中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

206 records (took 0.016 seconds)

    51.
    发明专利
    未知

    公开(公告)号：CH587560A5

    公开(公告)日：1977-05-13

    申请号：CH844675

    申请日：1975-06-30

    Applicant: IBM

    IPC: H01J37/305 ,  H01J37/147 ,  H01J37/304 ,  H01L21/027 ,  H01J3/08 ,  H01J3/12

    Abstract: A beam of charged particles has its alignment and brightness alternately controlled in accordance with the current of the beam. The measurements of the current and any corrections for alignment or brightness are made when the beam is not applied to a target.

    52.
    发明专利
    未知

    公开(公告)号：DE2518688A1

    公开(公告)日：1975-11-13

    申请号：DE2518688

    申请日：1975-04-26

    Applicant: GEN ELECTRIC

    Inventor： HEITING ROBERT FRANCIS ,  RATE EDWARD TAYLOR

    IPC: H01J35/14 ,  H05G1/52 ,  H01J3/08 ,  H01J35/04

    Abstract: An electron tube such as an x-ray tube has an anode target spaced from an electron beam emitting structure which include a cathode, focusing electrode and a control electrode. The control electrode surface nearest the anode is contoured to conform with selected equipotential values in the electrostatic field between the cathode and anode which equipotential is a predetermined percentage of the total cathode to anode voltage. When the control electrode is operated at a corresponding positive potential, the electrons follow certain trajectories and focus on the anode. Means are provided for varying the control voltage through a range from beam cut-off voltage to various positive voltages that permit control of the focal spot size regardless of the selected beam current and selected anode voltage.

    SYSTEMS AND METHODS OF CONTROLLING A PROTON BEAM OF A PROTON TREATMENT SYSTEM
    54.
    发明公开
    SYSTEMS AND METHODS OF CONTROLLING A PROTON BEAM OF A PROTON TREATMENT SYSTEM 审中-公开
    系统以及用于控制质子治疗系统，质子束方法

    公开(公告)号：EP3047500A1

    公开(公告)日：2016-07-27

    申请号：EP14846289.8

    申请日：2014-09-19

    Applicant: Pronova Solutions LLC

    Inventor： ANFEROV, Vladimir

    IPC: H01J3/08

    CPC classification number: A61N5/1077 ,  A61N2005/1087 ,  H05H7/001 ,  H05H2007/002 ,  H05H2007/004 ,  H05H2007/048

    Abstract: Systems and methods of controlling a proton beam in a proton therapy system, the system including a proton beam delivery system including at least one achromatic beamline having a first power setting to direct a proton beam having a first predetermined range of proton beam energies to a target treatment area, and a second power setting to direct a proton beam having a second predetermined range of proton beam energies to the target treatment area, and a power changing unit configured to control an energy level of the proton beam and a power setting of the at least one achromatic beamline such that the power changing unit changes the power setting of the at least one achromatic beamline between the first power setting and the second power setting based on changes in proton beam energy that occur within the first predetermined range of proton beam energies.

    IMAGE GATING USING AN ARRAY OF REFLECTIVE ELEMENTS
    56.
    发明公开
    IMAGE GATING USING AN ARRAY OF REFLECTIVE ELEMENTS 审中-公开
    PICTURE门控使用一个阵列在反射元件

    公开(公告)号：EP2764528A1

    公开(公告)日：2014-08-13

    申请号：EP12837338.8

    申请日：2012-09-23

    Applicant: Elbit Systems Ltd.

    Inventor： SCNEIDER, Ron ,  ZOHAR, Eyal

    IPC: H01J3/08

    CPC classification number: G02B26/08 ,  G01S7/4816 ,  G01S17/107 ,  G01S17/89 ,  G02B26/0833

    Abstract: A device for image gating using an array of reflective elements is provided herein. The device includes an array of reflective elements, wherein each one of the reflective elements is movable within a range of a plurality of tilt positions, wherein the array is located at an image plane of the device, wherein the array is perpendicular to an optical axis of the device. The device further includes a control unit configured to control the reflective elements such that in at least some of the tilt positions, the reflective elements reflect the radiant flux at said image plane, to one or more projection planes. A gradual rotation of the reflective elements along the plurality of tilt positions result in a gradual increase or decrease in the intensity of the image reflected from the array of reflective elements while maintaining the image integrity.

    LASER GAPPING OF MAGNETIC CORES
    57.
    发明公开
    LASER GAPPING OF MAGNETIC CORES 审中-公开
    VERFAHREN ZUR SPALTUNG MITTELS LASER VON MAGNETKERNEN

    公开(公告)号：EP1212774A4

    公开(公告)日：2002-08-14

    申请号：EP00905805

    申请日：2000-01-31

    Applicant: DATATRONIC DISTRIB INC

    Inventor： RUND LARRY D ,  HEWITT RICHARD P ,  SIGAFOOS STUART O

    IPC: H01F3/14 ,  H01F41/02 ,  H01J3/08

    CPC classification number: H01F41/0206 ,  H01F3/14

    Abstract: A method for gapping a ferrite core (10) by coating the core with a stabilizing material (32), fracturing the core with a laser beam (44) thereby creating one or more gaps (47) in the cores magnetic field, optionally opening the fracture to obtain a desired inductance, and then sealing the core.

    Abstract translation: 一种通过用稳定材料（32）涂覆铁芯使铁氧体磁心（10）间隔开的方法，用激光束（44）使铁心破裂，由此在铁心磁场中形成一个或多个间隙（47），可选地打开 断裂以获得所需的电感，然后密封芯。

    A RADIATION DOSE CONTROL DEVICE FOR CONTROLLING AN ELECTRON BEAM PULSE DELIVERED DURING IORT
    58.
    发明专利
    A RADIATION DOSE CONTROL DEVICE FOR CONTROLLING AN ELECTRON BEAM PULSE DELIVERED DURING IORT 未知

    公开(公告)号：CA2874387A1

    公开(公告)日：2013-11-28

    申请号：CA2874387

    申请日：2013-05-22

    Applicant: S I T SORDINA IORT TECHNOLOGIES SPA

    Inventor： FELICI GIUSEPPE ,  IACOBONI VINCENZO ,  CICCOTELLI ALESSIA ,  DE ANGELIS FABIO

    IPC: A61N5/10 ,  H01J3/08

    Abstract: A radiation dose control device for controlling an electron beam pulse delivered during a therapy session of IORT (Intra-Operative Radiation Therapy), comprising a PWM system configured to provide an electron injection at a DC voltage at each pulse of an input electron beam (FE) sent to the input of an electronic gun (G) of a linear accelerator or linac (AL), so that the output electron beam (FU) exiting said linac (AL) is highly stable, and so that a variation of the radiation dose of said output electron beam (FU) results only from the variation of the delivery time of said input electron beam (FE); said dose variation of the output electron beam (FU) is thus directly proportional to said delivery time of the input electron beam (FE).

Patent Agency Ranking