Summary of very low-q discharges in TORIUT tokamaks.

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  • Yamada H.
    Department of Nuclear Engineering, University of Tokyo
  • Hamaguchi S.
    Department of Physics, University of Tokyo
  • Hattori K.
    Department of Nuclear Engineering, University of Tokyo
  • Kamada Y.
    Department of Nuclear Engineering, University of Tokyo
  • Kikuchi M.
    Japan Atomic Energy Research Institute
  • Morikawa J.
    Department of Nuclear Engineering, University of Tokyo
  • Nihei H.
    Department of Nuclear Engineering, University of Tokyo
  • Yoshida Z.
    Department of Nuclear Engineering, University of Tokyo
  • Inoue N.
    Department of Nuclear Engineering, University of Tokyo

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Other Title
  • Summary of Very Low q Discharges in TOR

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Abstract

Three different schemes to realize a very low-qdischarge (qa< 2) have been demonstrated in the TORIUT tokamaks. They are (1) fast current-rise method, (2) application of the ergodization effect of non-resonant helical field, and (3) high filling-pressure operation. Each method has been proved to be independently effective to suppress the major disruption caused by the (m=2, n=1) tearing mode during the current rising-up phase and provides a path into the very low-qregime through the barrier atqa=2.

Journal

  • Kakuyūgō kenkyū

    Kakuyūgō kenkyū 56 (5), 341-354, 1986

    The Japan Society of Plasma Science and Nuclear Fusion Research

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