Synthesis and luminescence properties of Tb doped LaBGeO5 and GdBGeO5 glass scintillators

Borogermanate glasses show promise as scintillators due to their ability to incorporate high levels of heavy metal oxides without excessive loss of luminescent output intensity. Heavy metal oxide scintillating glasses of 50GeO2-25B2O3-(25-x)La2O3/Gd2O3-xTb2O3 (x = 1,2,3,4) with the same stoichiometr...

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Published in:Journal of alloys and compounds 2016-11, Vol.686, p.9-14
Main Authors: Struebing, Christian, Lee, Gyuhyon, Wagner, Brent, Kang, Zhitao
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Language:English
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Ceramics
Optical materials
Optical properties
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description Borogermanate glasses show promise as scintillators due to their ability to incorporate high levels of heavy metal oxides without excessive loss of luminescent output intensity. Heavy metal oxide scintillating glasses of 50GeO2-25B2O3-(25-x)La2O3/Gd2O3-xTb2O3 (x = 1,2,3,4) with the same stoichiometric composition of crystalline Tb doped LaBGeO5/GdBGeO5 were synthesized via the melt-quench method. Three times of higher light output under gamma ray excitation was observed from Tb doped GdBGeO5 based glass compared to LaBGeO5 glass due to efficient energy transfer between Gd-Tb pairs and higher luminescence efficiency in the GdBGeO5 glasses. The potential to form LaBGeO5/GdBGeO5 glass ceramic scintillators was also discussed and preliminarily investigated. •Tb doped stoichiometric composition LaBGeO5/GdBGeO5 glasses were synthesized.•Gamma ray and X-ray excited scintillation properties were investigated.•GdBGeO5:Tb scintillator shows threefold higher light yield than LaBGeO5:Tb.•The potential to form LaBGeO5/GdBGeO5 glass ceramic scintillators was investigated.
doi_str_mv 10.1016/j.jallcom.2016.05.300
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subjects Ceramics
Optical materials
Optical properties
title Synthesis and luminescence properties of Tb doped LaBGeO5 and GdBGeO5 glass scintillators
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