硅酸铋——一种快计时重闪烁新型多功能晶体材料  

Bi4Si3O12:an Important Heavy Scintillation with Fast Decay Time and New Multi-functional Crystal Materials

作　　者：肖学峰[1,2,3,4] 徐家跃 韦海成 张欢[1,2] 张学锋[1,5] XIAO Xuefeng;XU Jiayue;WEI Haicheng;ZHANG Huan;ZHANG Xuefeng(Key Laboratory of Physics and Photoelectric Information Functional Materials Sciences and Technology,North Minzu University,Yinchuan 750021;College of Electric and Information Engineering,North Minzu University,Yinchuan 750021;School of Materials Science and Engineering,Shanghai Institute of Technology,Shanghai 201418;School of Materials Science and Engineering,Tongji University,Shanghai 201804;Ningxia Ju Jing Yuan Crystal Technology Company Limited,Shizuishan 753000)

机构地区：[1]北方民族大学物理与光电信息功能材料重点实验室,银川750021 [2]北方民族大学电气信息工程学院,银川750021 [3]上海应用技术大学材料科学与工程学院,上海201418 [4]同济大学材料科学与工程学院,上海201804 [5]宁夏钜晶源晶体科技有限公司,石嘴山753000

出　　处：《材料导报》2019年第15期2505-2512,共8页Materials Reports

基　　金：宁夏高等学校科研项目(NGY2017161);国家自然科学基金(11864001);宁夏双一流学科建设电子科学与技术项目(NXYLXK2017A07);宁夏重点研发计划(2018BEE03015);宁夏自然科学基金(2019AAC03103);宁夏声光晶体产业化创新团队项目~~

摘　　要：硅酸铋(Bi 4Si 3O 12,BSO)晶体是一种新型的闪烁晶体,具有高辐射硬度、短衰减时间、低成本等优点,作为闪烁材料近年来引起了人们的极大关注。BSO晶体短的紫外吸收边能更好地分离Cherenkov光和闪烁光,并有效收集Cherenkov光信号,使其成为未来双读出量能器和均匀强子量能器的最佳候选材料。稀土离子掺杂BSO晶体在LED和激光等方面表现出优良的性能,被认为是一种不错的发光二极管和激光晶体材料。尽管BSO晶体是一种综合性能指标非常优异的多功能晶体,但该晶体迄今为止还没有被真正应用于实际生产中。随着大尺寸BSO晶体生长技术的突破以及稀土离子掺杂BSO晶体闪烁性能的提升,该晶体独特的双读出性能和极具优势的价格使其在高能物理、核医学成像等粒子探测和LED、激光等方面展现出巨大的应用潜力。BSO crystal is a new type of scintillation crystal,with high radiation hardness,short decay time,low cost advantages,and as a scintillation material,it has aroused people’s great attention in recent years.BSO crystal is one of the best candidate materials for homogeneous hadron calorimeters and dual-readout calorimeters because of its short ultraviolet absorption edge can better separate the Cherenkov light and scintillation light and collect Cherenkov light signal effectively.Rare earth ions doped BSO crystals are considered to be a good light-emitting diodes(LED)and laser crystal materials due to its excellent performances in LED and laser applications.Although the BSO crystal is a multifunctional crystal with excellent comprehensive performance,it has not been used in actual production so far.With the breakthrough of large-size BSO crystal growth technology and the improvement of the scintillation performance of rare earth ion-doped BSO crystals,its unique performance of dual-rea-dout and most advantage in price show a great potential in high-energy physics,nuclear medical imaging,laser application aspects and LED,etc.

关 键 词：硅酸铋晶体 闪烁晶体 双读出性能 高能物理 激光应用 发光二极管(LED)应用 

分 类 号：O782[理学—晶体学] O799