Any given point within the subject is crossed from many directions by many different beams at different times. In computed tomography (CT scanning) an X-ray source and its associated detectors rotate around the subject which itself moves through the conical X-ray beam produced. The generation of flat two dimensional images by this technique is called projectional radiography. The X-rays that pass through the object are captured behind the object by a detector (either photographic film or a digital detector). A certain amount of the X-rays or other radiation is absorbed by the object, dependent on the object's density and structural composition.
#XRAY PICTURES GENERATOR#
To create an image in conventional radiography, a beam of X-rays is produced by an X-ray generator and is projected toward the object. Similar techniques are used in airport security (where "body scanners" generally use backscatter X-ray). Applications of radiography include medical radiography ("diagnostic" and "therapeutic") and industrial radiography. Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object. Screening tests, X-ray, CT, MRI, PET, bone scan, ultrasonography, mammography, fluoroscopy Interventional, Nuclear, Therapeutic, Paediatric Projectional radiography of the knee in a modern X-ray machine
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