Numerical Calculation on a Mechanism of Current Sustainment during LHCD

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概要

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• We study time evolution of electron distribution function with a long tailduring applying of lower hybrid waves for the purpose of effective current sus-tainment. We solve numerically two dimensional Fokker-Planck equation corn-bining with the quasi-linear diffusion effects due to both the applied lower hybridwaves and the excited plasma waves of co= co,. cos (8).We find that the plasma waves excited due to the resonances with electronsnear above the thermal velocity play an important role of a recovery of the flattail against the destroy of it due to the Coulomb collisions; the quasi-lineardiffusion effects are strengthened in the velocity region of the inverse Landaudamping.We discuss the possibility of the effective current sustainment making use ofthis mechanism.

• 社団法人日本物理学会の論文
• 1985-06-15

著者

• YAMAGIWA Mitsuru

  Advanced Photon Research Center,KANSAI Research Establishment,Japan Atomic Energy Research Institute

• Michishita T

  Kyoto Univ. Kyoto Jpn

• Michishita Toshinori

  Physics Laboratory College Of General Education Kyoto University

• Okamoto Masao

  Institute Of Plasma Physics Nagoya University

• Yamagiwa Mitsuru

  Institute Of Plasma Physics Nagoya University

• OKAMOTO Masao

  Institute of Atomic Energy, Kyoto University

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