文献类型：会议论文

英文题名：Effect of γ irradiation on optical properties of Ce³⁺-doped phosphate and silicate scintillating glasses

作者：Baccaro, S; Cecilia, A; Chen, G; Mares, J; Mihokova, E; Nikl, M; Polato, P; Zanella, G; Zannoni, R

机构：[1]ENEA, TEC, IRR, I-00060 Rome, Italy;[2]E China Univ Sci & Technol, Dept Inorgan Mat, Shanghai 200237, Peoples R China;[3]Acad Sci Czech Republ, Inst Phys, Prague 16253, Czech Republic;[4]Stn Sperimentale Vetro, I-30121 Murano, Italy;[5]Univ Padua, INFN, I-35131 Padua, Italy;[6]Univ Padua, Dept Phys, I-35131 Padua, Italy

会议论文集：12th International Meeting on Radiation Processing (IMRP-12)

会议日期：MAR 25-30, 2001

会议地点：AVIGNON, FRANCE

语种：英文

外文关键词：glass scintillator; activator; radiation hardness; colour centres

摘要：A set of Ce3+ activated silicate- and phosphate-based scintillating glasses were submitted to irradiation in the Co-60 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. (C) 2002 Elsevier Science Ltd. All rights reserved.