?5.5cm Lu_3Al_5O_(12)∶Pr晶体生长与闪烁性能研究  

Study on Crystal Growth of ?5.5cm Lu_3Al_5O_(12)∶Pr Single Crystal and its Scintillation Properties

作　　者：丁雨憧[1] 刘军[1] 冯大建[1] 李和新[1] 岑伟[1] 王佳[1] 石自彬[1] 龙勇[1] 付昌禄[1] 胡少勤[1] 

机构地区：[1]中国电子科技集团公司第二十六研究所,重庆400060

出　　处：《压电与声光》2015年第4期543-545,549,共4页Piezoelectrics & Acoustooptics

基　　金：中国电子科技集团公司第二十六研究所青年创新基金资助项目(26CX-1402)

摘　　要：采用中频感应提拉法生长出?55mm×100mm的好质量Lu3Al5O12∶Pr(Pr∶LuAG)晶体,并对晶体进行X线粉末衍射(XRD)测试,计算了晶胞参数,测试了晶体室温下的透过率、X线激发发射谱、脉冲高度谱和脉冲形状谱。实验结果表明,Pr∶LuAG晶体的发光中心波长为308nm,光输出为19 000光子/MeV,能量分辨率为7.2%@662keV,衰减时间为23ns。Pr ： LuAG single crystal in size of 5g555 mm×100 mm was grown by Cz method with radio frequency heating, and this crystal was verified to be good quality. The cell parameters of Pr： LuAG single crystal were calcu- lated based on the data of XRD. The transparency,XEL,light yield and decay time also were measured at room tem- perature. The experimental results showed that the emission light of Pr= LuAG single crystal was centered at 308 nm,the light yield was about 19 000 photons/MeV, the energy resolution was about 7.20% @ 662 keV gama ray exciting, and the decay time was about 23 ns.

关 键 词：镥铝石榴石晶体 闪烁晶体 提拉法生长 光输出 衰减时间 

分 类 号：TN384[电子电信—物理电子学]