| 大尺寸Y:PbWO4晶体的坩埚下降法生长与光学均匀性研究 |
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| 引用本文： | 宫波,沈定中,任国浩,张海斌,殷之文.大尺寸Y:PbWO4晶体的坩埚下降法生长与光学均匀性研究[J].无机材料学报,2002,17(2):215. |
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| 作者姓名： | 宫波 沈定中 任国浩 张海斌 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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| 摘 要： | 报道了大尺寸Ｙ：ＰｂＷＯ４晶体的坩埚下降法生长工艺，讨论了影响晶体生长的主要 因素．探讨了消除晶体开裂、抑制晶体组分过冷的工艺措施，成功地生长出无宏观缺陷的大尺 寸Ｙ：ＰｂＷＯ４晶体，尺寸达５２ｍｉｎ×５２ｍｍ×２５０ｍｍ．同时，对实验样品沿晶体生长方向不同部 位的横向透过率及发射光谱进行了测试，结果表明，坩埚下降法生长的大尺寸Ｙ：ＰｂＷＯ４晶体 具有较好的光学均匀性．
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| 关 键 词： | 大尺寸 Y:PbWO4晶体 生长 均匀性 |
| 收稿时间： | 2001-04-04 |
| 修稿时间： | 2001-05-16 |
Growth and Optical Uniformity of Large Size Y:PbWO4 Crystal Grown by the Bridgman Method |
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| GONG BO,SHEN Ding-Zhong,REN Guo-Hao,ZHANG Hai-Bin,YIN Zhi-Wen.Growth and Optical Uniformity of Large Size Y:PbWO4 Crystal Grown by the Bridgman Method[J].Journal of Inorganic Materials,2002,17(2):215. |
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| Authors: | GONG BO SHEN Ding-Zhong REN Guo-Hao ZHANG Hai-Bin YIN Zhi-Wen |
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| Affiliation: | Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China |
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| Abstract: | The crystal growth technique of large size Y:PbWO4 crystal by the Bridgman method was discussed. The technical methods to eliminate cracks of the crystal and constitutional super- cooling were presented. Y:PbWO4 crystal with the size of 55mm×55mm×250mm was successfully made. The transmittance spectra and radioluminescence spectra at different positions along crys- tal growth orientation were measured and studied. The results show that the large size Y:PbWO4 crystal has good optical uniformity. |
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| Keywords: | large size Y:PbWO4 crystal growth uniformity |
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