Characteristics of large-sized Ce:YAG scintillation crystal grown by temperature gradient technique

Guangjun Zhao; Xionghui Zeng; Jun Xu; Yuequan Xu; Yongzong Zhou

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Characteristics of large-sized Ce:YAG scintillation crystal grown by temperature gradient technique

机译：温度梯度技术生长的大型Ce：YAG闪烁晶体的特性

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For the first time, the highly transparent yellow Ce:YAG scintillation crystal with a diameter of 3 in has been grown by the temperature gradient technique (TGT). The segregation coefficient of Ce ions in 0.8 at% doped TGT-Ce:YAG crystal determined by the ICP-AES method was 0.082, and the Ce distribution along the [111] growth axis was also investigated. The main macroscopic defects such as striations, side cores, bubbles, inclusions and stress birefringence were observed in as-grown Ce:YAG crystal by means of cross-polarized light microscope observation. The results show that the main defects such as bubbles, inclusions and stress birefringence mainly existed near the crystal peripheral edges.

机译：首次通过温度梯度技术（TGT）生长了直径3 in的高度透明的黄色Ce：YAG闪烁晶体。通过ICP-AES方法测定的0.8原子％掺杂的TGT-Ce：YAG晶体中Ce离子的偏析系数为0.082，并且还研究了沿[111]生长轴的Ce分布。通过交叉偏振光显微镜观察，在生长的Ce：YAG晶体中观察到主要的宏观缺陷，例如条纹，侧芯，气泡，夹杂物和应力双折射。结果表明，气泡，夹杂物和应力双折射等主要缺陷主要存在于晶体外围边缘附近。

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来源
《Journal of Crystal Growth》 |2003年第4期|p.290-296|共7页
作者
Guangjun Zhao; Xionghui Zeng; Jun Xu; Yuequan Xu; Yongzong Zhou;
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作者单位

Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences CAS, Tacheny Road, 295 P.O.B. 800-216, Shanghai 201800, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类晶体学;
关键词
A1. defects; A2. temperature gradient technique growth; B3. scintillators;

机译：A1。缺陷A2。温度梯度技术的发展;B3。闪烁体;

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Characteristics of large-sized Ce:YAG scintillation crystal grown by temperature gradient technique

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