Advantages of the Use of SR-FT-IR Microspectroscopy: Applications to Cultural Heritage

摘要: Synchrotron radiation Fourier transform infrared (SR-FT-IR) microspectroscopy represents an advance over conventional FT-IR spectroscopy because it gives a higher signal/noise ratio at the highest spatial resolution due to high brightness and collimation of synchrotron radiation. It has been successfully applied study ancient paintings, alteration corrosion layers which are heterogeneous microlayered materials made by complex mixtures organic inorganic compounds. Moreover, attribute allows spectra be routinely obtained directly on surfaces objects opens possibility for nondestructive testing museum objects. We present in this paper selection applications SR-FT-IR analysis where technique proven especially useful: first, separation identification pigment microparticles from Roman wall paintings; second, determination binding media byproducts resulting interaction between binders pigments medieval altarpieces; third, surface bronze helmet means direct surface.