Currently the MultiGroupMC Monte Carlo code solves Monte Carlo simulations on a Cartesian mesh assuming constant material properties throughout the entire geometry. This should be altered so that material properties can very depending on the cell. This will require a slight re-working of the structure so that each cell contains a material instance which can be accessed during the Monte Carlo simulation.
Currently the MultiGroupMC Monte Carlo code solves Monte Carlo simulations on a Cartesian mesh assuming constant material properties throughout the entire geometry. This should be altered so that material properties can very depending on the cell. This will require a slight re-working of the structure so that each cell contains a material instance which can be accessed during the Monte Carlo simulation.