公开(公告)号：US5182479A

公开(公告)日：1993-01-26

申请号：US658792

申请日：1991-02-07

申请人： Frank P. Behagel ,  Tiemen Poorter ,  Petrus A. C. M. Nuijten

发明人： Frank P. Behagel ,  Tiemen Poorter ,  Petrus A. C. M. Nuijten

IPC分类号： H03K17/0812 ,  H03K17/687

CPC分类号： H03K17/6872 ,  H03K17/08122

摘要： A gate circuit includes an N-channel and a P-channel insulated gate field-effect transistor whose parallel-connected drain-source paths constitute an analog signal gate and a control circuit, connected to the respective gate electrodes, to turn on and/or turn off the two field-effect transistors. In order to handle signals whose voltage value is higher than the maximum permissible drain-source voltage in the on-state of the N-channel field-effect transistor, means are provided, for turning on the N-channel field-effect transistor at least at a drain-source voltage below a predetermined value. In an embodiment of the invention the means include delay means coupled to the control circuit for turning on the N-channel field-effect transistor with a delay relative to the P-channel field-effect transistor. In another embodiment of the invention the means include switching means arranged in series with the analog signal gate, for temporarily connecting the signal gate to at least one auxiliary voltage.

摘要翻译： 栅极电路包括N沟道和P沟道绝缘栅场效应晶体管，其并联连接的漏极 - 源极路径构成模拟信号栅极和连接到各个栅电极的控制电路，以导通和/或 关闭两个场效应晶体管。 为了处理电压值高于N沟道场效应晶体管的导通状态下的最大允许漏源电压的信号，提供了至少用于接通N沟道场效应晶体管的装置 在低于预定值的漏极 - 源极电压下。 在本发明的实施例中，装置包括耦合到控制电路的延迟装置，用于以相对于P沟道场效应晶体管的延迟来导通N沟道场效应晶体管。 在本发明的另一实施例中，装置包括与模拟信号门串联设置的开关装置，用于将信号门临时连接到至少一个辅助电压。

公开(公告)号：US20070211858A1

公开(公告)日：2007-09-13

申请号：US11570604

申请日：2005-06-09

申请人： Anthony Franklin ,  Martin Powell ,  Michael Overdick ,  Augusto Nascetti ,  Walter Ruetten ,  Tiemen Poorter ,  Lex Alving

发明人： Anthony Franklin ,  Martin Powell ,  Michael Overdick ,  Augusto Nascetti ,  Walter Ruetten ,  Tiemen Poorter ,  Lex Alving

IPC分类号： G01T1/02 ,  H01L27/146

CPC分类号： H01L27/14658 ,  H01L27/14676

摘要： An Y-ray detector apparatus comprises an array of detector pixels arranged into a plurality of sub-arrays. The pixels in each sub-array share a common dose sensing output provided to a dose sensing output conductor which extends to a periphery of the pixel array. The dose sensing output conductor for one sub-array of pixels passes through the area occupied by another sub-array of pixels, which can lead to unwanted cross talk. The invention provides a plurality of additional screening electrodes, with a screening electrode substantially adjacent the dose sensing output conductor for each sub-array of pixels. These screening electrodes reduce cross talk between the dose sensing output and other pixel electrodes. In another arrangement, each pixel further comprises a pixel electrode for each pixel formed at an upper region of the array, and the dose sensing output conductors are formed at a lower regon of the array. An intermediate conductor layer is then provided which overlaps the dose sensing output conductors for other sub-arrays of pixels and which pass through the area occupied by the sub-array of pixels.

摘要翻译： Y射线检测器装置包括布置成多个子阵列的检测器像素的阵列。 每个子阵列中的像素共享提供给延伸到像素阵列的周边的剂量感测输出导体的公共剂量感测输出。 用于一个子像素阵列的剂量感测输出导体穿过由另一子像素阵列占据的区域，这可能导致不想要的串扰。 本发明提供了多个附加的屏蔽电极，其中每个子像素阵列具有与剂量感测输出导体基本相邻的屏蔽电极。 这些筛选电极减少剂量感测输出和其他像素电极之间的串扰。 在另一种布置中，每个像素还包括用于形成在阵列的上部区域的每个像素的像素电极，并且剂量感测输出导体形成在阵列的较低离子处。 然后提供中间导体层，其与用于其他子像素阵列的剂量感测输出导体重叠，并且穿过由像素子阵列占据的区域。

