发明名称 |
Mammography film and imaging assembly for use with rhodium or tungsten anodes |
摘要 |
A radiographic silver halide film comprises a cubic grain silver halide emulsion layer on one side of the support and a tabular grain silver halide emulsion layer on the other side. The cubic grain silver halide emulsion layer comprises a combination of first and second spectral sensitizing dyes that provides a combined maximum J-aggregate absorption on the cubic silver halide grains of from about 540 to about 560 nm. The first spectral sensitizing dye is an anionic benzimidazole-benzoxazole carbocyanine, the second spectral sensitizing dye is an anionic oxycarbocyanine. The cubic grain silver halide emulsion layer also includes a mixture of gelatin or a gelatin derivative and a second hydrophilic binder other than gelatin or a gelatin derivative at a weight ratio of first to second hydrophilic binder of from about 2:1 to about 5:1. The cubic silver halide grains comprise from about 1 to about 20 mol % chloride and from about 0.25 to about 1.5 mol % iodide, which cubic silver halide grains have an average ECD of from about 0.65 to about 0.8 mum. Moreover, the cubic silver halide grains are doped with a hexacoordination complex compound within part or all of the innermost 95% of the grains. These films can be exposed to provide a black-and-white image having a d(gamma)/d(log E) value greater than 5 and are particularly useful when imaged using X-radiation generating devices comprising rhodium or tungsten anodes.
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申请公布号 |
US2004096039(A1) |
申请公布日期 |
2004.05.20 |
申请号 |
US20020299765 |
申请日期 |
2002.11.19 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
DICKERSON ROBERT E.;MOORE WILLIAM E.;STEKLENSKI DAVID J. |
分类号 |
G03C1/04;G03C1/08;G03C1/18;G03C1/29;G03C1/46;G03C5/16;G03C5/17;G03C5/26;(IPC1-7):G03B42/02 |
主分类号 |
G03C1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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