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    X-ray tube, particularly rotating bulb x-ray tube
    31.
    发明申请
    X-ray tube, particularly rotating bulb x-ray tube 审中-公开
    X射线管，特别是旋转灯泡的X射线管

    公开(公告)号：US20020186816A1

    公开(公告)日：2002-12-12

    申请号：US10134130

    申请日：2002-04-29

    Inventor： Joerg Freudenberger ,  Erich Hell ,  Detlef Mattern ,  Peter Schardt

    IPC: H01J035/10

    CPC classification number: H01J35/305 ,  H01J2235/162

    Abstract: An x-ray tube has a vacuum housing containing an electron-emitting cathode and an anode on which the electron beam, accelerated with an electrical field, is incident. The x-ray tube contains a magnet system which generates a main magnetic field with spring focus for deflecting and focusing the electron beam such that the focal spot on the incident surface of the anode can be azimuthally varied. A coil is located spatially separate from the main magnetic field and the alignment of the focal spot relative to the incident surface can be influenced therewith. The coil is fashioned and arranged such that a non-uniform magnetic field that effects a parallel alignment of the focal spot in the spring function is generated therewith.

    Abstract translation: X射线管具有包含电子发射阴极和阳极的真空壳体，电子束在其上被电场加速。 X射线管包含磁体系统，其产生具有弹簧聚焦的主磁场，用于偏转和聚焦电子束，使得阳极入射表面上的焦斑可以方位角变化。 线圈位于空间上与主磁场分离，并且焦点相对于入射表面的对准可能受到影响。 线圈被形成并布置成使得在弹簧功能中实现焦斑的平行对准的不均匀磁场。

    X-ray radiator with rotating bulb tube with exteriorly profiled anode to improve cooling
    32.
    发明授权
    X-ray radiator with rotating bulb tube with exteriorly profiled anode to improve cooling 有权
    X射线辐射器带旋转灯泡管，外部异型阳极，以改善冷却

    公开(公告)号：US06426998B1

    公开(公告)日：2002-07-30

    申请号：US09350445

    申请日：1999-07-09

    Applicant: Erich Hell ,  Detleff Mattern ,  Thomas Ohrndorf ,  Peter Schardt

    Inventor： Erich Hell ,  Detleff Mattern ,  Thomas Ohrndorf ,  Peter Schardt

    IPC: H61J3510

    CPC classification number: H05G1/02 ,  H01J35/305 ,  H01J2235/1216 ,  H01J2235/1262 ,  H05G1/025

    Abstract: An x-ray radiator has a housing containing a fluid coolant wherein a rotating bulb x-ray tube is rotatably seated, the rotating bulb x-ray tube having an evacuated vacuum housing containing a cathode and an anode, with the anode forming a wall of the vacuum housing and having an exterior charged by the coolant. The anode has a profiling at its exterior that enlarges the surface area contact between the exterior of the anode and the coolant. The profiling can be in the form of at least one channel proceeding from as a spiral from a central region of the anode toward its periphery.

    Abstract translation: x射线辐射器具有容纳流体冷却剂的壳体，其中旋转灯泡x射线管可旋转地安置，旋转灯泡x射线管具有包含阴极和阳极的抽真空真空壳体，阳极形成壁 真空壳体并具有由冷却剂充电的外部。 阳极在其外部具有轮廓，其扩大阳极外部和冷却剂之间的表面积接触。 轮廓可以是从阳极的中心区域朝向其周边的螺旋形的至少一个通道的形式。

    X-ray tube with flying focus
    33.
    发明授权
    X-ray tube with flying focus 有权
    具有飞行焦点的X射线管

    公开(公告)号：US06292538B1

    公开(公告)日：2001-09-18

    申请号：US09487281

    申请日：2000-01-19

    Applicant: Erich Hell ,  Detlef Mattern ,  Peter Schardt

    Inventor： Erich Hell ,  Detlef Mattern ,  Peter Schardt

    IPC: H01J3530

    CPC classification number: A61B6/4021 ,  H01J35/14 ,  H01J35/305

    Abstract: X-ray tube with flying focus has a magnet system for deflecting and focusing the electron beam, whereby the magnet system including a carrier that is constructed as an iron yoke and that has four pole projections that are arranged around the axis of the electron beam offset from one another by 90°, on which two pairs of coils (z-coils and &phgr;-coils) are arranged so as to be offset from one another 90°. The individual coils of each pair supplied with a common high-frequency alternating current that deflects the electron beam in the &phgr;-and z-directions, respectively, in a pulsed manner.

