利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

10 条记录 (耗时 0.032 秒)

    In-line beam scanning system
    3.
    发明授权
    In-line beam scanning system 失效
    在线光束扫描系统

    公开(公告)号：US4687936A

    公开(公告)日：1987-08-18

    申请号：US810398

    申请日：1985-12-17

    申请人： Raymond D. McIntyre ,  Karl L. Brown

    发明人： Raymond D. McIntyre ,  Karl L. Brown

    IPC分类号： G21K1/093 ,  G21K5/10 ,  H01J3/32 ,  H01J33/00 ,  G01K1/08 ,  H01J3/14

    CPC分类号： H01J3/32 ,  G21K1/093 ,  G21K5/10 ,  H01J33/00

    摘要： A system for scanning a beam of charged-particles across a target is described which compensates for energy dispersion in the beam. A time-varying magnet with circular pole pieces is used to sweep the beam left to right. Two wedge-shaped magnet dipoles, one on each side of the center line are used to bend the beam parallel to the center line and compensate for beam energy dispersion.

    摘要翻译： 描述了用于扫描穿过靶的带电粒子束的系统，其补偿光束中的能量分散。 具有圆形极片的时变磁体用于从左到右扫掠光束。 使用两个楔形磁偶极子，中心线每侧一个，用于将光束平行于中心线弯曲并补偿光束能量散射。

    X-ray treatment machine having means for reducing secondary electron skin dose
    4.
    发明授权
    X-ray treatment machine having means for reducing secondary electron skin dose 失效
    具有减少二次电子皮肤剂量的装置的X射线处理机

    公开(公告)号：US3969629A

    公开(公告)日：1976-07-13

    申请号：US558392

    申请日：1975-03-14

    申请人： Raymond D. McIntyre

    发明人： Raymond D. McIntyre

    IPC分类号： A61N5/10 ,  G21K1/08 ,  G21K1/10 ,  G01J1/00

    CPC分类号： G21K1/10 ,  A61N5/10 ,  G21K1/08

    摘要： In an x-ray treatment machine a charged particle accelerator or cobalt source is provided for producing a field of high energy x-ray radiation for application to a body, for treatment thereof. The radiation machine includes collimators and field shaping structures for shaping the field of x-ray radiation applied to the body. The high energy x-ray radiation intercepted by the field shaping and collimating structures produces high energy secondary electrons by a number of different atomic processes. These energetic secondaries contaminate the shaped radiation field applied to the body being treated. The contaminating high energy electrons, if not eliminated, substantially increase the dosage of radiation delivered to the surface of the body. However, electron deflecting means, such as magnet structures, are provided for interposing in the electron contaminated field of x-ray radiation, so as to provide an electron deflecting flux for deflecting the contaminating electrons and reducing the dose due to these electrons by spreading them out more uniformly over the treated surface. In addition, an electron absorbing screen is interposed in the secondary electron contaminated radiation field for further absorbing the unwanted high energy secondary electrons.

    摘要翻译： 在X射线处理机中，提供带电粒子加速器或钴源以产生用于施用于身体的高能x射线辐射场，用于治疗。 辐射机包括准直仪和场整形结构，用于对施加到身体的X射线辐射场进行成形。 由场成形和准直结构截获的高能x射线辐射通过许多不同的原子过程产生高能二次电子。 这些有活力的次要污染施加到被处理物体的成形辐射场。 污染的高能电子（如果不消除）大大增加了传递到身体表面的辐射剂量。 然而，提供诸如磁体结构的电子偏转装置用于插入在x射线辐射的电子污染场中，以便提供电子偏转通量，用于偏转污染电子并通过扩散它们减少由于这些电子引起的剂量 在处理过的表面上更均匀地排出。 此外，在二次电子污染的辐射场中插入电子吸收屏，以进一步吸收不想要的高能二次电子。

    Method and apparatus for producing radioactive materials for medical treatment using x-rays produced by an electron accelerator
    5.
    发明授权
    Method and apparatus for producing radioactive materials for medical treatment using x-rays produced by an electron accelerator 失效
    使用由电子加速器产生的x射线来生产用于医疗的放射性物质的方法和装置

    公开(公告)号：US06907106B1

    公开(公告)日：2005-06-14

    申请号：US09379439

    申请日：1999-08-23

    申请人： Raymond D McIntyre ,  Stanley W Johnsen ,  Marcel Marc ,  Michelangelo Delfino ,  Edward Seppi

    发明人： Raymond D McIntyre ,  Stanley W Johnsen ,  Marcel Marc ,  Michelangelo Delfino ,  Edward Seppi

