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10 July 2009 In-depth assessment of modifications induced during the laser cleaning of modern paintings
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Abstract
A critical challenge for the broader implementation of laser cleaning interventions in modern paintings is the assessment of the extent of any photochemical or structural modifications induced in the original substrate following laser irradiation. For this reason, we investigate several polymeric materials (PMMA, Paraloid B72) doped with aromatic photosensitisers (PhenI, POPOP) of known photochemistry, coated with uniform layers of acrylics of different thicknesses to simulate real case scenarios. Following laser irradiation, a variety of spectroscopic techniques LIF, MPEF are employed for the in depth monitoring of any photochemical and structural modifications induced in the bulk material.
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Alexandros Selimis, Panagiota Vounisiou, George J. Tserevelakis, Kristalia Melessanaki, Paraskevi Pouli, George Filippidis, Costas Beltsios, Savas Georgiou, and Costas Fotakis "In-depth assessment of modifications induced during the laser cleaning of modern paintings", Proc. SPIE 7391, O3A: Optics for Arts, Architecture, and Archaeology II, 73910U (10 July 2009); https://doi.org/10.1117/12.827658
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