| Yb∶YAG晶体的红外闪烁特性 |
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| 引用本文： | 杨培志S中国科学院上海硅酸盐研究所,邓佩珍,Belogurov S. Yb∶YAG晶体的红外闪烁特性[J]. 光学学报, 2005, 25(3): 429-430 |
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| 作者姓名： | 杨培志S中国科学院上海硅酸盐研究所 邓佩珍 Belogurov S |
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| 作者单位： | 中国科学院上海光学精密机械研究所，INFN，Sez. di Padova，Via Marzolo 8，35131 Padova，Italy 上海200050昆明物理研究所，昆明650223，上海2018004 |
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| 摘 要： | 用脉冲电子束激发测量了不同Yb3+掺杂浓度的Yb∶YAG晶体的红外(IR)闪烁发光性能。Yb∶YAG晶体的IR闪烁发光具有高的光产额和长的衰减时间,但存在浓度猝灭效应和温度依赖关系。Yb∶YAG晶体的IR闪烁性能还与晶体品质有关,相同掺杂浓度的Yb∶YAG晶体,品质优异的会获得更高的光产额。这一初步的研究成果表明,部分掺Yb3+晶体有可能用于医学成像装置。
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| 关 键 词： | 光电材料 Yb∶YAG晶体 IR闪烁性能 光产额 浓度猝灭 |
| 收稿时间： | 2004-06-18 |
Infrared Scintillation Properties of Yb∶YAG Crystal |
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| Yang Peizhi , Deng Peizhen Belogurov S. Infrared Scintillation Properties of Yb∶YAG Crystal[J]. Acta Optica Sinica, 2005, 25(3): 429-430 |
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| Authors: | Yang Peizhi Deng Peizhen Belogurov S |
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| Affiliation: | Yang Peizhi 1,2 Deng Peizhen3 Belogurov S4 1 Shanghai Institute of Ceramics,The Chinese Academy of Sciences,Shanghai 200050 2 Kunming Institute of Physics,Kunming 650233 3 Shanghai Institute of Optics and Fine Mechanics,The Chinese Academy of Sciences,Shanghai 201800 4 INFN,Sez. di Padova,Via Marzolo 8,35131 Padova,Italy |
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| Abstract: | Infrared (IR) scintillation properties of Yb∶YAG crystals with different Yb3+ doping level were measured by using pulsed electron beam. At room temperature the light yield of Yb∶YAG crystal is high and decay time is long. The dependence of light yield and decay time on Yb3+ doped concentration and temperature were demonstrated, and concentration quenthing was observed. The scintillation properties of Yb∶YAG were still affected by crystal quality. These measurement results suggest that some Yb3+-doped crystals should be possible for application in medical imaging. |
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| Keywords: | opto-electronic materials Yb∶YAG infrared scintillation properties light yield concentration quenching |
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