For these radiation dose simulations the software packages FLUKA and FLAIR are needed. A simple installation guide for the FLUKA package can be found in chapter 3 of the FLUKA manual: FLUKA online-manual

A simple setup script to use FLUKA should have these code lines:

#!/bin/bash

export FLUPRO= <path_to_your_fluka_dir>

export FLUFOR=gfortran