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公开(公告)号：US07112399B2
公开(公告)日：2006-09-26
申请号：US10922033
申请日：2004-08-19
CPC分类号： G03C1/49872 , G03C1/002 , G03C1/0051 , G03C1/46 , G03C1/49809 , G03C1/49818 , G03C1/49827 , G03C1/49845 , G03C1/8155 , G03C5/17 , G03C2001/7425 , G03C2005/3007 , Y10S430/166 , Y10S430/167 , Y10S430/168
摘要： Photothermographic materials are coated with thermally developable imaging layers on both sides of the support. Such materials can be arranged in association with one or more phosphor intensifying screens capable of providing emission at a predetermined wavelength in imaging assemblies. These imaging assemblies can be exposed to X-radiation and thereby form a latent image in the photothermographic material that can eventually be heat developed and used for medical diagnosis. The photothermographic materials contain an opaque material that acts as a crossover control agent that absorbs radiation at the predetermined wavelength, for example at 300 to 450 nm, and has limited absorption at higher wavelengths. When the photothermographic material is heated, the opaque material loses its opacity. Additional crossover control agents, such as UV-absorbing compounds, can also be added to the support or to an antihalation layer.
摘要翻译： 光热照相材料在支撑体的两侧涂覆有热显影成像层。 这样的材料可以与能够在成像组件中以预定波长提供发射的一个或多个荧光增强屏相关联地布置。 这些成像组件可以暴露于X射线，从而在光热敏成像材料中形成潜像，其最终可被热显影并用于医学诊断。 光热敏成像材料含有不透明材料，其作为以预定波长吸收辐射的交叉控制剂，例如在300至450nm处，并且在较高波长处具有有限的吸收。 当光热敏成像材料被加热时，不透明材料失去其不透明度。 另外的交联控制剂，例如UV吸收化合物，也可以添加到载体或抗卤盐层。
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公开(公告)号：US20050277073A1
公开(公告)日：2005-12-15
申请号：US11150429
申请日：2005-06-13
申请人： Takeshi Funakubo
发明人： Takeshi Funakubo
CPC分类号： G03C1/498 , G03C5/17 , Y10S430/167
摘要： The invention provides a photothermographic material having, on both sides of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, which is to be exposed with X-rays using a fluorescent intensifying screen, wherein (1) a coating amount of the photosensitive silver halide per one side is from 0.01 g/m2 to 0.45 g/m2 in terms of silver amount; and (2) a crossover (%) is 30% or more, or when parallel light having the same wavelength as a main emission peak wavelength of the fluorescent intensifying screen is incident perpendicular to the surface of the photothermographic material, the parallel light component of transmitted light comprises 5% or more of the incident light. A photothermographic material for medical use having high sensitivity and high image quality is provided.
摘要翻译： 本发明提供了一种光热敏成像材料，其在载体的两侧上具有至少包含感光卤化银，非光敏有机银盐，还原剂和粘合剂的图像形成层，其将被暴露于X - 使用荧光增强屏幕的方法，其中（1）每一侧的感光卤化银的涂布量为0.01g / m 2至0.45g / m 2 以银量计; 和（2）交叉（％）为30％以上，或者当与荧光增强屏的主发光峰值波长具有相同波长的平行光垂直于光热敏成像材料的表面入射时，平行光成分 透射光包含5％以上的入射光。 提供了具有高灵敏度和高图像质量的用于医疗用途的光热敏成像材料。
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公开(公告)号：US06967071B2
公开(公告)日：2005-11-22
申请号：US10958736
申请日：2004-10-05
CPC分类号： G03C5/17 , G03C1/0051 , G03C1/047 , G03C1/46 , G03C1/7954 , G03C5/16 , G03C2001/0055 , G03C2001/03511 , G03C2001/0478 , G03C2007/3025 , G03C2200/27 , Y10S430/167
摘要： An ultra-high-speed radiographic imaging assembly (at least 900 system speed) is useful especially for pediatric radiography to provide images with improved contrast and sharpness and reduced fog. The imaging assembly includes a symmetric film having a speed of at least 400 that includes at least two silver halide emulsion layers on each side of a film support that comprise tabular silver halide grains. The imaging assembly also includes two fluorescent intensifying screens wherein the pair of screens has a screen speed of at least 400 and the screens have an average screen sharpness measurement (SSM) value greater than reference Curve A of FIG. 4. The screens can have a support that includes a reflective substrate comprising a continuous polyester phase and microvoids containing inorganic particles dispersed within the polyester phase.
