TY - JOUR
T1 - Luminescence and scintillation properties of Ce3+-doped SiO2–Al2O3–BaF2–Gd2O3 glasses
AU - Chewpraditkul, Weerapong
AU - Pattanaboonmee, Nakarin
AU - Yawai, Nattasuda
AU - Chewpraditkul, Warut
AU - Lertloypanyachai, Prapon
AU - Sreebunpeng, Krittiya
AU - Yoshino, Masao
AU - Liu, Liwan
AU - Chen, Danping
N1 - Funding Information:
The authors acknowledge the financial support provided by King Mongkut's University of Technology Thonburi through the “KMUTT 55th Anniversary Commemorative Fund”, the National Research Council of Thailand (NRCT no. 1948 ) and the National Natural Science Foundation of China (NSFC no. 51872308 ). M. Nikl is gratefully acknowledged for valuable discussion.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/12
Y1 - 2019/12
N2 - Ce3+-doped glasses with composition of (65-x)SiO2 − 20Al2O3 –15BaF2 -xGd2O3 (x = 5, 10, 15, 20 and 25) were synthesized under CO atmosphere by melt-quenching method. The photoluminescence (PL) emission due to Ce3+: 5d1 → 4f transition was red-shifted with increasing Gd2O3 content. The acceleration of PL decay was observed with increasing Gd2O3 content. The scintillation efficiency of about 100% of the Bi4Ge3O12 scintillator was obtained for a 10%Gd2O3 containing glass while a high light yield (LY) of 2050 photons/MeV and energy resolution of 15.8% at 662 keV γ rays was obtained for a 15%Gd2O3 containing glass. The integrating-time dependence of LY value and LY ratio (α/γ ratio) under excitation with α- and γ-rays were also measured.
AB - Ce3+-doped glasses with composition of (65-x)SiO2 − 20Al2O3 –15BaF2 -xGd2O3 (x = 5, 10, 15, 20 and 25) were synthesized under CO atmosphere by melt-quenching method. The photoluminescence (PL) emission due to Ce3+: 5d1 → 4f transition was red-shifted with increasing Gd2O3 content. The acceleration of PL decay was observed with increasing Gd2O3 content. The scintillation efficiency of about 100% of the Bi4Ge3O12 scintillator was obtained for a 10%Gd2O3 containing glass while a high light yield (LY) of 2050 photons/MeV and energy resolution of 15.8% at 662 keV γ rays was obtained for a 15%Gd2O3 containing glass. The integrating-time dependence of LY value and LY ratio (α/γ ratio) under excitation with α- and γ-rays were also measured.
KW - Ce
KW - Gd
KW - Light yield
KW - Luminescence
KW - Scintillating glass
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U2 - 10.1016/j.optmat.2019.109468
DO - 10.1016/j.optmat.2019.109468
M3 - Article
AN - SCOPUS:85074497981
SN - 0925-3467
VL - 98
JO - Optical Materials
JF - Optical Materials
M1 - 109468
ER -