A preliminary numerical experiment is conducted for laboratory experiments on the generation of magnetized collisionless shocks with high-power lasers by using one-dimensional particle-in-cell simulation. The present study deals with the interaction between a moving aluminum plasma and a nitrogen plasma at rest. In the numerical experiment, the nitrogen plasma is unmagnetized or magnetized by a weak external magnetic field. Since the previous study suggested the generation of a spontaneous magnetic field in the piston (aluminum) plasma due to the Biermann battery, the effect of the magnetic field is of interest. Sharp jumps of the electron density and magnetic field are observed around the interface between the two plasmas as long as one of the two plasmas is magnetized, which indicates the formation of tangential electron-magneto-hydro-dynamic discontinuity. When the aluminum plasma is magnetized, strong compression of both the density and the magnetic field takes place in the pure aluminum plasma during the gyration of nitrogen ions in the aluminum plasma region. The formation of a shock downstream is obtained from the shock jump condition. The results suggest that the spontaneous magnetic field in the piston (aluminum) plasma plays an essential role in the formation of a perpendicular collisionless shock.
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March 2019
Research Article|
March 05 2019
Full particle-in-cell simulation of the interaction between two plasmas for laboratory experiments on the generation of magnetized collisionless shocks with high-power lasers
Takayuki Umeda
;
Takayuki Umeda
a)
1
Institute for Space-Earth Environmental Research, Nagoya University
, Nagoya 464-8601, Japan
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Ryo Yamazaki;
Ryo Yamazaki
a)
2
Department of Physics and Mathematics, Aoyama Gakuin University
, Sagamihara 252-5258, Japan
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Yutaka Ohira;
Yutaka Ohira
a)
3
Department of Earth and Planetary Science, The University of Tokyo
, Tokyo 113-0033, Japan
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Natsuki Ishizaka;
Natsuki Ishizaka
2
Department of Physics and Mathematics, Aoyama Gakuin University
, Sagamihara 252-5258, Japan
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Shin Kakuchi;
Shin Kakuchi
2
Department of Physics and Mathematics, Aoyama Gakuin University
, Sagamihara 252-5258, Japan
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Yasuhiro Kuramitsu;
Yasuhiro Kuramitsu
4
Graduate School of Engineering, Osaka University
, Osaka 565-0871, Japan
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Shuichi Matsukiyo;
Shuichi Matsukiyo
5
Faculty of Engineering Sciences, Kyushu University
, Kasuga 816-8580, Japan
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Itaru Miyata;
Itaru Miyata
2
Department of Physics and Mathematics, Aoyama Gakuin University
, Sagamihara 252-5258, Japan
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Taichi Morita
;
Taichi Morita
5
Faculty of Engineering Sciences, Kyushu University
, Kasuga 816-8580, Japan
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Youichi Sakawa
;
Youichi Sakawa
6
Institute of Laser Engineering, Osaka University
, Osaka 565-0871, Japan
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Takayoshi Sano
;
Takayoshi Sano
6
Institute of Laser Engineering, Osaka University
, Osaka 565-0871, Japan
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Shuto Sei;
Shuto Sei
2
Department of Physics and Mathematics, Aoyama Gakuin University
, Sagamihara 252-5258, Japan
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Shuta J. Tanaka;
Shuta J. Tanaka
2
Department of Physics and Mathematics, Aoyama Gakuin University
, Sagamihara 252-5258, Japan
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Hirohumi Toda;
Hirohumi Toda
2
Department of Physics and Mathematics, Aoyama Gakuin University
, Sagamihara 252-5258, Japan
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Sara Tomita
Sara Tomita
2
Department of Physics and Mathematics, Aoyama Gakuin University
, Sagamihara 252-5258, Japan
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a)
Electronic addresses: taka.umeda@nagoya-u.jp; ryo@phys.aoyama.ac.jp; and y.ohira@eps.s.u-tokyo.ac.jp
Phys. Plasmas 26, 032303 (2019)
Article history
Received:
November 05 2018
Accepted:
February 04 2019
Citation
Takayuki Umeda, Ryo Yamazaki, Yutaka Ohira, Natsuki Ishizaka, Shin Kakuchi, Yasuhiro Kuramitsu, Shuichi Matsukiyo, Itaru Miyata, Taichi Morita, Youichi Sakawa, Takayoshi Sano, Shuto Sei, Shuta J. Tanaka, Hirohumi Toda, Sara Tomita; Full particle-in-cell simulation of the interaction between two plasmas for laboratory experiments on the generation of magnetized collisionless shocks with high-power lasers. Phys. Plasmas 1 March 2019; 26 (3): 032303. https://doi.org/10.1063/1.5079906
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