In the analysis of polychrome artworks, among the techniques available in a portable version, Reflectance Spectroscopy (RS) has been established as a powerful one for the identification of pigments. The peculiar advantage of this method with respect to the other spectroscopies most commonly used, such as XRF and Raman, is that the RS equipment can be assembled with relatively low-cost components.Reflectance Spectroscopy shows, for each wavelength, the ratio between the intensity of the reflected light and the incident light, measured with respect to a standard white reference (reflectance). The reflectance spectra provide information useful for the identification of pigments.
Applications in Art examination
Learn this method. Our RS Training module
The Reflectance Spectroscopy (RS) Training module discusses the procedures for pigments’ identification using a spectral database and our affordable spectrometer.
- reflectance spectroscopy
- miniaturized spectrometers
- pigments identification
- reflectance spectra database
|Publications on Reflectance Spectroscopy|
|A. Cosentino “FORS spectral database of historical pigments in different binders” e-conservation Journal 2, 57–68, 2014.
|A. Cosentino “FORS, Fiber Optics Reflectance Spectroscopy con gli spettrometri miniaturizzati per l’identificazione dei pigmenti” Archeomatica, 1, 16–22, 2014.|
|A. Cosentino “Transmittance spectroscopy and transmitted multispectral imaging to map covered paints” Conservar Património 24, 37-45, 2016.|