公开(公告)号：US5998802A

公开(公告)日：1999-12-07

申请号：US15116

申请日：1998-01-29

申请人： Luc Struye ,  Paul Leblans ,  Peter Willems

发明人： Luc Struye ,  Paul Leblans ,  Peter Willems

IPC分类号： G01T1/29 ,  G03B42/02

CPC分类号： G01T1/2014 ,  H04N5/32 ,  H04N5/3415

摘要： A method of obtaining an electrical representation of a radiation image by means of at least one CCD sensor. A stimulable phosphor plate, the area of which is divided into at least two different portions, is exposed to a radiation image. Each of the portions is stimulated by light guided from a light source, the light having a wavelength within the stimulating wavelength range of the phosphor on the plate and causing the phosphor plate to emit stimulated light. The stimulated light from each phosphor plate portion is guided to at least one two-dimensional CCD sensor kept in a static position relative to the phosphor plate portion, such that the CCD detects the stimulated light. The detected stimulated light is converted into an electrical representation of the plate portion, and the electrical representation of each of the different plate portions is combined to form an electrical representation of the radiation image. When using fiber optics a high readout efficiency can be obtained using a broad range of light sources in continuous or pulsed mode.

摘要翻译： 一种通过至少一个CCD传感器获得辐射图像的电表示的方法。 可激发的荧光体板，其区域被分成至少两个不同部分，暴露于辐射图像。 每个部分由光源引导的光刺激，该光在该板上的荧光体的刺激波长范围内具有波长并使荧光板发射受激光。 来自每个荧光板部分的​​受激光被引导到保持在相对于荧光板部分的​​静止位置的至少一个二维CCD传感器，使得CCD检测到被激发的光。 检测到的受激光被转换成板部分的电气表示，并且将每个不同板部分的电气表示组合以形成辐射图像的电表示。 当使用光纤时，可以使用广泛的连续或脉冲模式的光源获得高的读出效率。

公开(公告)号：US5630963A

公开(公告)日：1997-05-20

申请号：US654613

申请日：1996-05-29

申请人： Paul Leblans ,  Paul Lardon ,  Jean-Marie Dewanckele

发明人： Paul Leblans ,  Paul Lardon ,  Jean-Marie Dewanckele

IPC分类号： C09K11/02 ,  G21K4/00 ,  C09K11/61 ,  G01T1/10

CPC分类号： C09K11/025 ,  G21K4/00 ,  G21K2004/06 ,  G21K2004/08 ,  Y10T428/12667

摘要： A phosphor screen is provided comprising a satiblizer being an organic compound or an oligomeric or polymeric compound comprising moieties corresponding to the following general formula I: ##STR1## wherein: R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each independently represent a substituted or unsubstituted alkyl- or aryl group,R.sup.5 represents hydrogen or a substituted or unsibstituted alkyl group andZ represents the atoms necessary to form a substituted or unsubstituted 5 to 8 membered ring.

摘要翻译： 提供了荧光屏，其包含作为有机化合物的饱和器或包含对应于以下通式I的部分的低聚或聚合化合物：其中：R 1，R 2，R 3和R 4各自独立地表示取代或未取代的烷基 - 或芳基，R 5表示氢或取代或未取代的烷基，Z表示形成取代或未取代的5至8元环所必需的原子。

公开(公告)号：US5422220A

公开(公告)日：1995-06-06

申请号：US243516

申请日：1994-05-16

申请人： Paul Leblans ,  Albert D. Adriaensens ,  Melvin Tecotzky ,  Jan A. Van den Bogaert

发明人： Paul Leblans ,  Albert D. Adriaensens ,  Melvin Tecotzky ,  Jan A. Van den Bogaert

IPC分类号： C09K11/00 ,  C09K11/61 ,  C09K11/77 ,  C09K11/85 ,  G21K4/00 ,  G03C5/16

CPC分类号： G21K4/00 ,  C09K11/7791 ,  G21K2004/06 ,  Y10S430/146 ,  Y10S430/167 ,  Y10S430/168

摘要： A photostimulable phosphor of which the emission intensity at the stimulation wavelength of 550 nm is higher than the emission intensity at the stimulation wavelength of 600 nm, characterized in that said phosphor is a divalent europium activated barium fluorobromide containing as codopant samarium, and wherein the terminology barium fluorobromide stands for an empirical formula wherein (1) a minor part of the barium (less than 50 atom %) is replaced optionally by at least one metal selected from the group consisting of a monovalent alkali metal, a divalent alkaline earth metal other than barium, and a trivalent metal selected from the group consisting of Al, Ga, In, Tl, Sb, Bi, Y, and a rare earth metal selected from the group consisting of Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, (2) a minor part (less than 50 atom %) of the bromine is replaced by chlorine, and/or iodine, and (3) wherein fluorine is present stoichiometrically in a larger atom % than bromine taken alone or bromine combined with chlorine and/or iodine.

