Lu_(3)Al_(5)O_(12)基闪烁陶瓷研究进展  

Research Progress of Lu_(3)Al_(5)O_(12)-based Scintillation Ceramics

作　　者：武彤 王玲 贺欢[1] 王慧 申慧 刘茜 石云[1] WU Tong;WANG Ling;HE Huan;WANG Hui;SHEN Hui;LIU Qian;SHI Yun(State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;Central China Normal University, Wuhan 430079, China;Shanghai Institute of Technology, Shanghai 201418, China)

机构地区：[1]中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室,上海200050 [2]华中师范大学,湖北武汉430079 [3]上海应用技术大学,上海201418

出　　处：《发光学报》2021年第7期917-937,共21页Chinese Journal of Luminescence

基　　金：国家自然科学基金(61475175,11005139);上海市科学技术委员会基金(19DZ1100703,18511110400);国家重点研发计划(2016YFB0701004);中国科学院战略性先导科技专项(XDA22000000);上海市科委扬帆人才计划(17YF1421500)资助项目。

摘　　要：介绍了近年来国内外镥铝石榴石(Lu_(3)Al_(5)O_(12),LuAG)基闪烁陶瓷的研究进展,总结了LuAG的晶体结构和物化性能、LuAG基闪烁陶瓷的制备方法和结构缺陷研究、组分调控和材料计算在设计新型LuAG基闪烁材料方面的创新成果等。其中稀土Ce^(3+)和Pr^(3+)掺杂的LuAG闪烁陶瓷研究进展较快,部分组分已经实现闪烁性能优于同类单晶,并向器件化推进。Ce∶LuAG陶瓷因其高光效和优异的抗辐照损伤性能,被列为高能物理新一代电磁量能器的备选材料;Pr∶LuAG具有快衰减时间和高温荧光热稳定性,在核医学PET成像和油井勘测等领域显示了应用潜力。基于缺陷工程和能带工程的思想,通过Mg^(2+)、Y^(3+)等掺杂调控基质组分,Ce∶LuAG和Pr∶LuAG陶瓷在闪烁性能上都获得突破性提升;基于透明陶瓷技术,高光学质量的LuAG基闪烁陶瓷将具有重要的应用前景和发展潜力。Recent research progress of lutetium aluminum garnet(Lu_(3)Al_(5)O_(12),LuAG)based scintillation ceramics is introduced.The crystal structure,physical and chemical properties,fabrication methods and structural defects of LuAG-based scintillation ceramics,as well as the novel results in the design of LuAG-based scintillation materials through composition engineering and theory calculation,are summarized in detail.Among those,fruitful progress have been made in Ce^(3+) and Pr^(3+) doped LuAG scintillation ceramics,better scintillation properties than their single crystal analogous have been achieved in some ceramic components.The devices assembling were developed correspondingly.Herein,Ce∶LuAG ceramics are considered as the candidate materials for the new generation of electromagnetic calorimeters in high energy physics field due to their high luminescence efficiency and excellent radiation hardness performance.Pr∶LuAG has fast decay time and high temperature luminescence thermal stability,showing potential applications in nuclear medicine PET imaging and well-logging.Based on the idea of defect engineering and band gap engineering,breakthrough has been achieved on their scintillation properties improvement through Mg^(2+) and Y^(3+) co-doping.Based on transparent ceramic technology,LuAG-based scintillation ceramics with high optical quality show important application prospect and development potential.

关 键 词：Lu_(3)Al_(5)O_(12)(LuAG) 闪烁陶瓷 缺陷 Ce∶LuAG陶瓷 Pr∶LuAG陶瓷 

分 类 号：TQ174[化学工程—陶瓷工业]