RADIOGRAPHIC ELEMENTS FOR MEDICAL DIAGNOSTIC IMAGING EXHIBITING IMPROVED SPEED-GRANULARITY CHARACTERISTICS

A radiographic element for medical diagnostic imaging is disclosed comprised of a transparent support and first and second silver halide emulsion layer units coated on opposite sides of the film support, each emulsion layer unit being comprised of a silver iodohalide tabular grain emulsion containin...

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Bibliographische Detailangaben
Hauptverfasser: FOX, LUCIUS, SEIBERLING, FENTON, DAVID, EARL, BLACK, DONALD, LEE
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A radiographic element for medical diagnostic imaging is disclosed comprised of a transparent support and first and second silver halide emulsion layer units coated on opposite sides of the film support, each emulsion layer unit being comprised of a silver iodohalide tabular grain emulsion containing less than 5 mole percent iodide, based on silver. An improvement in speed in relation to granularity is obtained by the presence of tabular grains having {111} major faces, containing a maximum surface iodide concentration along their edges, and a lower iodide concentration within their corners than elsewhere along their edges.