Scintillating glasses containing a large amount of Gd2O3

Ce3+-doped scintillating glasses with high light yield and high density are promising candidates for use in electromagnetic calorimeters for particle physics applications. In the present work, Ce3+-doped glasses containing a large amount of Gd2O3 in the system SiO2-B2O3-Al2O3-Gd2O3 have been prepared. Effects of substitution of Al2O3 by Ga2O3, SiO2 by Geo(2) and oxygen by fluorine on the density, optical absorption, luminescence and scintillating properties have been investigated. The glasses have a high density of 5.0-5.5g/cm(3). Substitution of fluorine for oxygen resulted in a large increase in the light yield.