Twinned Orthogonal Adjustable Tomograph Device in Conservation Services: Case Studies of a Recent X-ray Investigation into Baroque Oil Paintings.

High-resolution X-ray radiography using the twinned orthogonal adjustable tomograph device reveal new insights into four baroque oil paintings by Moravian masters Jan Kryštof Handke and Gabriel Müller. With pixel sizes as small as 50-88 μm, this technique visualized hidden features-such as overpainted figures, signatures, and past restorations-across large canvases (up to 1100 mm × 900 mm). Key findings include the discovery of a concealed St. Joseph figure in Handke's Madonna and Child (1753), confirming his authorship, and a signature in Müller's Maria Antonia of Questenberg, affirming its attribution. These results enhance one's understanding of the paintings' preservation state, past interventions, and artistic techniques, demonstrating the value of advanced radiography in art conservation.