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1. 发明授权

US07782999B2 Systems and methods for scanning and data acquisition in computed tomography (CT) applications 有权
标题翻译：计算机断层扫描（CT）应用中扫描和数据采集的系统和方法
公开(公告)号：US07782999B2
公开(公告)日：2010-08-24
申请号：US12096443
申请日：2006-09-16
申请人： Astrid Lewalter , Rainer Pietig , Guenter Zeitler , Kai Eck , Christoph Herrmann , Rainer Kiewitt , Christoph Loef , Oliver Muelhens , Carolina Ribbing , Georg Rose , Matthias Simon , Olaf Wischhusen
发明人： Astrid Lewalter , Rainer Pietig , Guenter Zeitler , Kai Eck , Christoph Herrmann , Rainer Kiewitt , Christoph Loef , Oliver Muelhens , Carolina Ribbing , Georg Rose , Matthias Simon , Olaf Wischhusen
IPC分类号： H05G1/60 , H01J35/30
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4021 , A61B6/503 , A61B6/504 , H01J2235/086 , H05G1/52
摘要： Systems and methods for data acquisition in computed tomography (CT) applications are provided. The systems and methods are particularly adapted for scanning and acquiring/processing data in connection with high-power cone-beam CT applications. The electron beam is moved/scanned along the anode surface to multiple focal positions. Data acquisition for a full projection at one focus position and one view angle is achieved by activating each focus position multiple times during the data acquisition for one angle of the gantry. The detector array and associated data processing system are adapted to rapidly switch between the different focus positions during the acquisitions for one view angle and to collect all data belonging to the same projection into the same data set. Adaptive electron optics are utilized to move/scan the electron beam along the anode surface to the various focus positions. Alternatively, a plurality of cathodes may be provided for respective focus positions and the system may support fast switching therebetween to achieve desirably short spot times. The disclosed CT system permits greater power densities without risk of heat damage to the anode and effectively increases the track velocity of the electron beam on the anode surface. The CT system and associated data acquisition methods have particular utility in CT applications requiring increased time resolution and/or spatial resolution, e.g., cardiac CT applications.
摘要翻译：提供了计算机断层摄影（CT）应用中数据采集的系统和方法。该系统和方法特别适用于扫描和获取/处理与大功率锥束CT应用有关的数据。电子束沿着阳极表面移动/扫描到多个焦点位置。通过在台架的一个角度的数据采集过程中激活每个聚焦位置多次来实现在一个聚焦位置和一个视角下的全投影的数据采集。检测器阵列和相关联的数据处理系统适于在一次视角的采集期间在不同聚焦位置之间快速切换，并且将属于相同投影的所有数据收集到同一数据集中。使用自适应电子光学器件将电子束沿着阳极表面移动/扫描到各种焦点位置。或者，可以为各个焦点位置设置多个阴极，并且系统可以支持它们之间的快速切换，以实现期望的短光斑时间。所公开的CT系统允许更大的功率密度，而不会对阳极造成热损害的风险，并且有效地增加阳极表面上的电子束的轨道速度。 CT系统和相关数据采集方法在需要增加时间分辨率和/或空间分辨率（例如心脏CT应用）的CT应用中具有特别的用途。

