Radiographic elements for medical diagnostic imaging exhibiting improved
speed-granularity characteristics
    1.
    发明授权
    Radiographic elements for medical diagnostic imaging exhibiting improved speed-granularity characteristics 失效
    用于医学诊断成像的射线照相元件显示出改善的速度粒度特性

    公开(公告)号:US5567580A

    公开(公告)日:1996-10-22

    申请号:US536898

    申请日:1995-09-29

    摘要: 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.

    摘要翻译: 公开了用于医​​学诊断成像的射线照相元件,其包括透明支撑体和涂覆在膜支撑体的相对侧上的第一和第二卤化银乳剂层单元,每个乳剂层单元由含有少于5摩尔的碘代碘酸银片状颗粒乳剂 基于银的碘化物百分比。 通过存在具有{111}主面,沿其边缘含有最大表面碘化物浓度的片状颗粒的存在,以及在它们的边缘内的其他角落内的较低的碘化物浓度,沿着其边缘的存在获得了与颗粒度相关的速度的改善。