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Vol. 34, No. 8(3), S&M3042

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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials
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Sensors and Materials, Volume 32, Number 4(2) (2020)
Copyright(C) MYU K.K.
pp. 1381-1387
S&M2184 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2020.2750
Published: April 20, 2020

Radiation-induced Luminescence Properties of SrBr2 Transparent Ceramics Doped with Different Eu Concentrations [PDF]

Hiromi Kimura, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida

(Received December 21, 2019; Accepted March 10, 2020)

Keywords: transparent ceramics, scintillation, photoluminescence, SrBr2

We successfully developed Eu-doped SrBr2 transparent ceramics with different Eu concentrations by spark plasma sintering and evaluated their optical and scintillation properties. As optical properties, the diffuse transmittance of the 0.01% Eu-doped sample was ~60% in the visible range. All the samples showed two absorption bands at around 250 and 350 nm, the origin of which was the 4f-5d (eg, t2g) transitions of Eu2+. Regarding scintillation spectra, the spectral shapes of all the Eu-doped SrBr2 transparent ceramics were similar to that of single crystals. In pulse height spectra, the photoabsorption peak of the 0.01 and 0.1% Eu-doped samples was confirmed, and the estimated light yields were 6600 and 13300 photons/MeV, respectively. As afterglow properties, the afterglow levels of the 0.01 and 0.1% Eu-doped samples were comparable to that of a conventional Tl-doped CsI scintillator.

Corresponding author: Hiromi Kimura


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Cite this article
Hiromi Kimura, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida, Radiation-induced Luminescence Properties of SrBr2 Transparent Ceramics Doped with Different Eu Concentrations, Sens. Mater., Vol. 32, No. 4, 2020, p. 1381-1387.



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