Study on Fast Deuteron Diagnostics Method Using Fast <sup>3</sup>He Visible Spectra in the Large Helical Device Deuterium Plasma

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  • KIMURA Kento
    Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University
  • MATSUURA Hideaki
    Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University
  • ITOH Chujo
    Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University
  • KAWAMOTO Yasuko
    National Institute for Fusion Science, National Institutes of Natural Sciences
  • OISHI Tetsutaro
    National Institute for Fusion Science, National Institutes of Natural Sciences Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI
  • GOTO Motoshi
    National Institute for Fusion Science, National Institutes of Natural Sciences Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI
  • OGAWA Kunihiro
    National Institute for Fusion Science, National Institutes of Natural Sciences Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI
  • NISHITANI Takeo
    Graduate School of Engineering, Nagoya University
  • ISOBE Mitsutaka
    National Institute for Fusion Science, National Institutes of Natural Sciences Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI
  • OSAKABE Masaki
    National Institute for Fusion Science, National Institutes of Natural Sciences Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI

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  • Study on Fast Deuteron Diagnostics Method Using Fast 3He Visible Spectra in the Large Helical Device Deuterium Plasma

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<p>Fast ion diagnostic is one of the most crucial plasma diagnostics for nuclear fusion investigation. A new diagnostic method for fast ions has been proposed using visible spectra of 3He produced by a deuteron-deuteron reaction. This diagnostic method has a better energy resolution than methods using neutron/γ-ray and is superior to conventional spectroscopy in measuring high energy (MeV order) ions. This diagnostic method has been predicted using numerical analysis for ITER, but no verification experiments have been performed yet. In this study, we examined the measurability of this diagnostic method in the large helical device (LHD) deuterium plasma. Although very dependent on the measurement geometry and the spectrometer performance, it may be possible to measure the fast 3He visible spectrum.</p>

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 18 (0), 1403002-1403002, 2023-01-30

    The Japan Society of Plasma Science and Nuclear Fusion Research

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