Abstract
In this work, we present a novel application of the full-field energy-dispersive X-ray fluorescence (EDXRF) imaging system based on a MicroPattern Gaseous Detector (2D-THCOBRA) in the cultural heritage field. The detector has an intrinsic imaging capability with spatial resolution of \(400\,{\upmu }\mathrm { m}\ \mathrm {FWHM}\), and is energy sensitive, presenting an energy resolution of approximately \(1\ \mathrm {keV\ FWHM}\) at \(5.9\ \mathrm {keV}\). The full-field XRF scanner based on the 2D-THCOBRA detector allows mapping the distribution of elements in large area samples with high detection efficiency (\(75\%\) at \(5.9\ \mathrm {keV}\)), being a very promising choice for elemental mapping analysis of large area cultural heritage samples. In this work, we have demonstrated the imaging capabilities of the full-field XRF scanner and used it to assess the restoration of a Portuguese faience piece.
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Acknowledgements
This work was partially supported by project PTDC/FIS-AQM/32536/2017 through FEDER and FCT (Portugal) programs, by Projects UIDB/50025/2020 and UIDP/50025/2020 financed by national funds through the FCT/MEC, and by the research centre Grant UID/FIS/04559/2020 to LIBPhys-UNL from the FCT/MCTES/PIDDAC (Portugal). P. M. S. Carvalho acknowledges the support of FCT (Portugal) under Contract No. PD/BD/128324/2017.
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Carvalho, P.M.S., Leite, F., Silva, A.L.M. et al. Elemental mapping of Portuguese ceramic pieces with a full-field XRF scanner based on a 2D-THCOBRA detector. Eur. Phys. J. Plus 136, 423 (2021). https://doi.org/10.1140/epjp/s13360-021-01422-y
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DOI: https://doi.org/10.1140/epjp/s13360-021-01422-y