大尺寸PWO:(Sb,Y)晶体光谱特性的表征研究

无机材料学报

大尺寸PWO:(Sb,Y)晶体光谱特性的表征研究

谢建军¹; 袁晖¹; 杨培志¹; 沈炳孚¹; 曹顿华²; 廖晶莹¹; 顾牡²; 殷之文¹

1. 中国科学院上海硅酸盐研究所, 上海 200050; 2. 同济大学物理系, 上海 200092

收稿日期:2004-09-17 修回日期:2004-10-15 出版日期:2005-09-20 网络出版日期:2005-09-20

Characterization on the Optical Properties of Large PbWO₄:(Sb,Y) Crystal

XIE Jian-Jun¹; YUAN Hui¹; YANG Pei-Zhi¹; SHEN Bing-Fu¹; CAO Dun-Hua²; LIAO Jing-Ying¹; GU Mu²; YIN Zhi-Wen¹

1.Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050, China; 2.Department of Physics; Tongji University; Shanghai 200092, China

Received:2004-09-17 Revised:2004-10-15 Published:2005-09-20 Online:2005-09-20

摘要/Abstract

摘要： 报道了用改进的Bridgmam法生长的大尺寸PbWO₄:(Sb,Y)晶体的光谱特性的表征研究.通过对依次切自大尺寸PbWO₄:(Sb,Y)毛坯晶体的籽晶端、中间部位和顶端三块晶体(～23mm×23mm×20mm)的透射光谱、X射线激发发射光谱、紫外激发与发射光谱、发光衰减寿命、光产额和辐照损伤等方面的光谱性能测试,结果表明,Sb、Y双掺杂能显著改善PbWO4晶体的光谱性能,使晶体在短波330-420nm范围的透过率明显提高,光产额增加,抗辐照能力增强.但从籽晶端到顶端的性能存在一定的差异,说明大尺寸的PbWO₄:(Sb,Y)晶体的均匀性还有待提高.

Abstract: This paper presents the characterization and investigation of the optical properties on doubly-doped large PbWO₄:(Sb,Y) crystals grown by the modified Bridgman method. Based on the comparison
measurement of the optical transmission spectra, X-ray excited luminescence, photoluminescence, decay time, light yield and irradiation damage for 23mm×23mm×20mm crystal samples
cut from seed end, middle part and top end of a large PbWO₄:(Sb,Y) crystal ingot, the results show that co-doping Sb and Y can significantly improve the light yield, radiation hardness and other spectroscopic properties of PbWO₄ crystal. However, the uniformity of large PbWO₄:(Sb,Y) crystal needs to be further improved based on the comparison of measurement results.

中图分类号:

O734

谢建军,袁晖,杨培志,沈炳孚,曹顿华,廖晶莹,顾牡,殷之文. 大尺寸PWO:(Sb,Y)晶体光谱特性的表征研究[J]. 无机材料学报.

XIE Jian-Jun,YUAN Hui,YANG Pei-Zhi,SHEN Bing-Fu,CAO Dun-Hua,LIAO Jing-Ying,GU Mu,YIN Zhi-Wen. Characterization on the Optical Properties of Large PbWO₄:(Sb,Y) Crystal[J]. Journal of Inorganic Materials.

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