calcium tungstate


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cal·ci·um tung·state

a phosphor with a high stopping power for x-rays that was formerly used widely in fluoroscopic screens and intensifying screens for radiography.

calcium tungstate

CaWO4, a fluorescent material formerly used for radiologic imaging. It was used in intensifying screens to amplify the image, thereby reducing the radiation exposure to the patient.
See also: calcium
References in periodicals archive ?
Blue-emitting screens use materials such as calcium tungstate and have been in use since the 19th century.
His laboratory tested 8000 substances for fluorescence and found calcium tungstate to be superior.
The intensifying screen was designed by Edison, who used calcium tungstate as a phosphor.