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An X-ray image intensifier (XRII) is an image intensifier that converts X-rays into visible light at higher intensity than the more traditional fluorescent screens can. Such intensifiers are used in X-ray imaging systems (such as fluoroscopes) to allow low-intensity X-rays to be converted to a conveniently bright visible light output.
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.Applications of radiography include medical ("diagnostic" radiography and "therapeutic radiography") and industrial radiography.
An image intensifier or image intensifier tube is a vacuum tube device for increasing the intensity of available light in an optical system to allow use under low-light conditions, such as at night, to facilitate visual imaging of low-light processes, such as fluorescence of materials in X-rays or gamma rays (X-ray image intensifier), or for conversion of non-visible light sources, such as ...
The metal silver (formerly necessary to the radiographic & photographic industries) is a non-renewable resource although silver can easily be reclaimed from spent X-ray film. [8] Where X-ray films required wet processing facilities, newer digital technologies do not. Digital archiving of images also saves physical storage space. [9]
A portable aSi flat-panel detector is used to visualise the movement of liquids in sand cores under high pressure. Flat-panel detectors are a class of solid-state x-ray digital radiography devices similar in principle to the image sensors used in digital photography and video.
Direct radiography usually refers to image capture onto an amorphous silicon or selenium flat panel detector (FPD), the data being directly passed electronically to the processing computer. PSP plate radiography instead uses a cassette containing the imaging plate, which stores the image until it is read out and loaded into the computer.
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In early radiographic AEC systems, a large paddle (17" x 17") of transparent lucite was sandwiched between rare earth screens, [4] which emitted photons when excited by X-rays. The individual lucite sections were open on one end, and a solenoid was used to select one of three, or a combination of shutters that allowed the generated light into a ...