applicationofmultipulseopticalimagingtomeasureevolutionoflaserproducedcounterstreamingflows

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	applicationofmultipulseopticalimagingtomeasureevolutionoflaserproducedcounterstreamingflows
	Yuan Dawei 2; Li Yutong 3; Zhu Baojun 3; Li Yanfei 3; Zhong Jiayong 1; Wei Huigang 2; Liu Chang 1; Yuan Xiaoxia 1; Zhang Zhe 3; Liang Guiyun 2
刊名	chinesephysicsb
	2017
卷号	26 期号:5
ISSN号	1674-1056
英文摘要	A counter-streaming flow system is a test-bed to investigate the astrophysical collisionless shock (CS) formation in the laboratory. Electrostatic/electromagnetic instabilities, competitively growing in the system and exciting the CS formation, are sensitive to the flows parameters. One of the most important parameters is the velocity, determining what kind of instability contributes to the shock formation. Here we successfully measure the evolution of the counter-streaming flows within one shot using a multi-pulses imaging diagnostic technique. With the technique, the average velocity of the high-density-part (n(e) >= 8-9 x 10(19) cm(-3)) of the flow is directly measured to be of similar to 10(6) cm/s between 7 ns and 17 ns. Meanwhile, the average velocity of the low-density-part (n(e) <= 2 x 10(19) cm(-3)) can be estimated as similar to 10(7) cm/s. The experimental results show that a collisionless shock is formed during the low-density-part of the flow interacting with each other.
资助项目	[National Basic Research Program of China] ; [National Natural Science Foundation of China] ; [China Postdoctoral Science Foundation]
语种	英语
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/51273]
专题	中国科学院国家天文台
作者单位	1.北京师范大学 2.中国科学院国家天文台 3.中国科学院物理研究所 4.National Laboratory on High Power Lasers and Physics 5.Research Center for Laser Fusion, China Academy of Engineering Physics 6.上海交通大学
推荐引用方式 GB/T 7714	Yuan Dawei,Li Yutong,Zhu Baojun,et al. applicationofmultipulseopticalimagingtomeasureevolutionoflaserproducedcounterstreamingflows[J]. chinesephysicsb,2017,26(5).
APA	Yuan Dawei.,Li Yutong.,Zhu Baojun.,Li Yanfei.,Zhong Jiayong.,...&Zhang Jie.(2017).applicationofmultipulseopticalimagingtomeasureevolutionoflaserproducedcounterstreamingflows.chinesephysicsb,26(5).
MLA	Yuan Dawei,et al."applicationofmultipulseopticalimagingtomeasureevolutionoflaserproducedcounterstreamingflows".chinesephysicsb 26.5(2017).