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公开(公告)号：US07626389B2
公开(公告)日：2009-12-01
申请号：US11911831
申请日：2006-03-28
IPC分类号： G01V3/00
CPC分类号： G01R33/481 , A61B6/037 , A61B6/4417 , G01R33/28 , G01R33/5673 , G06T11/00
摘要： In a combined scanner, a main magnet (20) and magnetic field gradient coils (28) housed in or on a scanner housing (12, 18) acquires spatially encoded magnetic resonances in an imaging region (14). Solid state radiation detectors (50, 50′, 50″) disposed in or on the scanner housing are arranged to detect gamma rays emitted from the imaging region. Time-of-flight positron emission tomography (TOF-PET) processing (52, 54, 58, 60, 62) determines localized lines of response based on (i) locations of substantially simultaneous gamma ray detections output by the radiation detectors and (ii) a time interval between said substantially simultaneous gamma ray detections. TOF-PET reconstruction processing (64) reconstructs the localized lines of response to produce a TOF-PET image. Magnetic resonance imaging (MRI) reconstruction processing (44) reconstructs the acquired magnetic resonances to produce an MRI image.
摘要翻译： 在组合扫描器中，容纳在扫描仪外壳（12,18）中或扫描仪外壳（12,18）上的主磁体（20）和磁场梯度线圈（28）在成像区域（14）中获取空间编码的磁共振。 布置在扫描仪外壳中或扫描仪外壳上的固体辐射检测器（50,50'，50“）布置成用于检测从成像区域发射的伽马射线。 飞行时间正电子发射断层扫描（TOF-PET）处理（52,54,58,60,62）基于（i）由辐射探测器输出的基本上同时的伽马射线检测的位置确定局部的响应线， ）所述基本上同时的伽马射线检测之间的时间间隔。 TOF-PET重建处理（64）重建局部应答线以产生TOF-PET图像。 磁共振成像（MRI）重建处理（44）重建获取的磁共振以产生MRI图像。
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公开(公告)号：US06583418B1
公开(公告)日：2003-06-24
申请号：US09483977
申请日：2000-01-18
IPC分类号： G01T124
CPC分类号： G01T1/2928
摘要： An image receiving device for an X-ray detector including a carrier plate having at least one rounded corner, a sensor arranged on the carrier plate and having at least one side proximate the rounded corner, and signal lines extending from the side of the sensor proximate the rounded corner. The signal lines are connected to the carrier plate and define an acute angle with the side of the sensor proximate the rounded corner. The sensor is structured and arranged such that an image is receivable by an entire surface thereof.
摘要翻译： 一种用于X射线检测器的图像接收装置，其包括具有至少一个圆角的承载板，布置在承载板上并具有靠近圆角的至少一个侧面的传感器，以及从传感器侧面延伸的信号线 圆角。 信号线连接到承载板并且在靠近圆角处与传感器的侧面形成锐角。 传感器的结构和布置使得图像能够被其整个表面接收。
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公开(公告)号：US5666022A
公开(公告)日：1997-09-09
申请号：US726900
申请日：1996-10-07
申请人： Jacobus A. J. M. Deckers , Theodorus H. Weekers , Albert Manenschijn , Franciscus M. M. Snijkers , Petrus A. M. Van Der Heide
发明人： Jacobus A. J. M. Deckers , Theodorus H. Weekers , Albert Manenschijn , Franciscus M. M. Snijkers , Petrus A. M. Van Der Heide
CPC分类号： H01J9/047 , H01J1/28 , H01J2201/2892
摘要： A method of manufacturing a dispenser cathode, in which method a powder of a refractory metal and a scandium-containing powder are mixed with each other and pressed to form a cathode body. According to the invention at least both these powders and a suitable binder are mixed with each other to form a homogeneous suspension prior to the pressing operation and the whole mixture is subsequently cured and ground to granules having a larger average size and hence a greater fluidity than the grains of the starting powders. Subsequently the granules thus obtained are pressed to form a cathode body (2). The invention leads to a better processibility and greater convenience of handling of the starting powders so that notably very fine starting powders can be used, which results in cathodes (1) having a better recovery after ion bombardment as compared with cathodes manufactured in conventional manners which are necessarily based on relatively coarse powders.
