X-ray and proton luminescences of bismuth-borate glasses
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Author list: Park J., Kim H.J., Kim S., Cheon J., Kaewkhao J., Limsuwan P., Insiripong S.
Publication year: 2011
Volume number: 59
Issue number: 22
Start page: 657
End page: 660
Number of pages: 4
ISSN: 0374-4884
eISSN: 0374-4884
Languages: English-Great Britain (EN-GB)
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Abstract
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, Bi2O3(30): B2O3(70), doped with CeO2, Nd2O3, Er2O3, Dy2O3, and Pr2O3 in difference concentrations by using the melt-quench technique. An X-ray luminescence study showed that only Dy2O3-doped glass emitted luminescence with a peak at 575 nm. Absorption spectra of the Dy2O3- doped glass were studied to understand the optical property. Proton luminescence of Dy2O3-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.
Keywords
Bismuth-borate, Glass scintillator, Proton beam
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