Interaction of supersonic molecular beam with low-temperature plasma

doi:10.1088/1674-1056/ab8457

中国物理B ›› 2020, Vol. 29 ›› Issue (6): 65208-065208.doi: 10.1088/1674-1056/ab8457

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Interaction of supersonic molecular beam with low-temperature plasma

Dong Liu(刘东), Guo-Feng Qu(曲国峰), Zhan-Hui Wang(王占辉), Hua-Jie Wang(王华杰), Hao Liu(刘灏), Yi-Zhou Wang(王艺舟), Zi-Xu Xu(徐子虚), Min Li(李敏), Chao-Wen Yang(杨朝文), Xing-Quan Liu(刘星泉), Wei-Ping Lin(林炜平), Min Yan(颜敏), Yu Huang(黄宇), Yu-Xuan Zhu(朱宇轩), Min Xu(许敏), Ji-Feng Han(韩纪锋)

1 Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Physics, Sichuan University, Chengdu 610064, China;
2 Southwestern Institute of Physics, Chengdu 610041, China

收稿日期:2020-01-24 修回日期:2020-03-05 出版日期:2020-06-05 发布日期:2020-06-05
通讯作者: Guo-Feng Qu, Ji-Feng Han E-mail:quguofeng@scu.edu.cn;hanjf@scu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11575121, 11275133, and 11575055) and the National Magnetic Confinement Fusion Program of China (Grant No. 2014GB125004).

Interaction of supersonic molecular beam with low-temperature plasma

Dong Liu(刘东)¹, Guo-Feng Qu(曲国峰)¹, Zhan-Hui Wang(王占辉)², Hua-Jie Wang(王华杰)², Hao Liu(刘灏)², Yi-Zhou Wang(王艺舟)¹, Zi-Xu Xu(徐子虚)¹, Min Li(李敏)¹, Chao-Wen Yang(杨朝文)¹, Xing-Quan Liu(刘星泉)¹, Wei-Ping Lin(林炜平)¹, Min Yan(颜敏)¹, Yu Huang(黄宇)¹, Yu-Xuan Zhu(朱宇轩)², Min Xu(许敏)², Ji-Feng Han(韩纪锋)¹

1 Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Physics, Sichuan University, Chengdu 610064, China;
2 Southwestern Institute of Physics, Chengdu 610041, China

Received:2020-01-24 Revised:2020-03-05 Online:2020-06-05 Published:2020-06-05
Contact: Guo-Feng Qu, Ji-Feng Han E-mail:quguofeng@scu.edu.cn;hanjf@scu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11575121, 11275133, and 11575055) and the National Magnetic Confinement Fusion Program of China (Grant No. 2014GB125004).

摘要/Abstract

摘要： The interaction between the supersonic molecular beam (SMB) and the low-temperature plasma is a critical issue for the diagnosis and fueling in the Tokamak device. In this work, the interaction process between the argon SMB and the argon plasma is studied by a high-speed camera based on the Linear Experimental Advanced Device (LEAD) in Southwestern Institute of Physics, China. It is found that the high-density SMB can extinct the plasma temporarily and change the distribution of the plasma density significantly, while the low-density SMB can hardly affect the distribution of plasma density. This can be used as an effective diagnostic technique to study the evolution of plasma density in the interaction between the SMB and plasma. Moreover, the related simulation based on this experiment is carried out to better understand the evolution of electron density and ion density in the interaction. The simulation results can be used to analyze and explain the experimental results well.

关键词: supersonic molecular beam, low-temperature plasma, emission, electron density diagnosis, high-speed camera

Abstract: The interaction between the supersonic molecular beam (SMB) and the low-temperature plasma is a critical issue for the diagnosis and fueling in the Tokamak device. In this work, the interaction process between the argon SMB and the argon plasma is studied by a high-speed camera based on the Linear Experimental Advanced Device (LEAD) in Southwestern Institute of Physics, China. It is found that the high-density SMB can extinct the plasma temporarily and change the distribution of the plasma density significantly, while the low-density SMB can hardly affect the distribution of plasma density. This can be used as an effective diagnostic technique to study the evolution of plasma density in the interaction between the SMB and plasma. Moreover, the related simulation based on this experiment is carried out to better understand the evolution of electron density and ion density in the interaction. The simulation results can be used to analyze and explain the experimental results well.

Key words: supersonic molecular beam, low-temperature plasma, emission, electron density diagnosis, high-speed camera

中图分类号: (Particle beam interactions in plasmas)

52.40.Mj

37.20.+j (Atomic and molecular beam sources and techniques) 52.25.-b (Plasma properties) 07.05.-t (Computers in experimental physics)

刘东, 曲国峰, 王占辉, 王华杰, 刘灏, 王艺舟, 徐子虚, 李敏, 杨朝文, 刘星泉, 林炜平, 颜敏, 黄宇, 朱宇轩, 许敏, 韩纪锋. Interaction of supersonic molecular beam with low-temperature plasma[J]. 中国物理B, 2020, 29(6): 65208-065208.

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Interaction of supersonic molecular beam with low-temperature plasma

Interaction of supersonic molecular beam with low-temperature plasma

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