【作者】 何景棠； 吕雨生； 苟全补； 李祖豪； 董晓黎；

【Author】 HE Jing-tang, LU Yu-sheng, GOU Quan-bu, LI Zu-hao, DONG Xiao-li (Institute of High Energy Physics , Chinese Academy of Sciences ,Beijing 100039)

【机构】 中国科学院高能物理研究所；

【摘要】 叙述了国产钨酸铅晶体(PWO)的主要性能,包括激发光谱和发射光谱,透过率,光产额,发光衰减时间,辐照损伤及其恢复,收光均匀性,以及时间分辨率和PWO晶体阵列对高能光子的能量分辨。还介绍世界上一些中高能物理实验组把钨酸铅晶体阵列用于实验的情况,并建议在北京谱仪进一步的改进中把钨酸铅晶体阵列用作亮度监测器。更多还原

【Abstract】 This paper describes the scintillating properties of lead Tungstate Crystal (PWO), including excitation spectrum, fluorescent spectrum, transmission, light yield, decay time, radiation damages and recovery , light collection un-uniformity, timing resolution and energy resolution of PWO crystal matriex for high energy photons and electrons. Some examples of high energy experimental physics group to use PWO in their experiment are also introduced. A proposal of possible use of PWO crystal in the further improvement on BES are presented.更多还原