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Effect of γ irradiation on optical properties of Ce-doped phosphate and silicate scintillating glasses |
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| Authors: | S Baccaro A Cecilia G Chen J Mares E Mihokova M Nikl P Polato G Zanella R Zannoni |
| Institution: | a ENEA-TEC/IRR, via Anguillarese 301, 00060 S.Maria di Galeria, Rome, Italy b Department of Inorganic Materials, East China University of Science & Technologies, Shangai 200237, People's Republic of China c Institute of Physics AS CR, Cukrovarnicka 10, 16253, Prague, Czech Republic d Stazione Sperimentale del Vetro, via Briati 10, 30121 Murano- Venezia, Italy e INFN & Department of Physics, University of Padova, via Marzolo 8, 35131 Padova, Italy |
| Abstract: | A set of Ce3+ activated silicate- and phosphate-based scintillating glasses were submitted to γ irradiation in the 60Co radioisotope source “Calliope” (ENEA-Casaccia in Rome, Italy) in the dose range between 1 and 250 Gy (3.7 Gy/h). The effect of ionising radiation was probed by transmission measurements performed before and after each irradiation on all analysed samples. From these data, the radiation-induced absorption coefficient was calculated, proportional to the density of colour centres induced by irradiation in the solid matrix. Results are discussed by taking into account the possible dependence of radiation hardness on the composition of glass matrix. |
| Keywords: | Glass scintillator Activator Radiation hardness Colour centres |
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