Speaker
Description
Among commercially available neutron sources, the ²⁴¹Am-⁹Be proves to be useful in both industrial, education and research environments because of its constant neutron flux and longer working life compared to other alternatives. An accurate simulation tool of this source would allow a better understanding of the neutron energy spectrum and flux. The ⁹Be(α,n)¹²C reaction of interest is not isotropic. However, Geant4 nuclear libraries can only handle isotropic reactions, and for this reason a new source term has been developed. This talk will focus on accurately reproducing the emerging neutron and γ spectra. The simulation will be experimentally verified against commonly accepted results; it is then employed in a cylindrical water bath to analyse neutron moderation and flux in water and eventually dose from emerging particles is investigated.