摘要翻译： 超高速放射照相成像组件（至少900系统速度）对于儿科放射照相是有用的，以提供具有改善的对比度和清晰度以及降低雾度的图像。 成像组件包括具有至少400的速度的对称膜，其包括在包含片状卤化银颗粒的膜支撑体的每一侧上的至少两个卤化银乳剂层。 成像组件还包括两个荧光增强屏幕，其中一对屏幕具有至少400的屏幕速度，并且屏幕具有大于“FIGREF IDREF =”图“的参考曲线A的平均屏幕锐度测量（SSM）值。 。 4 。 筛网可以具有支撑体，其包括包含连续聚酯相的反射基底和含有分散在聚酯相内的无机颗粒的微孔。
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4.发明申请Stabilized high-speed thermally developable emulsions and photothermographic materials 审中-公开稳定的高速热显影乳液和光热敏成像材料公开(公告)号：US20050106514A1
公开(公告)日：2005-05-19
申请号：US10715199
申请日：2003-11-17
申请人： Karissa Eckert , James Philip , Kumars Sakizadeh , Doreen Lynch
发明人： Karissa Eckert , James Philip , Kumars Sakizadeh , Doreen Lynch
CPC分类号： G03C1/49845 , G03C1/0051 , G03C1/04 , G03C1/46 , G03C1/49818 , G03C1/49827 , G03C1/49863 , G03C5/17 , G03C2005/3007
摘要： Thermally developable compositions, such as photothermographic emulsions, include certain stabilizing polycarboxylic acid compounds and ascorbic acid or reductone reducing agents. These compositions can be used in thermally developable materials such as photothermographic materials to reduce changes in Dmin, Dmax, and photospeed upon storage. Such materials can have thermally developable imaging layers on one or both sides of the support and be arranged in association with one or more phosphor intensifying screens in imaging assemblies. These imaging assemblies can be exposed to X-radiation and thereby excited to form a latent image in the photothermographic material that can eventually be used for medical diagnosis.
摘要翻译： 可热显影组合物，例如光热敏成像乳液，包括某些稳定的多元羧酸化合物和抗坏血酸或还原酮还原剂。 这些组合物可以用于可热显影的材料，例如光热成像材料，以减少存储时的D min min，D max max和photopeed的变化。 这样的材料可以在支撑体的一侧或两侧上具有热显影成像层，并且与成像组件中的一个或多个荧光增强屏相关联地布置。 这些成像组件可以暴露于X射线，从而被激发以在光热敏成像材料中形成最终可用于医学诊断的潜像。
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公开(公告)号：US06878512B2
公开(公告)日：2005-04-12
申请号：US10697513
申请日：2003-10-30
申请人： Simona Fava , Roberta Bellunghi , Roberta Ganduglia , Luca Ceruti
发明人： Simona Fava , Roberta Bellunghi , Roberta Ganduglia , Luca Ceruti
CPC分类号： G03C1/0051 , G03C5/16 , G03C5/17 , G03C2001/0055 , G03C2001/0357
摘要： The present invention relates to a new silver halide tabular grain emulsion, wherein said silver halide emulsion comprises tabular grains having average thickness lower than 0.15 μm, an average diameter of at least 1.20 μm and an average aspect ratio of at least 8:1, and showing a coefficient of diameter variation COVd within the range of from 31% to 44% and a coefficient of thickness variation COVt lower than 25%.
摘要翻译： 本发明涉及一种新的卤化银片状颗粒乳剂，其中所述卤化银乳剂包括平均厚度小于0.15μm，平均直径至少1.20μm，平均长径比至少为8:1的片状颗粒，以及 显示直径变化系数COVd在31％至44％的范围内，厚度变化系数COVt低于25％。
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公开(公告)号：US20050023485A1
公开(公告)日：2005-02-03
申请号：US10903351
申请日：2004-07-30
申请人： Jan Koninckx
发明人： Jan Koninckx
CPC分类号： G03C5/17
摘要： An X-ray imaging cassette having a cover side and a tube side comprises, inbetween said cover and tube side, a radiation image storage phosphor plate and a tungsten filter foil having a thickness in the range from 0.10 to 0.60 mm, and, more preferably in the range from 0.10 to 0.30 mm, and is particularly useful in applications for radiotherapy.