公开(公告)号：US5038326A

公开(公告)日：1991-08-06

申请号：US617306

申请日：1990-11-19

申请人： Cornelis D. Hartgring ,  Tiemen Poorter

发明人： Cornelis D. Hartgring ,  Tiemen Poorter

IPC分类号： G11C11/412 ,  G11C11/419

CPC分类号： G11C11/4125 ,  G11C11/412 ,  G11C11/419

摘要： A memory cell is read by first charging a pair of bit lines to given positive potentials and then raising the potential of a cell access line to render access transistors conductive. The cell supply voltage is sufficient to cause substantial hot-electron stress in the n-channel transistors of the cell if it were applied directly across their source-drain paths while they were conductive. However, a limit is imposed on the maximum positive potentials which are applied to the bit lines from the exterior, and on the minimum ratio of the sizes of the cell n-channel amplifier transistors to the sizes of the access transistors, taking into account the threshold voltages of the amplifier transistors, and as a result substantial hot-electron stress does not occur. Substantial hot-electron stress is also prevented during a write operation by arranging that this is effectively preceded by a read operation.

公开(公告)号：US08718226B2

公开(公告)日：2014-05-06

申请号：US13130065

申请日：2009-11-13

申请人： Jorrit Jorritsma ,  Tiemen Poorter ,  Gerardus Franciscus Cornelis Maria Lijten ,  Johannes H. M. Van Roosmalen ,  Martinus Maria Sens ,  Timon Rutger Grob ,  Michael Johan Ferdinand Marie Ter Laak

发明人： Jorrit Jorritsma ,  Tiemen Poorter ,  Gerardus Franciscus Cornelis Maria Lijten ,  Johannes H. M. Van Roosmalen ,  Martinus Maria Sens ,  Timon Rutger Grob ,  Michael Johan Ferdinand Marie Ter Laak

IPC分类号： A61B6/00

CPC分类号： G01T1/2018 ,  G01T1/00

摘要： A tiled detector assembly (1000) and a method for making a tiled radiation detector (1000) is described. The innovative feature of this method is that the xyz misalignment of the detector tiles (304, 304′), the origin of various image artifacts, can be significantly reduced by accurate sizing and alignment of the detector tiles (304, 304′). Consequently, image quality, yield and reliability of as-produced tiled radiation detectors are considerably improved.

摘要翻译： 描述了平铺检测器组件（1000）和用于制作平铺放射线检测器（1000）的方法。 该方法的创新特征是可以通过精确地确定检测器瓦片（304,304'）的尺寸和对准来显着地减少检测器瓦片（304,304'）的xyz未对准，各种图像伪影的原点。 因此，大大提高了生产的平铺辐射探测器的图像质量，产量和可靠性。

公开(公告)号：US20130037723A1

公开(公告)日：2013-02-14

申请号：US13642861

申请日：2011-04-19

申请人： Coen Adrianus Verschuren ,  Heidrun Steinhauser ,  Tiemen Poorter ,  Hugo Johan Cornelissen

发明人： Coen Adrianus Verschuren ,  Heidrun Steinhauser ,  Tiemen Poorter ,  Hugo Johan Cornelissen

IPC分类号： G01T1/20 ,  H01L33/60

CPC分类号： G01T1/2002

摘要： An X-raydetector (1) is proposed comprising a light detection arrangement (3) such as a CMOS photodetector, a scintillator layer (5) such as a CsI:T1 layer, a reflector layer (9) and a light emission layer (7) interposed between the scintillator layer (5) and the reflector layer (9). The light emission layer (7) may comprise an OLED and may be made with a thickness of less than 50 μm. Thereby, a sensitivity and resolution of the X-raydetector may be improved.

