公开(公告)号：US20090304158A1

公开(公告)日：2009-12-10

申请号：US12134330

申请日：2008-06-06

Applicant: Kristopher John Frutschy ,  Yang Cao ,  Dennis M. Jacobs ,  Mark E. Vermilyea ,  Xi Zhang ,  Yun Zou ,  Louis Paul Inzinna ,  Michael Hebert

Inventor： Kristopher John Frutschy ,  Yang Cao ,  Dennis M. Jacobs ,  Mark E. Vermilyea ,  Xi Zhang ,  Yun Zou ,  Louis Paul Inzinna ,  Michael Hebert

IPC: H05G1/02

CPC classification number: H01J35/08 ,  H01J35/06 ,  H01J2235/068

Abstract: A modular x-ray source for an imaging system includes an electron source mounting plate, two or more electron sources each mounted on and electrically coupled to the electron source mounting plate, and a target block positioned proximately to the two or more electron sources. The source includes two or more targets mounted on and electrically coupled to the target block, each target positioned opposite a respective one of the two or more electron sources to receive a respective beam of electrons therefrom.

Abstract translation: 用于成像系统的模块化x射线源包括电子源安装板，每个安装在电子源安装板上并电耦合到电子源安装板的两个或更多个电子源以及靠近两个或更多个电子源定位的靶块。 源包括安装在目标块上并电耦合到目标块的两个或多个目标，每个目标定位成与两个或更多个电子源中的相应一个相对，以从其中接收相应的电子束。

公开(公告)号：US20090185660A1

公开(公告)日：2009-07-23

申请号：US12017098

申请日：2008-01-21

Applicant: Yun Zou ,  Mark E. Vermilyea ,  Louis Paul Inzinna ,  Vasile Bogdan Neculaes ,  John Scott Price ,  Yang Cao ,  Antonio Caiafa

Inventor： Yun Zou ,  Mark E. Vermilyea ,  Louis Paul Inzinna ,  Vasile Bogdan Neculaes ,  John Scott Price ,  Yang Cao ,  Antonio Caiafa

IPC: H01J35/04 ,  H01J35/14

CPC classification number: H01J1/3048 ,  H01J2235/062 ,  H01J2235/068

Abstract: A multiple spot x-ray generator is provided that includes a plurality of electron generators. Each electron generator includes an emitter element to emit an electron beam, a meshed grid adjacent each emitter element to enhance an electric field at a surface of the emitter element, and a focusing element positioned to receive the electron beam from each of the emitter elements and focus the electron beam to form a focal spot on a shielded target anode, the shielded target anode structure producing an array of x-ray focal spots when impinged by electron beams generated by the plurality of electron generators. The plurality of electron generators are arranged to form an electron generator matrix that includes activation connections electrically connected to the plurality of electron generators, wherein each electron generator is connected to a pair of the activation connections to receive an electric potential therefrom.

Abstract translation: 提供了包括多个电子发生器的多点x射线发生器。 每个电子发生器包括发射电子束的发射体元件，邻近每个发射极元件的网格栅格，以增强发射体元件表面的电场;以及聚焦元件，其定位成从每个发射体元件接收电子束， 聚焦电子束以在屏蔽目标阳极上形成焦斑，屏蔽目标阳极结构在由多个电子发生器产生的电子束撞击时产生X射线焦点阵列。 多个电子发生器被布置成形成电子发生器矩阵，其包括电连接到多个电子发生器的激活连接，其中每个电子发生器连接到一对激活连接以从其接收电位。

公开(公告)号：US20090080614A1

公开(公告)日：2009-03-26

申请号：US12201741

申请日：2008-08-29

Applicant: Mark F. Eaton ,  Leonid D. Karpov

Inventor： Mark F. Eaton ,  Leonid D. Karpov

IPC: H01J35/06

CPC classification number: H01J35/065 ,  H01J35/08 ,  H01J35/14 ,  H01J35/16 ,  H01J2235/068 ,  H01J2235/081 ,  H01J2235/087

Abstract: A radiation source which can emit X-ray flux, UV-C flux and other forms of radiation uses electron beam current from a cathode array formed on the window through which the radiation will exit the source. The source can be made in formats which are compact or flat compared with prior art radiation sources. X-ray, UV-C and other radiative flux produced by the source can be used for such purposes as radiation imaging, sterilization, decontamination of biohazards, UV curing or photolithography.

