Slowing-Down Dynamics of Fast Particles in Plasmas via the Fokker-Planck Equation

D. Anderson; M. Lisak; F. Andersson; T. F&uuml;l&ouml;p

doi:dx.doi.org/10.13182/NSE04-A2396

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 146 / Number 1

Slowing-Down Dynamics of Fast Particles in Plasmas via the Fokker-Planck Equation

D. Anderson, M. Lisak, F. Andersson, T. Fülöp

Nuclear Science and Engineering / Volume 146 / Number 1 / January 2004 / Pages 99-105

Technical Paper / dx.doi.org/10.13182/NSE04-A2396

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A detailed discussion is given of the effects of energy diffusion and pitch-angle scattering on the slowing-down dynamics of a beam of monoenergetic particles being released with unidirectional velocity. Approximate solutions are given for characteristic averaged quantities like the pitch-angle averaged distribution function and different physically relevant velocity moments. The relation to previous exact investigations is discussed.