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公开(公告)号：US5955249A
公开(公告)日：1999-09-21
申请号：US037556
申请日：1998-03-09
申请人： Anthony Adin , Jerome J. Looker
发明人： Anthony Adin , Jerome J. Looker
CPC分类号： G03C5/16 , G03C1/0051 , G03C1/355 , G03C5/17 , Y10S430/166 , Y10S430/167
摘要： A radiographic element is disclosed containing in a high bromide tabular grain emulsion layer a 5-mercaptotetrazole to increase covering power. The 5-mercaptotetrazole is additionally capable of increasing imaging speed and producing colder image tones when provided with a phenyl substituent in the 1 ring position, which phenyl substituent is in turn substituted in its para position with a substituent satisfying the formula R(OCH.sub.2 CH.sub.2).sub.n O-- wherein n is an integer of from zero to 5; when n is 1 to 5, R is hydrogen, methyl or ethyl; and, when n is zero, R is methyl.
摘要翻译： 公开了一种放射线照相元件，其在高溴化物片状颗粒乳剂层中含有5-巯基四唑以增加覆盖力。 当在1环位置提供苯基取代基时，5-巯基四唑还能够增加成像速度并产生较冷的图像色调，该苯基取代基在其对位取代，其中取代基满足式R（OCH 2 CH 2）n O - 其中n为0至5的整数; 当n为1至5时，R为氢，甲基或乙基; 当n为0时，R为甲基。
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公开(公告)号：US5871892A
公开(公告)日：1999-02-16
申请号：US787035
申请日：1997-01-28
CPC分类号： G03C5/17 , G03C5/16 , A61B6/583 , Y10S430/167
摘要： Radiographic elements useful for therapy imaging are disclosed each comprised of a film support having first and second major surfaces and capable of transmitting radiation to which the radiographic element is responsive and, coated on both of the major surfaces, processing solution permeable hydrophilic colloid layers which are fully forehardened and limited to less than 45 mg/dm.sup.2 of hydrophilic colloid to facilitate processing in less than 45 seconds, at least one of said layers on each major surface including light-sensitive silver halide grains capable of providing a contrast in the range of from 4 to 8 and containing less than 3 mole percent iodide, based on silver, the hydrophilic colloid layers allowing at least 30 percent crossover within a spectral region within which the silver halide grains are light-sensitive. The radiographic elements are useful for either in localization or verification imaging.
摘要翻译： 公开了用于治疗成像的射线照相元件，每个包括具有第一和第二主表面的膜支架，并且能够传播放射线照相元件响应的辐射，并且在两个主表面上涂覆可渗透的亲水胶体层， 完全预硬化并限于少于45mg / dm 2的亲水胶体，以促进在少于45秒钟内的加工，每个主表面上的至少一个所述层包括能够提供对比度的光敏卤化银颗粒 4至8并且含有基于银的少于3摩尔％的碘化物，所述亲水胶体层允许卤化银颗粒在光敏区域内至少30％的交叉。 射线照相元件可用于定位或验证成像。
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公开(公告)号：US5866315A
公开(公告)日：1999-02-02
申请号：US859640
申请日：1997-05-20
申请人： Socman Ho , Nobuaki Kagawa , Noriyasu Kita
发明人： Socman Ho , Nobuaki Kagawa , Noriyasu Kita
IPC分类号： G03C5/17 , C09B23/06 , G03C1/00 , G03C1/005 , G03C1/015 , G03C1/035 , G03C1/07 , G03C1/09 , G03C1/18 , G03C1/34 , G03C5/26 , G03C1/14
CPC分类号： C09B23/06 , G03C1/0053 , G03C1/18 , G03C1/015
摘要： A silver halide photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer comprising a silver halide emulsion, wherein the silver halide emulsion comprises silver halide grains having an average iodide content of 0 to 1 mol %, at least 50% of total grain projected area is accounted for by tabular grains having an aspect ratio of 2 to 20; and the silver halide grains being spectrally sensitized with a sensitizing dye represented by the following formula (1) or (2): ##STR1##