Abstract translation: 可以发射X射线通量，UV-C通量和其他形式的辐射的辐射源使用来自形成在窗口上的阴极阵列的电子束电流，辐射将通过该阴极阵列离开源。 与现有技术的辐射源相比，源可以以紧凑或扁平的形式制成。 由源产生的X射线，UV-C和其他辐射通量可用于辐射成像，灭菌，生物危害的去污，UV固化或光刻。

公开(公告)号：US07486772B2

公开(公告)日：2009-02-03

申请号：US11601577

申请日：2006-11-17

Applicant: Jianping Lu ,  Otto Z. Zhou ,  Qi Qiu

Inventor： Jianping Lu ,  Otto Z. Zhou ,  Qi Qiu

IPC: G01N23/201

CPC classification number: H01J35/065 ,  G01N23/203 ,  H01J35/24 ,  H01J2235/062 ,  H01J2235/068

Abstract: Systems and methods for x-ray imaging and scanning of objects are disclosed. According to one aspect, the subject matter described herein can include providing an x-ray source configured to generate a plurality of individually-controllable x-ray beams, positioning an object to be imaged in a path for intercepting at least one of the x-ray beams, activating the x-ray source, detecting intensities of the emitted x-ray beams, and generating imaging data based on the intensities for constructing an image of the object.

Abstract translation: 公开了用于x射线成像和物体扫描的系统和方法。 根据一个方面，本文描述的主题可以包括提供被配置为产生多个可单独控制的X射线束的X射线源，将要成像的对象定位在用于截取x射线束中的至少一个的路径中， 激活X射线源，检测发射的X射线束的强度，以及基于用于构建物体的图像的强度来生成成像数据。

公开(公告)号：US20080310593A1

公开(公告)日：2008-12-18

申请号：US11763175

申请日：2007-06-14

Applicant: Thomas Schaefer ,  Ron Hockersmith ,  Ethan Westcot

Inventor： Thomas Schaefer ,  Ron Hockersmith ,  Ethan Westcot

IPC: H01J35/06 ,  H01J9/00

CPC classification number: H01J35/06 ,  H01J2235/068

Abstract: In one embodiment, an X ray tube assembly is provided. The X ray tube assembly comprises an evacuated envelope, an anode disposed at a first end of the evacuated envelope and a cathode assembly disposed at a second end of the evacuated envelope. The cathode assembly comprises a cathode filament and a cathode cup defining a plurality of electrically isolated deflection electrodes. Further, the cathode cup comprises at least two portions, a first portion comprising an electrically conductive material and a second portion comprising an electrically insulating material. In another embodiment, a method of manufacturing the X ray tube assembly is provided.

Abstract translation: 在一个实施例中，提供了X射线管组件。 X射线管组件包括真空的外壳，设置在真空外壳的第一端的阳极和设置在抽真空的外壳的第二端的阴极组件。 阴极组件包括限定多个电隔离的偏转电极的阴极丝和阴极杯。 此外，阴极杯包括至少两个部分，第一部分包括导电材料，第二部分包括电绝缘材料。 在另一个实施例中，提供了一种制造X射线管组件的方法。

公开(公告)号：US20080267354A1

公开(公告)日：2008-10-30

申请号：US11596693

申请日：2004-05-19

Applicant: Kurt Holm ,  Lars-Ola Nilsson

Inventor： Kurt Holm ,  Lars-Ola Nilsson

IPC: H01J35/06

CPC classification number: H01J35/08 ,  H01J33/00 ,  H01J35/065 ,  H01J35/116 ,  H01J35/186 ,  H01J2235/068

Abstract: The invention relates to an X-ray tube (11) with a cathode that emits electrons (e−) into an interior chamber (40) that is under vacuum, and with a target (31, 32), configured as an anode, for generating high-dose X-radiation (γ), the cathode comprising at least one cold cathode (21, 22, 23) based on an electron (e−) emitting material having a field-enhancing structure (70). The invention especially relates to an X-ray tube (11) having a cold cathode (21, 22, 23) that comprises at least one support layer (201) for holding the electron (e−) emitting material, the emission area of the cold cathode (21, 22, 23) being defined by the shape of the support layer (201).

Abstract translation: 本发明涉及一种具有阴极的X射线管（11），该阴极将电子（e-）发射到处于真空状态的内部腔室（40）内，并且与靶（31,32）配置为阳极，用于 产生高剂量X射线（γ），所述阴极包括基于具有场增强结构（70）的电子（e-）发射材料的至少一个冷阴极（21,22,23）。 本发明特别涉及一种具有冷阴极（21,22,23）的X射线管（11），该冷阴极包括用于保持电子（e-）发射材料的至少一个支撑层（201），该发射区域 冷阴极（21,22,23）由支撑层（201）的形状限定。

公开(公告)号：US07359484B2

公开(公告)日：2008-04-15

申请号：US11196300

申请日：2005-08-04

Applicant: Qi Qiu ,  Jianping Lu ,  Otto Z. Zhou

Inventor： Qi Qiu ,  Jianping Lu ,  Otto Z. Zhou

IPC: H01J35/14

CPC classification number: B82Y10/00 ,  H01J35/065 ,  H01J2201/30469 ,  H01J2235/062 ,  H01J2235/068 ,  Y10S977/95

Abstract: An x-ray generating device includes at least one field-emission cold cathode having a substrate and incorporating nanostructure-containing material including carbon nanotubes. The device further includes at least one anode target. Associated methods are also described.

