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    X-ray generator
    62.
    发明授权
    X-ray generator 失效
    X光发生器

    公开(公告)号：US5995586A

    公开(公告)日：1999-11-30

    申请号：US41814

    申请日：1998-03-12

    Applicant: Andreas Jahnke

    Inventor： Andreas Jahnke

    IPC: G21K5/04 ,  H01J35/00 ,  H05G2/00 ,  H01J35/30

    CPC classification number: H01J35/00 ,  H05G2/00

    Abstract: An x-ray generator has a beam guidance system including an air coil and a toroidal solenoid coil, a ring anode surrounding the patient to be examined and arranged axially offset relative to the beam guidance, and individually driveable electron-optical components couple the electrons, which orbit on a circular specified path in the magnetic dipole field of the air coil, out of that path, deflect them in the axial direction, and focus them onto a segment of the ring anode allocated to the respectively activated out-coupling element.

    Abstract translation: X射线发生器具有射束引导系统，其包括空气线圈和环形螺线管线圈，围绕要检查的患者的环形阳极和相对于束引导轴向偏移地布置，以及单独驱动的电子 - 光学部件耦合电子， 其在空气线圈的磁偶极子场中的圆形指定路径上轨道，在该路径之外，在轴向方向上偏转它们，并将它们聚焦到分配给分别被激活的外耦合元件的环形阳极的段上。

    Method and apparatus for producing x-rays
    64.
    发明授权
    Method and apparatus for producing x-rays 失效
    用于生产X射线的方法和装置

    公开(公告)号：US5504796A

    公开(公告)日：1996-04-02

    申请号：US347656

    申请日：1994-11-30

    Applicant: Enio F. Da Silveira ,  Kevin B. Ray ,  Emile A. Schweikert ,  Melvin A. Park ,  William D. James

    Inventor： Enio F. Da Silveira ,  Kevin B. Ray ,  Emile A. Schweikert ,  Melvin A. Park ,  William D. James

    IPC: H01J35/00 ,  H01J35/14

    CPC classification number: H01J35/00

    Abstract: A portable x-ray tube 68 for producing x-rays, the tube 68 having an energy source 74 which directs energetic particles or photons at an electron multiplier 80 coupled to the energy source 74. A voltage source 84 applies a multiplier voltage across the electron multiplier 80. When triggered by the energy source 74, the electron multiplier 80 creates a multitude of electrons 28 directed towards a target anode 90 that receives the electrons and produces x-rays 30. The target anode 90 is coupled at a voltage difference of at least 3 kV relative to the electron multiplier 80 so as to define an electron acceleration region 32 between the electron multiplier 80 and the target anode 90. The target anode 90 contains an element having an atomic number greater than 11. A low pressure enclosure 70 contains the electron multiplier 80 and the target anode 90. The low pressure enclosure 70 includes a window 92 for allowing the x-rays 30 to pass through substantially unchanged.

    Abstract translation: 用于产生x射线的便携式x射线管68，管68具有能量源74，能量源74将能量粒子或光子引导到耦合到能量源74的电子倍增器80.电压源84在电子两端施加乘法器电压 当由能量源74触发时，电子倍增器80产生指向接收电子并产生x射线30的目标阳极90的多个电子28.目标阳极90以一个电压差 相对于电子倍增器80至少3kV，以便在电子倍增器80和目标阳极90之间限定电子加速区32.目标阳极90包含原子序数大于11的元素。低压外壳70包含 电子倍增器80和目标阳极90.低压外壳70包括用于允许X射线30基本上不变通过的窗口92。

    Portable X-ray source and method for radiography
    65.
    发明授权
    Portable X-ray source and method for radiography 失效
    便携式X射线源和射线照相方法

    公开(公告)号：US5355399A

    公开(公告)日：1994-10-11

    申请号：US935528

    申请日：1992-08-25

    Applicant: Konstantin S. Golovanivsky ,  Valeri D. Dugar-Zhabon

    Inventor： Konstantin S. Golovanivsky ,  Valeri D. Dugar-Zhabon

    IPC: H01J35/00 ,  H01J35/14 ,  H05G2/00

    CPC classification number: H05G2/001 ,  A23L3/01 ,  A23L3/263 ,  A61L2/082 ,  C02F1/307 ,  H01J35/00 ,  H01J35/14 ,  A61L2202/24 ,  C02F2303/04

    Abstract: A small, low cost, low power, and portable x-ray source that produces an x-ray flux that is sufficient to produce high quality x-ray images on suitable x-ray sensitive films. The source includes a vacuumated chamber that is filled with a heavy atomic weight gas at low pressure and an x-ray emitter. The chamber is in a magnetic field and an oscillating electric field and generates an Electron Cyclotron Resonance (ECR) plasma having a ring of energetic electrons inside the chamber. The electrons bombard the x-ray emitter which in turn produces x-ray radiation in a given direction. A pair of magnetic members generate an axisymmetric magnetic mirror trap inside the chamber. The chamber may be nested within a microwave resonant cavity and between the magnets, or the chamber and microwave cavity may be a single composite structure. The source is useful to make x-ray photographs virtually anywhere and may be battery powered.

