Radiant energy – Invisible radiation responsive nonelectric signalling – Luminescent device
Patent
1993-09-03
1994-11-15
Dzierzynski, Paul M.
Radiant energy
Invisible radiation responsive nonelectric signalling
Luminescent device
2523014H, C09K 1161
Patent
active
053650719
ABSTRACT:
The present invention relates to new phosphors for use in panels, apparatus and methods for recording and reproducing a high energy radiation image, including the steps of stimulating a phosphor image-wise exposed to radiation and detecting the fluorescent light emitted by said phosphor upon stimulation, said phosphor being a UV-blue-emitting trivalent cerium activated rare earth metal halo-silicate, optionally co-activated with one or more co-activators selected from the group consisting of Tb, Zr and Sm.
REFERENCES:
patent: 3448056 (1969-06-01), Chenot
patent: 5034607 (1991-07-01), McAllister et al.
patent: 5138171 (1992-08-01), Tecotzky et al.
Abstract--Lanthanum and Yttrium Halo-Silicate Phosphors, W. Lehmann and Th. J. Isaacs, Mar. 1978, Westinghouse Research & Development Center, Pittsburgh, Pa.
Abstract--Very Thin Silicon Nitride Films Grown By Direct Thermal Reaction With Nitrogen, T. Ito. S. Hijiya, T. Nozaki, H. Arakawa, M. Shinoda, Y. Fukukawa, Mar. 1978, Semiconductor Laboratory, Fujitsu Laboratories Ltd., Japan.
Abstract--Preparation and Properties of Y.sub.3 Si.sub.2 O.sub.8 Cl; Ce Phosphor, H. Yamada, T. Kano and M. Tanabe, Oct. 18, 1977, Central Research Laboratory of Hitachi Ltd., Japan.
Extract--Phosphors with short afterglow for flying spot tube--Hitachi Ltd., JP 49097785, JP 76017512.
Dzierzynski Paul M.
Griswold Gary L.
Henig Richard
Kirn Walter N.
Litman Mark A.
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