X-Ray screens based on phosphor mixtures of CaWO.sub.4 and rare

Details X-Ray screens based on phosphor mixtures of CaWO.sub.4 and rare X-Ray screens based on phosphor mixtures of CaWO.sub.4 and rare

1982-05-12

1983-06-07

Cooper, Jack

Stock material or miscellaneous articles

Composite

Of inorganic material

2504831, 2523014R, 2523015, 428702, C09K 11475, G01T 100

Patent

active

043871410

ABSTRACT:
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.

REFERENCES:
patent: 3338841 (1967-08-01), Brixner
patent: 3940347 (1976-02-01), Faria et al.
patent: 4054799 (1977-10-01), Wolfe et al.
patent: 4225653 (1980-09-01), Brixner

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