现代应用物理2025，Vol.16Issue(2)：45-51,7.DOI:10.12061/j.issn.2095-6223.202407015
用于放射性氙测量的高分辨闪烁体β探测器设计
Design of High-Resolution β Scintillator Detector for Radioxenon Measurement
摘要
Abstract
Radioxenon isotopes are an important monitoring content of the International Monitoring System.The β-γ coincidence method based on plastic scintillator detectors and high-purity germanium detectors is widely used in the measurement of radioactive xenon isotopes,and high-resolution plastic scintillator detectors are a focus of current research in this field.In this paper,the energy resolution of plastic scintillator detectors is studied based on Geant4 simulation.It is found that the statistical fluctuation of fluorescence photons is the main factor affecting the energy resolution of plastic scintillator detectors.Then,the design of a rectangle plastic scintillator detector based on SiPM array is proposed.Compared with the traditional plastic scintillator detector with PMT readout,the simulated energy resolution of new designed SiPM-based detector improves about 30％.The SiPM-based detector meets the requirements of 131mXe and 133mXe measurement and is of guiding significance for the development of high-resolution scintillator detectors.关键词
放射性氙/闪烁体探测器/能量分辨率/SiPM/Geant4Key words
radioxenon/plastic-scintillator detector/energy resolution/SiPM/Geant4分类
能源科技引用本文复制引用
牛亚洲,王世联,张瑞芹,李奇,樊元庆,赵允刚,张新军,贾怀茂,李芮莹,郭启隆..用于放射性氙测量的高分辨闪烁体β探测器设计[J].现代应用物理,2025,16(2):45-51,7.基金项目
国家重点研发计划资助项目(2022YFF0607300) （2022YFF0607300）
