| LYSO∶Ce闪烁晶体的研究进展 |
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| 引用本文： | 顾鹏,王鹏刚,官伟明,郑丽,周燕.LYSO∶Ce闪烁晶体的研究进展[J].人工晶体学报,2021,50(10):1858-1869. |
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| 作者姓名： | 顾鹏 王鹏刚 官伟明 郑丽 周燕 |
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| 作者单位： | 1.眉山博雅新材料有限公司,眉山 620000;2.西南石油大学南充校区,南充 637000 |
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| 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Ce3+占位情况以及Ce4+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。
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| 关 键 词： | LYSO∶Ce 闪烁晶体 晶体结构 晶体生长 闪烁机制 氧空位 |
| 收稿时间： | 2021-06-02 |
Research Progress on LYSO:Ce Scintillation Crystals |
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| GU Peng,WANG Penggang,GUAN Weiming,ZHENG Li,ZHOU Yan.Research Progress on LYSO:Ce Scintillation Crystals[J].Journal of Synthetic Crystals,2021,50(10):1858-1869. |
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| Authors: | GU Peng WANG Penggang GUAN Weiming ZHENG Li ZHOU Yan |
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| Affiliation: | 1. Meishan Boya Advanced Materials Co., Ltd., Meishan 620000, China;2. Southwest Petroleum University-Nancong Campus, Nancong 637000, China |
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| Abstract: | 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 Ce3+ ions and the relationship between Ce4+ 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. |
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| Keywords: | LYSO:Ce scintillation crystal crystal structure crystal growth scintillation mechanism oxygen vacancy |
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