Transport synthetic acceleration for the solution of the one-speed nonclassical spectral SN equations in slab geometry

Abstract The nonclassical transport equation models particle transport processes in which the particle flux does not decrease as an exponential function of the particle’s free-path. Recently, a spectral approach was developed to generate nonclassical spectral S N equations, which can be numerically solved in a deterministic fashion using classical numerical techniques. This paper introduces a transport synthetic acceleration procedure to speed up the iteration scheme for the solution of the monoenergetic slab-geometry nonclassical spectral S N equations. We present numerical results that confirm the benefit of the acceleration procedure for this class of problems.