Observation of bulk-ion heating in a tokamak plasma by application of positive and negative current pulses in TRIAM-1

K. Toi, N. Hiraki, Kazuo Nakamura, O. Mitarai, Y. Kawai, Sanae Itoh

研究成果: ジャーナルへの寄稿レター

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A positive or negative current pulse induced by a pulsed toroidal electric field much higher than the Dreicer field increases the bulk-ion temperature of the plasma centre two to three times, without macroscopic plasma destruction. The decay time of the raised ion temperature agrees well with the prediction from neoclassical transport theory. The magnitude of the positive current pulse is limited by violent current disruption, and that of the negative current by a lack of MHD equilibrium which is due to a marked reduction of the total plasma current. The relevant current-driven instabilities in the turbulent heating of a tokamak plasma, skin heating and inward transfer of the energy deposition in the skin layer are briefly discussed.

元の言語英語
ページ(範囲)1169-1172
ページ数4
ジャーナルNuclear Fusion
20
発行部数9
DOI
出版物ステータス出版済み - 1 1 1980

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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