摘要
为解决高能γ射线的准确测量问题,本文基于自主研发的闪烁晶体探测器研制了一套三晶电子对谱仪,测量了56 Co放射源1.5 MeV以上γ射线的双逃逸峰能谱。与使用单个LaBr 3探测器所测能谱相比,三晶电子对谱仪有效降低了峰与连续本底的比值。本文研究结果为准确测量加速器共振核反应(p,γ)及激光康普顿散射(LCS)产生的高能γ射线奠定了技术基础。
In order to solve the problem of accurate measurement for high-energyγray,a set of three-crystal electron-pair spectrometer was developed based on the self-developed scintillation crystal detector.The double-escape peak energy spectrum above 1.5 MeVγray of 56 Co source was measured.The three-crystal electron-pair spectrometer can effectively reduce the ratio of peak to continuous background compared with LaBr 3 detector.It lays the technical foundation for accurate measurement of high-energyγray from nuclear resonance reaction(p,γ)and laser Compton scattering(LCS).
作者
刘伏龙
吴笛
魏继红
杨婉莎
贺创业
郭冰
王乃彦
LIU Fulong;WU Di;WEI Jihong;YANG Wansha;HE Chuangye;GUO Bing;WANG Naiyan(Key Laboratory of Beam Technology of Ministry of Education,College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China;Department of Nuclear Physics,China Institute of Atomic Energy,Beijing 102413,China)
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2021年第2期336-342,共7页
Atomic Energy Science and Technology
基金
国家重点研发计划资助项目(2016YFA0400502)
国家自然科学基金资助项目(11655003,11975316)
国家财政部稳定支持研究经费资助项目(WDJC-2019-02)。
关键词
电子对谱仪
高能γ射线
符合
双逃逸峰
electron-pair spectrometer
high-energyγray
coincidence
double-escape peak