    IPC分类号： G21G1/12 ,  G21G4/08

    CPC分类号： G21G1/12 ,  G21G4/08

    摘要： An apparatus and method for irradiating target objects, especially medical stents for in vivo implantation. A linear accelerator provides a high energy electron beam that impinges upon and is received by an x-ray conversion target. The x-ray conversion target is activated by either a static or dynamically moveable electron beam to generate and emit an x-ray flux so as to efficiently intercept the target object. The x-ray flux is directed to the target object for a desired time period and is of sufficiently high energy to efficiently impart radioactive properties to the target object. Alternatively, the target object is positioned within the path of the x-ray flux or is translated within the path during irradiation. Mechanical transport assemblies such as a carousel, rotational and/or linear translator and/or movement tube system also may be provided.

    摘要翻译： 用于照射目标物体的装置和方法，特别是用于体内植入的医用支架。 线性加速器提供冲击并由X射线转换目标接收的高能电子束。 X射线转换目标由静态或动态可移动的电子束激活，以产生和发射X射线通量，以有效地拦截目标物体。 x射线通量被引导到目标物体所需的时间段，并且具有足够高的能量以有效地赋予目标物体放射性。 或者，目标物体位于X射线通量的路径内，或者在照射期间在路径内平移。 还可以提供诸如转盘，旋转和/或线性平移器和/或运动管系统之类的机械输送组件。

    In-line electron beam energy monitor and control
    6.
    发明授权
    In-line electron beam energy monitor and control 失效
    在线电子束能量监测和控制

    公开(公告)号：US4877961A

    公开(公告)日：1989-10-31

    申请号：US263084

    申请日：1988-10-26

    申请人： Raymond D. McIntyre ,  Stanley W. Johnsen

    发明人： Raymond D. McIntyre ,  Stanley W. Johnsen

    IPC分类号： H05H7/00

    CPC分类号： H05H7/00

    摘要： A beam of charged particles is scattered by a thin foil and the flux at two angles .theta..sub.1 and .theta..sub.2, is sampled to yield an exponential function of the respective energy difference, E(.theta..sub.2)-E(.theta..sub.1). For .theta..sub.1 =0.degree., a signal representative of the energy stability of the beam is obtained and compared with a reference to form an error signal for application to the accelerator for stabilizing the beam energy and/or providing an energy interlock.

    Automatic steering of a high velocity beam of charged particles
    10.
    发明授权
    Automatic steering of a high velocity beam of charged particles 失效
    带电粒子的高速光束的自动转向

    公开(公告)号：US3955089A

    公开(公告)日：1976-05-04

    申请号：US516703

    申请日：1974-10-21

    申请人： Raymond D. McIntyre ,  Jay D. Wood

    发明人： Raymond D. McIntyre ,  Jay D. Wood

    IPC分类号： A61N5/10 ,  G01T1/24 ,  G21K1/08 ,  H01J47/02 ,  G01K1/08

    CPC分类号： H01J47/02 ,  A61N5/1048 ,  G01T1/185 ,  G21K1/08

    摘要： In a high energy X-ray therapy machine, an accelerator accelerates a beam of electrons to energies of several MEV. The electron beam is directed, generally via a beam deflector, onto an X-ray target to produce X-rays for treating a patient. The accelerator and beam deflector are often carried within a rotatable gantry structure, movable for radiating the patient through a series of angular positions or ports. A plurality of ionization chamber radiation detectors are disposed in the radiation field surrounding the beam path of the accelerated electron beam. Ionization current signals are compared from a plurality of the detectors to derive an error signal determinative of a deviation of the beam from an intended beam path. The error signal is utilized to energize beam steering coils for steering the beam along the predetermined beam path. A sample and hold circuit is provided for sampling and holding the error signal to allow interruption of the beam for extended periods of time as may be encountered in the prescribed therapy treatment, while maintaining the proper beam steering conditions.

    摘要翻译： 在高能X射线治疗机中，加速器将电子束加速到几个MEV的能量。 通常通过光束偏转器将电子束定向到X射线靶上，以产生用于治疗患者的X射线。 加速器和射束偏转器通常携带在可旋转机架结构内，可移动以通过一系列角度位置或端口辐射患者。 多个电离室辐射检测器设置在围绕加速电子束的光束路径的辐射场中。 电离电流信号与多个检测器进行比较，以导出确定光束与预期光束路径的偏差的误差信号。 误差信号用于激励用于沿着预定光束路径转向光束的光束操纵线圈。 提供采样和保持电路用于采样和保持误差信号，以允许在规定的治疗治疗中可能遇到的延长的时间段中断束，同时保持适当的光束转向条件。