Neutron energy spectrum calculation of accelerator target for fast neutron resonant technology

Fast Neutron Resonant Technology(FNRT) has been studied the ability to characterize a material at the molecular and atomic levels. FNRT has been able to determine concentrations of elements H, C, N, and O in explosives and drugs comparable to many other common materials. The way to detect them is to measure an object's effective attenuation coefficients and total atomic content. Contraband can be identified by their characteristic elemental composition. The object-detector assembly rotates around the neutron source and different energy(2∼6 MeV) neutrons can be obtained at different angles from a D-D neutron source. Target data was obtained using the DROSG-2000: neutron source reaction