Scintillation and thermally-stimulated luminescence properties of Pr-doped SrAl2O4 single crystals

被引：22

作者：

Nakauchi, Daisuke ^{[1
]}

Okada, Go ^{[1
]}

Koshimizu, Masanori ^{[2
]}

Yanagida, Takayuki ^{[1
]}

机构：

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

[2] Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Aoba Ku, 6-6-07 Aoba, Sendai, Ibaraki 9808579, Japan

来源：

RADIATION MEASUREMENTS | 2017年 / 106卷

关键词：

Scintillation; Photoluminescence; Thermally-stimulated luminescence; Single crystal; Floating zone method; Strontium aluminate; PHOSPHOR; RADIOLUMINESCENCE; EMISSION; EU; LN;

D O I：

10.1016/j.radmeas.2017.03.021

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

SrAl2O4 single crystals with different concentrations of Pr (0.5-5%) were grown by the floating zone method. Both the photoluminescence and scintillation spectra consist of a broad emission band around 300 nm and several sharp emissions around 500-1100 ntn due to Pr3+. The decay time constants of these emissions are 20-50 ns and 70-200 is, respectively, which are typical values of Pr3+. From the pulse height spectrum under Cs-137 gamma-ray irradiation, it was found that 3% Pr-doped SrAl2O4 shows the highest light yield (similar to 480 ph/MeV) among the present samples. (C) 2017 Elsevier Ltd. All rights reserved.

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页码：170 / 174

页数：5

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