µ-XRF Studies on the Colour Brilliance in Ancient Wool Carpets

<div>Fitted X-ray fluorescence maps at the Al K-edge (3.0 keV excitation energy, 2.8 s acquisition per pixel). (a) Recently dyed with madder roots and KAl(SO4)2. (b) 18th century carpet. (c) Blank sample without KAl(SO4)2 treatment, but Al contaminations at the surface.</div>

Scanning

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Figure 2

Figure 2: µ-XRF Studies on the Colour Brilliance in Ancient Wool Carpets