<RESEARCH REPORT>Collisional Relaxation of Electron Tail Distribution

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概要

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• Relaxation due to the Coulomb collisions of the electron velocity distribution function with a high energy tail is investigated in detail. In the course of the relaxation, a 'saddle' point can be created in velocity space owing to ν^<-3> dependence of the deflection rate and a positive slope or a 'dip' appears in the tail direction. The time evolution of the electron tail is studied analytically. A comparison is made with numerical results by using a Fokker-Planck code. Also discussed is the kinetic instability concerned with the positive slope during the relaxation.

• 核融合科学研究所の論文

著者

• Okamoto Masao

  Research Information Center Institute Of Plasma Physics Nagoya University

• Yamagiwa Mitsuru

  Research Information Center, Institute of Plasma Physics, Nagoya University

• Yamagiwa Mitsuru

  Research Information Center Institute Of Plasma Physics Nagoya University

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