摘要翻译： 具有盖侧和管侧的X射线成像盒在所述盖和管侧之间包括辐射图像存储磷光体板和厚度在0.10至0.60mm范围内的钨过滤箔，更优选地 在0.10至0.30mm的范围内，并且在放射治疗的应用中特别有用。
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7.发明授权Method and apparatus for accelerated removal of energy and residual images from phosphor screen employed in filmless radiography 失效用于无电影放射照相术中从荧光屏加速去除能量和残留图像的方法和装置
公开(公告)号：US6140663A
公开(公告)日：2000-10-31
申请号：US47552
申请日：1998-03-25
摘要： Methods and apparatus for rapidly removing stored energy from (i.e., erasing) a reusable photostimulable storage phosphor screen use a first source of electromagnetic radiation which primarily outputs a wavelength or wavelengths of about 577 nanometers to about 597 nanometers, and a second source of electromagnetic radiation which primarily outputs a wavelength or wavelengths in the infrared region. Exposure to the second source of radiation may occur either after, or simultaneously with, exposure to the first source of radiation. During exposure to the first source of electromagnetic energy, ultraviolet radiation is filtered out so that none reaches the phosphor screen, or a first source is selected which does not output substantially any ultraviolet radiation. The first source of electromagnetic radiation erases the phosphor screen to a homogenized quasi-erased state. The second source of electromagnetic radiation erases the phosphor screen from the homogenized quasi-erased state to a fully or nearly fully erased state. The first source of electromagnetic radiation may be a sodium vapor lamp which also functions to remove residual images. Residual images may also be removed by exposing the phosphor screen to a source of electromagnetic radiation which outputs a wavelength or wavelengths including at least one of infrared and near-infrared, and a reduced amount of charging wavelengths. The process may include filtering any visible light having a wavelength below red light emitted from the second source of radiation.
摘要翻译： 用于从可再利用的可光激励存储荧光屏中快速去除（即擦除）存储的能量的方法和装置使用主要输出约577纳米至约597纳米的波长或波长的第一电磁辐射源，以及第二电磁辐射源 其主要输出红外区域中的波长或波长。 暴露于第二辐射源可能在暴露于第一辐射源之后或同时暴露于第一辐射源。 在暴露于第一电磁能量源期间，紫外线辐射被滤出，使得没有到达荧光屏，或选择不输出基本上任何紫外线辐射的第一源。 第一电磁辐射源将荧光屏消除为均匀的准擦除状态。 第二电磁辐射源将荧光屏从均匀化的准擦除状态消除到完全或接近完全擦除状态。 电磁辐射的第一来源可以是钠蒸汽灯，其还用于去除残留图像。 通过将荧光屏暴露于输出包括红外线和近红外线中的至少一种的波长或波长的电磁辐射源以及减少的充电波长的量也可以去除残留图像。 该过程可以包括过滤从第二辐射源发射的具有低于红光的波长的任何可见光。
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公开(公告)号：US6120902A
公开(公告)日：2000-09-19
申请号：US871328
申请日：1992-04-21
CPC分类号： G21K4/00 , G21K2004/06 , G21K2004/08 , G21K2004/10 , Y10S428/917
摘要： A method of manufacturing a luminescent article comprising a self-supporting or supported phosphor containing layer having thereon a protective coating, said method comprising the step of applying on top of said phosphor containing layer a radiation-curable liquid coating composition having at the coating temperature a viscosity of at least 450 mPa.s, the viscosity at that temperature being measured with a Hoeppler viscometer.
