Cheng Can, Wei Zhiyong, Hei Daqian, Jia Wenbao, Li Jiatong, Cai Pingkun, Gao Youtao, Shan Qing, Ling Yongsheng
College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, 215000, China.
College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
Appl Radiat Isot. 2020 Apr;158:109045. doi: 10.1016/j.apradiso.2020.109045. Epub 2020 Jan 19.
A MCNP model of aCf source-based prompt gamma-ray neutron activation analysis (PGNAA) system for bulk sample analysis was benchmarked. The indium foils activation and aqueous samples containing chlorine were measured using the PGNAA system, and the experimental data compared to the simulations. The discrepancies between the measurements and simulations are within 6% and 20% for thermal neutron flux and prompt gamma-ray response, respectively. The results show that the simulations agree well with the measurements, and demonstrate the proposed MCNP model can represent the system.
对用于块状样品分析的基于锎源的瞬发伽马射线中子活化分析（PGNAA）系统的蒙特卡罗N粒子输运程序（MCNP）模型进行了基准测试。使用PGNAA系统测量了铟箔活化和含氯的水性样品，并将实验数据与模拟结果进行了比较。热中子通量和瞬发伽马射线响应的测量值与模拟值之间的差异分别在6%和20%以内。结果表明，模拟结果与测量结果吻合良好，证明了所提出的MCNP模型能够代表该系统。
