Impacts of External Momentum Torque on Impurity Particle Transport in LHD

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Author(s)

    • NUNAMI Masanori
    • National Institute for Fusion Science, National Institutes of Natural Sciences|The Graduate University for Advanced Studies
    • SATO Masahiko
    • National Institute for Fusion Science, National Institutes of Natural Sciences
    • NAKATA Motoki
    • National Institute for Fusion Science, National Institutes of Natural Sciences|The Graduate University for Advanced Studies
    • TODA Shinichiro
    • National Institute for Fusion Science, National Institutes of Natural Sciences
    • SUGAMA Hideo
    • National Institute for Fusion Science, National Institutes of Natural Sciences|The Graduate University for Advanced Studies
    • YOKOYAMA Masayuki
    • National Institute for Fusion Science, National Institutes of Natural Sciences|The Graduate University for Advanced Studies

Abstract

<p>Particle transport processes of impurity ions in a multi-ion-species plasma in the Large Helical Device are investigated by neoclassical transport simulations. While the quasi-linear gyrokinetic analyses indicate that the anomalous contribution of the impurity particle transport is radially inward-directed, it is found that the external momentum sources can cause the existence of the electron root with positive radial electric field and outward-directed neoclassical particle flux of the impurity ion.</p>

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 12(0), 1203039-1203039, 2017

    The Japan Society of Plasma Science and Nuclear Fusion Research

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