Orbit-averaged Guiding-center Fokker-Planck Operator

TL;DR

This paper introduces a comprehensive orbit-averaged guiding-center Fokker-Planck operator designed for numerical analysis of transport phenomena in axisymmetric magnetized plasmas, capturing key invariants in a 3D space.

Contribution

It presents a novel, general operator that accurately models transport processes in guiding-center invariant space for plasma physics applications.

Findings

Provides a new operator suitable for numerical simulations.

Captures transport in a 3D guiding-center invariant space.

Enhances understanding of plasma transport processes.

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 $\ov{\psi}$, the minimum-B pitch-angle coordinate $\xi_{0}$, and the momentum magnitude $p$.