Radiant energy – Source with recording detector – Using a stimulable phosphor
Patent
1996-09-05
1997-09-09
Fields, Carolyn E.
Radiant energy
Source with recording detector
Using a stimulable phosphor
G01N 2304
Patent
active
056659768
ABSTRACT:
A radiation image stored on a stimulable phosphor sheet is read-out by exposing the stimulable phosphor sheet to stimulating rays, photoelectrically detecting light emitted by the stimulable phosphor sheet by a photomultiplier and converting it into an electric image signal in a read-out section while feeding the stimulable phosphor sheet through a read-out section toward an erasing section. Residual radiation image information on the stimulable phosphor sheet is erased by exposing the portion of the stimulable phosphor sheet which is fed to the erasing section after passing through the read-out section to first erasing light, and exposing the stimulable phosphor sheet to second erasing light while feeding the stimulable phosphor sheet through the erasing section toward the read-out section. The first erasing light contains no light component in a wavelength range which can be detected by the photomultiplier and the second erasing light contains a light component in the wavelength range which can be detected by the photomultiplier read-out means.
REFERENCES:
patent: 5065021 (1991-11-01), Arakawa
patent: 5237177 (1993-08-01), Kimura
patent: 5550386 (1996-08-01), Kojima et al.
Fields Carolyn E.
Fuji Photo Film Co. , Ltd.
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