2. 发明申请

US20090161819A1 SYSTEMS AND METHODS FOR SCANNING AND DATA ACQUISITION IN COMPUTED TOMOGRAPHY (CT) APPLICATIONS 有权
标题翻译：计算机断层扫描（CT）应用中扫描和数据采集的系统和方法
公开(公告)号：US20090161819A1
公开(公告)日：2009-06-25
申请号：US12096443
申请日：2006-09-16
申请人： Astrid Lewalter , Rainer Pietig , Guenter Zeitler , Kai Eck , Christoph Herrmann , Rainer Kiewitt , Christoph Loef , Oliver Muelhens , Carolina Ribbing , Georg Rose , Matthias Simon , Olaf Wischhusen
发明人： Astrid Lewalter , Rainer Pietig , Guenter Zeitler , Kai Eck , Christoph Herrmann , Rainer Kiewitt , Christoph Loef , Oliver Muelhens , Carolina Ribbing , Georg Rose , Matthias Simon , Olaf Wischhusen
IPC分类号： H05G1/60 , H01J35/30
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4021 , A61B6/503 , A61B6/504 , H01J2235/086 , H05G1/52
摘要： Systems and methods for data acquisition in computed tomography (CT) applications are provided. The systems and methods are particularly adapted for scanning and acquiring/processing data in connection with high-power cone-beam CT applications. The electron beam is moved/scanned along the anode surface to multiple focal positions. Data acquisition for a full projection at one focus position and one view angle is achieved by activating each focus position multiple times during the data acquisition for one angle of the gantry. The detector array and associated data processing system are adapted to rapidly switch between the different focus positions during the acquisitions for one view angle and to collect all data belonging to the same projection into the same data set. Adaptive electron optics are utilized to move/scan the electron beam along the anode surface to the various focus positions. Alternatively, a plurality of cathodes may be provided for respective focus positions and the system may support fast switching therebetween to achieve desirably short spot times. The disclosed CT system permits greater power densities without risk of heat damage to the anode and effectively increases the track velocity of the electron beam on the anode surface. The CT system and associated data acquisition methods have particular utility in CT applications requiring increased time resolution and/or spatial resolution, e.g., cardiac CT applications.
摘要翻译：提供了计算机断层摄影（CT）应用中数据采集的系统和方法。该系统和方法特别适用于扫描和获取/处理与大功率锥束CT应用有关的数据。电子束沿着阳极表面移动/扫描到多个焦点位置。通过在台架的一个角度的数据采集过程中激活每个聚焦位置多次来实现在一个聚焦位置和一个视角下的全投影的数据采集。检测器阵列和相关联的数据处理系统适于在一次视角的采集期间在不同聚焦位置之间快速切换，并且将属于相同投影的所有数据收集到同一数据集中。使用自适应电子光学器件将电子束沿着阳极表面移动/扫描到各种焦点位置。或者，可以为各个焦点位置设置多个阴极，并且系统可以支持它们之间的快速切换，以实现期望的短光斑时间。所公开的CT系统允许更大的功率密度，而不会对阳极造成热损害的风险，并且有效地增加阳极表面上的电子束的轨道速度。 CT系统和相关数据采集方法在需要增加时间分辨率和/或空间分辨率（例如心脏CT应用）的CT应用中具有特别的用途。

3. 发明申请

US20090321643A1 DETECTOR FOR AND A METHOD OF DETECTING ELECTROMAGNETIC RADIATION 有权
标题翻译：用于检测电磁辐射的检测器和检测方法
公开(公告)号：US20090321643A1
公开(公告)日：2009-12-31
申请号：US12374394
申请日：2007-07-12
申请人： Walter Rutten , Matthias Simon , Rainer Kiewitt , Christoph Herrmann , Bernd Menser
发明人： Walter Rutten , Matthias Simon , Rainer Kiewitt , Christoph Herrmann , Bernd Menser
IPC分类号： G01T1/24
CPC分类号： H01L27/14658 , H01L27/14676
摘要： A detector unit (301) for detecting electromagnetic radiation (106), the detector unit (301) comprising a conversion material (332) adapted for converting impinging electromagnetic radiation (106) into electric charge carriers, a charge collection electrode (331) adapted for collecting the converted electric charge carriers, a shielding electrode (334, 335) adapted to form a capacitance with the charge collection electrode (331), and an evaluation circuit (312 to 315) electrically coupled with the charge collection electrode (331) and adapted for evaluating the electromagnetic radiation (106) based on the collected electric charge carriers.
摘要翻译：一种用于检测电磁辐射（106）的检测器单元（301），所述检测器单元（301）包括适于将入射电磁辐射（106）转换成电荷载流子的转换材料（332），适于收集转换的电荷载体，适于与电荷收集电极（331）形成电容的屏蔽电极（334,335），以及与电荷收集电极（331）电耦合的评估电路（312至315），并且适于用于基于收集的电荷载流子来评估电磁辐射（106）。

4. 发明授权

US08193501B2 Detector for and a method of detecting electromagnetic radiation 有权
标题翻译：检测器和检测电磁辐射的方法
公开(公告)号：US08193501B2
公开(公告)日：2012-06-05
申请号：US12374394
申请日：2007-07-12
申请人： Walter Rutten , Matthias Simon , Rainer Kiewitt , Christoph Herrmann , Bernd Menser
发明人： Walter Rutten , Matthias Simon , Rainer Kiewitt , Christoph Herrmann , Bernd Menser
IPC分类号： G01J5/20 , G01T1/24
CPC分类号： H01L27/14658 , H01L27/14676
摘要： A detector unit (301) for detecting electromagnetic radiation (106), the detector unit (301) comprising a conversion material (332) adapted for converting impinging electromagnetic radiation (106) into electric charge carriers, a charge collection electrode (331) adapted for collecting the converted electric charge carriers, a shielding electrode (334, 335) adapted to form a capacitance with the charge collection electrode (331), and an evaluation circuit (312 to 315) electrically coupled with the charge collection electrode (331) and adapted for evaluating the electromagnetic radiation (106) based on the collected electric charge carriers.
摘要翻译：一种用于检测电磁辐射（106）的检测器单元（301），所述检测器单元（301）包括适于将入射电磁辐射（106）转换成电荷载流子的转换材料（332），适于收集转换的电荷载体，适于与电荷收集电极（331）形成电容的屏蔽电极（334,335），以及与电荷收集电极（331）电耦合的评估电路（312至315），并且适于用于基于收集的电荷载流子来评估电磁辐射（106）。

