文献类型：期刊文献

英文题名：Effect of gamma-ray irradiation on the optical properties of PbO-B 2O3-SiO2 and Bi2O3-B 2O3-SiO2 glasses

作者：Ou, Yuwen[1,2]; Baccaro, Stefania[2]; Zhang, Yaping[1]; Yang, Yunxia[1]; Chen, Guorong[1]

机构：[1] Key Laboratory for Ultrafine Materials, East China University of Science and Technology, Ministry of Education, Shanghai 200237, China; [2] ENEA-FIM, Via Anguillarese 301, 00123 S. Maria di Galeria, Rome, Italy

年份：2010

卷号：93

期号：2

起止页码：338

外文期刊名：Journal of the American Ceramic Society

收录：EI(收录号：20100612698427)

语种：英文

外文关键词：Glass - Opacity - Gamma rays - Lead oxide - Irradiation - Bismuth compounds

摘要：Irradiation treatments on glasses in both PbO-B2O 3-SiO2 and Bi2O3-B2O 3-SiO2 systems were carried out under the 60Co γ-ray radiation at a dose of 5.0 kGy. Ultraviolet and visible (UV-Vis) transmission spectra were used to compare the optical transmittance before and after irradiation in the wavelength range of 300-800 nm. The radiation-induced absorption coefficient (RIAC), the optical mobility gap (E0), and the width of the energy tail above the gap (ΔE) were calculated by optical transmittance. The variation of these parameters indicated that the structure of glasses changed due to irradiation. The differences in the optical properties of the two glass systems were explained from the viewpoint of glass chemistry. ? 2009 The American Ceramic Society.