G - Physics – 21 – K
Patent
G - Physics
21
K
31/122, 117/22
G21K 4/00 (2006.01)
Patent
CA 1176831
TITLE IMPROVED X-RAY SCREENS BASED ON PHOSPHOR MIXTURES OF CaWO4 AND RARE EARTH TANTALATES ABSTRACT OF THE DISCLOSURE X-ray intensifying screens with improved speed and image sharpness can be made from a phosphor mixture of calcium tungstate and yttrium tantalate. The tantalate phosphor may be further activated with rare earths.
427797
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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