节点文献
大尺寸Y:PbWO4晶体的坩埚下降法生长与光学均匀性研究
Growth and Optical Uniformity of Large Size Y:PbWO4 Crystal Grown by the Bridgman Method
【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．
【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.
【基金】 国家自然科学基金（59732040）
- 【文献出处】 无机材料学报 ,Journal of Inorganic Materials , 编辑部邮箱 ,2002年02期
- 【分类号】O782
- 【被引频次】1
- 【下载频次】117