5. 发明授权

US08772727B2 X-ray detector 有权
标题翻译： X射线探测器
公开(公告)号：US08772727B2
公开(公告)日：2014-07-08
申请号：US13130918
申请日：2009-11-20
申请人： Walter Ruetten , Rainer Kiewitt , Olaf Wischhusen
发明人： Walter Ruetten , Rainer Kiewitt , Olaf Wischhusen
IPC分类号： G01T1/20
CPC分类号： G01T1/24
摘要： The application describes an X-ray detector for use in a medical equipment, wherein the detector comprises an unit for transforming X-ray radiation into electrical charge, a first capacitor for being charged by an electrical charge, wherein the first capacitor is electrically connected to the unit for transforming, a second capacitor for being charged by an electrical charge, and a first gain switching gate, wherein the second capacitor is electrically connected with the unit for transforming if the first gain switching gate is in on-state, wherein the detector is adapted to switch on the first gain switching gate for short periods. Further the application describes an X-ray system comprising a detector according to the invention, wherein the system is adapted for gain selection, wherein the detector is adapted to switch on the first gain switching gate for short periods. Further, the application describes a method for using a detector according to the inventive concept, wherein the first gain switching gate is switched on only for short periods of time for redistribution of electrical charge between the first capacitor and the second capacitor.
摘要翻译：该应用描述了用于医疗设备的X射线检测器，其中检测器包括用于将X射线辐射转换成电荷的单元，用于通过电荷进行充电的第一电容器，其中第一电容器电连接到用于变换的单元，用于通过电荷充电的第二电容器和第一增益切换栅极，其中如果所述第一增益切换栅极处于导通状态，则所述第二电容器与所述用于变换的单元电连接，其中所述检测器适于在短时间内接通第一增益切换门。此外，本申请描述了一种包括根据本发明的检测器的X射线系统，其中该系统适于增益选择，其中检测器适于在短时间内接通第一增益切换门。此外，本申请描述了一种使用根据本发明构思的检测器的方法，其中第一增益开关栅极仅在短时间段内被接通以在第一电容器和第二电容器之间重新分配电荷。

6. 发明申请

US20110240868A1 X-RAY DETECTOR 有权
标题翻译： X射线探测器
公开(公告)号：US20110240868A1
公开(公告)日：2011-10-06
申请号：US13130918
申请日：2009-11-20
申请人： Walter Ruetten , Rainer Kiewitt , Olaf Wischhusen
发明人： Walter Ruetten , Rainer Kiewitt , Olaf Wischhusen
IPC分类号： G01T1/20 , G01T1/16 , G01T1/24
CPC分类号： G01T1/24
摘要： The application describes an X-ray detector for use in a medical equipment, wherein the detector comprises an unit for transforming X-ray radiation into electrical charge, a first capacitor for being charged by an electrical charge, wherein the first capacitor is electrically connected to the unit for transforming, a second capacitor for being charged by an electrical charge, and a first gain switching gate, wherein the second capacitor is electrically connected with the unit for transforming if the first gain switching gate is in on-state, wherein the detector is adapted to switch on the first gain switching gate for short periods. Further the application describes an X-ray system comprising a detector according to the invention, wherein the system is adapted for gain selection, wherein the detector is adapted to switch on the first gain switching gate for short periods. Further, the application describes a method for using a detector according to the inventive concept, wherein the first gain switching gate is switched on only for short periods of time for redistribution of electrical charge between the first capacitor and the second capacitor.
摘要翻译：该应用描述了用于医疗设备的X射线检测器，其中检测器包括用于将X射线辐射转换成电荷的单元，用于通过电荷进行充电的第一电容器，其中第一电容器电连接到用于变换的单元，用于通过电荷充电的第二电容器和第一增益切换栅极，其中如果所述第一增益切换栅极处于导通状态，则所述第二电容器与所述用于变换的单元电连接，其中所述检测器适于在短时间内接通第一增益切换门。此外，本申请描述了一种包括根据本发明的检测器的X射线系统，其中该系统适于增益选择，其中检测器适于在短时间内接通第一增益切换门。此外，本申请描述了一种使用根据本发明构思的检测器的方法，其中第一增益开关栅极仅在短时间段内被接通以在第一电容器和第二电容器之间重新分配电荷。

