Monte Carlo Simulation of Multiple Scattering in arbitrary 3‐D geometry

MUSCAT is a Monte Carlo code for numerical simulation of Multiple Scattering. Only the general restrictive assumptions of the steady-state, scalar radiative transfer equation are required, hence the MUSCAT code can deal with a broad field of applications. The algorithm follows the physical phenomena as closely as possible and realistic 3-D problems can be handled without geometric simplifications. Special care has been devoted to the analysis and validation of the pseudo-random generator subroutine. Global validations of the code in 1-D and 2-D geometries have been successfully carried out. An example of application is reported concerning 3-D studies of visibility in foggy weather.