Spatial distribution of ozone density in pulsed corona discharges observed by two-dimensional laser absorption method
Spatial distribution of ozone density in pulsed corona discharges observed by two-dimensional laser absorption method
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DOI：
10.1088/0022-3727/37/5/013
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发表时间：
2004-03
期刊：
影响因子：
--
通讯作者：
R. Ono;T. Oda
中科院分区：
文献类型：
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作者：
R. Ono;T. Oda
用二维激光吸收法测量了40微米空间分辨率的脉冲电晕放电中臭氧密度的空间分布。放电发生在干燥空气中13 mm的点到面间隙中，脉冲宽度为100 ns。结果表明，脉冲放电后，臭氧密度增加了约100微米S。臭氧生成反应的速率系数O+O_2+M_→O_3+M为3·5×10~(-10)−_(34)cm_6·S·−_1。这表明，大部分臭氧是由次级流光产生的，而不是主要流光。在放电脉冲之后，臭氧从次级流光通道扩散到背景中。臭氧的扩散系数估计约为0.1cm2至0.2cm2 S−1。
The spatial distribution of ozone density is measured in pulsed corona discharges with a 40 µm spatial resolution using a two-dimensional laser absorption method. Discharge occurs in a 13 mm point-to-plane gap in dry air with a pulse duration of 100 ns. The result shows that the ozone density increases for about 100 µs after the discharge pulse. The rate coefficient of the ozone-producing reaction, O + O2 + M → O3 + M, is estimated to be 3.5 × 10−34 cm6 s−1. It is observed that ozone is mostly distributed in the secondary-streamer channel. This suggests that most of the ozone is produced by the secondary streamer, not the primary streamer. After the discharge pulse, ozone diffuses into the background from the secondary-streamer channel. The diffusion coefficient of ozone is estimated to be approximately 0.1 to 0.2 cm2 s−1.