X-ray and Proton Luminescences of Bismuth-borate Glasses

Heavy scintillators with good radiation hardness and low cost can be applied in high -energy physics, astrophysics, homeland security and radiation detection. It is possible to make heavy-iondoped glass scintillators that can meet these requirements. We fabricated bismuth-borate glasses, Bi_2O_3(30) : B_2O_3(70), doped with CeO_2, Nd_2O_3, Er_2O_3, Dy_2O_3, and Pr_2O_3 in difference concentrations by using the melt-quench technique. An X-ray luminescence study showed that only Dy_2O_3-doped glass emitted luminescence with a peak at 575 nm. Absorption spectra o f the Dy_2O_3-doped glass were studied to understand the optical property. Proton luminescence of Dy_2O_3-doped glass was studied by using the 45-MeV proton beam from the MC-50 cyclotron at the Korea Institute of Radiological and Medical Sciences (KIRAMS). The results for the proton and the X-ray luminescences were compared. KCI Citation Count: 8