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    LOW-DOSE RADIOGRAPHIC IMAGING SYSTEM
    5.
    发明申请
    LOW-DOSE RADIOGRAPHIC IMAGING SYSTEM 有权
    低剂量放射成像系统

    公开(公告)号：US20150325401A1

    公开(公告)日：2015-11-12

    申请号：US14491825

    申请日：2014-09-19

    申请人： Rapiscan Systems, Inc.

    发明人： Willem Gerhardus Johannes Langeveld ,  Joseph Bendahan ,  Tsahi Gozani ,  Michael King ,  Dan Strellis ,  Edward Franco ,  Krystal R. Alfonso

    IPC分类号： H01J35/14 ,  G01V5/00

    CPC分类号： H01J35/14 ,  G01V5/0016 ,  G21K1/093 ,  H01J35/08 ,  H01J35/30 ,  H01J35/32 ,  H01J37/14 ,  H01J37/141 ,  H01J37/147 ,  H01J37/1472 ,  H01J37/1475 ,  H01J37/3178 ,  H01J2235/081 ,  H01J2235/086 ,  H05G1/52 ,  H05G2/00

    摘要： An inspection system for scanning cargo and vehicles is described which employs an X-ray source that includes an electron beam generator, for generating an electron beam; an accelerator for accelerating said electron beam in a first direction; and, a first set of magnetic elements for transporting said electron beam into a magnetic field created by a second set of magnetic elements, wherein the magnetic field created by said second set of magnetic elements causes said electron beam to strike a target such that the target substantially only generates X-rays focused toward a high density section in the scanned object, which is estimated in a second pulse using image data captured by a detector array in a first pulse. The electron beam direction is optimized by said X-ray source during said second pulse to focus X-rays towards said high density section based on said image data in said first pulse.

    摘要翻译： 描述了用于扫描货物和车辆的检查系统，其使用包括电子束发生器的X射线源，用于产生电子束; 用于在第一方向上加速所述电子束的加速器; 以及用于将所述电子束传送到由第二组磁性元件产生的磁场中的第一组磁性元件，其中由所述第二组磁性元件产生的磁场使所述电子束撞击靶，使得所述靶 基本上仅产生朝向扫描对象中的高密度部分聚焦的X射线，其以第一脉冲中由检测器阵列捕获的图像数据在第二脉冲中估计。 在所述第二脉冲期间，由所述X射线源优化电子束方向，以基于所述第一脉冲中的所述图像数据将X射线聚焦到所述高密度部分。

    X-RAY TUBE HAVING PLANAR EMITTER WITH TUNABLE EMISSION CHARACTERISTICS
    6.
    发明申请
    X-RAY TUBE HAVING PLANAR EMITTER WITH TUNABLE EMISSION CHARACTERISTICS 有权
    具有可排放特性的平面发射体的X射线管

    公开(公告)号：US20150187530A1

    公开(公告)日：2015-07-02

    申请号：US14660607

    申请日：2015-03-17

    申请人： VARIAN MEDICAL SYSTEMS, INC.

    发明人： Bradley D. Canfield ,  Colton B. Woodman

    IPC分类号： H01J1/304 ,  H01J35/06 ,  G06F17/50 ,  H01J9/02

    CPC分类号： H01J35/14 ,  H01J35/06 ,  H01J35/30 ,  H01J35/305 ,  H05G1/10 ,  H05G1/52

    摘要： An electron emitter can include: a plurality of elongate rungs connected together end to end from a first emitter end to a second emitter end in a plane so as to form a planar pattern; a plurality of corners, wherein each elongate rung is connected to another elongate rung through a corner having a corner apex and an opposite corner nadir; a first gap between adjacent non-connected elongate rungs, wherein the first gap extends from the first emitter end to a middle rung; a second gap between adjacent non-connected elongate rungs, wherein the second gap extends from the second emitter end to the middle rung, wherein the first gap does not intersect the second gap; and one or more cutouts at one or more of the corners of the plurality of corners between the corner apex and corner nadir or at the corner nadir.