摘要翻译： 激发波长为550nm的发光强度高于600nm的刺激波长下的发光强度的光激发性荧光体，其特征在于，所述荧光体是含有共价掺杂钐的二价铕活化的氟化溴化钡，其特征在于， 氟溴化钡代表经验式，其中（1）少部分钡（小于50原子％）被任选地由至少一种选自以下的金属替代：一价碱金属，除二价碱金属以外的二价碱土金属 钡和选自Al，Ga，In，Tl，Sb，Bi，Y和选自Ce，Pr，Nd，Gd，Tb，Dy，Ho的稀土金属的三价金属 ，Er，Tm，Yb和Lu，（2）溴的少量部分（小于50原子％）被氯和/或碘取代，（3）其中氟以比原子％更大的原子比存在化学计量比 溴或溴 ne与氯和/或碘结合。

公开(公告)号：US20090242836A1

公开(公告)日：2009-10-01

申请号：US12327187

申请日：2008-12-03

申请人： Jean-Pierre Tahon ,  Jens Lenaerts ,  Laszlo Vincze ,  Geert Silversmit ,  Paul Leblans

发明人： Jean-Pierre Tahon ,  Jens Lenaerts ,  Laszlo Vincze ,  Geert Silversmit ,  Paul Leblans

IPC分类号： C09K11/77 ,  C23C16/00

CPC分类号： G21K4/00 ,  C09K11/7733

摘要： In a method of preparing a phosphor or scintillator layer to become deposited on a support, a vapor depositing step is applied from a crucible unit by heating as phosphor precursor raw materials present in said crucible, a Cs(X,X′) matrix compound and an activator or dopant precursor compound, wherein said crucible unit comprises at least a bottom and surrounding side walls as a container for phosphor precursor raw materials present in said crucible in liquefied form after heating said crucible, and wherein said Cs(X,X′) matrix compound has a higher vapor pressure than said activator or dopant precursor compound, said method comprising a step of providing said activator or dopant compound in form of a precursor raw material represented by the formula CsxEuyX′(x+αy), wherein x, y and α are integers, wherein x/y is more than 0.25 and wherein α is at least 2, wherein X represents Br and wherein X′ stands for F, Cl, Br, I or a combination thereof; followed by an annealing step after a vapor depositing step, provided that said annealing step proceeds in an ambient atmosphere after cooling said phosphor or scintillator layer, deposited on said support; and wherein as a result a binderless needle-shaped Cs(X,X′):Eu phosphor or scintillator layer becomes provided, having on top of its needle-shaped phosphors, aligned in parallel, an average ratio of divalent to trivalent europium dopant of more than 1:1; wherein said average ratio decreases to an extent of less than 2% per hour, while being exposed to X-rays having an energy in the range from 1 to 100 keV.

摘要翻译： 在制备荧光体或闪烁体层以沉积在载体上的方法中，通过加热坩埚单元中的荧光体前体原料，Cs（X，X'）基质化合物和 活化剂或掺杂剂前体化合物，其中所述坩埚单元至少包括作为用于在加热所述坩埚之后以液化形式存在于所述坩埚中的荧光体前体原料的容器的底部和周围侧壁，并且其中所述Cs（X，X'） 基质化合物具有比所述活化剂或掺杂剂前体化合物更高的蒸气压，所述方法包括以由式CsxEuyX'（x + alphay）表示的前体原料的形式提供所述活化剂或掺杂剂化合物的步骤，其中x，y 并且α是整数，其中x / y大于0.25，并且其中α是至少2，其中X表示Br，并且其中X'代表F，Cl，Br，I或它们的组合; 然后在气相沉积步骤之后进行退火步骤，只要所述退火步骤在冷却所述荧光体或闪烁体层之后在环境气氛中进行，沉积在所述载体上; 并且其中结果是提供无粘合剂的针状Cs（X，X'）：Eu荧光体或闪烁体层，其在其针状荧光体的顶部平行排列，二价至三价铕掺杂剂的平均比例 超过1：1; 其中所述平均比例降低到小于2％/小时的程度，同时暴露于能量在1至100keV范围内的X射线。

公开(公告)号：US07351442B2

公开(公告)日：2008-04-01

申请号：US11015504

申请日：2004-12-17

申请人： Jean-Pierre Tahon ,  Johan Lamotte ,  Paul Leblans

发明人： Jean-Pierre Tahon ,  Johan Lamotte ,  Paul Leblans

IPC分类号： B05D5/06

CPC分类号： G21K4/00 ,  C09K11/7733 ,  G21K2004/06

摘要： A method for producing CsX:Eu stimulable phosphors and screens or panels provided with said phosphors as powder phosphors or vapor deposited needle-shaped phosphors suitable for use in image forming methods for recording and reproducing images of objects made by high energy radiation, wherein said CsX:Eu stimulable phosphors are essentially free from oxygen in their crystal structure, and wherein X represents a halide selected from the group consisting of Br, Cl and combinations thereof, and wherein the method further comprises the steps of mixing CsX with a compound or combinations of precursor compounds having as a composition CsxEuyX′x+αy, wherein the ratio of x to y exceeds a value of 0.25, wherein α≧2 and wherein X′ is a halide selected from the group consisting of Cl, Br and I and combinations thereof; heating said mixture at a temperature above 450° C.; cooling said mixture, and optionally annealing and recovering said CsX:Eu phosphor.

