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 KantuptimThis work is licensed under a Creative Commons Attribution 4.0 International License. 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. |