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    Enhanced emissions in Tb3+-doped oxyfluoride scintillating glass ceramics containing BaF2 nanocrystals

    Access Status
    Fulltext not available
    Authors
    Huang, L.
    Jia, S.
    Li, Y.
    Zhao, S.
    Deng, D.
    Wang, H.
    Jia, Guohua
    Hua, Y.
    Xu, S.
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Huang, L. and Jia, S. and Li, Y. and Zhao, S. and Deng, D. and Wang, H. and Jia, G. et al. 2015. Enhanced emissions in Tb3+-doped oxyfluoride scintillating glass ceramics containing BaF2 nanocrystals. Nuclear Instruments and Methods in Physics Research A. 788: pp. 111-115.
    Source Title
    Nuclear Instruments and Methods in Physics Research A
    DOI
    10.1016/j.nima.2015.03.084
    ISSN
    0168-9002
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/62722
    Collection
    • Curtin Research Publications
    Abstract

    Transparent Tb3+-doped glass ceramics containing BaF2 nanocrystals were prepared by melt-quenching method with subsequent heat treatment. The XRD and EDS results showed the precipitated crystalline phase in the glass matrix was BaF2. Under 376 nm light, Tb3+ doped oxyfluoride glass ceramics containing BaF2 nanocrystals showed more intense green emission than the as-made glass, and the emission intensity increased with increasing heat treatment temperature and time. The lifetimes of 541 nm emission of Tb3+ doped oxyfluoride glass ceramics were longer than that of as-made glass, which are in the range from 3.00 ms to 3.55 ms. Under X-ray excitation, the green emission was enhanced in the glass ceramics compared to the as-made glass. The results indicate Tb3+ doped oxyfluoride glass ceramics containing BaF2 nanocrystals could be a material candidate for X-ray glass scintillator for slow event detection.

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