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首页> 外文期刊>電気学会論文誌 A:基礎.材料.共通部門誌 >Observation of VUV Emission Spectra from DC Positive Corona Discharge
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Observation of VUV Emission Spectra from DC Positive Corona Discharge

机译：直流正电晕放电的VUV发射光谱观察

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It has been reported that the experimental investigations on the synchronization probabilities of the two surface streamers in atmospheric air by the authors. This synchronization phenomenon is interpreted by following processes. When an impulse voltage is applied to the parallel connected electrodes, a prior streamer occurs and the propagating streamer emits light. This light passes through the air and reaches the other electrode area. In this area, the initial electrons are supplied by the light and the initial electrons trigger the second streamer. The wavelength region of the light effective for the synchronization was confirmed experimentally. The region was shorter than 250 nm but the detailed wavelength cannot be specified by the experiments. Accordingly, as the first step to specify the effective wavelength, VUV emission spectra from DC positive corona discharges in air are observed together with nitrogen and oxygen gases. Several strong line spectra emitted from the discharges in air are recognized. They are identified that the emission lines of 174 nm, 149 nm and 118 nm are radiated from atomic nitrogen. On the other hand, the emission lines of 120 nm and 130 nm are originated from atomic oxygen. The preliminary experimental results show that these lights are absorbed immediately in air, so on-site photoabsorption measurements were carried out in air. The absorption coefficients of the air are estimated in this study. Even if the wavelength of the light is in the region of VUV, the light can pass through in the air. The facts suggest that the VUV light can pass through long distance in air and the light is effective for the propagation and the synchronization of streamer discharges through the photoelectron emission.
机译：据报道，作者对大气中两个表面拖缆的同步概率进行了实验研究。通过以下过程来解释这种同步现象。当将脉冲电压施加到并联连接的电极时，出现先有的拖缆并且正在传播的拖缆发光。该光穿过空气并到达另一个电极区域。在该区域中，初始电子由光提供，并且初始电子触发第二拖缆。通过实验确定了对同步有效的光的波长区域。该区域短于250 nm，但具体波长无法通过实验确定。因此，作为确定有效波长的第一步，可以观察到空气中直流正电晕放电产生的VUV发射光谱以及氮气和氧气。从空气中的放电发出的几个强谱线被识别。他们确定从原子氮辐射出174 nm，149 nm和118 nm的发射线。另一方面，120nm和130nm的发射线源自原子氧。初步的实验结果表明，这些光被空气立即吸收，因此在空气中进行了现场光吸收测量。在这项研究中估计了空气的吸收系数。即使光的波长在VUV范围内，光也可以在空气中通过。事实表明，VUV光可以在空气中通过很长的距离，并且该光对于通过光电子发射的流光放电的传播和同步是有效的。

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