摘要翻译： 一种生产CsX：Eu可激发的荧光体和屏幕或面板的方法，所述荧光体具有所述磷光体作为粉末磷光体或气相沉积的针状磷光体，适用于用于记录和再现由高能量辐射制成的物体的图像的图像形成方法，其中所述CsX ：Eu可激发的荧光体在其晶体结构中基本上不含氧，并且其中X表示选自Br，Cl及其组合的卤化物，并且其中所述方法还包括以下步骤：将CsX与化合物或 作为组合物的前体化合物，其中x与y的比例超过0.25，其中x，y，x，y，x， 其中α> = 2，并且其中X'是选自Cl，Br和I的卤化物及其组合; 在高于450℃的温度下加热所述混合物; 冷却所述混合物，并且任选地退火和回收所述CsX：Eu荧光体。

公开(公告)号：US20080035839A1

公开(公告)日：2008-02-14

申请号：US11825538

申请日：2007-07-06

申请人： Luc Struye ,  Paul Leblans ,  Jean-Pierre Tahon

发明人： Luc Struye ,  Paul Leblans ,  Jean-Pierre Tahon

IPC分类号： G01T1/105

CPC分类号： G01T1/2014

摘要： In a method of reading out energy stored in a CsBr:Eu stimulable phosphor plate, having been exposed to high energy radiation, said method is performed in two steps: a first read-out step while irradiating said phosphor plate with stimulating energy from an infrared radiation stimulation source, followed by a second read-out step, wherein said second read-out step proceeds while providing stimulation radiation having a higher energy than stimulation radiation energy provided during said first read-out step.

摘要翻译： 在一种已经暴露于高能量辐射的CsBr：Eu可激发的荧光体板中读出储存的能量的方法，所述方法分两步进行：第一读出步骤，同时用来自红外线的刺激能量照射所述荧光板 辐射刺激源，随后是第二读出步骤，其中所述第二读出步骤继续进行，同时提供具有比在所述第一读出步骤期间提供的刺激辐射能量更高的能量的刺激辐射。

公开(公告)号：US20070246663A1

公开(公告)日：2007-10-25

申请号：US11716974

申请日：2007-03-12

申请人： Jean-Pierre Tahon ,  Paul Leblans ,  Carlo Uyttendaele

发明人： Jean-Pierre Tahon ,  Paul Leblans ,  Carlo Uyttendaele

IPC分类号： H05B33/00

CPC分类号： G21K4/00

摘要： In a radiation image phosphor or scintillator panel having as a layer arrangement of consecutive layers an anodized aluminum support layer, wherein chromium is present in said aluminum layer and/or said anodized layer, a phosphor or scintillator layer comprising needle-shaped phosphor or scintillator crystals, covered with a protective layer, in favor of less corrosion and acceptable adhesion between support layer and storage phosphor or scintillator layer, the said anodized aluminum support layer has a ratio of average surface roughness ‘Ra’ versus anodized layer thickness ‘t’ of at least 0.001; wherein ‘Ra’ is in the range from 0.01 μm to less than 0.30 μm and wherein said anodized layer has a thickness in the range from 1 μm to 10 μm.

摘要翻译： 在具有连续层的层布置的辐射图像磷光体或闪烁体面板中，阳极氧化的铝支撑层，其中铬存在于所述铝层和/或所述阳极氧化层中，包含针状荧光体或闪烁体晶体的荧光体或闪烁体层 ，覆盖有保护层，有利于较少的腐蚀和支撑层与储存荧光体或闪烁体层之间可接受的粘附，所述阳极氧化铝支撑层具有平均表面粗糙度“R”a“ 阳极氧化层厚度t'至少为0.001; 其中“R”a“在0.01μm至小于0.30μm的范围内，并且其中所述阳极氧化层的厚度在1μm至10μm的范围内。

公开(公告)号：US20070246662A1

公开(公告)日：2007-10-25

申请号：US11716950

申请日：2007-03-12

申请人： Jean-Pierre Tahon ,  Paul Leblans ,  Carlo Uyttendaele ,  Alexander Williamson

