文献类型：期刊文献

英文题名：Effect of Gamma-Ray Irradiation on the Optical Properties of PbO-B₂O₃-SiO₂ and Bi₂O₃-B₂O₃-SiO₂ Glasses

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

机构：[1]ENEA FIM, I-00123 Rome, Italy;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

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：;WOS:【SCI-EXPANDED(收录号:WOS:000274176500007)】；

基金：This work was supported by the Shanghai Leading Academic Discipline Project, B502.

语种：英文

摘要：Irradiation treatments on glasses in both PbO-B2O3-SiO2 and Bi2O3-B2O3-SiO2 systems were carried out under the 60Co gamma-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 (E-0), and the width of the energy tail above the gap (Delta E) 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.