    Abstract translation: 一种小型，低成本，低功耗和便携式x射线源，其产生足以在合适的x射线敏感膜上产生高质量x射线图像的x射线通量。 该源包括在低压下填充重原子量气体的抽真空室和x射线发射器。 腔室处于磁场和振荡电场，并产生在室内具有高能电子环的电子回旋加速器共振（ECR）等离子体。 电子轰击了x射线发射器，它又在给定的方向产生X射线辐射。 一对磁性构件在室内产生轴对称磁反射器阱。 腔室可以嵌套在微波谐振腔内和磁体之间，或者室和微波腔可以是单个复合结构。 来源对于在任何地方进行x射线照片都是有用的，可能是电池供电的。

    X-ray generator
    66.
    发明授权
    X-ray generator 失效
    X光发生器

    公开(公告)号：US4757524A

    公开(公告)日：1988-07-12

    申请号：US841398

    申请日：1986-03-19

    Applicant: Virgil R. Laul

    Inventor： Virgil R. Laul

    IPC: H01J35/00

    CPC classification number: H01J35/00

    Abstract: An improved X-ray tube including a coaxial tube with a center conductor isolated by a cylindrical insulator from a continuous annular interior conductor disposed about the insulator. The interior conductor includes sharp edged (high gradient) longitudinally aligned gaps in its surface with these gaps further generally aligned opposite one or more high atomic number targets deployed within the interior of a partially evacuated housing. A high voltage, high frequency AC or rapidly pulsed DC electrical excitation source is connected across the center and interior conductors to develop a high voltage electric field across the conductor gaps. A high voltage single or multiple pulse generating circuit is further connected across the interior conductor and the target to produce X-rays.

    Abstract translation: 一种改进的X射线管，其包括具有中心导体的同轴管，所述中心导体通过圆柱形绝缘体与设置在绝缘体周围的连续环形内部导体隔离。 内部导体在其表面上包括锋利边缘（高梯度）纵向对准的间隙，这些间隙通常与部署在部分抽出的壳体内部的一个或多个高原子序数目对准。 高压，高频交流或快速脉冲的直流电激励源连接在中心和内部导体之间，以在导体间隙上形成高压电场。 高压单脉冲或多脉冲发生电路进一步连接在内导体和靶之间以产生X射线。

    X-ray source
    67.
    发明授权
    X-ray source 失效
    X射线源

    公开(公告)号：US4723263A

    公开(公告)日：1988-02-02

    申请号：US860414

    申请日：1986-05-07

    Applicant: Curtis Birnbach ,  Jay Tanner ,  Richard Heese

    Inventor： Curtis Birnbach ,  Jay Tanner ,  Richard Heese

    IPC: H05G1/00 ,  G21K1/02 ,  H01J35/00 ,  H01J35/04 ,  H01J35/08 ,  H01J35/14 ,  H01S4/00 ,  H05G2/00 ,  H01J35/06

    CPC classification number: G21K1/02 ,  H01J35/00 ,  H01J35/04 ,  H01J35/08 ,  H01J35/14 ,  H01S4/00 ,  H05G2/00 ,  H01J2235/087

    Abstract: An X-ray source with a cathode formed as a cylindrical electrode having a hollow central anode tube on its axis, with a grid surrounding the anode and interposed between the anode and cathode. The central anode tube is hollow and filled with a working medium. A high negative voltage is applied to the cathode, but the flow of electrons to the anode is blocked by the grid which is held near cathode potential. After a space charge is created at the grid by electrons from the cathode, a very short pulse to ground is applied to one end of the grid, yielding a relativistic wave of potential which propagates along the axial length of the grid. This wave of potential releases the electrons from the cathode, which flow directly to the anode. The impingement of the electrons on the tubular anode produces X-rays from the interior surface of the anode tube. These X-rays, together with the impinging electrons, pump the working medium along the length of the anode, causing a population inversion leading to the release of coherent X-rays in a wave synchronized with the propagating grid potential which exits the structure at the far end of the anode. The X-ray source may consist of identical units coupled together in series to provide a high power X-ray beam, and may be configured in other than cylindrical shapes depending on the output desired.

