YAP:Ce闪烁晶体的光致激发荧光衰减常数测量  

Laser Excited Fluorescence Decay Constant Measurementof YAP:Ce Scintillation Crystal

作　　者：张建华[1] 彭太平[1] 胡孟春[1] 王振通[1] 赵广军[2] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,绵阳621900 [2]中国科学院上海光学精密机械研究所,上海201800

出　　处：《人工晶体学报》2006年第5期1057-1060,共4页Journal of Synthetic Crystals

摘　　要：用波长为266nm的激光激发不同尺寸、不同掺Ce^3＋浓度的YAP：Ce闪烁晶体，测量其光致激光荧光衰减常数，测量结果表明：YAP：Ce闪烁晶体的光致荧光衰减常数约为18．2ns，且与实验晶体厚度及Ce^3＋掺杂浓度（0．1％～0．6％原子分数）无关。In this paper laser excited （excitation at 266nm） fluorescence decay constants of YAP： Ce scintillation crystals with different sizes and various Ce^3＋ dopant concentrations were measured. The results revealed that the laser excited fluorescence decay constant of YAP：Ce scintillator crystal is about 18.2ns, and the decay time is independent of its size and doped concentration of Ce^3＋ within the range from 0.1 at% to 0.6at%.

关 键 词：YAP:Ce闪烁晶体 激光 衰减常数 指数拟合 

分 类 号：TL812[核科学技术—核技术及应用] TL816