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    CHARGE FILTER MAGNET WITH VARIABLE ACHROMATICITY
    83.
    发明申请
    CHARGE FILTER MAGNET WITH VARIABLE ACHROMATICITY 有权

    公开(公告)号：US20230139138A1

    公开(公告)日：2023-05-04

    申请号：US17514262

    申请日：2021-10-29

    申请人： Axcelis Technologies, Inc.

    发明人： Wilhelm Platow ,  Shu Satoh ,  Neil Bassom

    IPC分类号： H01J37/317 ,  H01L21/265 ,  H01J37/08 ,  H05H9/00

    摘要： An ion implantation system has an ion source to generate an ion beam, and a mass analyzer to define a first ion beam having desired ions at a first charge state. A first linear accelerator accelerates the first ion beam to a plurality of first energies. A charge stripper strips electrons from the desired ions defining a second ion beam at a plurality of second charge states. A first dipole magnet spatially disperses and bends the second ion beam at a first angle. A charge defining aperture passes a desired charge state of the second ion beam while blocking a remainder of the plurality of second charge states. A quadrupole apparatus spatially focuses the second ion beam, defining a third ion beam. A second dipole magnet bends the third ion beam at a second angle. A second linear accelerator accelerates the third ion beam. A final energy magnet bends the third ion beam at a third angle, and wherein an energy defining aperture passes only the desired ions at a desired energy and charge state.

    METHOD FOR USE WITH A RADIOTHERAPY DEVICE
    86.
    发明申请
    METHOD FOR USE WITH A RADIOTHERAPY DEVICE 有权

    公开(公告)号：US20210299478A1

    公开(公告)日：2021-09-30

    申请号：US17250654

    申请日：2019-08-16

    申请人： Elekta Limited

    发明人： Chris Flint ,  Keith Richardson ,  Marcelo Jordao

    IPC分类号： A61N5/10 ,  H05H9/00 ,  H05H7/22 ,  G01M3/28 ,  G08B5/22 ,  G08B21/18

    摘要： Disclosed herein is a method of determining the nature of a fault in a radiotherapy device comprising a linear accelerator. The radiotherapy device is configured to provide therapeutic radiation to a patient. The radiotherapy device comprises a vacuum tube comprising an electron gun, a waveguide configured to accelerate electrons emitted by the electron gun toward a target to produce said radiation, and a flight tube. The electron gun is located at a first end of the vacuum tube and the flight tube is located at a second end of the vacuum tube. The radiotherapy device further comprises a first and a second sensor. The first sensor is configured to provide signals indicative of pressure at a first region inside the vacuum tube and the second sensor is configured to provide signals indicative of pressure at a second region inside the vacuum tube. The first region is closer to the first end of the vacuum tube than the second region is. The method comprises processing a first value derived from signals from the first sensor and a second value derived from signals from the second sensor. The first value is indicative of pressure at the first region inside the vacuum tube, and the second value is indicative of pressure at the second region inside the vacuum tube. Processing the first and second value comprises comparing the first value with a first threshold and comparing the second value with a second threshold; and, based on the processing of the signals, determining that the nature of the fault is associated with the flight tube.

    Dielectric wall accelerator and applications and methods of use
    88.
    发明授权
    Dielectric wall accelerator and applications and methods of use 有权

    公开(公告)号：US10529455B2

    公开(公告)日：2020-01-07

    申请号：US15037437

    申请日：2014-11-21

    申请人： Martin A. Stuart

    发明人： Martin A. Stuart

    IPC分类号： G21H1/04 ,  G21C1/02 ,  G21G4/06 ,  H05H9/00 ,  H01J9/14 ,  H05H7/08 ,  H05H7/22 ,  G21C7/00 ,  G21C7/36 ,  H05G2/00

    摘要： Provided are a plurality of embodiments, including, but not limited to, a device for generating efficient low and high average power output Gamma Rays via relativistic particle bombardment of element targets using an efficient particle injector and accelerator at low and high average power levels suitable for element transmutation and power generation with an option for efficient remediation of radioisotope release into any environment. The devices utilize diamond or diamond-like carbon materials and active cooling for improved performance. Also provided are a nuclear reactor and a decontamination device using such a device.

    CONFIGURABLE LINEAR ACCELERATOR FREQUENCY CONTROL SYSTEM AND METHOD
    89.
    发明申请
    CONFIGURABLE LINEAR ACCELERATOR FREQUENCY CONTROL SYSTEM AND METHOD 审中-公开

    公开(公告)号：US20190357342A1

    公开(公告)日：2019-11-21

    申请号：US16147459

    申请日：2018-09-28

    申请人： Varex Imaging Corporation

    发明人： John C. Turner

    IPC分类号： H05H7/02 ,  H05H9/00 ,  H01J29/52

    摘要： Some embodiments include a system comprising: an RF source configured to generate an RF signal; an RF frequency control circuit coupled to the RF source and configured to adjust a frequency of the RF signal; an accelerator structure configured to accelerate a particle beam in response to the RF signal; and control logic configured to: receive a plurality of settings over time for the RF source; adjust the RF signal in response to the settings; and adjust a setpoint of the RF frequency control circuit in response to the settings.