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

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抜粋

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

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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