A new derivation of Akcasu’s “MLP” equations for 1-D particle transport in stochastic media

This paper presents a new derivation of Akcasu’s modified Levermore–Pomraning (MLP) model, which estimates the ensemble-averaged angular flux for particle transport problems in 1-D geometrically random media. The significant new feature of the MLP equations is that, unlike the earlier Levermore–Pomraning (LP) model, the MLP equations are exact for certain classes of problems with scattering. We also show, via asymptotic analyses, that the MLP equations are accurate in the atomic mix and diffusion limits.