公开(公告)号：US20120300901A1

公开(公告)日：2012-11-29

申请号：US13393835

申请日：2010-09-13

Applicant: Astrid Lewalter ,  Rainer Pietig ,  Wolfgang Chrost

Inventor： Astrid Lewalter ,  Rainer Pietig ,  Wolfgang Chrost

IPC: H01J35/28 ,  A61B6/02 ,  G01N23/04 ,  H01J35/06 ,  H01J35/12

CPC classification number: H01J35/28 ,  A61B6/025 ,  A61B6/4028 ,  A61B6/4488 ,  A61B6/502 ,  A61B6/508 ,  H01J35/065 ,  H01J35/12 ,  H01J2235/068 ,  H01J2235/1262

Abstract: A distributed X-ray source (3) and an imaging system (1) comprising such an X-ray source (3) are proposed. The X-ray source (3) comprises an electron beam source arrangement (19) and an anode arrangement (17). The electron beam source arrangement (19) is adapted to emit electron beams (24) towards at least two locally distinct focal spots (27) on the anode arrangement (17). Therein, the X-ray source is adapted for displacing the anode arrangement (17) with respect to the electron beam source arrangement (19). While the provision of a plurality of focal spots allows acquisition of projection images under different projection angles thereby allowing reconstruction of three-dimensional X-ray images e.g. in tomosynthesis application, a displacement motion of the anode arrangement (17) with respect to the electron beam source arrangement (19) may allow for distributed heat flux to the anode arrangement thereby possibly reducing cooling requirements.

Abstract translation: 提出了包括这样的X射线源（3）的分布式X射线源（3）和成像系统（1）。 X射线源（3）包括电子束源装置（19）和阳极装置（17）。 电子束源装置（19）适于向阳极装置（17）上的至少两个局部不同的焦点（27）发射电子束（24）。 其中，X射线源适于使阳极装置（17）相对于电子束源装置（19）移位。 虽然提供多个焦点允许在不同的投影角度获取投影图像，从而允许重建三维X射线图像，例如， 在层析合成应用中，阳极布置（17）相对于电子束源装置（19）的位移运动可以允许分布的热通量到阳极布置，从而可能降低冷却要求。

公开(公告)号：US08184774B2

公开(公告)日：2012-05-22

申请号：US13086425

申请日：2011-04-14

Applicant: Rainer Pietig ,  Christoph Martiny

Inventor： Rainer Pietig ,  Christoph Martiny

IPC: H01J35/00

CPC classification number: H05G1/36 ,  G01J5/602 ,  H01J35/26

Abstract: An x-ray tube disclosed here in includes an emitter arranged to emit electrons on to a focal spot on a rotatable anode. The x-ray tube also includes a hollow tube arranged to receive electromagnetic radiation from the focal spot at one end of the hollow tube and transmit it to another end. The x-ray tube also includes two or more sensors arranged to detect the electromagnetic radiation through the hollow tube.

Abstract translation: 这里公开的X射线管包括发射器，其发射电子到可旋转阳极上的焦斑上。 X射线管还包括中空管，该中空管布置成在中空管的一端处接收来自焦点的电磁辐射并将其传送到另一端。 X射线管还包括两个或更多个传感器，其布置成检测通过中空管的电磁辐射。

公开(公告)号：US07835501B2

公开(公告)日：2010-11-16

申请号：US12444749

申请日：2007-10-09

Applicant: Stefan Hauttmann ,  Rainer Pietig ,  Jeroen Jan Lambertus Horikx

Inventor： Stefan Hauttmann ,  Rainer Pietig ,  Jeroen Jan Lambertus Horikx

IPC: H01J35/04 ,  H01J35/14 ,  H01J35/10

CPC classification number: H01J35/14 ,  H01J35/06 ,  H01J35/105 ,  H01J2235/064 ,  H01J2235/1225

Abstract: According to an exemplary embodiment an x-ray tube comprises a cathode, rotable disc anode, and a focal spot modulating unit, wherein the cathode is adapted to emit an electron beam, and wherein the focal spot modulating unit is adapted to modulate the electron beam in such a way that an intensity distribution of the electron beam on a focal spot on the anode is asymmetric such that the intensity of the electron beam on the focal spot is higher at the front of the focal spot with respect to the rotation direction.