Abstract translation: X射线产生装置包括至少一个具有衬底的场致发射冷阴极，并且包括含纳米结构的材料，包括碳纳米管。 该装置还包括至少一个阳极靶。 还描述了相关方法。

公开(公告)号：US20080056432A1

公开(公告)日：2008-03-06

申请号：US11725877

申请日：2007-03-20

Applicant: Jed Douglas Pack ,  Bruno De Man ,  Samit Kumar Basu ,  John Charles Hill ,  Xiaoye Wu ,  Peter Michael Edic

Inventor： Jed Douglas Pack ,  Bruno De Man ,  Samit Kumar Basu ,  John Charles Hill ,  Xiaoye Wu ,  Peter Michael Edic

IPC: H05G1/60

CPC classification number: G06T11/005 ,  A61B6/027 ,  G06T2211/416 ,  H01J2235/068

Abstract: Systems and methods are provided for reconstructing projection data that is mathematically complete or sufficient acquired using a computed tomography (CT) system. In one embodiment, a set of projection data representative of a sampled portion of a cylindrical surface is provided. The set of projection data is reconstructed using a suitable cone-beam reconstruction algorithm. In another embodiment, two or more sets of spatially interleaved helical projection data are processed using helical interpolation. The helically interpolated set of projection data is reconstructed using a two-dimensional axial reconstruction algorithm or a three-dimensional reconstruction algorithm.

Abstract translation: 提供了系统和方法，用于重建使用计算机断层摄影（CT）系统获得的数学上完整或足够的投影数据。 在一个实施例中，提供了一组代表圆柱形表面的采样部分的投影数据。 使用合适的锥束重建算法重建投影数据集。 在另一个实施例中，使用螺旋插值来处理两组或多组空间交错的螺旋投影数据。 使用二维轴向重建算法或三维重建算法重建螺旋插值的投影数据集。

公开(公告)号：US20070237302A1

公开(公告)日：2007-10-11

申请号：US11391152

申请日：2006-03-28

Applicant: Jizhong Chen ,  Sergio Lemaitre ,  Brian Douglas Lounsberry

Inventor： Jizhong Chen ,  Sergio Lemaitre ,  Brian Douglas Lounsberry

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J35/14 ,  H01J2235/068

Abstract: A cathode cup is provided. The cathode cup includes one or more pockets; and one or more filaments associated with the one or more pockets. A same number of pockets as filaments are present. Each pocket is associated with exactly one filament and is configured to have a length that is tailored to a length of the filament. The cathode cup can be used in an X-ray system having an anode and a cathode. A method of electron beam shaping is provided. The method includes the following steps. A computer-simulated model of a cathode cup is created. The model is used to predict focal spot dimensions. The predicted focal spot dimensions are compared to desired focal spot dimensions. The steps of creating, using and comparing are repeated until the predicted focal spot dimensions match the desired focal spot dimensions. A cathode cup is created based on the computer-simulated model.

Abstract translation: 提供阴极杯。 阴极杯包括一个或多个口袋; 以及与所述一个或多个袋相关联的一个或多个细丝。 存在与细丝相同数量的口袋。 每个口袋与正好一个细丝相关联，并且被配置成具有针对长丝长度的长度。 阴极杯可用于具有阳极和阴极的X射线系统中。 提供电子束成形的方法。 该方法包括以下步骤。 创建了阴极杯的计算机模拟模型。 该模型用于预测焦点尺寸。 将预测的焦点尺寸与期望的焦点尺寸进行比较。 重复创建，使用和比较的步骤，直到预测的焦斑尺寸与期望的焦点尺寸匹配。 基于计算机模拟模型创建阴极杯。

公开(公告)号：US07085352B2

公开(公告)日：2006-08-01

申请号：US10710275

申请日：2004-06-30

Applicant: Bruce Matthew Dunham

Inventor： Bruce Matthew Dunham

IPC: H01J35/00

CPC classification number: A61B6/032 ,  A61B6/4014 ,  A61B6/4028 ,  H01J1/30 ,  H01J35/065 ,  H01J2235/068 ,  H05G1/56

Abstract: An electron emitter assembly and a method for generating electron beams are provided. The electron emitter assembly includes a light source configured to emit light. The electron emitter assembly further includes a photo-responsive device operably coupled to an electron emitter device. The photo-responsive device induces the electron emitter device to emit electrons in response to receiving the light. Finally, the electron emitter assembly includes an anode receiving the emitted electrons from the electron emitter device.

Abstract translation: 提供了一种电子发射器组件和用于产生电子束的方法。 电子发射器组件包括被配置为发光的光源。 电子发射器组件还包括可操作地耦合到电子发射器装置的光响应装置。 光响应装置引起电子发射器件响应于接收光而发射电子。 最后，电子发射器组件包括从电子发射器件接收发射的电子的阳极。