Diagnostic Radiography

Radiography is an imaging technique using X-rays to view the internal form of an object. To create the image, a beam of X-rays, a form of electromagnetic radiation, are produced by an X-ray generator and are projected toward the object. A certain amount of X-ray is absorbed by the object, dependent on its density and structural composition. The X-rays that pass through the object are captured behind the object by a detector (either photographic film or a digital detector). The generation of flat two dimensional images by this technique is called projectional radiography. Computed tomography (CT scanning) is where multiple two dimensional images from different angles undergo computer processing to generate 3D representations.