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

Appl Radiat Isot. 2024 Feb 1;206:111224. doi: 10.1016/j.apradiso.2024.111224. Online ahead of print.ABSTRACTA prompt gamma neutron activation analysis (PGNAA) facility utilizing 252Cf 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. Five sets of experimental samples containing low-grade copper concentration of 0 %, 0.5 %, 1 %, 1.5 % and 2 % are measured with the PGNAA facility. The results show that the minimum detectable concentration of copper is 0.218 %. The maximum relative deviation of copper is 8.53 %.PMID:38324935 | DOI:10.1016/j.apradiso.2024.111224

Source: Applied Radiation and Isotopes - February 7, 2024 Category: Radiology Authors: Cao Jie Wang Reng-Bo Zhang Yan Jia Wen-Bao Zhong Chong-Gui Chen Rui Qu Jin-Hui Feng Yang-Yang Hao Jun Source Type: research