Computation of D-T Neutron Yields in Thick-target With Surface Layer

A calculation program based on Monte Carlo software SRIM was developed to calculate the D-T neutron yield in titanium tritide thick-target with titanium oxide surface layer. The neutron yields of 200 keV deuteron vertical incidence to TiT_1.0 film with various thicknesses of TiO₂ top layer were obtained. The neutron yield decreases by 10% and 20% with thickness of TiO₂ layer of 0.1 μm and 0.2 μm respectively. This means can be applied to the calculations of other surface layer, including contamination layer, protective layer, etc.