Scintillation properties of SrCl2:Eu transparent ceramics fabricated by spark plasma sintering method

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2024-12-08 DOI:10.1016/j.jlumin.2024.121021

Takeshi Ubukata, Shota Otake, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, Takayuki Yanagida

引用次数: 0

Abstract

In this report, SrCl₂:Eu transparent ceramics were fabricated by the spark plasma sintering method, and their optical and scintillation properties were investigated. All the samples exhibited the photoluminescence (PL) and scintillation emission peaks at 410 nm derived from the 5d–4f transitions of Eu²⁺. The PL quantum yields of the 0.1, 0.25, 0.5, and 1.0 % SrCl₂:Eu samples under 340 nm excitation were 50, 78, 88, and 81 %, respectively. The scintillation decay curves were approximated by a single exponential decay function with decay time constants of 920–1010 ns. The scintillation light yield under ¹³⁷Cs γ-ray irradiation was the highest for the 0.5 % Eu sample with 24,000 ph/MeV.

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.