| Ce~(3+)掺杂Gd_2O_3基闪烁玻璃的研究 |
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| 引用本文： | 来飞,张约品,夏海平,王金浩,姜淳.Ce~(3+)掺杂Gd_2O_3基闪烁玻璃的研究[J].光学技术,2009,35(5). |
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| 作者姓名： | 来飞 张约品 夏海平 王金浩 姜淳 |
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| 作者单位： | 1. 宁波大学,光电子功能材料实验室,浙江,宁波,315211
2. 上海交通大学,电子信息学院,上海,200030 |
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| 基金项目： | 浙江省自然科学基金(Y106394);;浙江省新苗人才项目(2008R40G2070016);;浙江省科技厅资助项目(2008C21069) |
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| 摘 要： | 实验用高温熔融法制备了Ce3+掺杂Gd2O3基闪烁玻璃样品,Gd2O3含量高达40mol%,测试了不同Ce3+掺杂浓度与Gd2O3基含量玻璃样品的密度、透过、发射、激发光谱及部分闪烁性能。研究了不同Ce3+掺杂浓度与Gd2O3基含量对玻璃样品密度及光谱性能的影响规律。结果表明:Gd2O3含量的增加不仅提高了玻璃的密度,有利于提高玻璃的辐射性能,还增大了玻璃的光碱度,增大Stokes位移,有利于提高闪烁光的发光效率;Ce3+浓度的提高增大了Ce3+间碰撞的几率,产生能量损失,表现出浓度淬灭效应。在Gd2O3基闪烁玻璃中,随Gd2O3含量增加激发峰的红移较小,高Gd2O3含量的氧化物玻璃中存在Gd3+→Ce3+能量转移机制,Gd3+离子可有效地向Ce3+离子传递能量,敏化Ce3+离子的发光。玻璃样品的衰减时间在17-37ns之间。Ce3+掺杂Gd2O3基闪烁玻璃有望在高能物理等领域中获得应用。
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| 关 键 词： | 光学材料 铈掺杂 Gd2O3基氧化物玻璃 发光性能 玻璃闪烁体 |
The study of Ce3+-doped Gd2O3 based scintillating glasses |
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| LAI Fei,ZHANG Yue-pin,XIA Hai-ping,WANG Jin-hao,JIANG Chun.The study of Ce3+-doped Gd2O3 based scintillating glasses[J].Optical Technique,2009,35(5). |
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| Authors: | LAI Fei ZHANG Yue-pin XIA Hai-ping WANG Jin-hao JIANG Chun |
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| Institution: | 1.Laboratory of Photo-Electronic Material;Ningbo University;Ningbo 315211;China;2.Department of Electronic Science and Technology;Shanghai Jiao Tong University;Shanghai 200030;China |
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| Abstract: | Ce~(3+) doped high Gd2O3 concentrations oxide glasses are prepared by high-temperature melting method and Gd2O3 content up to 40mol%,and their density,transmission,emission,excitation spectra with different concentration of Ce3+ and Gd2O3 and scintillating properties are measured,and the influence of concentration of important constituents(Gd2O3 and Ce) on the density and the luminescence characteristics are analyzed as well.The results show that the density and the optical basicity of glass samples are inc... |
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| Keywords: | optical materials Ce(3+)-doped Gd2O3 based oxide glasses luminescent properties glass scintillator |
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