摘要
铈掺杂硅酸钇镥(LYSO∶Ce)晶体显示出优异的闪烁性能,并在核医学、高能物理及安全检查等领域具有广泛应用。本文综述了LYSO∶Ce闪烁晶体的晶体结构、发光机制、晶体生长存在的主要问题以及LYSO∶Ce晶体可能的发展方向。同时,梳理了LYSO∶Ce晶体生长过程中常见问题及对应的解决方案,并进一步讨论了Ce^(3+)占位情况以及Ce^(4+)与闪烁性能之间的关系。此外还展示了本团队在LYSO∶Ce晶体生长的最新研究成果,使用中频感应提拉炉生长出尺寸为Φ95.42 mm×200 mm的LYSO∶Ce闪烁晶体。
Cerium-doped lutetium-yttrium oxyorthosilicate(LYSO∶Ce)crystals show excellent scintillation properties,and has been widely used in the filed of nuclear medicine,high-energy physics and safety inspection.The crystal structure,luminescent mechanism,main problems in the crystal growth and the possible direction of development of LYSO∶Ce scintillation crystals are reviewed in this paper.Furthermore,the common issues with corresponding solutions in the crystal growth of LYSO∶Ce are summarized,and further the space occupation of Ce^(3+) ions and the relationship between Ce^(4+) ions and scintillation properties are discussed.In addition,the latest research results from our groups in LYSO∶Ce crystal growth are displayed and the dimension of Φ95.42 mm×200 mm of LYSO∶Ce scintillation crystal was grown using medium frequency induction furnace.
作者
顾鹏
王鹏刚
官伟明
郑丽
周燕
GU Peng;WANG Penggang;GUAN Weiming;ZHENG Li;ZHOU Yan(Meishan Boya Advanced Materials Co., Ltd., Meishan 620000, China;Southwest Petroleum University-Nancong Campus, Nancong 637000, China)
出处
《人工晶体学报》
CAS
北大核心
2021年第10期1858-1869,共12页
Journal of Synthetic Crystals
关键词
LYSO∶Ce
闪烁晶体
晶体结构
晶体生长
闪烁机制
氧空位
LYSO∶Ce
scintillation crystal
crystal structure
crystal growth
scintillation mechanism
oxygen vacancy
