辐射防护2024，Vol.44Issue(2)：120-125,6.
基于半经验法多球中子谱仪校准
Calibration of Bonner Sphere Spectrometer using semi-empirical method
孙博文 1曾志 1张辉 1马豪 1李君利1
作者信息
- 1. 清华大学工程物理系,北京 100084||清华大学 粒子技术与辐射成像教育部重点实验室,北京 100084
- 折叠
摘要
Abstract
A new method for calibrating Bonner Sphere Spectrometer by using semi-empirical method to deduct neutron scattering background was proposed.The detection efficiency of the He-3 proportional counters in each neutron sphere of Bonner Sphere Spectrometer was calibrated by using a thermal neutron reference radiation device.The reference 241 Am-Be neutron source was measured separately by each neutron sphere of the Bonner Sphere Spectrometer,and the fluence response of each neutron sphere was given by using the semi-empirical method to deduct the scattering.Combining the results of two experiments,the energy spectrum of 241 Am-Be neutron field was obtained and the fluence calibration factor of the spectrometer was given.The results also verify the ability of calibrated Bonner Sphere Spectrometer to measure fast neutron field.关键词
多球中子谱仪/校准/中子能谱/半经验法Key words
Bonner Sphere Spectrometer/calibration/neutron energy spectrum/semi-empirical method分类
能源科技引用本文复制引用
孙博文,曾志,张辉,马豪,李君利..基于半经验法多球中子谱仪校准[J].辐射防护,2024,44(2):120-125,6.
