Thomson scattering measurement of a shock in laser-produced counter-streaming plasmas

被引：20
|
作者：
Morita, T. [1 ]
Sakawa, Y. [1 ,2 ]
Tomita, K. [3 ]
Ide, T. [4 ]
Kuramitsu, Y. [1 ]
Nishio, K. [2 ]
Nakayama, K. [3 ]
Inoue, K. [3 ]
Moritaka, T. [1 ]
Ide, H. [2 ]
Kuwada, M. [2 ]
Tsubouchi, K. [4 ]
Uchino, K. [3 ]
Takabe, H. [1 ,2 ]
机构：
[1] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan
[2] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan
[3] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Fukuoka 8168580, Japan
[4] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan
来源：
PHYSICS OF PLASMAS | 2013年 / 20卷 / 09期
关键词：
COLLISIONLESS SHOCKS; ACCELERATION; WAVES;
D O I：
10.1063/1.4821967
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We report the first direct measurement of temporally and spatially resolved plasma temperatures at a shock as well as its spatial structure and propagation in laser-produced counter-streaming plasmas. Two shocks are formed in counter-streaming collisionless plasmas early in time, and they propagate opposite directions. This indicates the existence of counter-streaming collisionless flows to keep exciting the shocks, even though the collisional effects increase later in time. The shock images are observed with optical diagnostics, and the upstream and downstream plasma parameters of one of the shocks are measured using Thomson scattering technique. (C) 2013 AIP Publishing LLC.
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页数：6
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