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A kind of bilayer structure ceramic scintillators designed for phoswich detectors
Hu, Zewang1,2; Chen, Xiaopu1,2; Ding, Dongzhou3; Cao, Maoqing1,4; Shi, Yun1; Kou, Huamin1; Chen, Haohong1; Xie, Tengfei1; Wu, Lexiang1; Pan, Yubai5; Li, Jiang1
2017
Source PublicationJournal of the American Ceramic Society
ISSN00027820
Volume100Issue:12Pages:5593-5600
AbstractThe phoswich detectors can determine the location of nuclear interactions with the matrix and it is an effective approach to improve the spatial resolution at the edge of the field of view in positron emission tomography. In this study, we proposed a kind of bilayer structure garnet ceramic scintillators for phoswich detectors. Bilayer Pr:LuAG/Ce:LuAG ceramic scintillations with different thickness ratio were fabricated through solid-state reaction and vacuum sintering without further cutting or stacking process. The phase, microstructure, fluorescence, and scintillation properties were characterized and studied. The decay time of the Pr:LuAG layer was about 21.8 ns while that of the Ce:LuAG layer was 58.6 ns. Different 5d-4f emission bands of 290-450 and 475-700 nm were observed in the Pr:LuAG layer and Ce:LuAG layer, respectively. These two features meet the basic requirements of phoswich detectors. Separation of interactions with γ-ray in different layers has achieved in the pulse height spectra. These properties reveal that this kind of multilayer structure garnet ceramic scintillators have potential application value in the field of phoswich detectors. © 2017 The American Ceramic Society
DOI10.1111/jace.15080
EI Accession Number20173104011519
EI KeywordsPositron emission tomography
EI Classification Number741.1 Light/Optics - 802.2 Chemical Reactions - 812.1 Ceramics - 931.3 Atomic and Molecular Physics - 944.7 Radiation Measuring Instruments
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25529
Collection中国科学院上海硅酸盐研究所
Affiliation1.Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China;
2.University of Chinese Academy of Sciences, Beijing, China;
3.R&D center of Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China;
4.Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, China;
5.Department of Physics, Shanghai Normal University, Shanghai, China
Recommended Citation
GB/T 7714
Hu, Zewang,Chen, Xiaopu,Ding, Dongzhou,et al. A kind of bilayer structure ceramic scintillators designed for phoswich detectors[J]. Journal of the American Ceramic Society,2017,100(12):5593-5600.
APA Hu, Zewang.,Chen, Xiaopu.,Ding, Dongzhou.,Cao, Maoqing.,Shi, Yun.,...&Li, Jiang.(2017).A kind of bilayer structure ceramic scintillators designed for phoswich detectors.Journal of the American Ceramic Society,100(12),5593-5600.
MLA Hu, Zewang,et al."A kind of bilayer structure ceramic scintillators designed for phoswich detectors".Journal of the American Ceramic Society 100.12(2017):5593-5600.
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