X-ray intensifying screen

Details X-ray intensifying screen X-ray intensifying screen

1993-09-17

1995-07-11

Bell, Mark L.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

2504871, 428690, 2523014R, 25230121, 25230123, G01J 158

Patent

active

054323517

ABSTRACT:
The present invention relates to an X-ray intensifying screen comprising a support, a reflective layer, and a phosphor layer, wherein said phosphor is selected in the group of UV-blue emitting phosphors having their emission maximum at a wavelength shorter than 450 nm, and wherein a fluorescent dye is dispersed into the reflective layer or into a fluorescent dye layer interposed between said reflective layer and said phosphor layer, said fluorescent dye having its spectral absorption maximum at a wavelength shorter than 400 nm and its spectral emission maximum at a wavelength longer than 400 nm.

REFERENCES:
patent: 4028550 (1977-06-01), Weiss et al.
patent: 4362944 (1982-12-01), Suzuki et al.
patent: 4374749 (1983-02-01), Cusano et al.
patent: 4675271 (1987-06-01), Degenhardt
patent: 4893021 (1990-01-01), Bollen et al.

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