EP 0890873 A1 19990113 - Radiographic UV/Blue intensifying screen-film combination
Title (en)
Radiographic UV/Blue intensifying screen-film combination
Title (de)
Kombination von radiographischen UV/blau Verstärkerschirm und Film
Title (fr)
Combinaison écran renforçateur à l'UV/bleu-pellicule radiographique
Publication
Application
Priority
- EP 98202000 A 19980612
- EP 97202169 A 19970711
Abstract (en)
A radiographic screen/film combination or system has been provided comprising a duplitized film sandwiched between a pair of supporting or self-supporting X-ray intensifying screens, characterized in that i) said pair of supported or self-supporting X-ray intensifying screens essentially consists of luminescent phosphor particles emitting at least 50 % and more preferably at least 80 % of their emitted radiation in the wavelength range shorter than 380 nm, as e.g. a niobium and gadolinium doped, monoclinic M, yttriumtantalate (MYT) phosphor corresponding to formula I YTaO4:Gd:Nb ii) said film comprises (1111 tabular silver halide grains rich in silver chloride, spectrally sensitive to irradiation in the said wavelength range shorter than 380 nm by the presence of at least one azacyanine dye as a spectral sensitizer.
IPC 1-7
IPC 8 full level
G03C 1/005 (2006.01); G03C 1/12 (2006.01); G03C 5/17 (2006.01)
CPC (source: EP)
G03C 1/0053 (2013.01); G03C 1/122 (2013.01); G03C 5/17 (2013.01); G03C 2200/03 (2013.01)
Citation (search report)
- [DY] EP 0770909 A1 19970502 - AGFA GEVAERT NV [BE]
- [Y] US 2080050 A 19370511 - DAVID KENDALL JOHN
- [DY] WO 9311458 A1 19930610 - DU PONT [US]
- [DA] US 4225653 A 19800930 - BRIXNER LOTHAR H
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 98202000 A 19980612