• Computed Radiography refers to the device and technique used to capture and process X-rays stored on a photostimulable phosphor plate. The phosphor used in Computed Radiography Imaging Plates have the quality of being phosphorescent which means they can store X-ray energy and then later emit it as light. In this particular case the phosphors luminesce (emit light) when stimulated by the scanning laser light of the Computed Radiography reader. The emitted light is captured and converted to an electrical signal by an incorporated photomultiplier tube. The electrical signals are digitized and stored as a digital X-ray image.

• Fluoroscopy is a type of medical imaging that shows a continuous x-ray image on a monitor, much like an x-ray movie. It is used to diagnose or treat patients by displaying the movement of a body part or of an instrument or dye (contrast agent) through the body.
During a fluoroscopy procedure, an x-ray beam is passed through the body then strikes a scintillator (a screen coated with rare earth minerals) which emits photons in proportion to the energy of the incoming X-rays. The photons are detected and intensified by an Image Intensifier (II) and finally detected by a CCD video camera. The camera transmits the moving image to a monitor so that the body part and its motion can be seen in detail.

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