Anomalous plasma acceleration in colliding high-power laser-produced plasmas

T. Morita, K. Nagashima, M. Edamoto, K. Tomita, T. Sano, Y. Itadani, R. Kumar, M. Ota, S. Egashira, R. Yamazaki, S. J. Tanaka, S. Tomita, S. Tomiya, H. Toda, I. Miyata, S. Kakuchi, S. Sei, N. Ishizaka, S. Matsukiyo, Y. KuramitsuY. Ohira, M. Hoshino, Y. Sakawa

研究成果: ジャーナルへの寄稿記事

抄録

We developed an experimental platform for studying magnetic reconnection in an external magnetic field with simultaneous measurements of plasma imaging, flow velocity, and magnetic-field variation. Here, we investigate the stagnation and acceleration in counterstreaming plasmas generated by high-power laser beams. A plasma flow perpendicular to the initial flow directions is measured by laser Thomson scattering. The flow is, interestingly, accelerated toward the high-density region, which is opposite to the direction of the acceleration by pressure gradients. This acceleration is possibly interpreted by the interaction of two magnetic field loops initially generated by the Biermann battery effect, resulting in a magnetic reconnection forming a single field loop and additional acceleration by a magnetic tension force.

元の言語英語
記事番号090702
ジャーナルPhysics of Plasmas
26
発行部数9
DOI
出版物ステータス出版済み - 9 1 2019

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plasma acceleration
laser plasmas
high power lasers
magnetic fields
Thomson scattering
magnetohydrodynamic flow
pressure gradients
electric batteries
platforms
flow velocity
velocity distribution
laser beams
lasers
interactions

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

これを引用

Anomalous plasma acceleration in colliding high-power laser-produced plasmas. / Morita, T.; Nagashima, K.; Edamoto, M.; Tomita, K.; Sano, T.; Itadani, Y.; Kumar, R.; Ota, M.; Egashira, S.; Yamazaki, R.; Tanaka, S. J.; Tomita, S.; Tomiya, S.; Toda, H.; Miyata, I.; Kakuchi, S.; Sei, S.; Ishizaka, N.; Matsukiyo, S.; Kuramitsu, Y.; Ohira, Y.; Hoshino, M.; Sakawa, Y.

:: Physics of Plasmas, 巻 26, 番号 9, 090702, 01.09.2019.

研究成果: ジャーナルへの寄稿記事

Morita, T, Nagashima, K, Edamoto, M, Tomita, K, Sano, T, Itadani, Y, Kumar, R, Ota, M, Egashira, S, Yamazaki, R, Tanaka, SJ, Tomita, S, Tomiya, S, Toda, H, Miyata, I, Kakuchi, S, Sei, S, Ishizaka, N, Matsukiyo, S, Kuramitsu, Y, Ohira, Y, Hoshino, M & Sakawa, Y 2019, 'Anomalous plasma acceleration in colliding high-power laser-produced plasmas', Physics of Plasmas, 巻. 26, 番号 9, 090702. https://doi.org/10.1063/1.5100197
Morita, T. ; Nagashima, K. ; Edamoto, M. ; Tomita, K. ; Sano, T. ; Itadani, Y. ; Kumar, R. ; Ota, M. ; Egashira, S. ; Yamazaki, R. ; Tanaka, S. J. ; Tomita, S. ; Tomiya, S. ; Toda, H. ; Miyata, I. ; Kakuchi, S. ; Sei, S. ; Ishizaka, N. ; Matsukiyo, S. ; Kuramitsu, Y. ; Ohira, Y. ; Hoshino, M. ; Sakawa, Y. / Anomalous plasma acceleration in colliding high-power laser-produced plasmas. :: Physics of Plasmas. 2019 ; 巻 26, 番号 9.
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abstract = "We developed an experimental platform for studying magnetic reconnection in an external magnetic field with simultaneous measurements of plasma imaging, flow velocity, and magnetic-field variation. Here, we investigate the stagnation and acceleration in counterstreaming plasmas generated by high-power laser beams. A plasma flow perpendicular to the initial flow directions is measured by laser Thomson scattering. The flow is, interestingly, accelerated toward the high-density region, which is opposite to the direction of the acceleration by pressure gradients. This acceleration is possibly interpreted by the interaction of two magnetic field loops initially generated by the Biermann battery effect, resulting in a magnetic reconnection forming a single field loop and additional acceleration by a magnetic tension force.",
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AU - Morita, T.

AU - Nagashima, K.

AU - Edamoto, M.

AU - Tomita, K.

AU - Sano, T.

AU - Itadani, Y.

AU - Kumar, R.

AU - Ota, M.

AU - Egashira, S.

AU - Yamazaki, R.

AU - Tanaka, S. J.

AU - Tomita, S.

AU - Tomiya, S.

AU - Toda, H.

AU - Miyata, I.

AU - Kakuchi, S.

AU - Sei, S.

AU - Ishizaka, N.

AU - Matsukiyo, S.

AU - Kuramitsu, Y.

AU - Ohira, Y.

AU - Hoshino, M.

AU - Sakawa, Y.

PY - 2019/9/1

Y1 - 2019/9/1

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