title: Synthesis and Luminescence Properties of Transparent Nanocrystalline GdF3:Tb Glass-Ceramic Scintillator.
abstract: Transparent glass-ceramic containing rare-earth doped halide nanocrystals exhibits enhanced luminescence performance. In this study, a glass-ceramic with Tb doped gadolinium fluoride nanocrystals embedded in an aluminosilicate glass matrix is investigated for X-ray imaging applications. The nanocrystalline glass-ceramic scintillator was prepared by a melt-quench method followed by an anneal. The GdF3:Tb nanocrystals precipitated within the oxide glass matrix during the processing and their luminescence and scintillation properties were investigated. In this nanocomposite scintillator system, the incorporation of high atomic number Gd compound into the glass matrix increases the X-ray stopping power of the glass scintillator, and effective energy transfer between Gd3+and Tb3+ions in the nanocrystals enhances the scintillation efficiency.
authors.affiliation: Electro-Optical Systems Laboratory, 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.forename: Gyuhyon
authors.initials: G
authors.lastname: Lee
authors.affiliation: Electro-Optical Systems Laboratory, 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.forename: Nicholas
authors.initials: N
authors.lastname: Savage
authors.affiliation: Electro-Optical Systems Laboratory, Georgia Tech Research Institute, Georgia Institute of Technology, Atlanta GA 30332.
authors.forename: Brent
authors.initials: B
authors.lastname: Wagner
authors.affiliation: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta GA 30332.
authors.forename: Yuelan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Electro-Optical Systems Laboratory, Georgia Tech Research Institute, Georgia Institute of Technology, Atlanta GA 30332.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Jacobs
authors.affiliation: Electro-Optical Systems Laboratory, Georgia Tech Research Institute, Georgia Institute of Technology, Atlanta GA 30332.
authors.forename: Hisham
authors.initials: H
authors.lastname: Menkara
authors.affiliation: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta GA 30332.
authors.forename: Christopher
authors.initials: C
authors.lastname: Summers
authors.affiliation: Electro-Optical Systems Laboratory, 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.forename: Zhitao
authors.initials: Z
authors.lastname: Kang