Diagnosis of atmospheric pressure helium surface micro-discharge by two-dimensional temporal and spatial resolved emission spectroscopy
Diagnosis of atmospheric pressure helium surface micro-discharge by two-dimensional temporal and spatial resolved emission spectroscopy
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二维时空分辨发射光谱诊断常压氦表面微放电
DOI：
10.1063/1.5023774
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发表时间：
2018-06
影响因子：
2.2
通讯作者：
Ding Hongbin
中科院分区：
文献类型：
--
作者：
Wang Zhiwei;Feng Chunlei;Gao Liang;Ding Hongbin
采用二维空间分辨率研究了大气压氦气表面微放电（SMD）光谱发射的时间特性。OH（309 nm）、N2+（391.4 nm）、He（706.5 nm）和O（777.4 nm）的时间分辨发射光谱表现不同。结果表明，直接电子碰撞激发的等离子体发射的产生占主导地位的中间部分的边缘电极的放电事件起源在初始阶段。而扇形扩散主要是由于后期的潘宁电离和电荷转移反应。此外，SMD发射模式的动态演化在负半周具有子弹状结构，而在正半周看起来像辉光。这意味着施加电压的极性在SMD发射模式的动力学中起着重要的作用。
The time dependence of the spectral emission of atmospheric pressure surface micro-discharge (SMD) in helium has been investigated with a two-dimensional spatial resolution. The time-resolved emission spectra from OH (309 nm), N2+ (391.4 nm), He (706.5 nm), and O (777.4 nm) behave differently. The results indicate that direct electron impact excitation dominates the generation of the plasma emission in the middle part of the rim electrode where the discharge event originates during the initial period. However, the fan-shaped diffusion of the discharge patterns head is principally due to Penning ionization and charge transfer reaction in later phases. Furthermore, the dynamic evolution of SMD emission pattern has a bullet-like structure in the negative half cycle while it looks like a glow in the positive half cycle. It implies that the polarity of applied voltage plays an important role in the dynamics of the SMD emission patterns.
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影响因子：
2.5
作者：
G. Schaefer;H. Kirkici
通讯作者：
G. Schaefer;H. Kirkici
影响因子：
3.5
作者：
P. Bryant;P. Wettstein;S. Al‐Bataineh;R. Short;J. Bradley;S. Low;L. Parkinson;E. Szili
通讯作者：
P. Bryant;P. Wettstein;S. Al‐Bataineh;R. Short;J. Bradley;S. Low;L. Parkinson;E. Szili
影响因子：
4.4
作者：
J. Pouvesle;A. Bouchoule;J. Stevefelt
通讯作者：
J. Pouvesle;A. Bouchoule;J. Stevefelt
影响因子：
3.4
作者：
Golubovskii, YB;Maiorov, VA;Behnke, JF
通讯作者：
Behnke, JF
影响因子：
4
作者：
G. Naidis
通讯作者：
G. Naidis