    Abstract translation: 具有阴极的X射线源形成为圆柱形电极，在其轴上具有中空中心阳极管，围绕阳极的栅格并且介于阳极和阴极之间。 中央阳极管是中空的并且填充有工作介质。 对阴极施加高的负电压，但是电子流向阳极的电流被保持在阴极电位附近的栅极阻挡。 在栅极通过电子从阴极产生空间电荷之后，将非常短的脉冲对地施加到栅格的一端，产生相对论的电势波沿着栅格的轴向长度传播。 这种电势波从阴极释放电子，其直接流到阳极。 电子在管状阳极上的撞击从阳极管的内表面产生X射线。 这些X射线与撞击的电子一起沿着阳极的长度泵送工作介质，导致总体反转，导致在与传播网格电位相反的传播网格电位同步的波中释放相干X射线 阳极的远端。 X射线源可以由串联耦合在一起的相同单元组成，以提供高功率X射线束，并且可以根据所需的输出而被配置为除了圆柱形外形。

    Methods of steering and focusing ion and electron beams
    68.
    发明授权
    Methods of steering and focusing ion and electron beams 失效
    转向和聚焦离子和电子束的方法

    公开(公告)号：US4694457A

    公开(公告)日：1987-09-15

    申请号：US813452

    申请日：1985-12-26

    Applicant: John C. Kelly ,  Glenn W. Kentwell

    Inventor： John C. Kelly ,  Glenn W. Kentwell

    IPC: H01J37/147 ,  G21K1/093 ,  H01J3/14 ,  H01J35/00 ,  H01J49/20 ,  H01S3/09 ,  H05H7/00 ,  H01S3/00

    CPC classification number: H01J37/14 ,  G21K1/093 ,  H01J3/14 ,  H01J35/00 ,  H01J49/20 ,  H01S3/0903 ,  H05H7/00 ,  H01J2237/31701

    Abstract: An ion or electron beam is steered or focussed by a circular magnetic field produced by passing a large electrical current through a straight conducting wire, the magnetic field being co-axial with the wire. Annular beams of charged particles coaxial with the straight wire can be focussed onto a circular spot or, depending upon the entry radius of the annular beam and the magnetic field strength, can be induced to follow a looping trajectory. The effect of the steering or focussing system can be enhanced by the provision of a cylindrical conductor which is co-axial with the straight conducting wire and maintained at a voltage sufficient to produce the desired particle trajectory such that the particle beam passes between the wire and the cylindrical conductor. The beam steering or focussing systems is applicable to the fields of beam current density intensification, ion implantation, ion separation and free electron lasers.

    Abstract translation: 离子或电子束被通过使大电流通过直线导线产生的圆形磁场而被引导或聚焦，该磁场与电线同轴。 与直线同轴的带电粒子的环状光束可以聚焦到圆形点上，或者根据环形光束的入射半径和磁场强度可以被诱导跟随循环轨迹。 转向或聚焦系统的效果可以通过提供与直线导电线同轴并保持在足以产生所需粒子轨迹的电压的圆柱形导体来增强，使得粒子束在导线和 圆柱形导体。 光束转向或聚焦系统适用于束流密度增强，离子注入，离子分离和自由电子激光等领域。

    Radiation filter
    70.
    发明授权
    Radiation filter 失效
    辐射过滤器

    公开(公告)号：US4300055A

    公开(公告)日：1981-11-10

    申请号：US152349

    申请日：1980-05-22

    Applicant: Leonhard Taumann

    Inventor： Leonhard Taumann

    IPC: H01J35/00 ,  G21K1/10 ,  G21K3/00 ,  G21K5/02 ,  G21K5/04 ,  G21K5/08 ,  H01J35/08 ,  H05H7/00 ,  H01J35/02 ,  H05H7/12

    CPC classification number: H01J35/00 ,  G21K1/10

    Abstract: The invention relates to an electron accelerator including an evacuated acceleration tube, a target exposed to the electron beam, an electron absorber following the target in beam direction, a collimator and a compensation body arranged therein centered on the axis of symmetry thereof. In such electron accelerators, used in radiotherapy, the soft radiation component is to be suppressed as much as possible. To this end the invention provides a filter plate made of heavy metal beyond the electron absorber, while the compensation body is made of a material of comparatively low atomic number. The filter plate may be inserted between the electron absorber and the compensation body. The target may be provided on the side of the electron absorber facing the acceleration tube.

    Abstract translation: 本发明涉及一种电子加速器，其包括抽真空的加速管，暴露于电子束的靶，沿射束方向的靶之后的电子吸收体，准直器和以其对称轴为中心的补偿体。 在放射治疗中使用的这种电子加速器中，尽可能地抑制软辐射成分。 为此，本发明提供了一种由超过电子吸收体的重金属制成的过滤板，而补偿体由原子序数较低的材料制成。 滤板可插入电子吸收体和补偿体之间。 靶可以设置在面对加速管的电子吸收体侧。

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