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Scintillation properties of Ce3+/Tb3+ co-doped oxyfluoride aluminosilicate glass for exploration of X-ray imaging.
- Source :
-
Journal of Luminescence . May2022, Vol. 245, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- Ce3+ or Tb3+ single-doped and Ce3+/Tb3+ co-doped oxyfluoride scintillation glass samples were prepared by high temperature melting method. The structures were analyzed by X-ray diffraction (XRD), the optical and luminescent properties were studied by transmittance, photoluminescence excitation, photoluminescence, X-ray excited luminescence (XEL) and fluorescence decay. The luminescence intensity in the Ce3+/5 mol% Tb3+ co-doped (CT5) glass sample under 304 nm light and X‐ray excitation is significantly enhanced compared to 5 mol% Tb3+ single-doped (T5) glass sample. The maximum integrated XEL intensity of CT5 glass sample is about 67% of the standard Bi 4 Ge 3 O 12 (BGO) crystal. Through the study of energy transfer mechanism, the results indicate that there is an energy transfer from Gd3+ ions or Ce3+ ions to Tb3+ ions. The lifetime of CT5 glass sample is 2.13 ms. The obtained results confirm that CT5 glass sample could be a promising scintillating material used in X-ray imaging. So we have demonstrated X-ray imaging using Ce3+/1–15 mol% Tb3+ co-doped (CT1-15) glass samples and confirmed they can reach a spatial resolution of 10.0 lp/mm. Further, the X-ray imaging effect of CT5 glass sample is the best, and the capability of CT5 glass sample for X-ray imaging application is confirmed. • Ce3+/Tb3+ co-doped oxyfluoride scintillation glass samples were successfully fabricated and characterized. • The scintillation mechanism and energy transfer mechanism in the Ce3+/Tb3+ co-doped glass samples were discussed. • The X-ray imaging experiments were carried out and proved the suitability of CT5 sample in X-ray imaging applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222313
- Volume :
- 245
- Database :
- Academic Search Index
- Journal :
- Journal of Luminescence
- Publication Type :
- Academic Journal
- Accession number :
- 155629013
- Full Text :
- https://doi.org/10.1016/j.jlumin.2022.118762