Principle of radiography : X-rays are short wavelength electromagnetic radiations passing through material bodies more or less easily depending on their density. Radiography is used principally for paintings.
For all 3-dimensional items, it is preferable to use the SCANNER which makes it possible to obtain a 3-dimensional and therefore more easily intrepretable image (CT: computed tomography, TDM: tomodensitometry)
Radiography and scanner can be applied to all kinds of objects.
These devices allow to reveal:
- Manufacture and assembling modes
- Objects appearing inside other items
- The pictorial technique of the artists (cf. lead white use)
- Reconstituted parts