利用GEANT4模拟研究RIBLL中的飞行时间探测器  

A Simulation Study of the Time of Flight Detector in RIBLL with GEANT4

作　　者：张登高[1] 李加兴[1] 钟明飞[1] 

机构地区：[1]西南大学物理科学与技术学院,重庆400715

出　　处：《西南师范大学学报（自然科学版）》2010年第2期22-26,共5页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(10205019;10475098);西南大学博士基金资助项目(SWNUB2005028)

摘　　要：基于GEANT4对兰州放射性束流线(RIBLL)中的飞行时间探测器进行了系统的模拟研究,得到了入射粒子在不同入射位置情况下光子总的收集效率、光子到达光阴极3种情况的收集效率和时间分辨,给出了影响探测器时间分辨的主要因素和改进方案.Based on GEANT4, the authors have systematically simulated the time detector in Radioactive Ion Beam Line in Lanzhou（RIBLL）. The photon total collection efficiency, photon collection efficiency and time resolution under 3 cases arriving at photocathode, following the incident particles at different position, were obtained. The main factors, which can affect the detector＇s performance, were given and some improve schemes were proposed.

关 键 词：兰州放射性束流线(RIBLL) 塑料闪烁体 飞行时间(TOF) 时间分辨 

分 类 号：O572.212[理学—粒子物理与原子核物理]