Optical and scintillation properties of Pr-doped Y2Si2O7 single crystal

被引:14
作者
Kantuptim, Prom [1 ]
Akatsuka, Masaki [1 ]
Kawaguchi, Noriaki [1 ]
Yanagida, Takayuki [1 ]
机构
[1] Nara Inst Sci & Technol, Grad Sch Sci & Technol, Div Mat Sci, 8916-5 Takayama, Ikoma, Nara 6300192, Japan
关键词
ENERGY-RESOLUTION; CE; LUMINESCENCE;
D O I
10.7567/1347-4065/ab48a2
中图分类号
O59 [应用物理学];
学科分类号
摘要
Pr-doped yttrium pyrosilicates Y2Si2O7 (YPS) single crystals were synthesized by the floating zone method. Five samples with different Pr concentration from 0.1% to 2.0% were prepared to study optical and scintillation properties. When we measured photoluminescence (PL), the emission due to the 5d-4f transition of Pr3+ appeared in all the samples at the UV wavelength, and PL decay times were around 4-10 ns. In scintillation properties, all of the samples had the same scintillation emission spectral shape with different intensities, and samples with higher Pr concentration trended to have smaller scintillation decay time than those with lower Pr concentration. Under the Cs-137 gamma-rays irradiation, the highest scintillation light yield among the present samples was 6600 ph MeV-1 in Pr 1.0% one. In addition, linearity and energy resolution as a function of.-ray energy were observed in all the samples. (C) 2019 The Japan Society of Applied Physics
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页数:5
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