7. 发明申请

US20060025088A1 Device for dynamic impedance matching between a power amplifier and an antenna 审中-公开
标题翻译：功率放大器与天线之间的动态阻抗匹配装置
公开(公告)号：US20060025088A1
公开(公告)日：2006-02-02
申请号：US10521720
申请日：2003-07-11
申请人： Rainer Pietig , Rainer Kiewitt , Marion Matters-Kammerer , Thomas Purr
发明人： Rainer Pietig , Rainer Kiewitt , Marion Matters-Kammerer , Thomas Purr
IPC分类号： H04B1/04 , H01Q11/12
CPC分类号： H04B1/0458
摘要： A device for dynamic impedance matching between a power amplifier and an antenna, having a circulator (210), which routes a signal received from the power amplifier (10) at a first port via a second port to the antenna (30) and diverts the signal reflected at the antenna (30) and received at the second port through a third port; and a controllable matching network (24, 240, 250); is characterized in that a directional coupler (200) diverts a proportion of the signal traveling from the power amplifier (10) to the antenna (30), from which the magnitude and phase of the signal may be derived, to a signal detector (220); and the circulator (210) routes the entire signal reflected at the antenna (30) into the signal detector (220); wherein the signal detector (220) passes the magnitude and phase of both the signal traveling to the antenna (30) and the signal reflected at the antenna (30) to a controller (230), which evaluates the information received from the signal detector (220) in order to determine the present impedance value of the antenna (30) and to correct the controllable matching network (24, 240, 250) having active and passive components in accordance with the determined impedance value of the antenna (30).
摘要翻译：一种用于功率放大器和天线之间的动态阻抗匹配的装置，具有循环器（210），其将从功率放大器（10）接收的信号经由第二端口经由第二端口路由到天线（30），并且将信号在天线（30）处反射并通过第三端口在第二端口处被接收; 和可控匹配网络（24,240,250）; 定向耦合器（200）将从功率放大器（10）传播的信号的一部分转移到信号的幅度和相位可以从其导出的天线（30）到信号检测器（220））; 并且环行器（210）将在天线（30）处反射的整个信号路由到信号检测器（220）中; 其中信号检测器（220）将行进到天线（30）的信号和在天线（30）处反射的信号的幅度和相位传递到控制器（230），控制器（230）评估从信号检测器 220），以便确定天线（30）的当前阻抗值，并且根据所确定的天线（30）的阻抗值来校正具有有源和无源分量的可控匹配网络（24,240,250）。

8. 发明授权

US08288733B2 Radiation sensitive detector 有权
标题翻译：辐射敏感探测器
公开(公告)号：US08288733B2
公开(公告)日：2012-10-16
申请号：US12523196
申请日：2008-01-10
申请人： Christoph Herrmann , Rainer Kiewitt , Michael Overdick
发明人： Christoph Herrmann , Rainer Kiewitt , Michael Overdick
IPC分类号： G01T1/24 , H05G1/64
CPC分类号： G01T1/2018 , G01T1/2928 , H01L27/1464 , H01L27/14658
摘要： An apparatus includes an x-ray source (112) that generates transmission radiation that traverses an examination region (108) and a detector (116) that includes a photo-converter (204) that detects the radiation and generates a signal indicative thereof. The photo-converter (204) includes a light receiving region (260) on a back side (264).5The light receiving region receives light indicative of the detected radiation. The photo-converter (204) further includes read-out electronics (240) within a front side (228), which is located opposite the back side (264). The read-out electronics (240) process a photo-current indicative of the received light to generate the signal indicative of the detected radiation. The photo-converter (204) further includes a photodiode (208, 212, 232) 10disposed between the light receiving region (260) and the read-out electronics (240). The photodiode (212) produces the photo-current. A reconstructor (128) reconstructs the signal to generate image data indicative of the examination region (108).
摘要翻译：一种装置包括产生穿过检查区域（108）的透射辐射的X射线源（112）和包括检测辐射并产生指示信号的信号的光转换器（204）的检测器（116）。光转换器（204）包括在背面（264）上的光接收区域（260）。光接收区域接收指示检测到的辐射的光。光转换器（204）还包括在前侧（228）内的与后侧（264）相对定位的读出电子器件（240）。读出电子装置（240）处理指示所接收的光的光电流，以产生指示检测到的辐射的信号。光转换器（204）还包括放置在光接收区域（260）和读出电子器件（240）之间的光电二极管（208,212,232）。光电二极管（212）产生光电流。重建器（128）重建信号以生成指示检查区域（108）的图像数据。

