Correlation Analysis between Density and Magnetic Field Low Frequency Fluctuations in Improved Confinement Mode on LHD

DOI 機関リポジトリ HANDLE Web Site 参考文献18件
  • HU Wenqing
    The Graduate University for Advanced Studies, SOKENDAI
  • KOBAYASHI Tatsuya
    The Graduate University for Advanced Studies, SOKENDAI National Institute for Fusion Science, National Institutes of Natural Sciences
  • SUZUKI Yasuhiro
    The Graduate University for Advanced Studies, SOKENDAI National Institute for Fusion Science, National Institutes of Natural Sciences
  • YOSHINUMA Mikiro
    National Institute for Fusion Science, National Institutes of Natural Sciences
  • TOKUZAWA Tokihiko
    The Graduate University for Advanced Studies, SOKENDAI National Institute for Fusion Science, National Institutes of Natural Sciences
  • IDA Katsumi
    National Institute for Fusion Science, National Institutes of Natural Sciences

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抄録

<p>A plasma density fluctuation signal was measured by the recently-installed Beam Emission Spectroscopy (BES). A time-dependent analysis was performed for a discharge in the Large Helical Device (LHD) and compared with the magnetic fluctuation. While the fundamental frequency peak shows a high correlation between the density fluctuation and the magnetic fluctuation, the higher harmonic components have smaller or even negligible correlation. As a possible mechanism that makes the density fluctuation and the magnetic fluctuation different, the relation between the MHD mode and the transport is discussed.</p>

収録刊行物

  • Plasma and Fusion Research

    Plasma and Fusion Research 16 (0), 2402031-2402031, 2021-03-19

    一般社団法人 プラズマ・核融合学会

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