Fig. 8
From: Fracture saturation in paintings makes them less vulnerable to environmental variations in museums
X-ray microtomographs of a layer of historical paint layer. a Cross-section perpendicular to the surface. The gesso is visible as third layer from the bottom after wood and sizing. b Cross-section parallel to the surface. The tomograms were recorded with a voxel size of 3 µm. For presentation, the X-ray absorbing material is represented on a grey scale and the air in black