用于强γ环境中测量中子参数的薄膜塑料闪烁探测器(英文)  

Thin Plastic Scintillating Foil for Measuring Pulsed Neutron Flux in High Gamma-Ray Environment

作　　者：欧阳晓平[1] 李真富[2] 王群书[1] 霍裕昆[3] 

机构地区：[1]清华大学工程物理系,北京100084 [2]西北核技术研究所,西安710024 [3]复旦大学现代物理研究所,上海200433

出　　处：《高能物理与核物理》2005年第4期399-403,共5页High Energy Physics and Nuclear Physics

基　　金：西北核技术研究所A类项目资助~~

摘　　要：提出了在强γ环境中脉冲中子通量的薄膜闪烁体测量方法.根据其与中子、γ响应的理论计算结果,研制成功一种对γ不灵敏,用于探测快脉冲中子通量的新型探测器.该探测器由塑料薄膜闪烁体+光电探测器构成.与传统探测器相比,该探测器具有如下特点1.高中子灵敏度;2.高n/γ分辨;3.在给定能区具有平坦的能量响应.A new conception of measuring pulsed neutron flux in high gamma-ray environment with a thin plastic scintillating foil is presented. Based on the calculations of the response to neutrons and gamma-rays, a new gamma-insensitive detector for detecting fast rising, transient neutron flux has been developed and preliminarily tested, which comprises a thin plastic scintillating foil of ST401 (TPSF) and a photomultiplier tube (or a photodiode). The detector exhibits three distinct properties compared with the conventional ones: (1) high neutron sensitivity, (2) high n/γ discrimination, and (3) flat response in the given neutron energy range.

关 键 词：塑料闪烁探测器 中子参数 环境 中子通量 光电探测器 中子灵敏度 测量方法 计算结果 研制成功 塑料薄膜 能量响应 闪烁体 脉冲 

分 类 号：TL812[核科学技术—核技术及应用] TL816.3