Comparative studies on scintillation properties of Eu-doped CaAl2O4, SrAl2O4, and BaAl2O4 crystals

被引：5
|
作者：
Nakauchi, Daisuke [1 ]
Kato, Takumi [1 ]
Kawaguchi, Noriaki [1 ]
Yanagida, Takayuki [1 ]
机构：
[1] Nara Inst Sci & Technol NAIST, Div Mat Sci, 8916-5 Takayama, Ikoma, Nara 6300192, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2023年 / 62卷 / 01期
基金：
日本学术振兴会;
关键词：
scintillator; dosimetry; radioluminescence; afterglow; crystal growth; EXCITED OPTICAL LUMINESCENCE; STRONTIUM ALUMINATE; PHOSPHOR CRYSTALS; CE; EFFICIENCY; GROWTH; DY;
D O I：
10.35848/1347-4065/ac9181
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Eu:CaAl2O4, Eu:SrAl2O4, and Eu:BaAl2O4 crystals with various dopant concentration were synthesized by the optical floating zone method, and the photoluminescence, scintillation, and afterglow properties were investigated. Under X-ray irradiation, Eu:CaAl2O4 Eu:SrAl2O4, and Eu:BaAl2O4 exhibit a broad emission band at 440, 520, and 500 nm due to 5d-4f transitions of Eu2+, respectively. The decay time constants are consistent with the typical values of 5d-4f transitions of Eu2+. Photoluminescence quantum yield and scintillation light yield were evaluated, and each property was compared to comprehensively understand the characteristics.
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页数：5
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