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公开(公告)号：US5856077A
公开(公告)日：1999-01-05
申请号：US911483
申请日：1997-08-14
CPC分类号： G03C1/067 , G03C5/16 , G03C1/0051 , G03C2001/094 , G03C2200/52 , G03C2200/58 , G03C5/02 , Y10S430/167
摘要： A mammographic medical diagnostic radiographic element is disclosed that produces sharp images and is capable of being processed in less than 60 seconds. Each of imaging and antihalation fully forehardened hydrophilic colloid layer units are coated on the opposite sides of a transparent film support at a hydrophilic colloid coating coverage of less than 55 mg/dm.sup.2. The radiation-sensitive silver halide grains contained in the imaging layer unit are provided by a tabular grain emulsion coated at a coverage capable of providing a maximum density on processing of greater than 3.6. To provide a mid-scale contrast of greater than 3.0 and a lower scale contrast of greater than 2.2, the radiation-sensitive grains (a) exhibit an equivalent circular diameter coefficient of variation grain of less than 15 percent and (b) contain rhodium in a normalized molar concentration of less than 1.times.10.sup.-6 based on silver.
摘要翻译： 公开了一种乳房X线照相医学诊断放射线照相元件，其产生清晰的图像并且能够在不到60秒内进行处理。 在透明膜载体的相对侧上，以小于55mg / dm 2的亲水胶体涂层覆盖率将完全预硬化的亲水胶体层单元中的每一个成像和防光晕涂覆。 包含在成像层单元中的辐射敏感卤化银颗粒由涂覆在覆盖层上的片状颗粒乳剂提供，能够在大于3.6的处理上提供最大密度。 为了提供大于3.0的中等尺度对比度和大于2.2的较小尺度对比度，辐射敏感颗粒（a）表现出等于圆直径变异系数小于15％，（b）含有铑 基于银的归一化摩尔浓度小于1×10 -6。
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公开(公告)号：US5637447A
公开(公告)日：1997-06-10
申请号：US574508
申请日：1995-12-19
申请人： Robert E. Dickerson , Richard E. Beal , Franklin C. Brayer , Stephen A. Hershey , Patrick M. Jeffries
发明人： Robert E. Dickerson , Richard E. Beal , Franklin C. Brayer , Stephen A. Hershey , Patrick M. Jeffries
CPC分类号： G03C5/164 , G03C1/295 , G03C1/832 , G03C5/16 , G03C1/035 , G03C2200/58 , Y10S430/145 , Y10S430/167
摘要： A radiation-sensitive film for reproducing digitally stored medical diagnostic images through a series of laterally offset exposures by a controlled radiation source followed byprocessing in 90 seconds or less including development, fixing and drying is disclosed. The film exhibits an average contrast in the range of from 1.5 to 2.0, measured over a density above fog of from 0.25 to 2.0. An emulsion is provided in which silver bromochloride grains provided (a) containing at least 10 mole percent bromide, based on silver, (b) having a mean equivalent circular diameter of less than 0.40 .mu.m, (c) exhibiting an average aspect ratio of less than 1.3, and (d) coated at a silver coverage of less than 40 mg/dm.sup.2. Adsorbed to the surfaces of the silver bromochloride grains is at least one spectral sensitizing dye having an absorption half peak bandwidth in the spectral region of exposure by the controlled exposure source. The film also contains an infrared opacifying dye capable of reducing specular transmission through the film before, during and after processing to less than 50 percent, measured at a wavelength within the spectral region of from 850 to 1100 nm.
