Tm-concentration dependence on photoluminescence and scintillation properties of Tm-doped Gd2SrAl2O7 single crystals

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-03-04 DOI:10.1016/j.radphyschem.2025.112672

Keiichiro Miyazaki, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, Takayuki Yanagida

引用次数: 0

Abstract

Gd₂SrAl₂O₇ single crystals doped with various Tm-concentration (0, 0.1, 0.3, 1, and 3%) were grown by the optical floating zone method. Tm-concentration dependence on the photoluminescence (PL) and scintillation properties were investigated in Tm-doped Gd₂SrAl₂O₇ single crystals. In PL and scintillation, all the samples showed several emission peaks due to 4f-4f transitions of Tm³⁺. The highest quantum yield among all the samples was 46.0% in the 0.3% Tm-doped sample. From pulse height spectra under ¹³⁷Cs γ-ray irradiation, the highest light yield among all the samples was estimated to be 510 photons/MeV in the 1% Tm-doped sample. According to afterglow curves, the afterglow was better than that of CsI:Tl.

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.