Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1993-03-19
1995-05-23
Baxter, Janet C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430569, 430583, G03C 1035, G03C 116
Patent
active
054181240
ABSTRACT:
A silver halide photographic emulsion, in which silver halide grains have been formed while iodide ions are rapidly being generated in a reactor vessel to form a silver iodide-containing region in the silver halide grains, and the silver halide grains have been spectrally sensitized by a sensitizing dye represented by the following formula (I): ##STR1## wherein Z.sub.1 and Z.sub.2.sup.- represent non-metallic atom group which form a 5- or 6-membered heterocyclic ring having nitrogen atom and carbon atom in the ring, R.sub.3 and R.sub.4 represent alkyl groups, X.sub.1.sup.- represents an anion, and p represents 1 or 2.
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Kawamoto Hiroshi
Kikuchi Makoto
Okamura Hisashi
Suga Yoichi
Yagihara Morio
Baxter Janet C.
Fuji Photo Film Co. , Ltd.
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