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

被引：10

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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