Orbit-averaged Guiding-center Fokker-Planck Operator

preprint2009arXivOpen access

Abstract

A general orbit-averaged guiding-center Fokker-Planck operator suitable for the numerical analysis of transport processes in axisymmetric magnetized plasmas is presented. The orbit-averaged guiding-center operator describes transport processes in a three-dimensional guiding-center invariant space: the orbit-averaged magnetic-flux invariant $\ovψ$, the minimum-B pitch-angle coordinate ξ0ξ_{0}, and the momentum magnitude pp.

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