Fast Ce3+-activated borosilicate glass scintillators prepared in air atmosphere. Issue 3 (15th February 2017)

• Record Type: Journal Article
• Authors: Sun, Xin-Yuan; Xiao, Zhuo-Hao; Wu, Yun-Tao; Kang, Zhitao
• Is Part Of: Ceramics international. Volume 43:Issue 3(2017)
• Page Start: 3401
• Page End: 3404
• Publication Date: 2017-02-15
• Subjects: Ce3+-activated borosilicate glass scintillators -- Silicon carbide -- Photoluminescence -- Radioluminescence; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2016.11.187
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: We report a simple synthesis method of a transparent and colorless Ce 3+ -activated borosilicate glass scintillator by conventional melt-quenching method in air atmosphere. The optical transmittance and X-ray absorption near edge spectroscopy (XANES) spectra imply that ceric ions (Ce 4+ ) can be effectively reduced to cerous one (Ce 3+ ) in borosilicate glass scintillator by substituting 40–60 mol% SiC for SiO2 . Compared to the x =0 glass scintillator, both the photo- and radioluminescence intensity of the optimized borosilicate glass scintillator ( x =15 C) are enhanced by a factor of 6.5 and 7.7, respectively. The integral radioluminescence intensity of the x =15 C borosilicate glass scintillator resulted from the combined reduction effect of both SiC and graphite powder is about that of 14% bismuth germinate (BGO) crystal.