Development of Er-doped CaHfO3 single-crystal-scintillators emitting near-infrared photons

被引：0
|
作者：
Endo, Yusuke [1 ]
Ichiba, Kensei [1 ]
Nakauchi, Daisuke [1 ]
Kato, Takumi [1 ]
Kawaguchi, Noriaki [1 ]
Yanagida, Takayuki [1 ]
机构：
[1] Nara Inst Sci & Technol NAIST, Div Mat Sci, Ikoma, Nara 6300192, Japan
来源：
SOLID STATE SCIENCES | 2025年 / 160卷
关键词：
Photoluminescence; Scintillation detectors; Dose-rate-response; In vivo imaging; High-dose field monitoring; EFFECTIVE IONIC-RADII; PHOTOLUMINESCENCE; LUMINESCENCE; EXCITATION; SR;
D O I：
10.1016/j.solidstatesciences.2024.107783
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Photoluminescence and scintillation properties of 0.1%, 0.5%, 1.0%, and 5.0% Er:CaHfO3 single crystals were synthesized and evaluated. The photoluminescence and scintillation spectra showed several emission peaks originating from the 4f-4f transitions of Er3+ in visible and near-infrared regions. Dose-rate-response of 0.5%, 1.0%, and 5.0% Er:CaHfO3 samples showed an excellent linear relationship between dose rate and output signal intensity across the range of 0.0025-51 Gy/h. Based on the results, the 1.0% Er:CaHfO3 sample exhibited the best performance among all the Er:CaHfO3 samples.
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页数：7
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