Radiographic process and sensitive material for the same

Details Radiographic process and sensitive material for the same Radiographic process and sensitive material for the same

1976-04-02

1977-08-09

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 82, 96126, G03C 192, G03C 114

Patent

active

040408337

ABSTRACT:
In a process for forming radiographic images which comprises exposing a photograhic sensitive material comprising a support and at least one silver halide photographic emulsion layer to radiation from a fluorescent intensifying screen to form a latent image and thereafter developing the same, the improvement which comprises the fluorescent intensifying screen having a maximum emission wavelength in the range of about 500 to about 570 nm and a distribution such that at least about 1/2 of the emission energy is at a wavelength of above about 400 nm, and said silver halide photographic emulsion layer contains at least one sensitizing dye represented by formula (I) and at least one sensitizing dye represented by formula (II): ##STR1## WHEREIN R.sub.o represents an alkyl group and R.sub.1 and R.sub.2 each represent an alkyl group but at least one of R.sub.1 and R.sub.2 represents a sulfoalkyl group, X represents an anion, and m represents an integer of 1 or 2, and m = 1 when the dye forms an inner salt; ##STR2## wherein Z represents the group of atoms necessary to complete a benzoxazole nucleus, R.sub.3 represents an alkyl group, and Q represents the group of atoms necessary to complete a 2-thioimidazolidine-2,4-dione nucleus.

REFERENCES:
patent: 3912933 (1975-10-01), Van Stappen
patent: 3951666 (1976-04-01), Hinata et al.
patent: 3953215 (1976-04-01), Hinata et al.

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