Abstract translation: 根据示例性实施例，X射线管包括阴极，可旋转盘阳极和焦斑调制单元，其中阴极适于发射电子束，并且其中焦点调制单元适于调制电子束 使得电子束在阳极上的焦斑上的强度分布是不对称的，使得焦点上的电子束的强度相对于旋转方向在焦点的前部较高。

公开(公告)号：US20100008470A1

公开(公告)日：2010-01-14

申请号：US12444749

申请日：2007-10-09

Applicant: Stefan Hauttmann ,  Rainer Pietig ,  Jeroen Jan Lambertus Horikx

Inventor： Stefan Hauttmann ,  Rainer Pietig ,  Jeroen Jan Lambertus Horikx

IPC: H01J35/04 ,  H01J35/14 ,  H01J35/10

CPC classification number: H01J35/14 ,  H01J35/06 ,  H01J35/105 ,  H01J2235/064 ,  H01J2235/1225

Abstract: According to an exemplary embodiment an x-ray tube comprises a cathode, rotable disc anode, and a focal spot modulating unit, wherein the cathode is adapted to emit an electron beam, and wherein the focal spot modulating unit is adapted to modulate the electron beam in such a way that an intensity distribution of the electron beam on a focal spot on the anode is asymmetric such that the intensity of the electron beam on the focal spot is higher at the front of the focal spot with respect to the rotation direction.

Abstract translation: 根据示例性实施例，X射线管包括阴极，可旋转盘阳极和焦斑调制单元，其中阴极适于发射电子束，并且其中焦点调制单元适于调制电子束 使得电子束在阳极上的焦斑上的强度分布是不对称的，使得焦点上的电子束的强度相对于旋转方向在焦点的前部较高。

公开(公告)号：US20090279659A1

公开(公告)日：2009-11-12

申请号：US12305458

申请日：2007-06-13

Applicant: Bernd David ,  Michael Grass ,  Astrid Fatou Lewalter ,  Rainer Pietig

Inventor： Bernd David ,  Michael Grass ,  Astrid Fatou Lewalter ,  Rainer Pietig

IPC: H05G1/60 ,  A61B6/00

CPC classification number: G01T1/2985 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/483 ,  A61B6/5282 ,  A61B6/583

Abstract: A computed tomography reconstruction method includes concurrently emitting radiation from at least two x-ray sources (14), switching the output state of each of the at least two x-ray sources (14) within a plurality of respective cross scatter sampling intervals (50, 52, 54, 56) and detecting with a corresponding one of the sets of detectors (24) cross scatter radiation emitted by the other at least two x-ray sources (14), wherein the cross scatter sampling intervals are angularly spaced over a plurality of frames to allow the at least two x-ray sources (14) to concurrently emit radiation throughout at least one frame, deriving scatter correction data for each set of detectors (24) from corresponding cross scatter samples, scatter correcting the projection data with corresponding scatter correction data, and reconstructing the scatter corrected projection data to generate at least one image.

Abstract translation: 计算机断层摄影重建方法包括同时从至少两个X射线源（14）发射辐射，在多个相应的交叉散射采样间隔（50）内切换所述至少两个X射线源（14）中的每一个的输出状态 ，52,54,56），并且用所述检测器组（24）中的对应的一组检测由所述另外的至少两个x射线源（14）发射的散射辐射，其中所述交叉散射采样间隔在 多个帧以允许至少两个x射线源（14）同时在至少一个帧中发射辐射，从相应的交叉散射样本导出每组检测器（24）的散射校正数据，利用 对应的散射校正数据，以及重建散射校正投影数据以生成至少一个图像。

