Dynamic Behavior of Turbulent Heating of Plasmas

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概要

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• Dynamical behaviors of turbulently heated plasma have been studied experimentally in three linear machines by using a particle energy analyzer, spectrometer and ruby laser. Para-meters of the plasma were covered in ranges 10^<12>∿10^<15>/cm^3 in density, 3∿17 kG in strength of the magnetic field and 1∿40 in mass number of the ions. Special attentions were paid to the dependencies of ion heating on the species of ions, strength of the magnetic field and the density of the plasma. Measurement of ion energy distribution by charge exchanged neutrals showed that a bump was observed in the high energy component during the course of resistive hump in the discharge current for the heating. In the experiment in density range of 10^<14>/cm^3,the temperature of the low energy component became lower as the plasma density increased, while those of the high energy component didn't change. Fluctuation measure-ment indicated that intense electric potential oscillations with frequencies around 10 MHz appeared in the period of resistive hump, which was considered to be responsible for heating and accerelations of ions. The oscillation seems to have a character of the wave whose phase velocity is the ion acoustic one. The heating of the low energy component is reasonably explained by a stochastic model, in which ions diffuse in velocity space by the above oscillating potential field. The high energy component is considered to be formed due to strong resonant acceleration by this potential.

• 核融合科学研究所の論文

著者

• Jacquinot J.

  Research Information Center Institute Of Plasma Physics Nagoya University:cea-euratom Fontenay-aux-r

• ADATI K.

  Institute of Plasma Physics, Nagoya University

• ADATI K.

  Research Information Center, Institute of Plasma Physics, Nagoya University

• ITO Y.

  Institute of Chemical Research, Kyoto University

• Iguchi H.

  Institute of Plasma Physics, Nagoya University

• Kumagai K.

  Research Center For Nuclear Physics Osaka. University

• Nakagawa Y.

  Research Institute for Atomic Energy, Osaka City University

• Tanikawa M.

  Research Institute for Atomic Energy, Osaka City University

• Watanabe K.

  Research Institute for Atomic Energy, Osaka City University

• Ishii K.

  Institute of Plasma Physics, Nagoya University

• Jaquinot J.

  Institute of Plasma Physics, Nagoya University

• Kawabe T.

  Institute of Plasma Physics, Nagoya University

• Kawamura T.

  Institute of Plasma Physics, Nagoya University

• Muraoka K.

  Institute of Plasma Physics, Nagoya University

• Oda T.

  Institute of Plasma Physics, Nagoya University

• Sugihara R.

  Institute of Plasma Physics, Nagoya University

• Kawasaki K.

  Institute of Plasma Physics, Nagoya University

• Yokota T.

  Institute of Plasma Physics, Nagoya University

• Sugihara R.

  Research Information Center, Institute of Plasma Physics, Nagoya University

• Kawasaki K.

  Rcnp

• Kawabe T.

  Tohoku University

• Iguchi H.

  Institute Of Physics The University Of Tsukuba:institute Of Plasma Physics Nagoya University

• Kojima T.

  Tohoku University

• Nakagawa Y.

  Research Information Center Institute Of Plasma Physics Nagoya University:research Institute For Ato

• Tanikawa M.

  Research Information Center Institute Of Plasma Physics Nagoya University:research Institute For Ato

• Kawabe T.

  Institute Of Physics The University Of Tsukuba

• Muraoka K.

  Research Information Center Institute Of Plasma Physics Nagoya University:res. Inst. For Applied Mech. Kyushu Univ.

• Ito Y.

  Institute of Physics, The University of Tsukuba:Physics Department, Hiroshima University

• Oda T.

  Research Information Center, Institute of Plasma Physics, Nagoya University:Hiroshima Univ.

• Kawamura T.

  Institute of Immunological Science, Hokkaido University

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