X-ray induced luminescence properties of Ce-doped Ca3Sc2Si3O12 single crystal

被引：7

作者：

Kato, Takumi ^{[1
]}

Usui, Yuki ^{[1
]}

Okada, Go ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Yanagida, Takayuki ^{[1
]}

机构：

[1] Nara Inst Sci & Technol NAIST, Grad Sch Mat Sci, 8916-5 Takayama Cho, Ikoma, Nara 6300192, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2020年 / 954卷

基金：

日本学术振兴会; 日本科学技术振兴机构;

关键词：

Ca3Sc2Si3O12; Ce; Garnet; Scintillator; GREEN PHOSPHORS; PHOTOLUMINESCENCE; TB3+;

D O I：

10.1016/j.nima.2018.09.136

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Scintillation and photoluminescence (PL) properties of undoped and Ce-doped Ca3Sc2Si3O12 (CSSG) single crystals were investigated. The crystal samples were synthesized by the floating zone (FZ) method. The Ce-doped CSSG samples showed PL spectrum with a broad feature peaking around 510 nm. From decay constants of the corresponding PL emission, it was confirmed that the origin was due to the 5d-4f transitions of Ce3+ ions. In addition, the Ce-doped CSSG samples showed scintillation induced by X-rays with a spectrum, peaking around 510 nm as similarly seen in PL. All the samples exhibited a photoabsorption peak in the pulse height spectra measured under Am-241 gamma-ray irradiation. The absolute scintillation light yield (LY) was the highest for the 0.1% Ce-doped CSSG sample, and the value was 3,300 ph/MeV.

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页数：5

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