Study of n-γ discrimination in low energy range (above 40 keVee) by charge comparison method with a BC501A liquid scintillation detector
Year: 2014
Type: article
Abstract: A VME-based experiment system for n-γ discrimination using the charge comparison method was established. A data acquisition program for controlling the programmable modules and processing data online via VME64X bus was developed through the use of LabVIEW. The two-dimensional (2D) scatter plots of the charge in the slow component vs. the total charge from 241 Am-Be and 252 Cf neutron sources are presented. The 2D scatter plots of the energy vs. the ratio of the charge in the slow component to the total charge of the pulses are also presented. The quality of n-γ discrimination was checked by the figure-of-merit, and the results showed good performance of n-γ discrimination at the low energy range. Neutrons and γ-rays were separated above 50 keVee (electron-equivalent energy). The quality of n-γ discrimination has been improved compared with others' results at five energies (150, 250, 350, 450, 550 keVee).
Source: Chinese Physics C
Authors: Yong-Hao Chen, Xi-Meng Chen, Xiao-Dong Zhang, Jia-Rong Lei, Li An, Jian-Xiong Shao, Pu Zheng, Xin-Hua Wang, Chuan-Xin Zhu, Tie He, Jian Yang
Institutions: China Academy of Engineering Physics, Lanzhou University
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1993917090