Kinetic Analysis of

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著者

    • Hegi Kotaro
    • <sup>1</sup>Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Hakozaki, Fukuoka 812-8581
    • Matsuura Hideaki
    • <sup>1</sup>Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Hakozaki, Fukuoka 812-8581
    • Mitarai Osamu
    • <sup>3</sup>Institute of Industrial Science and Technical Research, Kyushu Tokai University, Toroku, Kumamoto 862-8652

抄録

In D–T fusion plasma seeded with a small amount of 6Li, monochromatic 0.429-, 0.478- and 0.981-MeV <TEX>$\gamma$</TEX>rays are produced in the <TEX>$\text{$</TEX>^{6}<TEX>$Li}+\text{D}$</TEX>and <TEX>$\text{$</TEX>^{6}<TEX>$Li}+\text{T}$</TEX>nuclear reactions. In the present paper we investigate these processes in the appropriate plasma kinetic model. The non-Maxwellian tails of deuteron and triton distribution functions created due to nuclear elastic scattering of D–T <TEX>$\alpha$</TEX>-particles by fuel ions are found to enhance crucially production of the diagnostic <TEX>$\gamma$</TEX>rays. This result can be considered as the first explicit demonstration that in a fusion plasma the role of suprathermal reaction channels induced by energetic knock-on ions can become comparable with (or even dominate) that of thermal ones. Possibilities of fuel ion and <TEX>$\alpha$</TEX>-particle diagnostics using the reaction-produced <TEX>$\gamma$</TEX>rays are also discussed. It is pointed out for the first time that the behavior of <TEX>$\alpha$</TEX>-particles during slowing-down could be diagnosed by detecting 0.981-MeV <TEX>$\alpha$</TEX>-rays emitted in a nuclear reaction between knock-on tritons and 6Li admixture ions.

収録刊行物

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 75(2), 024801-024801-8, 2006-02-15

    一般社団法人日本物理学会

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  • On Feasibility of Absolute Measurements of Ion Temperature in D–3He Fusion Plasma

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各種コード

  • NII論文ID(NAID)
    110004086890
  • NII書誌ID(NCID)
    AA00704814
  • 本文言語コード
    EN
  • 資料種別
    ART
  • ISSN
    0031-9015
  • NDL 記事登録ID
    7813380
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A404
  • データ提供元
    CJP書誌  NDL  NII-ELS  J-STAGE  JPS  JPS 
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