9. 发明授权

US08552858B2 Simulation and visualization of scattered radiation 有权
标题翻译：散射辐射的模拟和可视化
公开(公告)号：US08552858B2
公开(公告)日：2013-10-08
申请号：US12527930
申请日：2008-02-22
申请人： Steffen Gunther Hohmann , Christian Baeumer , Joerg Bredno , Norbert Conrads , Olivier Ecabert , Klaus Juergen Engel , Christoph Herrmann , Rainer Kiewitt , Helko Lehmann
发明人： Steffen Gunther Hohmann , Christian Baeumer , Joerg Bredno , Norbert Conrads , Olivier Ecabert , Klaus Juergen Engel , Christoph Herrmann , Rainer Kiewitt , Helko Lehmann
IPC分类号： G08B21/00 , G01N21/47 , G01N23/04 , F21V33/00 , A61B6/08 , A61B6/00 , A61B6/04 , A61B5/05
CPC分类号： A61N5/1048 , A61B6/483 , A61N5/103 , A61N2005/1056 , A61N2005/1094
摘要： Scattered radiation has non-intuitive properties. A signalling system (28) is presented which provides a perceptible signal (34) being indicative of a predicted or measured spatial distribution of scattered radiation. An embodiment provides for easy assessment of the individual risk of scattered radiation exposure for personnel working in an environment exposed to scattered radiation. A method for predicting a distribution of scattered radiation takes into account at least one object related parameter (18) and at least one radiation related parameter (22) and, in response hereto, predicts a distribution of scattered radiation.
摘要翻译：散射辐射具有非直观的特性。提供信号系统（28），其提供指示散射辐射的预测或测量的空间分布的可感知信号（34）。一个实施例提供了容易评估在暴露于散射辐射的环境中工作的人员的散射辐射暴露的个体风险。一种用于预测散射辐射分布的方法考虑了至少一个物体相关参数（18）和至少一个辐射相关参数（22），并且作为响应，预测散射辐射的分布。

10. 发明申请

US20100127859A1 SIMULATION AND VISUALIZATION OF SCATTERED RADIATION 有权
标题翻译：模拟和可视化的散射辐射
公开(公告)号：US20100127859A1
公开(公告)日：2010-05-27
申请号：US12527930
申请日：2008-02-22
申请人： Steffen Gunther Hohmann , Christian Baumer , Jorg Bredno , Norbert Conrads , Olivier Ecabert , Klaus Juergen Engel , Christoph Herrmann , Rainer Kiewitt , Helko Lehmann
发明人： Steffen Gunther Hohmann , Christian Baumer , Jorg Bredno , Norbert Conrads , Olivier Ecabert , Klaus Juergen Engel , Christoph Herrmann , Rainer Kiewitt , Helko Lehmann
IPC分类号： G08B21/00
CPC分类号： A61N5/1048 , A61B6/483 , A61N5/103 , A61N2005/1056 , A61N2005/1094
摘要： Scattered radiation has non-intuitive properties. A signalling system (28) is presented which provides a perceptible signal (34) being indicative of a predicted or measured spatial distribution of scattered radiation. An embodiment provides for easy assessment of the individual risk of scattered radiation exposure for personnel working in an environment exposed to scattered radiation. A method for predicting a distribution of scattered radiation takes into account at least one object related parameter (18) and at least one radiation related parameter (22) and, in response hereto, predicts a distribution of scattered radiation.
摘要翻译：散射辐射具有非直观的特性。提供信号系统（28），其提供指示散射辐射的预测或测量的空间分布的可感知信号（34）。一个实施例提供了容易评估在暴露于散射辐射的环境中工作的人员的散射辐射暴露的个体风险。一种用于预测散射辐射分布的方法考虑了至少一个物体相关参数（18）和至少一个辐射相关参数（22），并且作为响应，预测散射辐射的分布。

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