原子能科学技术Issue(6)：1132-1135,4.DOI:10.7538/yzk.2014.48.06.1132
keV能区中子注量率测量初级标准装置研制
Development of Primary Standard Detector for Neutron Fluence Rate Measurement in keV Region
李玮 1陈军 1韩善彪 2李春娟 1王志强 1骆海龙 1刘毅娜 1张伟华1
作者信息
- 1. 中国原子能科学研究院 计量与校准技术重点实验室，北京 102413
- 2. 环境保护部 核与辐射安全中心，北京 100082
- 折叠
摘要
Abstract
Many types of neutron detectors are resonant in keV region ,and the cross section is not accurately known . Therefore , it can’ t be used as primary standard detector for neutron fluence rate measurement in keV region .The cross section of 6 Li is accurately known in this energy region ,and the LiF-SSD detector system was designed w hich consists of 6 LiF conversion and Si semiconductor detector .T he primary standard detector of neutron fluence rate measurement in keV region was established . The programs of SRIM and TRIM were used to evaluate the count rate of the LiF-SSD detector .The response of LiF-SSD detector calculation program was developed based on Geant4 .The pulse height distribution of 27.4 keV neutron was calculated .Based on the reaction of 45Sc(p ,n)45 Ti ,the pulse height distribution of 27.4 keV neutron was measured ,and it is close to calculation result .关键词
keV能区/脉冲幅度谱/初级标准装置Key words
keV region/pulse height distribution/primary standard detector分类
数理科学引用本文复制引用
李玮,陈军,韩善彪,李春娟,王志强,骆海龙,刘毅娜,张伟华..keV能区中子注量率测量初级标准装置研制[J].原子能科学技术,2014,(6):1132-1135,4.
