MC法计算塑料闪烁体探测器阵列反中微子探测效率  

Calculation of Antineutrino Detection Efficiency of Plastic Scintillator Detector Array by MC Method

作　　者：郑吉家 何高魁[1] 宛玉晴[1] ZHENG Ji-jia;HE Gao-kui;WAN Yu-qing(China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《核电子学与探测技术》2021年第5期892-896,共5页Nuclear Electronics & Detection Technology

基　　金：国家财政部稳定支持研究(WDJC-2019-05)资助。

摘　　要：利用的Geant4仿真软件,对10×10规模的塑料闪烁体探测器阵列反中微子探测效率进行仿真计算。计算了反中微子被闪烁体探测器俘获后产生的正电子与中子的能谱分布;模拟了探测器对两种粒子的能谱响应,分别计算了信号幅度与延迟符合甄别的效率,得到系统的反中微子探测效率为10%;计算了600MW大型商用压水堆满功率运行时,探测系统与堆芯不同距离条件下每天可获得的计数理论值。Geant4 simulation software is used to simulate the antineutrino detection efficiency of a 10×10 plastic scintillator detector array.The energy spectra of positrons and neutrons generated by antineutrino in the scintillator detector are calculated.The energy of responses of the detector array to the two particles are simulated,and the signal amplitude and delay time coincidence discrimination efficiency are calculated respectively.The antineutrino detection efficiency is carried out as 10%.The theoretical value of daily event counts can be obtained under different distances between the detection system and the core of a 600 MW large commercial pressurized water reactor when it is running at full power.

关 键 词：反中微子 塑料闪烁体 GEANT4 

分 类 号：TL812[核科学技术—核技术及应用]