公开(公告)号：US20090275297A1

公开(公告)日：2009-11-05

申请号：US12498730

申请日：2009-07-07

Applicant: Rainer Pietig ,  Meng Cao

Inventor： Rainer Pietig ,  Meng Cao

IPC: H04B1/04 ,  H01P1/38 ,  H01L21/00 ,  H01P11/00

CPC classification number: H01P1/38 ,  Y10T29/49016

Abstract: The invention relates to a non-reciprocal component comprising: a ferrite substrate having a first side and an opposing second side located on a ground layer, a first metal line and a second metal line are located on the ferrite substrate in parallel to each other. To provide a non-reciprocal component having small dimensions and which could be integrated. The ferrite substrate is magnetized parallel to the metal lines and each of the metal lines is running at least from one side of the ferrite substrate to the other side and back forming thereby at least one meander loop, wherein the loops are interlaced to each other and the metal lines are isolated in an area of the loop.

Abstract translation: 本发明涉及一种不可逆部件，包括：铁氧体基板，其具有位于接地层上的第一侧和相对的第二侧，第一金属线和第二金属线彼此平行地位于铁氧体基板上。 提供具有小尺寸并且可以集成的不可逆部件。 铁氧体衬底被平行于金属线磁化，并且每个金属线至少从铁氧体衬底的一侧运行到另一侧，并且由此形成至少一个弯曲环，其中环彼此交织， 金属线在环路的一个区域被隔离。

公开(公告)号：US20060025088A1

公开(公告)日：2006-02-02

申请号：US10521720

申请日：2003-07-11

Applicant: Rainer Pietig ,  Rainer Kiewitt ,  Marion Matters-Kammerer ,  Thomas Purr

Inventor： Rainer Pietig ,  Rainer Kiewitt ,  Marion Matters-Kammerer ,  Thomas Purr

IPC: H04B1/04 ,  H01Q11/12

CPC classification number: H04B1/0458

Abstract: 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).

Abstract translation: 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）。

公开(公告)号：US09121954B2

公开(公告)日：2015-09-01

申请号：US13583093

申请日：2011-03-04

Applicant: Rainer Pietig ,  Walter Ruetten ,  Christoph Herrmann

Inventor： Rainer Pietig ,  Walter Ruetten ,  Christoph Herrmann

IPC: G01T1/24 ,  G01T1/17 ,  H04N5/32

CPC classification number: G01T1/247 ,  G01T1/17 ,  H04N5/32

Abstract: Device and method for synchronously switching activating a first and second charge accumulation section (31, 32) for a duration of a first and second predetermined sub-frame and a first and second X-ray source until lapse of a predetermined time frame for each of the first and second charge accumulation section (31, 32) for the accumulation of a plurality of temporally distributed partial charges according to an origin of a respective one of the plurality of spatially distributed X-ray sources so as to establish a specific relation between the focal spot position and a rule for accumulating the respective partial measurements, e.g. temporally distributed partial charges, belonging to the same focal spot positions, and to keep the focal spot temperature low by only activating the focal spot for a limited time according to a sub-frame.

Abstract translation: 用于在第一和第二预定子帧和第一和第二X射线源的持续时间内同步切换激活第一和第二电荷累积部分（31,32）的装置和方法，直到经过预定时间帧 第一和第二电荷累积部分，用于根据多个空间分布的X射线源中的相应一个的原点累积多个时间分布的部分电荷，以便建立所述多个时间分布的部分电荷之间的特定关系 焦点位置和用于累积各个部分测量的规则，例如 属于相同焦点位置的时间分布的部分电荷，并且通过仅根据子帧激活有限时间的焦点来将焦点温度保持在低温。

