title: Synthesis and luminescence properties of Tb doped LaBGeO5and GdBGeO5glass scintillators.
abstract: 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/GdBGeO5were synthesized via the melt-quench method. Three times of higher light output under gamma ray excitation was observed from Tb doped GdBGeO5based glass compared to LaBGeO5glass due to efficient energy transfer between Gd-Tb pairs and higher luminescence efficiency in the GdBGeO5glasses. The potential to form LaBGeO5/GdBGeO5glass ceramic scintillators was also discussed and preliminarily investigated.
authors: Georgia Tech Research Institute, Georgia Institute of Technology, Atlanta GA 30332; School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta GA 30332.
authors: Christian
authors: C
authors: Struebing
authors: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta GA 30332.
authors: Gyuhyon
authors: G
authors: Lee
authors: Georgia Tech Research Institute, Georgia Institute of Technology, Atlanta GA 30332.
authors: Brent
authors: B
authors: Wagner
authors: Georgia Tech Research Institute, Georgia Institute of Technology, Atlanta GA 30332; School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta GA 30332.
authors: Zhitao
authors: Z
authors: Kang
keywords: ceramics; optical materials; optical properties