摘要翻译： 一种制造发光制品的方法，包括其上具有保护涂层的自支撑或支撑的含磷光体层，所述方法包括在所述含磷层的顶部上施加可辐射固化液体涂料组合物的步骤，所述辐射固化液体涂料组合物的涂覆温度为 粘度至少为450mPa.s，该温度下的粘度用Hoeppler粘度计测量。
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公开(公告)号：US6042986A
公开(公告)日：2000-03-28
申请号：US69390
申请日：1998-04-29
CPC分类号： G03C5/17 , G03C5/16 , Y10S430/145 , Y10S430/167
摘要： Portal localization radiographic elements and a process of confirming the targeting of a beam of X-radiation of from 4 to 25 MVp using the portal radiographic elements are disclosed. The X-radiation is directed at a subject containing features that are identifiable by differing levels of X-radiation absorption. After a first X-radiation exposure a shield containing a portal is placed between the subject and the source of X-radiation. X-radiation is directed at the subject through the portal. In each instance the X-radiation leaving the subject impinges on a metal screen, causing it to emit electrons, and the electrons impinge upon a fluorescent screen, causing it to emit light, creating during the first and second exposures first and second superimposed latent images in the radiographic element. A processor is employed to convert the latent images to viewable silver images from which intended targeting of the X-radiation passing through the portal in relation to the identifiable features of the subject is realized. The processor relies on attenuation of an infrared beam of a wavelength from 850 to 1100 nm by the radiographic element for activation, and at least one of the hydrophilic colloid layers of the radiographic element contains particles having an index of refraction in the wavelength range of from 850 to 1100 nm that differs from that of the hydrophilic colloid by at least 0.2 to create a specular density capable of attenuating the infrared beam and activating the processor.
摘要翻译： 公开了门静脉定位放射照相元件和使用门静脉造影元件确定4至25MVp的X射线束的靶向的过程。 X射线指向包含可通过不同水平的X射线吸收鉴定的特征的受试者。 在第一次X辐射暴露之后，包含门静脉的屏蔽物放置在受试者和X辐射源之间。 X辐射通过门户指向对象。 在每种情况下，离开物体的X射线撞击在金属屏幕上，使其发射电子，并且电子撞击在荧光屏上，使其发光，在第一次和第二次曝光期间产生第一和第二叠加潜像 在射线照相元件。 使用处理器将潜像转换成可见的银图像，从而实现与被摄体的可识别特征相关的通过门户的X射线的目标瞄准。 处理器依赖于用于激活的放射线照相元件从850nm到1100nm的波长的红外光束的衰减，并且放射线照相元件的至少一个亲水胶体层含有具有波长范围内的折射率的粒子 850至1100nm，其不同于亲水胶体的至少0.2以产生能够衰减红外光束并激活处理器的镜面密度。
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公开(公告)号：US5989799A
公开(公告)日：1999-11-23
申请号：US99325
申请日：1998-06-18
申请人： Ann Verbeeck , Peter Verrept , Paul Callant , Koenraad Caron
发明人： Ann Verbeeck , Peter Verrept , Paul Callant , Koenraad Caron
CPC分类号： G03C1/0053 , G03C1/122 , G03C5/17 , G03C2200/03 , Y10S430/167
摘要： A radiographic screen/film combination or system has been provided comprising a duplitized film sandwiched between a pair of supporting or self-supporting X-ray intensifying screens, characterized in that i) said pair of supported or self-supporting X-ray intensifying screens essentially consists of luminescent phosphor particles emitting at least 50% and more preferably at least 80% of their emitted radiation in the wavelength range shorter than 380 nm, as e.g. a niobium and gadolinium doped, monoclinic M, yttriumtantalate (MYT) phosphor corresponding to formula IYTaO.sub.4 :Gd:Nb (I),ii) said film comprises {111} tabular silver halide grains rich in silver chloride, spectrally sensitive to irradiation in the said wavelength range shorter than 380 nm by the presence of at least one azacyanine dye as a spectral sensitizer.
摘要翻译： 已经提供了包括夹在一对支撑或自支撑X射线增强屏之间的双面胶片的射线照相屏/膜组合或系统，其特征在于i）所述一对支撑或自支撑X射线增强屏本质上 由发射荧光体颗粒的发射波长范围小于380nm的发射辐射的至少50％，更优选至少80％，例如 对应于式IYTaO4：Gd：Nb（I）的铌和钆掺杂的单斜晶M，钇钽酸盐（MYT）荧光体，ii）所述薄膜包含富含氯化银的{111}片状卤化银颗粒，对所述 通过存在至少一种氮杂菁染料作为光谱增感剂，波长范围短于380nm。
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