狭缝式裂变中子探测系统伽玛辐射灵敏度实验研究  

Experimental study of the γ sensitivity of the slot-collimated PIN fission neutron detecting system

作　　者：马彦良[1] 欧阳晓平[1] 张忠兵[1] 潘洪波[1] 王群书[1] 常印忠[1] 师全林[1] 王世联[1] 

机构地区：[1]西北核技术研究所,西安710024

出　　处：《核技术》2009年第9期671-674,共4页Nuclear Techniques

摘　　要：用60Co标准源和HPGe探测器对狭缝式裂变中子探测系统(电流型)的γ灵敏度进行了实验探索研究,并计算了同样的235U-HPGe系统结构的理论能谱,实验能谱与理论能谱一致,进而得出235U-PIN系统的γ辐射灵敏度。The sensitivity of slot-collimated PIN fission neutron detecting system （electrical current type） to γ-rays was studied by using an HPGe detector （counter type） and a ^60Co source. Gamma-ray energy spectrum from a ^235U-HPGe system of the same structure was simulated. The measured energy spectrum agreed well with the simulated spectrum. By replacing the HPGe with PIN, we obtained the γ sensitivity.

关 键 词：裂变 Γ射线 能谱 灵敏度 HPGE探测器 

分 类 号：O571.1[理学—粒子物理与原子核物理]