    摘要翻译： 电子发射器可以包括：多个细长梯级，从平面上的第一发射端到第二发射端端对端连接在一起，以形成平面图形; 多个角部，其中每个细长梯级通过具有角顶点和相对的角落最低点的拐角连接到另一细长梯级; 相邻的非连接细长梯级之间的第一间隙，其中所述第一间隙从所述第一发射端延伸到中间梯级; 相邻的非连接细长梯级之间的第二间隙，其中所述第二间隙从所述第二发射端延伸到所述中间梯级，其中所述第一间隙不与所述第二间隙相交; 以及在角顶点和角落最低点之间的多个角落的一个或多个拐角处的一个或多个切口或在角落最低点处。

    X-ray source with increased operating life
    7.
    发明授权
    X-ray source with increased operating life 有权
    X射线源具有更长的使用寿命

    公开(公告)号：US08995622B2

    公开(公告)日：2015-03-31

    申请号：US13373554

    申请日：2011-11-18

    申请人： David L. Adler ,  Wenbing Yun ,  Thomas Anthony Case

    发明人： David L. Adler ,  Wenbing Yun ,  Thomas Anthony Case

    IPC分类号： H01J35/08 ,  H05G1/52 ,  H01J35/14

    CPC分类号： H01J35/08 ,  H01J35/14 ,  H01J2235/087 ,  H01J2235/186 ,  H05G1/52

    摘要： An x-ray source is described. During operation of the x-ray source, an electron source emits a beam of electrons. This beam of electrons is focused to a spot on a target by a magnetic focusing lens. In response to receiving the beam of focused electrons, the target provides a transmission source of x-rays. Moreover, a repositioning mechanism selectively repositions the beam of focused electrons to different locations on a surface of the target based on a feedback parameter associated with operation of the x-ray source. This feedback parameter may be based on: an intensity of the x-rays output by the x-ray source; a position of the x-rays output by the x-ray source; an elapsed time during operation of the x-ray source; a cross-sectional shape of the x-rays output by the x-ray source; and/or a spot size of the x-rays output by the x-ray source.

    摘要翻译： 描述了x射线源。 在x射线源的操作期间，电子源发射电子束。 该电子束通过磁聚焦透镜聚焦到目标上的点。 响应于接收聚焦电子束，目标提供x射线的透射源。 此外，重新定位机构基于与x射线源的操作相关联的反馈参数，有选择地将聚焦电子束重新定位在目标表面上的不同位置。 该反馈参数可以基于：由x射线源输出的x射线的强度; 由x射线源输出的x射线的位置; 在x射线源的操作期间经过的时间; 由x射线源输出的x射线的横截面形状; 和/或由x射线源输出的x射线的斑点大小。

    Voltage Supply for Electrical Focusing of Electron Beams
    8.
    发明申请
    Voltage Supply for Electrical Focusing of Electron Beams 有权
    电子束聚焦电压

    公开(公告)号：US20150084502A1

    公开(公告)日：2015-03-26

    申请号：US14494337

    申请日：2014-09-23

    申请人： Josef Deuringer ,  Jürgen Oelschlegel

    发明人： Josef Deuringer ,  Jürgen Oelschlegel

    IPC分类号： H03F3/21 ,  H01J29/58 ,  H02M3/158

    CPC分类号： H03F3/211 ,  H01J29/58 ,  H02M1/088 ,  H02M3/158 ,  H03F3/08 ,  H03F3/2173 ,  H03F2200/93 ,  H03F2203/21142 ,  H05G1/52

    摘要： A rapidly regulable high-voltage supply for the electrical focusing of an electron beam using a high-voltage final stage is provided. The high-voltage final stage includes a plurality of amplification elements that are interconnected in a series configuration with a first high-voltage connection, and a potential dividing chain including a series of potential dividing elements. The potential dividing chain is interconnected with the first high-voltage connection and has a signal interconnection with the plurality of amplification elements, so that when a voltage is applied across the potential dividing chain, a difference in voltages between a signal input to any amplification element of the plurality of amplification elements and a signal input to a next amplification element of the plurality of amplification elements has a same sign.