摘要翻译： 公开了一种卤化银摄影感光材料，其包括其上具有包含卤化银乳剂的卤化银乳剂层的载体，其中所述卤化银乳剂包含平均碘化物含量为0至1摩尔％的卤化银颗粒，至少50 占总占地面积的百分比由长宽比为2〜20的片状颗粒构成; 并且卤化银颗粒用下式（1）或（2）表示的敏化染料进行光谱增感：式（1）式（2）
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公开(公告)号：US5853967A
公开(公告)日：1998-12-29
申请号：US82952
申请日：1998-05-21
申请人： Robert E. Dickerson
发明人： Robert E. Dickerson
IPC分类号： G03C1/00 , G03C1/005 , G03C1/035 , G03C1/09 , G03C1/40 , G03C1/46 , G03C1/74 , G03C5/16 , G03C5/17
CPC分类号： G03C5/16 , G03C1/0051 , G03C1/09 , G03C1/46 , G03C5/17 , Y10S430/164 , Y10S430/167
摘要： A mammographic medical diagnostic radiographic element is disclosed having emulsion layers coated on opposite surfaces of a transparent film support. To facilitate rapid processing the emulsion layers are fully forehardened and less than 35 mg/dm.sup.2 of hydrophilic colloid is coated on each major surface. To reduce crossover and hydrophilic colloid, emulsions on the opposite sides of the support are each divided into two layers with the layer coated nearest the support containing a particulate dye capable of being decolorized during processing. Particulate dye and silver halide grains together account for between 30 and 70 percent of the total weight of the emulsion layers. Combined with the use of spectrally sensitized tabular grain emulsions crossover can be reduced to less than 15 percent while processing can be completed in less than 45 seconds. The distribution of hydrophilic colloid and silver halide grains chosen achieves low wet pressure sensitivity. Reducing the coefficient of variation of the radiation-sensitive silver halide grains to less than 15 percent and incorporating a rhodium dopant in a normalized molar concentration of less than 1.times.10.sup.-7 based on silver allows average and lower scale contrasts currently used for mammographic imaging to be satisfied without any significant reduction in photographic speed.
摘要翻译： 公开了一种乳腺摄影医学诊断放射线照相元件，其具有涂覆在透明膜支撑体的相对表面上的乳剂层。 为了促进快速加工，乳液层被完全预硬化，并且在每个主表面上涂覆小于35mg / dm 2的亲水胶体。 为了减少交叉和亲水胶体，将支撑体相对侧上的乳液分成两层，其中最接近载体的层包含能够在加工过程中脱色的颗粒染料。 颗粒状染料和卤化银颗粒一起占乳液层总重量的30-70％。 结合使用光谱敏化片状颗粒乳剂交联可以减少到小于15％，而处理可以在少于45秒内完成。 选择的亲水胶体和卤化银颗粒的分布实现了低湿压敏感性。 将辐射敏感的卤化银颗粒的变异系数降低到小于15％，并且以基于银的小于1×10-7的归一化摩尔浓度掺入铑掺杂剂允许目前用于乳房X线照相成像的平均和较低比例的对比度为 满意，没有任何显着降低摄影速度。
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公开(公告)号：US5853946A
公开(公告)日：1998-12-29
申请号：US932584
申请日：1997-09-17
申请人： Paul Leblans , Paul Lardon
发明人： Paul Leblans , Paul Lardon
CPC分类号： C09K11/7791 , C09K11/7733 , G21K4/00 , G21K2004/06 , Y10S430/168
摘要： There is provided a photostimulable phosphor according to formula (I): Ba.sub.1-x-y-p-3q-z Sr.sub.x M.sub.y.sup.2+ M.sub.2p.sup.1+ M.sub.2q.sup.3+ F.sub.2-a-b Br.sub.a I.sub.b :zEu wherein: M.sup.1+ is at least one alkali metal selected from the group consisting of Li, Na, K, Rb and Cs; M.sup.2+ is at least one metal selected from the group consisting of Ca Mg and Pb; M.sup.3+ is at least one metal selected from the group consisting of Al, Ga, In, Tl, Sb, Bi, Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; 0.ltoreq.x.ltoreq.0.30, 0.ltoreq.y.ltoreq.0.10, 0.ltoreq.p.ltoreq.0.3, 0.ltoreq.q.ltoreq.0.1, 0.05.ltoreq.a.ltoreq.0.76, 0.20.ltoreq.b.ltoreq.0.90, a+b
