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Low-absorption, multi-layered scintillating material for high resolution real-time X-ray beam analysis

Abstract : For online X-ray beam analysis, we introduce a functional device, a multilayer scintillating screen, that succeeds in satisfying three important criteria: high X-ray transparency and high overall efficiency, which are not easily reconcilable using existing devices, as well as high spatial resolution capability. It combines a porous alumina substrate, an optical gold interposer of few nm and an efficient scintillating material (Lu2O3:Eu3+) 450 nm thick. Both layers are deposited using pulsed laser deposition. This multilayer device enables high resolution X-ray imaging while X-ray transparency is preserved to 90% even at 15 keV. Such a device is suitable for real-time X-ray beam analysis at high frequency and is a breakthrough for real-time X-ray beam corrections for most of the synchrotron experiments.
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https://hal-univ-lyon1.archives-ouvertes.fr/hal-02305580
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Submitted on : Friday, October 4, 2019 - 12:43:10 PM
Last modification on : Friday, April 16, 2021 - 10:40:04 AM

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Antonio Pereira, Thierry Martin, Mariana Levinta, Christophe Dujardin. Low-absorption, multi-layered scintillating material for high resolution real-time X-ray beam analysis. Journal of Materials Chemistry C, Royal Society of Chemistry, 2015, 3, pp.4954-4959. ⟨10.1039/c5tc00121h⟩. ⟨hal-02305580⟩

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