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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. 1357-1364
S&M2181 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2020.2726
Published: April 20, 2020

Scintillation Characteristics of Pr-doped Gd2Si2O7 Single Crystal [PDF]

Prom Kantuptim, Masaki Akatsuka, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida

(Received December 3, 2019; Accepted March 2, 2020)

Keywords: gadolinium pyrosilicate, decay time, floating zone method, Pr3+, photoluminescence

Pr-doped gadolinium pyrosilicate, which had a composition of Gd2Si2O7, was synthesized by the floating zone method with different Pr concentrations from 0.1 to 2.0 mol%. After confirming the crystal phase by X-ray diffraction (XRD) analysis, photoluminescence (PL) and scintillation properties were investigated. PL emission spectra showed a broad emission peak at 340-360 nm due to Pr3+ 5d–4f transition, and decay times were around 9¬–12 ns. In X-ray-induced scintillation spectra, we confirmed a similar spectral shape with PL, and scintillation decay times were around 18–29 ns. In the 137Cs γ-ray-irradiated pulse height measurement, the 1.0% Pr-doped sample had shown the highest scintillation light yield of 2290 ph/MeV among the present samples. In the same setup, we also used different γ-ray sources to check the energy response linearity. Finally, energy resolution as a function of γ-ray energy was investigated.

Corresponding author: Prom Kantuptim


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Cite this article
Prom Kantuptim, Masaki Akatsuka, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida, Scintillation Characteristics of Pr-doped Gd2Si2O7 Single Crystal, Sens. Mater., Vol. 32, No. 4, 2020, p. 1357-1364.



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