Scanning Microscopy Techniques as an Assessment Tool of Materials and Interventions for the Protection of Built Cultural Heritage

Figure 11

(a) SEM images of surface morphology for assessing a laser cleaning process of a dolomitic marble. Marble surfaces after laser cleaning at 1064 nm on the right part of the images and remains of graffiti covering surface on the left; (b) SEM images of surface morphology for assessing a laser cleaning process of a lead white painting. Lead white layer after laser cleaning at 1064 nm shows craters of different sizes with the formation of lead globule.

(a)

(b)