文献类型：会议论文

英文题名：Radiation-induced transmission spectral variations of Ce³⁺-doped heavy germanate glasses

作者：Yang, YX; Baccaro, S; Cecilia, A; Rao, JH; Zhang, JB; Fang, X; Chen, GR

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Inst Inorgan Mat, Shanghai 200237, Peoples R China

会议论文集：7th International Conference on Inorganic Scintillators and Industrial Applications

会议日期：SEP 08-12, 2003

会议地点：Polytechnic Univ Valencia, Valencia, ITALY

主办单位：Polytechnic Univ Valencia

语种：英文

外文关键词：heavy germanate glasses; cerium dopant; radiation-induced effect; transmission spectra; radiation protection

摘要：Radiation-induced transmission spectral variations of Ce3+-doped heavy germanate glasses used as scintillating materials are presented. Glass matrix contains mainly GeO2, BaO and Gd2O3 with a density higher than 52 g/m(3). Glasses are melted in the different atmosphere. The transmission spectra of glasses before and after radiation treatments are measured and compared. Unlike exhibiting the monotonous deterioration effect on the glass matrix, radiation plays the radiation protection role, even making enhanced transmission of Ce-3divided by-doped glasses, depending upon glass melting atmosphere and radiation dose. Radiation-induced reducing and oxidizing mechanism is proposed to explain phenomena. (C) 2004 Elsevier B.V. All rights reserved.