摘要翻译： 提出了一种X射线检测器（1），其包括诸如CMOS光电检测器的光检测装置（3），诸如CsI：T1层的闪烁体层（5），反射器层（9）和发光层（7） ）插入在闪烁体层（5）和反射层（9）之间。 发光层（7）可以包括OLED，并且可以制成具有小于50μm的厚度。 因此，可以提高X射线检测器的灵敏度和分辨率。

公开(公告)号：US08284894B2

公开(公告)日：2012-10-09

申请号：US12933922

申请日：2009-03-26

申请人： Tiemen Poorter

发明人： Tiemen Poorter

IPC分类号： G01N23/00

CPC分类号： A61B6/502 ,  A61B6/025 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/4085 ,  A61B6/466

摘要： The present invention generally refers to computed tomography (CT) based imaging systems and, more particularly, to a fast 3D tomosynthesis scanner apparatus and CT-based method without focal spot motion during continuous tube movement around an object of interest (O) or tissue region (M) to be examined (herein also referred to as “object”), which may advantageously be used in cone-beam volume CT mammography imaging so as to avoid motion artifacts and blurring effects.

摘要翻译： 本发明总体上是指基于计算机断层摄影（CT）的成像系统，更具体地，涉及一种在围绕感兴趣对象（O）或组织区域的连续管移动期间没有焦点运动的快速3D层析融合扫描仪装置和基于CT的方法 （这里也称为物体），其可有利地用于锥束体积CT乳房X线照相成像，以避免运动伪像和模糊效应。

公开(公告)号：US20110026667A1

公开(公告)日：2011-02-03

申请号：US12933922

申请日：2009-03-26

申请人： Tiemen Poorter

发明人： Tiemen Poorter

IPC分类号： A61B6/03

CPC分类号： A61B6/502 ,  A61B6/025 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/4085 ,  A61B6/466

摘要： The present invention generally refers to computed tomography (CT) based imaging systems and, more particularly, to a fast 3D tomosynthesis scanner apparatus and CT-based method without focal spot motion during continuous tube movement around an object of interest (O) or tissue region (M) to be examined (herein also referred to as “object”), which may advantageously be used in cone-beam volume CT mammography imaging so as to avoid motion artifacts and blurring effects. According to the present invention, said 3D tomosynthesis scanner apparatus is adapted to perform a rotational step-and-shoot image acquisition procedure for acquiring a set of 2D projection images during a continuous rotational movement of an X-ray tube (101) in an azi-muthal direction (+φ) along an arc segment of a circular trajectory when rotating around said object (O, M) and subjecting these 2D projection images to a 3D reconstruction procedure. According to the present invention, it is foreseen that, during the image acquisition time for each 2D projection image, the focal spot on the X-ray tube's anode is moved in an opposite direction (−φ)from a start position (bs) to an end position (be) with respect to the rotary X-ray tube's housing such that the azimuthal path distance (Ab) covered by the X-ray tube (101) due to the continuous rotational tube movement during this time is compensated. The 3D tomosynthesis scanner further comprises a mechanism for switching the focal spot on the X-ray tube's anode back to its start position (bs) with respect to said tube housing before starting a new image acquisition process for acquiring image data of a next 2D projection image. The superposition of the focal spot movement with respect to the tube housing and the continuous rotational movement of the X-ray tube (101) along said arc segment results in a stationary focal spot position relative to the object (O, M) and a stationary X-ray detector (104) diametrically oppositely arranged to the X-ray tube (101) with respect to said object (O) for each of the individual 2D projection images.

公开(公告)号：US06563645B2

公开(公告)日：2003-05-13

申请号：US09888462

申请日：2001-06-25

申请人： Tewe Hiepke Heemstra ,  Tiemen Poorter

发明人： Tewe Hiepke Heemstra ,  Tiemen Poorter

IPC分类号： B29D1100

CPC分类号： H01J9/2273 ,  B29D11/00269 ,  G02B3/08

摘要： In the manufacturing process of color display tubes with a dotted screen pattern, to form the screen (11), a segmented lens (3) is used for exposing the display window (4) in order to apply a structure of a black matrix layer and a layer with electroluminescent material to it. Principally, a segmented lens (3) gives rise to a phenomenon that is called facet marking; this is a result of the fact that the images of consecutive facets (12) of the lens on the screen (11) are disjunct or partly overlap, giving dark lines (42) or bright lines (44). In present day color display tubes—especially for use as computer monitors—it is getting more and more important to reduce facet marking as far as possible. It is proposed to manufacture the segmented lens (3) according to a new process in which the mold (30) for the manufacture of said segmented lens is significantly changed. In the new process, the poles (31) for the mold (30) are stacked by placing them with cylindrical projections (36) into apertures (38) of the carrier plate (37). This prevents leaning poles (31), which result in errors in the inclination of the facets (12). This method of manufacturing the mold (30) makes it possible to decrease the facet size and significantly improve the facet marking in color display tubes.