发明人： Jean-Pierre Tahon ,  Paul Leblans ,  Carlo Uyttendaele ,  Alexander Williamson

IPC分类号： H05B33/00

CPC分类号： G03B42/02 ,  C09K11/7733 ,  G21K4/00 ,  G21K2004/04

摘要： In favor of adhesion a radiation image phosphor or scintillator panel comprises as an arrangement of layers, in consecutive order, an anodized aluminum support, a precoat layer and a phosphor or scintillator layer comprising needle-shaped phosphor or scintillator crystals, wherein said precoat layer has a thickness in the range from 4 μm to 15 μm when consisting of an organic polymer selected from the group consisting of cellyte, poly-acrylate, poly-methyl-methacrylate, poly-methylacrylate, polystyrene, polystyrene-acrylonitrile, polyurethane, hexafunctional polyacrylate, poly-vinylidene-difluoride, epoxy functionalized polymers or wherein said precoat layer has a thickness in the range from 1 μm to less than 5 μm when consisting of an organo-silane based polymer.

摘要翻译： 有利于粘附，辐射图像荧光体或闪烁体面板以连续的顺序包括阳极氧化铝载体，预涂层和包含针状荧光体或闪烁体晶体的荧光体或闪烁体层作为层的排列，其中所述预涂层具有 当由选自纤维素，聚丙烯酸酯，聚甲基丙烯酸甲酯，聚甲基丙烯酸酯，聚苯乙烯，聚苯乙烯 - 丙烯腈，聚氨酯，六官能聚丙烯酸酯的有机聚合物组成时，厚度在4μm至15μm的范围内， 聚偏亚乙烯基二氟化物，环氧官能化聚合物，或者当由有机硅烷基聚合物组成时，其中所述预涂层的厚度范围为1μm至小于5μm。

公开(公告)号：US20070075270A1

公开(公告)日：2007-04-05

申请号：US11511923

申请日：2006-08-29

申请人： Paul Leblans ,  Ilse Mans ,  Jean-Pierre Tahon ,  Ludo Neyens

发明人： Paul Leblans ,  Ilse Mans ,  Jean-Pierre Tahon ,  Ludo Neyens

IPC分类号： G03B42/08

CPC分类号： G21K4/00 ,  C09K11/7733

摘要： In a photostimulable storage phosphor screen or panel wherein said screen comprises storage phosphor particles dispersed in a binder and wherein said particles have a particle size distribution having a d99 which is not more than 15 μm, said d99 expressing a grain size limit above which not more than 1% by weight of phosphor powder particles is present in said phosphor powder, its structure noise parameter DQE2rel exceeds a value of 0.70 and a ratio of d99 (expressed in μm) and DQE2rel is not more than 25:1, wherein DQE2rel is the ratio of the DQE2 obtained at a dose of 22 mR to the DQE2 obtained at a dose of 3 mR, as expressed in formula (I) DQE2rel=DQE2(22 mR))/DQE2(3 mR)  (I) which is representative for an amount of screen-structure noise produced by said screen or panel in the complete spatial frequency range.

摘要翻译： 在可光激励的存储荧光屏或面板中，其中所述屏幕包括分散在粘合剂中的储存磷光体颗粒，并且其中所述颗粒的粒度分布具有不大于15μm的粒子，所述d _{99 ，其中，在所述荧光粉中存在不超过1重量％的荧光体粉末颗粒的晶粒尺寸极限，其结构噪声参数DQE2 超过0.70的值， d 99％（以mum表示）和DQE2 的比率不大于25:1，其中DQE2 是 DQE2以22mR的剂量获得，以3mR的剂量获得，如式（I）所示。<？in-line-formula description =“In-line Formulas”end =“lead”？> DQE 2 rel = DQE 2（22 mR））/ DQE 2（3 mR）（I）<？in-line-formula description =“In-line Formulas”end =“tail”？> 整个屏幕或面板产生的结构噪声 空间频率范围。}

公开(公告)号：US07199379B2

公开(公告)日：2007-04-03

申请号：US10609145

申请日：2003-06-27

申请人： Paul Leblans ,  Toshio Takabayashi

发明人： Paul Leblans ,  Toshio Takabayashi

IPC分类号： H05B33/00

CPC分类号： G21K4/00 ,  C09K11/7733

摘要： An image storage screen or panel, suitable for use in applications related with computed radiography, has been disclosed, wherein said screen or panel comprises a binderless needle-shaped stimulable (storage) phosphor and a substrate, characterized in that said substrate has a surface roughness of less than 2 μm and a reflectivity of more than 80%.

摘要翻译： 已经公开了适用于与计算机X射线摄影有关的应用的图像存储屏幕或面板，其中所述屏幕或面板包括无粘合剂针状可刺激（储存）荧光体和基底，其特征在于，所述基底具有表面粗糙度 小于2mum，反射率大于80％。