| 大尺寸PWO:(Mo,Y)晶体发光均匀性的研究 |
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| 引用本文： | 谢建军,袁晖,廖晶莹,杨培志,沈炳孚,殷之文. 大尺寸PWO:(Mo,Y)晶体发光均匀性的研究[J]. 人工晶体学报, 2005, 34(3): 417-420 |
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| 作者姓名： | 谢建军 袁晖 廖晶莹 杨培志 沈炳孚 殷之文 |
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| 作者单位： | 中国科学院上海硅酸盐研究所,上海,200050 |
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| 基金项目： | 中国科学院上海硅酸盐研究所创新项目 |
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| 摘 要： | 报道了用改进的Bridgman法生长的大尺寸PbWO4:(Mo,Y)晶体发光均匀性的表征研究.通过对大尺寸的PbWO4:(Mo,Y)晶体不同部位的透射光谱、X射线激发发射光谱、光产额和抗辐照损伤能力等光学和闪烁性能的测试,结果表明在实验所涉及的掺杂浓度范围,Mo、Y双掺杂能显著改善PbWO4晶体的发光均匀性,增强其抗辐照损伤能力.
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| 关 键 词： | PbWO4:(Mo,Y)晶体 下降法 发光均匀性, |
| 文章编号： | 1000-985X(2005)03-0417-04 |
Study on the Luminescence Uniformity of Large Size PbWO4: ( Mo, Y) Crystal |
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| XIE Jian-jun,YUAN Hui,LIAO Jing-Ying,YANG Pei-zhi,SHEN Bing-fu,YIN Zhi-wen. Study on the Luminescence Uniformity of Large Size PbWO4: ( Mo, Y) Crystal[J]. Journal of Synthetic Crystals, 2005, 34(3): 417-420 |
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| Authors: | XIE Jian-jun YUAN Hui LIAO Jing-Ying YANG Pei-zhi SHEN Bing-fu YIN Zhi-wen |
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| Abstract: | The luminescence uniformity of large-size PbWO_4:(Mo,Y) and pure PbWO_4 crystals grown by modified Bridgman method was investigated through characterization on the optical transmittance, X-ray excited luminescence, light yield and irradiation damage at different distance from seed end face of large crystals. From the measuring results of the sequential distance from seed end of large crystal samples it can be concluded that large-size modified Bridgman grown PbWO_4:(Mo,Y) crystal has an excellent luminescence uniformity and radiation hardness. |
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| Keywords: | PbWO_4:(Mo Y) crystal Bridgman method luminescence uniformity |
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