摘要翻译： 提供根据式（I）的可光激发的荧光体：Ba1-xyp-3q-zSrxMy2 + M2p1 + M2q3 + F2-a-bBraIb：zEu其中：M1 +为至少一种选自Li，Na， K，Rb和Cs; M2 +是选自Ca Mg和Pb中的至少一种金属; M3 +是选自Al，Ga，In，Tl，Sb，Bi，Y，La，Ce，Pr，Nd，Sm，Gd，Tb，Dy，Ho，Er，Tm，Yb中的至少一种金属， 鲁; 0
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公开(公告)号：US5824460A
公开(公告)日：1998-10-20
申请号：US911788
申请日：1997-08-14
申请人： Robert E. Dickerson
发明人： Robert E. Dickerson
CPC分类号： G03C5/16 , G03C1/0051 , G03C1/46 , G03C2200/58 , Y10S430/167
摘要： A dual-coated radiographic element is disclosed that is capable of providing improved gastrointestinal tract images. Specifically, the radiographic elements are capable of simultaneously providing a maximum density of less than 3.0, a contrast in the range of from 1.0 to 2.0 over a lower exposure region (typically achieved by adding barium to the gastrointestinal tract) extending over an exposure range of 0.3 log E, a contrast of in the range of from 1.0 to 2.0 over a higher exposure region (typically achieved by adding an effervescent substance to the gastrointestinal tract) extending over an exposure range of 0.6 log E, and a contrast greater than 3.5 over an intermediate exposure region extending over an exposure range of 0.6 log E. To accomplish this, underlying and overlying spectrally sensitized tabular grain emulsion layers are coated on each major surface of a support. The underlying emulsion layers contain a processing solution decolorizable dye to reduce crossover to less than 15 percent and a lower speed polydisperse tabular grain emulsion containing rhodium as a dopant. The overlying emulsion layers contain a blend of higher speed polydisperse and intermediate speed monodisperse tabular grain emulsions. The radiographic elements are fully forehardened with total hydrophilic colloid coverages per side limited to less than 35 mg/dm.sup.2 to allow processing in less than 45 seconds.
摘要翻译： 公开了能够提供改善的胃肠道图像的双重涂层放射照相元件。 具体地，射线照相元件能够同时提供小于3.0的最大密度，在较低曝光区域（通常通过向胃肠道中添加钡而实现）的1.0至2.0范围内的对比度在 0.3log E，在0.6log E的暴露范围内延伸的较高暴露区域（通常通过加入泡腾物质到胃肠道获得）的1.0至2.0范围内的对比度，以及大于3.5的对比度 在0.6logE的曝光范围内延伸的中间曝光区域。为了实现这一点，将下面和覆盖的光谱增感的片状颗粒乳剂层涂覆在载体的每个主表面上。 底层的乳剂层含有处理溶液可脱色的染料，以将交换率降低到小于15％，而含有铑作为掺杂剂的较低速度的多分散片状颗粒乳剂。 上覆的乳剂层含有高速多分散和中速单分散片状颗粒乳剂的混合物。 射线照相元件完全预硬化，每侧的全部亲水胶体覆盖限制在小于35mg / dm 2，以允许在45秒内处理。
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公开(公告)号：US5733716A
公开(公告)日：1998-03-31
申请号：US694396
申请日：1996-08-12
申请人： Kazuyoshi Goan
发明人： Kazuyoshi Goan
CPC分类号： G03C5/17 , G03C1/0053 , G03C1/07 , G03C2001/0357 , G03C2001/093 , G03C2200/01 , G03C2200/48 , G03C2200/52 , Y10S430/167
摘要： A silver halide black-and-white photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer comprising silver halide grains, wherein at least 50% of the total grain projected area is accounted for by tabular grains having a chloride content of 20 mol % or more, two parallel {100}major faces and an average aspect ratio of 2 or more, said tabular grains being prepared by nucleating in the presence of a surfactant comprised of polyalkyleneoxide block copolymer.