摘要翻译： 公开了一种用于通过受控辐射源的一系列横向偏移曝光再现数字存储的医疗诊断图像的辐射敏感膜，随后在90秒或更短时间内处理，包括显影，定影和干燥。 该薄膜的平均对比度在1.5至2.0的范围内，在雾度以上的密度测量为0.25至2.0。 提供了一种乳液，其中溴溴化银颗粒提供（a）含有至少10摩尔百分比的溴，基于银，（b）平均当量圆直径小于0.40微米，（c）具有平均长宽比 小于1.3，（d）以小于40mg / dm2的银覆盖率涂覆。 吸附到溴氯化银颗粒的表面上的是至少一种光谱增感染料，其在受控曝光源的曝光的光谱区域中具有吸收半峰带宽。 该薄膜还含有一种红外遮光染料，其能够在850至1100nm的光谱区域内的波长下测量，在加工前，加工期间和之后通过薄膜的镜面透射小于50％。
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公开(公告)号：US5834174A
公开(公告)日：1998-11-10
申请号：US893133
申请日：1997-07-15
CPC分类号： G03C1/95 , G03C1/053 , Y10S430/151
摘要： A photographic element comprising a support, at least one hydrophilic light-sensitive layer, and a light-insensitive layer containing a binder and solid, nonporous polymer matte particle having the formula: (A).sub.x (B).sub.y where A is a monofunctional ethylenically unsaturated monomer, B is a polyfunctional ethylenically unsaturated monomer, x is from 0 to 55 mole %, and y is about 45 to 100 mole %.
摘要翻译： 一种照相元件，其包括载体，至少一个亲水感光层和含有粘合剂的光不敏感层和具有下式的固体无孔聚合物哑光颗粒：（A）x（B）y其中A是单官能烯属不饱和的 单体，B是多官能烯属不饱和单体，x为0至55摩尔％，y为约45至100摩尔％。
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4.发明授权Radiographic elements that exhibit reduced gloss non-uniformities when quick processed 失效放射照相元件在快速加工时表现出光泽不均匀性的降低
公开(公告)号：US5856075A
公开(公告)日：1999-01-05
申请号：US915810
申请日：1997-08-21
CPC分类号： G03C5/16 , G03C1/46 , G03C1/035 , Y10S430/151 , Y10S430/164 , Y10S430/167
摘要： Medical diagnostic radiographic elements capable of being processed in less than 45 seconds are disclosed that exhibit reduced gloss non-uniformities, Gloss non-uniformity reduction is attributable to the presence of a hydrophilic colloid layer overlying the imaging layer unit containing radiation-sensitive nontabular silver halide grains accounting for from 0.5 to less than 10 percent of monolayer coverage and having a mean equivalent circular diameter ranging from greater than the thickness of the overlying hydrophilic colloid layer up to 1.6 times the thickness of the overlying hydrophilic colloid layer.
摘要翻译： 公开了能够在少于45秒内处理的医疗诊断放射照相元件，其表现出光泽不均匀性的降低。光泽不均匀性降低可归因于在含有辐射敏感性非白色卤化银的成像层单元上的亲水胶体层的存在 占单层覆盖率的0.5％至小于10％，平均当量圆直径大于上覆亲水胶体层的厚度，直至上覆亲水胶体层厚度的1.6倍。
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公开(公告)号：US5916741A
公开(公告)日：1999-06-29
申请号：US920144
申请日：1997-05-26
CPC分类号： G03C1/95 , Y10S430/151 , Y10S430/162
摘要： The present invention provides a photographic element comprises a support, at least one hydrophilic light-sensitive layer, and a light-insensitive layer containing a binder and polymer matte particles having the formula:(A).sub.x (B).sub.y (C).sub.z (I)where A is a monofunctional ethylenically unsaturated monomer which forms a homopolymer with a Tg less than 20.degree. C., B is a monofunctional ethylenically unsaturated monomer which forms a homopolymer with a Tg greater than 60.degree. C., C is a monomer with two or more ethylenically unsaturated groups, x is about 10 to 95 mole %, y is less than 85 mole %, and z is about 5 to 90 mole %.
摘要翻译： 本发明提供了一种照相元件，其包括载体，至少一个亲水感光层和含有粘合剂的光不敏感层和具有下式的聚合物哑光颗粒：（A）x（B）y（C）z（ I）其中A是形成Tg小于20℃的均聚物的单官能烯属不饱和单体，B是形成Tg大于60℃的均聚物的单官能烯属不饱和单体，C是具有 两个或更多个烯键式不饱和基团，x为约10至95摩尔％，y小于85摩尔％，z为约5至90摩尔％。
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