摘要翻译： 一种制造分配器阴极的方法，其中将难熔金属和含钪粉末的粉末彼此混合并压制以形成阴极体。 根据本发明，至少将这两种粉末和合适的粘合剂彼此混合以在压制操作之前形成均匀的悬浮液，然后将整个混合物固化并研磨成具有较大平均尺寸的颗粒，因此流动性大于 起始粉末的颗粒。 随后将由此获得的颗粒压制以形成阴极体（2）。 本发明导致更好的加工性和更好的处理起始粉末的便利性，使得可以使用显着非常细的起始粉末，这导致与以常规方法制造的阴极相比，在离子轰击之后具有更好恢复的阴极（1） 必须基于较粗的粉末。
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公开(公告)号：US5407633A
公开(公告)日：1995-04-18
申请号：US214887
申请日：1994-03-15
CPC分类号： B22F9/04 , C22C27/04 , B22F2009/041
摘要： Method of manufacturing a dispenser cathode, in which method tungsten and a scandium-containing material are mechanically alloyed and the product thus formed is pressed into a cathode body. The cathode body is further provided with a barium-containing component. In the mechanical alloying process the tungsten is highly deformed and the scandium-containing material is mixed with the tungsten so as to be very finely distributed therein, so that an improved dispensation of scandium and hence an improved recovery after ion bombardment of the final cathode is attained.
摘要翻译： 制造分配器阴极的方法，其中钨和含钪材料机械合金化，并将由此形成的产品压入阴极体。 阴极体还含有含钡成分。 在机械合金化过程中，钨是高度变形的，并且含钪材料与钨混合以便非常精细地分布在其中，从而改善了钪的分配，并因此改善了最终阴极离子轰击后的回收率。 达到了
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公开(公告)号：US20080284428A1
公开(公告)日：2008-11-20
申请号：US11911831
申请日：2006-03-28
CPC分类号： G01R33/481 , A61B6/037 , A61B6/4417 , G01R33/28 , G01R33/5673 , G06T11/00
摘要： In a combined scanner, a main magnet (20) and magnetic field gradient coils (28) housed in or on a scanner housing (12, 18) acquires spatially encoded magnetic resonances in an imaging region (14). Solid state radiation detectors (50, 50′, 50″) disposed in or on the scanner housing are arranged to detect gamma rays emitted from the imaging region. Time-of-flight positron emission tomography (TOF-PET) processing (52, 54, 58, 60, 62) determines localized lines of response based on (i) locations of substantially simultaneous gamma ray detections output by the radiation detectors and (ii) a time interval between said substantially simultaneous gamma ray detections. TOF-PET reconstruction processing (64) reconstructs the localized lines of response to produce a TOF-PET image. Magnetic resonance imaging (MRI) reconstruction processing (44) reconstructs the acquired magnetic resonances to produce an MRI image.
摘要翻译： 在组合扫描器中，容纳在扫描仪外壳（12,18）中或扫描仪外壳（12,18）上的主磁体（20）和磁场梯度线圈（28）在成像区域（14）中获取空间编码的磁共振。 布置在扫描仪外壳中或扫描仪外壳上的固体辐射检测器（50,50'，50“）布置成用于检测从成像区域发射的伽马射线。 飞行时间正电子发射断层扫描（TOF-PET）处理（52,54,58,60,62）基于（i）由辐射探测器输出的基本上同时的伽马射线检测的位置确定局部的响应线， ）所述基本上同时的伽马射线检测之间的时间间隔。 TOF-PET重建处理（64）重建局部应答线以产生TOF-PET图像。 磁共振成像（MRI）重建处理（44）重建获取的磁共振以产生MRI图像。
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公开(公告)号：US5518520A
公开(公告)日：1996-05-21
申请号：US399304
申请日：1995-03-06
CPC分类号： B22F9/04 , C22C27/04 , B22F2009/041
摘要： Method of manufacturing a dispenser cathode, in which method tungsten and a scandium-containing material are mechanically alloyed and the product thus formed is pressed into a cathode body. The cathode body is further provided with a barium-containing component. In the mechanical alloying process the tungsten is highly deformed and the scandium-containing material is mixed with the tungsten so as to be very finely distributed therein, so that an improved dispensation of scandium and hence an improved recovery after ion bombardment of the final cathode is attained.
摘要翻译： 制造分配器阴极的方法，其中钨和含钪材料机械合金化，并将由此形成的产品压入阴极体。 阴极体还含有含钡成分。 在机械合金化过程中，钨是高度变形的，并且含钪材料与钨混合以便非常精细地分布在其中，从而改善了钪的分配，并因此改善了最终阴极离子轰击后的回收率。 达到了
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