Unilateral NMR: a Noninvasive Tool for Monitoring In Situ the Effectiveness of Intervention to Reduce the Capillary Raise of Water in an Ancient Deteriorated Wall Painting
Figure 5
(a) Sketch of the degraded area of the wall painting. (b) Moisture distribution map at a depth of 0.1 cm obtained in November 2009. Labels evidence few areas sampled for SEM-EDS analysis: S1 and S3 indicate areas showing thin salts efflorescence, S2 indicates an area with thick salts efflorescence, S4 indicates an area with a thick encrustation.