公开(公告)号：US08576988B2

公开(公告)日：2013-11-05

申请号：US13393835

申请日：2010-09-13

Applicant: Astrid Lewalter ,  Rainer Pietig ,  Wolfgang Chrost

Inventor： Astrid Lewalter ,  Rainer Pietig ,  Wolfgang Chrost

IPC: H01J35/08 ,  H01J35/28

CPC classification number: H01J35/28 ,  A61B6/025 ,  A61B6/4028 ,  A61B6/4488 ,  A61B6/502 ,  A61B6/508 ,  H01J35/065 ,  H01J35/12 ,  H01J2235/068 ,  H01J2235/1262

Abstract: A distributed X-ray source (3) and an imaging system (1) comprising such an X-ray source (3) are proposed. The X-ray source (3) comprises an electron beam source arrangement (19) and an anode arrangement (17). The electron beam source arrangement (19) is adapted to emit electron beams (24) towards at least two locally distinct focal spots (27) on the anode arrangement (17). Therein, the X-ray source is adapted for displacing the anode arrangement (17) with respect to the electron beam source arrangement (19). While the provision of a plurality of focal spots allows acquisition of projection images under different projection angles thereby allowing reconstruction of three-dimensional X-ray images e.g. in tomosynthesis application, a displacement motion of the anode arrangement (17) with respect to the electron beam source arrangement (19) may allow for distributed heat flux to the anode arrangement thereby possibly reducing cooling requirements.

Abstract translation: 提出了包括这样的X射线源（3）的分布式X射线源（3）和成像系统（1）。 X射线源（3）包括电子束源装置（19）和阳极装置（17）。 电子束源装置（19）适于向阳极装置（17）上的至少两个局部不同的焦点（27）发射电子束（24）。 其中，X射线源适于使阳极装置（17）相对于电子束源装置（19）移位。 虽然提供多个焦点允许在不同的投影角度获取投影图像，从而允许重建三维X射线图像，例如， 在层析合成应用中，阳极布置（17）相对于电子束源装置（19）的位移运动可以允许分布的热通量到阳极布置，从而可能降低冷却要求。

公开(公告)号：US20110211676A1

公开(公告)日：2011-09-01

申请号：US12672306

申请日：2008-08-04

Applicant: Ralf Dorscheid ,  Gereon Vogtmeier ,  Rainer Pietig

Inventor： Ralf Dorscheid ,  Gereon Vogtmeier ,  Rainer Pietig

IPC: H01J35/08 ,  C23C14/30 ,  C23C14/14 ,  B05C9/12

CPC classification number: H01J35/08 ,  H01J2235/083 ,  H01J2235/085

Abstract: A method and an apparatus for locally applying material to the surface of an anode of an X-ray source as well as a corresponding anode is presented. Anode material such as a repair material for filling a recess (121) in an X-ray emitting surface (115) is applied to the X-ray emitting surface of an anode (101). The location where such material is to be applied may be detected using a laser beam (133). The applied repair material including particles (41) of anode material such as tungsten, rhenium or molybdenum, is subsequently locally sintered using a high-energy laser beam (151). The sintered material may then be melted using a high-energy electron beam (163). Using such method, a damaged surface of an anode may be locally repaired. Alternatively, structures of different anode materials or of protrusions having different levels can be provided on the X-ray emitting surface (115) in order to selectively manipulate the X-ray emitting characteristics of the anode (101).

Abstract translation: 提出了一种用于将材料局部施加到X射线源的阳极表面以及相应的阳极的方法和装置。 向阳极（101）的X射线发射面施加阳极材料，例如用于填充X射线发射表面（115）中的凹部（121）的修复材料。 可以使用激光束（133）来检测施加这种材料的位置。 随后使用高能激光束局部烧结包括诸如钨，铼或钼的阳极材料的颗粒（41）的施加的修复材料。 然后可以使用高能电子束（163）熔化烧结材料。 使用这种方法，可以局部地修复阳极损坏的表面。 或者，可以在X射线发射表面（115）上提供不同阳极材料或具有不同水平的突起的结构，以选择性地操纵阳极（101）的X射线发射特性。