On the use of free code tools to simulate the propagation of radiation following dirty bomb explosions in sensible contextsRiccardo Quaranta, Gian Marco Ludovici, Guglielmo Manenti, Pasqualino Gaudio and Andrea MaliziaEPJ Web Conf., 288 (2023) 06009DOI: https://doi.org/10.1051/epjconf/202328806009