Radiant energy – Invisible radiation responsive nonelectric signalling – Luminescent device
Patent
1985-05-17
1986-07-29
Fields, Carolyn E.
Radiant energy
Invisible radiation responsive nonelectric signalling
Luminescent device
2504871, G01J 158
Patent
active
046032592
ABSTRACT:
X-ray image converters using rare earth oxyhalide phosphors activated with terbium and/or thulium ion are described exhibiting improved brightness. Novel reflector means are provided in said x-ray image converter devices which reflect UV radiation incident thereupon back through the phosphor layer to associated readout or recording means sensitive to this wavelength radiation. A multi layer x-ray screen construction utilizing said improved reflector means is also described providing improved image sharpness while further reducing the crossover problem because more reflected UV radiation is being transmitted to an associated photographic film.
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patent: 4478008 (1985-02-01), Rabatin
Fields Carolyn E.
General Electric Company
Hanig Richard
Jacob Fred
McDevitt J. F.
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