Аннотация:In this paper we investigate time-dependent backscattering halo of a pulsed light beam in a layer of scattering medium. We simulate the polarized radiative transfer in the layer numerically with the three-dimensional upwind-difference scheme. This immediately reveals the dynamic halo effect which we investigate.Finally, we validate our results against Monte-Carlo radiative transfer simulations and analyze time-dependent structure of the light field using the simulation results.