献类型：
--
作者：
X. Wen;Z. Niu;B. Hou;C. Ren
采用高速分幅相机和单色仪相结合的方法，对水中正离子流注放电单灯丝中氢α线的空间分辨发射光谱进行了实验测量。研究了电导率为200 μS/cm的水中脉冲正离子流注放电单灯丝中空间分辨的电子密度。在实验过程中，每个放电脉冲的平均能量为90.6 ± 13.6mJ。结果表明，流注灯丝中的电子密度为10 17 -18/cm 3，并沿流注灯丝的轴向沿着呈减小趋势。
By combining a high-speed frame camera with a monochromator, the spatially resolved optical emission spectrum of hydrogen α line in a single filament of a pulsed positive streamer discharge in water has been experimentally measured. The spatially resolved electron densities in a single filament of a pulsed positive streamer discharge in water with a conductivity of 200 μS/cm were investigated. During the experiment, the average energy per pulse of discharge was 90.6 ± 13.6 mJ. The results show that the electron density in the streamer filament is 1017–18/cm3, and present a decreasing tendency along the axial direction of the streamer filament with increasing distance from the tip of the anode.