| 光谱学与光谱分析 |
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| Study on the Emission Spectra of N2 Plasma Jet by AC Glow Discharge |
| ZHU Yi, SUN Dian-ping, YANG Xiao-hua, CHEN Yang-qin* |
| Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China |
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Abstract N2 plasma jet was generated from a nozzle using an AC discharge at about 15 kV. The emission spectra were obtained by using the concentration modulation spectroscopic technique. The dependence of spectral signal on the discharge current was discussed. It was found that the vibrational temperature decreased first and then increased downstream from the nozzle by measuring the emission spectra from different axial positions in the jet. A phenomenological model was presented to explain the vibrational temperature variation with different axial position z. The N+2/ N2 ratio varied along the axis and the property of discharge in the experimental system was studied.
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Received: 2006-06-06
Accepted: 2006-09-19
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Corresponding Authors:
CHEN Yang-qin
E-mail: yqchen@phy.ecnu.edu.cn
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| Cite this article: |
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ZHU Yi,SUN Dian-ping,YANG Xiao-hua, et al. Study on the Emission Spectra of N2 Plasma Jet by AC Glow Discharge[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(09): 1680-1684.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I09/1680 |
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