Speaker
Description
The spectral fluence rate of the thermalized neutron field obtained by slowing down the 14 MeV fusion neutrons produced at the accelerator-driven Frascati Neutron Generator is measured by means of the Bonner Sphere Spectrometer. Neutron thermalization is achieved by means of a moderator assembly made of a copper pre-moderator and a polyethylene moderator.
A Monte Carlo simulation reproducing the experimental set-up is also performed by means of the MCNP code and the results are compared to the experimental data. The benchmarked Monte Carlo is then used to predict the brilliance of a thermal moderator operating at a potential high intensity 14 MeV neutron continuous source featuring a neutron emission rate of 10$^{15}$ s$^{-1}$. The results obtained show that if a D-T neutron source featuring a continuous neutron emission rate of 10$^{15}$ s$^{-1}$ could be made operative, it may be exploited for neutron science.