    Abstract translation: 具有飞行焦点的X射线管具有用于偏转和聚焦电子束的磁体系统，由此磁体系统包括构造为铁轭的载体，并且具有围绕电子束偏移的轴线布置的四个极突起 彼此相差90°，其中两对线圈（z线圈和phi线圈）被布置成彼此偏移90°。 每对的各个线圈分别提供一个共同的高频交流电流，分别以脉冲方式偏转电子束在phi和z方向。

    Low-cost x-ray radiator
    34.
    发明授权
    Low-cost x-ray radiator 失效
    低成本x射线辐射器

    公开(公告)号：US06213639B1

    公开(公告)日：2001-04-10

    申请号：US09391081

    申请日：1999-09-16

    Applicant: Erich Hell ,  Detlef Mattern ,  Thomas Ohrndorf ,  Peter Schardt

    Inventor： Erich Hell ,  Detlef Mattern ,  Thomas Ohrndorf ,  Peter Schardt

    IPC: H01J3510

    CPC classification number: H01J35/305 ,  H01J35/106 ,  H01J2235/1216 ,  H01J2235/1262 ,  H05G1/025 ,  H05G1/04

    Abstract: An x-ray radiator has a rotary-bulb tube, whose vacuum enclosure rotates inside a radiator housing, which is filled with a liquid cooling medium, and a cooling medium conducting body is arranged between the vacuum enclosure and the radiator housing, at a distance from both of these. The cooling medium conducting body produces a flow of the cooling medium along the vacuum enclosure in the inner gap and a return flow of the cooling medium along the radiator housing in the outer gap, promoted by the rotation of the rotary-bulb tube.

    Abstract translation: X射线辐射器具有旋转灯泡管，其真空外壳在散热器壳体内旋转，其中填充有液体冷却介质，并且冷却介质导电体设置在真空外壳和散热器壳体之间，距离 从这两个。 冷却介质导电体沿着内部间隙中的真空外壳产生冷却介质的流动，并且通过旋转灯管的旋转促进冷却介质沿着外部间隙中的散热器壳体的返回流。

    X-RAY TUBE HAVING PLANAR EMITTER AND MAGNETIC FOCUSING AND STEERING COMPONENTS
    37.
    发明申请
    X-RAY TUBE HAVING PLANAR EMITTER AND MAGNETIC FOCUSING AND STEERING COMPONENTS 审中-公开

    公开(公告)号：US20190237286A1

    公开(公告)日：2019-08-01

    申请号：US16036390

    申请日：2018-07-16

    Applicant: VAREX IMAGING CORPORATION

    Inventor： Bradley D. Canfield ,  Colton B. Woodman

    IPC: H01J35/14 ,  H01J35/30 ,  H01J35/06 ,  H05G1/52 ,  H05G1/10

    CPC classification number: H01J35/14 ,  H01J35/06 ,  H01J35/30 ,  H01J35/305 ,  H05G1/10 ,  H05G1/52

    Abstract: An X-ray tube can include: a cathode including an electron emitter that emits an electron beam; an anode configured to receive the emitted electrons of the electron beam; a first magnetic quadrupole between the cathode and the anode; a second magnetic quadrupole between the first magnetic quadrupole and the anode; a magnetic dipole between the cathode and anode; and a power supply system operably coupled with the first magnetic quadrupole, second magnetic quadrupole, and magnetic dipole, the power supply system being configured to: produce a first focusing magnetic quadrupole field at the first magnetic quadrupole; produce a second focusing magnetic quadrupole field at the second magnetic quadrupole; and produce a steering magnetic dipole field at the magnetic dipole configured to deflect the electron beam in order to shift a focal spot of the electron beam on the anode.

    PHOTON COUNTING CT APPARATUS
    38.
    发明申请
    PHOTON COUNTING CT APPARATUS 有权
    照相机CT设备

    公开(公告)号：US20150250444A1

    公开(公告)日：2015-09-10

    申请号：US14633690

    申请日：2015-02-27

    Applicant: KABUSHIKI KAISHA TOSHIBA ,  Toshiba Medical Systems Corporation

    Inventor： Emi TAMURA

    IPC: A61B6/00

    CPC classification number: A61B6/585 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/4035 ,  A61B6/4233 ,  A61B6/4241 ,  A61B6/482 ,  G01D18/00 ,  G01D18/002 ,  G01D18/004 ,  G01D18/006 ,  H01J35/10 ,  H01J35/14 ,  H01J35/24 ,  H01J35/30 ,  H01J35/305 ,  H01J2235/081 ,  H01J2235/086

    Abstract: According to one embodiment, a photon counting CT apparatus includes an X-ray source, a photon counting CT detector, and a calibration unit. The X-ray source includes a cathode configured to generate electrons and an anode including a plurality of targets configured to generate a plurality of characteristic X-rays having different energies. The photon counting CT detector detects X-ray photons generated by the X-ray source. The calibration unit calibrates the gain of the photon counting CT detector based on the correspondence relationship between the photon energies of the plurality of characteristic X-rays and outputs from the photon counting CT detector.

    Abstract translation: 根据一个实施例，光子计数CT装置包括X射线源，光子计数CT检测器和校准单元。 X射线源包括被配置为产生电子的阴极和包括被配置为生成具有不同能量的多个特征X射线的多个靶的阳极。 光子计数CT检测器检测由X射线源产生的X射线光子。 校准单元基于多个特征X射线的光子能量与来自光子计数CT检测器的输出之间的对应关系来校准光子计数CT检测器的增益。

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