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Bridgman growth and scintillation properties of calcium tungstate single crystal
Wang, Zhenhai1; Jiang, Linwen1,2; Chen, Yaping1; Chen, Peng1; Chen, Hongbing1,2; Mao, Rihua3
2017
发表期刊Journal of Crystal Growth
ISSN00220248
卷号480页码:96-101
摘要CaWO4single crystal with large size was grown by Bridgman method. The results of transmission spectra show that the transmittance of CaWO4crystal reaches 79–85% in 320–800 nm wavelength range. The refraction index is near 1.80 in visible and infrared region. CaWO4crystal shows a broad emission band centered at 424 nm under X-ray excitation and centered at 416 nm under ultraviolet (λex= 280 nm) excitation. The decay kinetics of CaWO4single crystal shows double-exponential decay with fast decay constant τ1= 5.4 μs and slow decay constant τ2= 177.1 μs. The energy resolution of CaWO4crystal was found to be 31.6% in the net peak of 545.9 channel. Meanwhile, the absolute output is at the lever of 19,000 ± 1000 photons/MeV. The results indicate the scintillator of CaWO4single crystal has great potential in the applications of high-energy physics and nuclear physics due to its high light output and great energy resolution. © 2017 Elsevier B.V.
DOI10.1016/j.jcrysgro.2017.09.030
EI入藏号20174304297399
EI主题词Tungsten compounds
EI分类号804.2 Inorganic Compounds - 932.1 High Energy Physics - 933.1 Crystalline Solids - 933.1.2 Crystal Growth - 944.7 Radiation Measuring Instruments
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25459
专题中国科学院上海硅酸盐研究所
作者单位1.State Key Base of Functional Materials and its Preparation Science, Ningbo University, Ningbo; 315211, China;
2.Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo University, Ningbo; 315211, China;
3.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 201800, China
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Wang, Zhenhai,Jiang, Linwen,Chen, Yaping,et al. Bridgman growth and scintillation properties of calcium tungstate single crystal[J]. Journal of Crystal Growth,2017,480:96-101.
APA Wang, Zhenhai,Jiang, Linwen,Chen, Yaping,Chen, Peng,Chen, Hongbing,&Mao, Rihua.(2017).Bridgman growth and scintillation properties of calcium tungstate single crystal.Journal of Crystal Growth,480,96-101.
MLA Wang, Zhenhai,et al."Bridgman growth and scintillation properties of calcium tungstate single crystal".Journal of Crystal Growth 480(2017):96-101.
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