    摘要翻译： 提供了用于使用高压末级的电子束的电聚焦的快速调节的高压电源。 高电压最终级包括以串联配置与第一高压连接互连的多个放大元件和包括一系列电势分压元件的电势分压链。 电势分压链与第一高压连接互连，并且与多个放大元件具有信号互连，使得当跨越电势分压链施加电压时，输入到任何放大元件的信号之间的电压差 并且输入到所述多个放大元件的下一个放大元件的信号具有相同的符号。

    X-ray source with selective beam repositioning
    9.
    发明授权
    X-ray source with selective beam repositioning 有权
    具有选择性束重新定位的X射线源

    公开(公告)号：US08831179B2

    公开(公告)日：2014-09-09

    申请号：US13066679

    申请日：2011-04-21

    申请人： David L. Adler ,  Wenbing Yun ,  Thomas Anthony Case

    发明人： David L. Adler ,  Wenbing Yun ,  Thomas Anthony Case

    IPC分类号： H01J35/02 ,  H01J35/08 ,  H01J35/14

    CPC分类号： H01J35/08 ,  H01J35/14 ,  H01J2235/087 ,  H01J2235/186 ,  H05G1/52

    摘要： During operation of an x-ray source, an electron source emits a beam of electrons. Moreover, a repositioning mechanism selectively repositions the beam of electrons on a surface of a target based on a feedback parameter, where a location of the beam of electrons on the surface of the target defines a spot size of x-rays output by the x-ray source. In response to receiving the beam of electrons, the target provides a transmission source of the x-rays. Furthermore, a beam-parameter detector provides the feedback parameter based on a physical characteristic associated with the beam of electrons and/or the x-rays output by the x-ray source. This physical characteristic may include: at least a portion of an optical spectrum emitted by the target, secondary electrons emitted by the target based on a cross-sectional shape of the beam of electrons; an intensity of the x-rays output by the target; and/or a current from the target.

    摘要翻译： 在x射线源的操作期间，电子源发射电子束。 此外，重新定位机构基于反馈参数选择性地重新定位靶的表面上的电子束，其中目标表面上的电子束的位置限定由x轴输出的x射线的光斑尺寸， 射线源。 响应于接收到电子束，目标提供x射线的透射源。 此外，光束参数检测器基于与电子束相关联的物理特性和/或由x射线源输出的x射线提供反馈参数。 该物理特性可以包括：由目标发射的光谱的至少一部分，基于电子束的横截面形状由靶发射的二次电子; 目标输出的x射线的强度; 和/或来自目标的电流。

    X-ray tube and method for examining a target by scanning with an electron beam
    10.
    发明授权
    X-ray tube and method for examining a target by scanning with an electron beam 有权
    X射线管和用电子束扫描检查靶的方法

    公开(公告)号：US08360640B2

    公开(公告)日：2013-01-29

    申请号：US12521622

    申请日：2007-12-28

    申请人： Alfred Reinhold

    发明人： Alfred Reinhold

    IPC分类号： G01D18/00 ,  H01J35/14

    CPC分类号： H01J35/24 ,  H01J35/14 ,  H01J2235/08 ,  H05G1/265 ,  H05G1/34 ,  H05G1/52

    摘要： The invention relates to an X-ray tube, especially a microfocus X-ray tube (2), comprising means (18) for orienting an electron beam (10) towards a target (4). A control device (20) is used to control the means for orienting the electron beam (10) towards the target (4) in such a way that the electron beam (10) scans the target (4), in addition to a measuring device (22) for measuring the intensity of the target current which flows to different scanning sites when the target (4) is scanned by the electron beam (10), or a measuring variable dependent on the target current, and an evaluation device (24) for associating each measured value of the target flow with the corresponding scanning site. Said X-ray tube enables the easy and economical implementation of a method for checking the operability of the target (4).

    摘要翻译： 本发明涉及一种X射线管，特别是微焦X射线管（2），其包括用于使电子束（10）朝向靶（4）定向的装置（18）。 控制装置（20）用于控制用于使电子束（10）朝向目标（4）定向的装置，使得电子束（10）扫描靶（4），除了测量装置 （22），用于测量当通过电子束（10）扫描目标（4）时流动到不同扫描位置的目标电流的强度或取决于目标电流的测量变量，以及评估装置（24） 用于将目标流的每个测量值与相应的扫描位置相关联。 所述X射线管使得能够容易且经济地实现用于检查目标（4）的可操作性的方法。