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| 引用本文： | 孙殿平,朱轶,刘煜炎,陈扬骎. ������������������Ũ�ȵ��ƹ������[J]. 核聚变与等离子体物理, 2007, 27(2): 172-176 |
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| 作者姓名： | 孙殿平 朱轶 刘煜炎 陈扬骎 |
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| 作者单位： | (???????????????????????????????????????????200062) |
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| 基金项目： | 国家自然科学基金资助项目(10574045,10434060)，上海市科委基础重大课题(04DZ14009) |
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| 摘 要： | 采用浓度调制光谱技术研究了连续交流放电产生的氮等离子体喷束。当放电峰峰电压VPP大于9.6kV时,氮离子以脉冲形式产生,每个放电电压周期产生一次。此时监测到交流放电电流上有一反向电流尖峰,该电流尖峰是等离子体喷束中氮离子惯性运动形成的,其强度与浓度调制光谱的强度成正比。根据浓度调制光谱的1f/2f检测结果,提出了一个理论模型,解释了上述现象。
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| 关 键 词： | 交流辉光放电 氮分子 浓度调制光谱 放电电流尖峰 等离子体诊断 |
| 文章编号： | 0254-6086（2007）02-0172-05 |
| 修稿时间： | 2006-06-132006-10-29 |
Diagnostics of plasma jet in AC glow discharge by concentration modulation spectroscopy |
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| SUN Dian-ping,ZHU Yi,LIU Yu-yan,CHEN Yang-qin. Diagnostics of plasma jet in AC glow discharge by concentration modulation spectroscopy[J]. Nuclear Fusion and Plasma Physics, 2007, 27(2): 172-176 |
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| Authors: | SUN Dian-ping ZHU Yi LIU Yu-yan CHEN Yang-qin |
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| Affiliation: | (Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062) |
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| Abstract: | Nitrogen plasma jet in the AC discharge is studied by means of the concentration modulation spectroscopy.Nitrogen ions were generated in pulse mode when the discharge voltage was higher than 9.6 kV(peak-to-peak),and the ions pulse arose only in every negative cycle of the discharge,meanwhile an opposite peak appeared in the discharge current.This peak was formed by the inertia movement of ejecting nitrogen ion in jet.Additionally,the intensity of the ions was found to be proportional to the area of this opposite peak.This phenomenon was interpreted by a proposed theoretical model based on the detected 1f/2f data by concentration modulation spectroscopy. |
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| Keywords: | Glow discharge Nitrogen ion Concentration modulation Emission spectroscopy Discharge current peak Plasma diagnostics |
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