Observation of VUV Emission Spectra from DC Positive Corona Discharge
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概要
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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.
- 社団法人 電気学会の論文
- 2007-09-01
著者
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ITOH Hisayoshi
Japan Atomic Energy Research Institute
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Itoh Haruo
Chiba Institute Of Technology
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Suzuki S
Nikon Corp. Tokyo Jpn
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Suzuki Setsuo
Energy And Mechanical Research Laboratories Research And Development Center Toshiba Corporation
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Suzuki S
Chiba Institute Of Technology
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Suzuki Suguru
Department Of Materials Science And Engineering Nagoya Institute Of Technology
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Suzuki Susumu
Chiba Institute Of Technology
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Itoh H
Chiba Institute Of Technology
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KASHIWAGI Yasuhide
Kisarazu National College of Technology
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ITO Hironari
Chiba Institute of Technology
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NOGUCHI Kazuo
Chiba Institute of Technology
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TERANISHI Kenji
Graduate School of Advanced Technology and Science, The University of Tokushima
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Suzuki S
Research Center For Interface Quantum Electronics And Graduate School Of Electronics And Information
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Suzuki Setsu
School Of Science And Engineering Waseda University
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Teranishi Kenji
Graduate School Of Advanced Technology And Science The University Of Tokushima
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Itoh Haruo
Chiba Inst. Technol. Chiba Jpn
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