Generalized Fokker-Planck Approximations of Particle Transport with Highly Forward-Peaked Scattering

摘要

The Fokker-Planck equation is often used to approximate the description of particle transport processes with highly forward-peaked scattering. Pomraning has shown that if the physical scattering kernel is sufficiently dominated by small-angle scattering, then the Fokker-Planck equation is an asymp- totic approximation to the linear Boltzmann equation.