Scintillation properties of SrF2 translucent ceramics and crystal

We have developed SrF2 translucent ceramic by using the spark plasma sintering (SPS) method, and investigated scintillation properties and thermally stimulated luminescence (TSL) glow curves, in comparison with a SrF2 crystal. Both of the samples showed scintillation with emission peaks at 300 nm un...

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Bibliographic Details
Published in:Optik (Stuttgart) 2018-09, Vol.168, p.956-962
Main Authors: Kato, Takumi, Kawano, Naoki, Okada, Go, Kawaguchi, Noriaki, Fukuda, Kentaro, Yanagida, Takayuki
Format: Article
Language:English
Subjects:
Scintillator
SrF2
Translucent ceramics
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Summary:We have developed SrF2 translucent ceramic by using the spark plasma sintering (SPS) method, and investigated scintillation properties and thermally stimulated luminescence (TSL) glow curves, in comparison with a SrF2 crystal. Both of the samples showed scintillation with emission peaks at 300 nm under X-ray irradiation. Based on the scintillation decay times measured, the origin of emission at 300 nm was attributed to self-trapped excitation. The scintillation light yield of the SrF2 translucent ceramic was evaluated to be about 8900 photons/MeV under 57Co γ-rays. In addition, the afterglow level of the translucent ceramic was lower than that of the crystal.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2018.04.082