Crystal growth and scintillation properties of Ce doped (Gd,Y)AlO3 perovskite single crystals

Crystal growth and scintillation properties of Ce doped (Gd,Y)AlO3 perovskite single crystals

Ce1%:(GdxY1‐x)AlO3 (x=0, 0.2, 0.4, 0.6, 0.8 and 1) crystals were grown by the μ‐PD method with RF heating system. All of the grown crystals show single perovskite phase. Ce3+ 4f‐5d emission is observed within 360‐400nm wavelength. Emission peak shifts to shorter wavelength with increasing Y concentr...

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Veröffentlicht in:Physica status solidi. C 2012-12, Vol.9 (12), p.2263-2266
Hauptverfasser: Kamada, Kei, Endo, Takanori, Tsutsumi, Kousuke, Yoshikawa, Akira
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Crystals
micro-pulling method
scintillator
single crystal
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Endo, Takanori
Tsutsumi, Kousuke
Yoshikawa, Akira
description Ce1%:(GdxY1‐x)AlO3 (x=0, 0.2, 0.4, 0.6, 0.8 and 1) crystals were grown by the μ‐PD method with RF heating system. All of the grown crystals show single perovskite phase. Ce3+ 4f‐5d emission is observed within 360‐400nm wavelength. Emission peak shifts to shorter wavelength with increasing Y concentration. In order to determine light yield, the energy spectra were collected under 662 keV γ‐ray excitation (137Cs source) and detection by an PMT R6451(Hamamatsu). The light yield was calculated by comparing to LYSO standard. The light yield of Ce1%:(GdxY1‐x)AlO3samples were increased with increasing Y concentration and Ce1%:Gd0.6Y0.4AlO3sample shows the highest light yield of 14,000 photon/MeV. Scintillation decay time was around 14.4 ns (16%) with slower decay component of.139 ns (84%) (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
doi_str_mv 10.1002/pssc.201200264
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subjects Crystals
micro-pulling method
scintillator
single crystal
title Crystal growth and scintillation properties of Ce doped (Gd,Y)AlO3 perovskite single crystals
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