Radiation resistance property of barium gallo-germanate glass doped by Nb2O5

作者：Liu, Gui-Rong; Chen, Xiao-Dong; Liu, Hong-Gang; Wang, Yan; Sun, Min^*; Yan, Na; Qian, Qi^*; Yang, Zhong-Min

来源：Chinese Physics B, 2022, 31(2): 027801.

DOI：10.1088/1674-1056/ac2b1a

• germanate glass
• radiation resistance
• Nb2O5 dopant

Effects of Nb2O5 dopant on the radiation response of barium gallo-germanate (BGG) glass are studied mainly by electron paramagnetic resonance and absorption spectroscopy. Owing to the Nb5+<-> Nb3+ interconversion in doped samples, formations of Ge-related non-bridging oxygen hole center and Ge-related electron center defects after gamma-ray irradiation are inhibited. Thereby, Nb2O5 dopant can enhance radiation resistance of BGG glass, and 1.0% Nb2O5 concentration is the best.