Velocity Field Estimation using Tomography in a Cylindrical Plasma

DOI Web Site Open Access
  • NISHIMURA Daiki
    Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • FUJISAWA Akihide
    Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University
  • NAGASHIMA Yoshihiko
    Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University
  • MOON Chanho
    Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University
  • YAMASAKI Kotaro
    Graduate School of Advanced Science and Engineering, Hiroshima University
  • NISHIZAWA Takashi
    Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University
  • KOBAYASHI Taiki
    Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • KOBAYASHI Tatsuya
    Research Institute for Applied Mechanics, Kyushu University National Institute for Fusion Science, National Institute of Natural Sciences
  • SHIMIZU Akihiro
    Research Institute for Applied Mechanics, Kyushu University National Institute for Fusion Science, National Institute of Natural Sciences
  • TOKUZAWA Tokihiko
    Research Institute for Applied Mechanics, Kyushu University National Institute for Fusion Science, National Institute of Natural Sciences

Description

<p>This article presents a new method, called extended Rotational Movement Analysis (e-RoMA), to estimate the velocity field of a cylindrical plasma from its two-dimensional images based on Fourier-Bessel function expansion. The proposed method is applied to tomography images of a plasma produced in a linear cylindrical device PANTA and succeeded in obtaining the two- dimensional velocity field. The first results suggest an issue to be investigated, that is, the presence of azimuthal asymmetry in the velocity field.</p>

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 19 (0), 1201005-1201005, 2024-01-26

    The Japan Society of Plasma Science and Nuclear Fusion Research

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