MCNP simulation and experimental study in situ low-grade copper analysis based on PGNAA.

A prompt gamma neutron activation analysis (PGNAA) facility utilizing Cf source has been developed for in situ analysis of copper samples. Monte Carlo simulation is employed to determine optimal sizes for neutron moderator, gamma-ray shielding material, and thermal neutron absorber. Subsequently, based on the parameters optimized by MCNP, the PGNAA facility was constructed.