Luminescence and scintillation properties of Ce-doped calcium hafnate perovskite single crystals

被引：14

作者：

Fukushima, Hiroyuki ^{[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：

JOURNAL OF LUMINESCENCE | 2022年 / 250卷

基金：

日本科学技术振兴机构; 日本学术振兴会;

关键词：

Scintillation; Photoluminescence; CaHfO3; PHOTOLUMINESCENCE; EFFICIENCY; DETECTOR;

D O I：

10.1016/j.jlumin.2022.119088

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Hafnium-based materials are attractive for a scintillator owing to their high density and effective atomic number. In this study, single crystals of Ce-doped calcium hafnate perovskite (Ce:CaHfO3) were synthesized from a Ca-rich composition, and photoluminescence (PL) and scintillation properties were investigated. The X-ray diffraction patterns revealed that the synthesized single crystals were a single phase of CaHfO3. The Ce:CaHfO3 exhibited blue luminescence at 430 nm and fast decay due to the 5d-4f transition of Ce3+ in both PL and scintillation. From the measurement of pulse height spectra under Cs-137 irradiation, the highest light yield of 7800 photons/MeV was observed in the 3% Ce:CaHfO3.

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页数：5

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