摘要翻译： 在具有虚线图案的彩色显示管的制造过程中，为了形成屏幕（11），使用分段透镜（3）来曝光显示窗（4），以便施加黑矩阵层的结构， 具有电致发光材料的层。 主要是分段镜头（3）会产生一种叫做小标记的现象; 这是由于屏幕（11）上的透镜的连续小平面（12）的图像分离或部分重叠的结果，给出暗线（42）或亮线（44）。 在目前的彩色显示管 - 特别是用作计算机显示器 - 越来越重要的是尽可能地减小刻面标记。 提出根据新方法制造分段透镜（3），其中用于制造所述分割透镜的模具（30）显着改变。 在新工艺中，通过将圆柱形突起（36）放置在承载板（37）的孔（38）中，用于模具（30）的杆（31）被堆叠。 这防止倾斜极（31），这导致小平面（12）的倾斜误差。 这种制造模具（30）的方法使得可以减小小面尺寸并显着改善彩色显示管中的刻面标记。

公开(公告)号：US09995831B2

公开(公告)日：2018-06-12

申请号：US13642861

申请日：2011-04-19

申请人： Coen Adrianus Verschuren ,  Heidrun Steinhauser ,  Tiemen Poorter ,  Hugo Johan Cornelissen

发明人： Coen Adrianus Verschuren ,  Heidrun Steinhauser ,  Tiemen Poorter ,  Hugo Johan Cornelissen

IPC分类号： G01T1/20

CPC分类号： G01T1/2002

摘要： An X-ray detector (1) includes a light detection arrangement (3) such as a CMOS photodetector, a scintillator layer (5) such as a CsI:Tl layer, a reflector layer (9) and a light emission layer (7) interposed between the scintillator layer (5) and the reflector layer (9). The light emission layer (7) may include an OLED and may have a thickness of less than 50 μm. Thereby, a sensitivity and resolution of the X-ray detector may be improved.

公开(公告)号：US09201150B2

公开(公告)日：2015-12-01

申请号：US12918096

申请日：2009-02-19

申请人： Walter Ruetten ,  Tiemen Poorter ,  Rainer Kiewitt

发明人： Walter Ruetten ,  Tiemen Poorter ,  Rainer Kiewitt

IPC分类号： G01J1/26 ,  G01T1/20 ,  H04N5/32 ,  H04N5/357

CPC分类号： G01T1/2018 ,  H04N5/32 ,  H04N5/357

摘要： According to an embodiment of the invention, signals coming from a number of pixels or sub-pixels are compared and those signals from pixels or sub-pixels, which are substantially brighter than the other pixels in the comparison, are excluded from contributing to the output signal, to suppress direct detection events in X-ray detectors. For this an X-ray detector apparatus (101) can comprise: —an array (102) of pixel arrangements (303), —each pixel arrangement (303) comprising at least one radiation collection device (311) for converting incident radiation into a collection device signal, —switching arrangements (313, 324, 314, 142; 313, 315, 314, 352, 142; 313, 315, 314; 361) for providing to respectively one output element (141) a signal derived from the collection device signals of a plurality of radiation collection devices (311) of at least one pixel arrangement (303).

摘要翻译： 根据本发明的一个实施例，比较来自多个像素或子像素的信号，并且比较比较中基本上比其他像素亮的像素或子像素的信号被排除在对输出的贡献之外 信号，以抑制X射线检测器中的直接检测事件。 为此，X射线检测器装置（101）可以包括： - 像素装置（303）的阵列（102）， - 每个像素布置（303），包括至少一个辐射收集装置（311），用于将入射辐射转换成 收集装置信号， - 切换装置（313,324,314,142; 313,315,314,352,142; 313,315,314; 361），用于向所述收集装置信号分配一个输出元件（141） 至少一个像素装置（303）的多个辐射收集装置（311）的装置信号。