Principle:
The short wavelength of x-rays influences their penetration.
The absorption depends on the nature of the materials, their volume, density and atomic number.
X-rays that transperce the object are nowadays detected by digital sensors.
Applications:
Paint: Illustrated technique (sketch, retouching, change in composition, thick coats, new layers).
State of preservation of the medium and the paint layer
Identification of different parts of an object.
Fabrication techniques