Abstract
Fibre-optics diffuse-reflectance spectroscopy was used to evaluate pigment quantity in art glazes. Measurements are non-invasive, without any contact, and can be performed in situ, without moving the work of art under investigation from its conservation place. Reflectance spectra are processed using Kubelka–Munk theory in order to obtain scattering and absorption parameters of the samples. Assuming a linear dependance of these optical properties with the pigment volume concentration of the paint layers, we were able to evaluate pigment quantities in the samples from reflectance measurements. Results are in excellent agreement with those obtained by X-ray diffraction and micro-X-ray fluorescence.
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42.25.Dd; 78.40.Ha; 78.70.Ck; 78.70.En; 81.70.Fy
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Dupuis, G., Menu, M. Quantitative evaluation of pigment particles in organic layers by fibre-optics diffuse-reflectance spectroscopy. Appl. Phys. A 80, 667–673 (2005). https://doi.org/10.1007/s00339-004-3140-x
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DOI: https://doi.org/10.1007/s00339-004-3140-x