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公开(公告)号：EP0277041A3
公开(公告)日：1988-10-05
申请号：EP88300801
申请日：1988-01-29
发明人： Yokota, Kazuto c/o Patent Division , Saito, Akihisa c/o Patent Division , Sawada, Tak shi c/o Patent Division
IPC分类号： G21K04/00
摘要： Disclosed is speed compensated intensifying screen which has a layer of phosphor and a protective layer superposed sequentially on a substrate and further has a light-absorbing layer capable of absorbing part of the light emitted from the layer of phosphor superposed thereon. By this light-absorbing layer, a plurality of regions differing in speed are formed within the layer of phosphor. In the plurality of regions, the speed is continuously changed across the borderlines between the regions. This continuous change in density across the borderlines prevents the borderlines between the regions of speed from appearing as line patterns in the produced X-ray radiograph. The intensifying screen of the grade adapted for X-ray radiography of the chest effects proper speed correction by incorporating therein a plurality of regions of speed formed so as to conform to the various internal organs in the chest such as the upper and lower mediastinums, the hilums of the lung, and the lungfields. The intensifying screen of the grade adapted for X-ray radiography of the head effects proper speed correction by incorporating therein a plurality of regions of speed formed so as to conform to the various parts of the head from the central part through the portion near the scalp. The intensifying screen of the grade adapted for X-ray radiography of the upper and lower jaws and the peripheries thereof effects proper speed correction such as to prevent the shadow of the backbone from giving rise to portion deficient in radiographic density.
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公开(公告)号：EP0137453A3
公开(公告)日：1988-03-30
申请号：EP84111894
申请日：1984-10-04
CPC分类号： G03C5/16 , G21K4/00 , H04N5/3205 , H05G1/60
摘要： X-ray energy difference images are obtained simut- taneously by exposing a body to a broad energy spectrum x-ray beam and using a planar radiographic film having photosensitive emulsions facing in opposite directions between front and rear x-ray intensifying screens. The front screen, on which the polyenergetic beam emerging fron the body is incident, contains an element having a K-absorption edge so the front screen is excited to luminesces by predominantly higher energy x-ray photons and the rear screen is excited by a higher fraction of lower energy photons compared to the front screen. Grids having alternate light-opaque and light-transmissive lines can be disposed between the screens to encode or differentiate the images. Alternatively the radiographic films can be joined at one of their edges to form a pocket or a hinge and a light-opaque insert located in the pocket or between the films to accentuate the differences in x-ray energies. Alternatively the film package is laminated with a double-sided reflective sheet in the middle and a light-opaque coating on each reflective surface. In addition a shadow of a marker is formed on the film emulsion to aid in matching congruent picture elements when reading the developed films. Notches in the edges of the films and the insert can serve as a code for identifying the type of screens which can be used.
摘要翻译： 通过将身体暴露于宽能谱X射线束并使用在前后X射线增强屏之间具有面向相反方向的感光乳剂的平面射线照相胶片来同时获得X射线能量差图像。 其上出现在身体上的多能束入射的前屏幕包含具有K吸收边缘的元件，使得前屏幕被主要由较高能量的X射线光子激发而发光，并且后屏幕被较高的 与前屏相比，低能光子的分数。 具有交替的不透明和透光线的网格可以布置在屏幕之间以对图像进行编码或区分。 或者，射线照相胶片可以在它们的一个边缘处连接以形成口袋或铰链，以及位于袋中或膜之间的不透光的插入物，以强调x射线能量的差异。 或者，膜包装在中间层叠有双面反射片，并且在每个反射表面上层叠不透明的涂层。 此外，在胶片乳剂上形成标记的阴影，以帮助在读取显影的胶片时匹配一致的图像元素。 胶片和插入物的边缘上的凹口可以用作识别可以使用的屏幕的类型的代码。
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公开(公告)号：EP0196675A3
公开(公告)日：1988-03-16
申请号：EP86104557
申请日：1986-04-03
IPC分类号： G21K04/00
CPC分类号： G21K4/00
摘要： A radiation image storage panel comprising a support, a phosphor layer which comprises a binder and a stimulable phosphor dispersed therein and a protective film, superposed in this order, characterized in that said protective film comprises polyethylene terephthalate, and has the longitudinal strength and the lateral strength equal to each other or in a difference therebetween of not more than 10%, the value being determined based on the larger strength.
