Characteristics of Density and Temperature Fluctuation in Fusion Edge Plasma and Implication on Scrape off Layer Width

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  • ARAI Shimpei
    Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • KOSUGA Yusuke
    Research Institute for Applied Mechanics, Kyushu University

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<p>In this study, in order to evaluate the SOL width of both density and temperature, we analyze Hasegawa-Wakatani model which includes the temperature fluctuations. Different instability regimes, i.e. drift waves and linearly unstable convective cells are studied. It is shown that convective cells are favorable in terms of the heat load reduction on the divertor. Implications on future devices, such as JT-60 SA, ITER, etc, are discussed.</p>

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 17 (0), 1403050-1403050, 2022-05-13

    The Japan Society of Plasma Science and Nuclear Fusion Research

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