X-rays are a type of radiation which may be used for analysing aspects of a work of art not visible to the naked eye. X-rays will pass through most solid objects, but are obstructed by some materials. The heavier the atoms of a substance, the more resistance to the rays. An X-radiograph records the areas of the work where the X-rays have been impeded; such parts appear white. Pigments containing heavy metals such as lead therefore show up, as do the nails used to construct an altarpiece.

X-radiographs are difficult to interpret because the image shows all of the layers of the work superimposed.

Source: National Gallery (London)
calendar / other activities
Receive regular email updates from Highlanes Gallery. Sign-up to join our mailing list.
sign up
website by callan computers
bookmark this page
Home   |   About   |   Collection   |   Search   |   Shop Online Copyright © Highlanes Gallery Ltd.   |   Privacy Policy
Banbridge District Council The Arts Council Louth County Council INTERREG IIIA
International Fund For Ireland