Radiant energy – Invisible radiation responsive nonelectric signalling – Luminescent device
Patent
1993-07-06
1994-07-26
Dzierzynski, Paul M.
Radiant energy
Invisible radiation responsive nonelectric signalling
Luminescent device
2523014H, G01N 2304, C09K 1185
Patent
active
053329074
ABSTRACT:
A method for recording and reproducing a radiation image comprising the steps of (i) causing a phosphor, which can be stimulated with visible or infrared radiations, to absorb a high energy radiation passing through an object, (ii) stimulating phosphor with visible or infrared radiations to release the energy stored as fluorescent light, and (iii) detecting fluorescent light with light detecting means, wherein the photostimulable phosphor is selected from the group consisting of green-emitting trivalent erbium activated barium ytterbium halides, trivalent erbium activated barium fluorohalides and solid solutions thereof, optionally comprising an alkali metal halide. Apparatus for recording and reproducing a radiation image using the above described method. Radiation image storage panel containing the above described photostimulable phosphors. Light-stimulable phosphors selected within the group consisting of green-emitting trivalent erbium activated barium ytterbium halides, trivalent erbium activated barium fluorohalides and solid solutions thereof, optionally comprising an alkali metal halide.
REFERENCES:
patent: 3859527 (1975-01-01), Luckey
patent: 4239968 (1980-12-01), Kotera et al.
patent: 4258264 (1981-03-01), Kotera et al.
patent: 5089170 (1992-02-01), Umemoto et al.
Dzierzynski Paul M.
Griswold Gary L.
Hanig Richard
Kirn Walter N.
Litman Mark A.
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