摘要翻译： 1。一种放射线图像存储面板，其特征在于，包括支撑体，包含粘合剂和分散在其中的可激发荧光体的荧光体层以及保护膜，该保护膜依次叠置，其特征在于，所述保护膜包括聚对苯二甲酸乙二醇酯并且具有纵向强度和横向 强度彼此相等或相差不超过10％，该值基于较大的强度来确定。
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34.发明公开
公开(公告)号：EP0200017A3
公开(公告)日：1988-02-10
申请号：EP86104503
申请日：1986-04-02
CPC分类号： G21K4/00 , C09K11/7435 , G01T1/2012
摘要： A bismuth activated alkali metal halide phosphor having the formula (I):
in which M' is at least one alkali metal selected from the group consisting of Rb and Cs; X is at least one Ihalogen selected from the group consisting of Ct, Br and I; and x is a number satisfying the condition , of 0-
公开(公告)号：EP0209358A3
公开(公告)日：1987-10-07
申请号：EP86305438
申请日：1986-07-15
发明人： Kano, Akiko , Tsuchino, Hisanori , Amitani, Koji , Shimada, Fumio
IPC分类号： G21K04/00
CPC分类号： G21K4/00
摘要： Disclosed is a radiation image storage panel having at least one stimulable phosphor layer on a support and a protective layer provided on the stimulable phosphor layer, wherein the protective layer comprises at least two layers of which regains under a relative humidity of 90% on a sorption isotherm at 25°C are different by 0.5% or more. According to this invention, a radiation image storage panel which has good humidity resistance and can be used for a long term is obtained.
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公开(公告)号：EP0167972A3
公开(公告)日：1987-10-07
申请号：EP85108198
申请日：1985-07-02
IPC分类号： G21K04/00
CPC分类号： G21K4/00 , Y10S250/909
摘要： A cleaning apparatus for removing dust sticking to the surface of a stimulable phosphor sheet used for recording a radiation image comprises first sheet conveying rolls for conveying the stimulable phosphor sheet, and a rotatable cleaning roll provided with a cleaning member for catching dust around the circumferential surface and positioned for contact with the surface of the stimulable phosphor sheet conveyed by the first sheet conveying rolls The apparatus also comprises a plurality of guide rolls for guiding the stimulable phosphor sheet so that it contacts in the bent form with the circumferential surface of the cleaning roll, and second sheet conveying rolls for conveying the stimulable phosphor sheet coming from the cleaning roll.
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公开(公告)号：EP0167170A3
公开(公告)日：1987-09-30
申请号：EP85108306
申请日：1985-07-04
CPC分类号： G21K4/00 , C09K11/025 , Y10S516/06
摘要： In a radiation image storage panel comprising a support and a phosphor layer which comprises a binder and a stimulable phosphor dispersed therein and is colored with a colorant, the improvement which comprises said colorant is a pigment capable of absorbing a portion of stimulating rays for the stimulable phosphor and said phosphor layer contains a dispersing agent of at least one fatty acid ester selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters and polyoxyethylene fatty acid esters.
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公开(公告)号：EP0150863A3
公开(公告)日：1987-04-08
申请号：EP85101072
申请日：1985-02-01
IPC分类号： G21K04/00
摘要： A scintillation converter for neutron radiography is described, comprising a composition formed of components (A) 100 parts by weight of an olefin rubber made mainly of ethylene and propylene, (B) from 100 to 400 parts by weight of at least one inorganic compound selected from the group consisting of inorganic boron compounds and inorganic lithium compounds, and (C) from 100 to 600 parts by weight of a zinc sulfide-base fluorescent material. This scintillation converter is not only superior in radiation-sensitive performance, but also has high elasticity and superior abrasion resistance.
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39.发明公开
公开(公告)号：EP0173352A3
公开(公告)日：1986-12-10
申请号：EP85111030
申请日：1985-09-02
发明人： Yamazaki, Hisashi Fuji Photo Film Co., Ltd. , Kitada, Akira Fuji Photo Film Co., Ltd. , Yamazaki, Kikuo Fuji Photo Film Co., Ltd.
IPC分类号： G21K04/00
CPC分类号： G21K4/00
摘要： A radiation image storage panel comprising a support and a phosphor layer provided thereon which comprises a binder and a stimulable phosphor dispersed therein, characterized in that said phosphor layer consists essentially of one part on the support side which contains the stimulable phosphor and the other part on the panel surface side which does not substantially contain the stimulable phosphor. Processes for the preparation of said radiation image storage panel are also disclosed.
摘要翻译： 1.一种放射线图像存储面板，其特征在于，在支撑体上设置有荧光体层，该荧光体层含有粘合剂和分散在其中的可激励荧光体，其特征在于，所述荧光体层基本上由载体侧的一部分构成，该部分含有可激励的荧光体， 基本上不包含可激励荧光体的面板表面侧。 还公开了用于制备所述辐射图像存储面板的过程。
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公开(公告)号：EP0178592A3
公开(公告)日：1986-11-20
申请号：EP85112858
申请日：1985-10-10
申请人： KASEI OPTONIX, LTD.
发明人： Aoki, Yuji , Horiuchi, Hidenaga , Umemoto, Akio , Miura, Norio
IPC分类号： G21K04/00
摘要： An intensifying screen comprising a support, a fluorescent layer on the support and a protective layer on the fluorescent layer, wherein the fluorescent layer is composed essentially of a blue emitting phosphor, and at least one of the fluorescent and protective layers is colored with a colorant having the main peak of the absorption spectrum in a wave length region of from 400 to 600 nm.
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