This precludes the use of optical approaches for imaging. Only projection radiography can be employed in this energy range to see through hot and molten metals.
Projection radiography uses the divergence of the beam from a small source.
The ultimate resolution is limited by the diameter of the source. This figure schematically indicates the major components of the system and their placement. The resulting visible image is converted to a digital image by a CCD camera and stored in a computer. For bigger images, click on the diagrams. This diagram shows how the x-ray shadow of an object is magnified by projection.