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Heritage Science
Fig. 4 | Heritage Science

Fig. 4

From: Neural network-based classification of X-ray fluorescence spectra of artists’ pigments: an approach leveraging a synthetic dataset created using the fundamental parameters method

Fig. 4

© The National Gallery, London). b Detail of the painting corresponding to the area of an MA-XRF scan used to extract spectra from regions A through E. c Spectra of regions A through E, each an average of 24 pixels of data, noted in the detail image. The relative fluorescence intensities are plotted on a square-root scale with major characteristic X-ray lines labelled for each relevant element

Bartolomé Bermejo, Saint Michael Triumphs over the Devil (NG6553), 1468, oil and gold on wood, 179.7 × 81.9 cm. a Image of painting with detail of interest highlighted in white (image

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