摘要翻译： 公开了一种卤化银黑白照相感光材料，其包括其上具有包含卤化银颗粒的卤化银乳剂层的载体，其中总颗粒投影面积的至少50％由具有氯化物的片状颗粒占据 所述片状颗粒通过在由聚环氧烷烃嵌段共聚物组成的表面活性剂的存在下成核而制备，所述片状颗粒通过在20mol％以上的含量，两个平行的{100}主面和平均纵横比为2以上。
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公开(公告)号：US5679507A
公开(公告)日：1997-10-21
申请号：US519695
申请日：1995-08-25
CPC分类号： G03C1/09 , G03C1/0051 , G03C1/18 , G03C5/17
摘要： A method for chemically sensitizing a silver halide photographic emulsion with a selenium compound is disclosed. The sensitizing method comprises the steps of preparing a dispersion of solid particles of a selenium compound in an aqueous medium by a process comprising the following steps of (1) dissolving a substantially water-insoluble organic selenium compound in a substantially water immiscible low-boiling organic solvent to prepare a selenium compound solution, (2) dispersing the selenium compound solution in water or an aqueous solution of a dispersing aid to form a oil-in-water type dispersion, and (3) removing the organic solvent from the oil-in-water type dispersion by stirring the dispersion under a decompressed condition to precipitate the selenium compound so as to form a dispersion of fine solid particles of the selenium compound having an average particle size of 10 nm to 3 .mu.m;adding the solid dispersion particles of the selenium compound to a silver halide emulsion, and ripening the silver halide emulsion in the presence of the solid dispersion particles of the selenium compound.
摘要翻译： 公开了一种用硒化合物对卤化银照相乳剂进行化学敏化的方法。 敏化方法包括以下步骤：通过以下步骤制备硒化合物的固体颗粒在水性介质中的分散步骤：（1）将基本上不溶于水的有机硒化合物溶解在基本上与水不混溶的低沸点有机物 溶剂以制备硒化合物溶液，（2）将硒化合物溶液分散在水或分散助剂的水溶液中以形成水包油型分散体，和（3）从油中除去有机溶剂 - 水型分散体，在减压条件下搅拌分散体，使硒化合物沉淀，形成平均粒径为10nm〜3μm的硒化合物的微细固体颗粒的分散液; 将硒化合物的固体分散体颗粒加入到卤化银乳剂中，并在硒化合物的固体分散体颗粒存在下熟化卤化银乳剂。
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公开(公告)号：US5646412A
公开(公告)日：1997-07-08
申请号：US629493
申请日：1996-04-10
CPC分类号： C09K11/025 , G21K4/00 , G21K2004/06
摘要： A radiographic phosphor panel and radiographic phosphor composition. The radiographic phosphor panel includes a support and a luminescent layer. The luminescent layer overlies the support. The luminescent layer includes binder and coated particles. The binder is a film-forming polymer. The coated particles are embedded in the binder. The coated particles each have a core and a shell. The core is radiographic phosphor. The shell is exterior to and substantially encloses the core. The shell comprises vinyl-epoxy resin, having uncured epoxy groups in a concentration of from about 1.times.10.sup.-5 to about 60 percent by weight relative to the weight of the shell. The resin has a different composition than the binder.
摘要翻译： 射线照相荧光板和射线照相荧光体组合物。 射线照相荧光体面板包括支撑体和发光层。 发光层覆盖支架。 发光层包括粘合剂和涂覆颗粒。 粘合剂是成膜聚合物。 涂覆的颗粒嵌入粘合剂中。 涂覆的颗粒各自具有核和壳。 核心是射线照相荧光粉。 壳体外表面并且基本上包围芯体。 壳包含乙烯基环氧树脂，其具有相对于壳的重量约1×10-5至约60重量％的未固化的环氧基团。 该树脂具有与粘合剂不同的组成。
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20.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
申请人： David E. Fenton , Lucius S. Fox , Donald L. Black
发明人： David E. Fenton , Lucius S. Fox , Donald L. Black
CPC分类号： G03C1/46 , G03C1/0051 , G03C1/07 , G03C1/12 , G03C5/17 , G03C1/18 , Y10S430/167
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。
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