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12 条记录 (耗时 0.014 秒)

    Vario-energy electron accelerator
    1.
    发明授权
    Vario-energy electron accelerator 有权

    公开(公告)号：US10743401B2

    公开(公告)日：2020-08-11

    申请号：US16698149

    申请日：2019-11-27

    申请人： Ion Beam Applications S.A.

    发明人： Michel Abs ,  Jeremy Brison ,  Willem Kleeven

    IPC分类号： H05H13/10 ,  G21K1/093 ,  G21K5/04 ,  H05H7/02 ,  H05H7/18 ,  H05H7/08 ,  H05H7/04

    摘要： A vario-energy electron accelerator includes a resonant cavity consisting of a closed conductor, an electron source injecting a beam of electrons into the resonant cavity, an RF system coupled to the resonant cavity and generating an electric field in the resonant cavity, magnet units centred on a mid-plane and generating a field in a deflecting chamber in fluid communication with the resonant cavity, the magnetic field deflecting along a first deflecting trajectory of adding length an electron beam exiting the resonant cavity along a first radial trajectory to reintroduce it into the resonant cavity along a second radial trajectory, an outlet for extracting along an extraction path an accelerated electron beam from the resonant cavity towards a target, wherein at least one of the magnet units is adapted for modifying the first deflecting trajectory to a second deflecting trajectory, allowing a variation of the energy of the electron beam.

    SYNCHROCYCLOTRON FOR EXTRACTING BEAMS OF VARIOUS ENERGIES
    2.
    发明申请
    SYNCHROCYCLOTRON FOR EXTRACTING BEAMS OF VARIOUS ENERGIES 有权

    公开(公告)号：US20210282257A1

    公开(公告)日：2021-09-09

    申请号：US17193997

    申请日：2021-03-05

    申请人： Ion Beam Applications S.A.

    发明人： Jérôme Mandrillon ,  Willem Kleeven ,  Jarno Van De Walle

    IPC分类号： H05H13/02 ,  H05H7/04 ,  H05H7/00

    摘要： A synchrocyclotron for extracting charged particles accelerated to an extraction energy includes a magnetic unit comprising N valley sectors and N hill sectors, and configured for creating z-component of a main magnetic characterized by a radial tune of the successive orbits. The synchrocyclotron includes a first instability coil unit and a second instability coil unit configured for creating a field bump of amplitude increasing radially. The amplitude of the field bump may be varied to reach the value of the offset amplitude at the average instability onset radius. The offset amplitude may be the minimal amplitude of the field bump at the average instability onset radius required for sufficiently offsetting the center of the orbit of average instability onset radius to generate a resonance instability to extract the beam of charged particle at the average instability onset radius.

    Synchrocyclotron for extracting beams of various energies
    4.
    发明授权
    Synchrocyclotron for extracting beams of various energies 有权

    公开(公告)号：US11160159B2

    公开(公告)日：2021-10-26

    申请号：US17193997

    申请日：2021-03-05

    申请人： Ion Beam Applications S.A.

    发明人： Jérôme Mandrillon ,  Willem Kleeven ,  Jarno Van De Walle

    IPC分类号： H05H13/02 ,  H05H7/04 ,  H05H7/00

    摘要： A synchrocyclotron for extracting charged particles accelerated to an extraction energy includes a magnetic unit comprising N valley sectors and N hill sectors, and configured for creating z-component of a main magnetic characterized by a radial tune of the successive orbits. The synchrocyclotron includes a first instability coil unit and a second instability coil unit configured for creating a field bump of amplitude increasing radially. The amplitude of the field bump may be varied to reach the value of the offset amplitude at the average instability onset radius. The offset amplitude may be the minimal amplitude of the field bump at the average instability onset radius required for sufficiently offsetting the center of the orbit of average instability onset radius to generate a resonance instability to extract the beam of charged particle at the average instability onset radius.

    Compact electron accelerator comprising permanent magnets
    5.
    发明授权
    Compact electron accelerator comprising permanent magnets 有权

    公开(公告)号：US10271418B2

    公开(公告)日：2019-04-23

    申请号：US15805509

    申请日：2017-11-07

    申请人： Ion Beam Applications S.A.

    发明人： Michel Abs ,  Willem Kleeven ,  Jarno Van De Walle ,  Jérémy Brison ,  Denis Deschodt

    IPC分类号： H05H7/04 ,  H05H7/18 ,  H05H13/10 ,  H05H7/02 ,  H05H7/08 ,  H05H13/00

    摘要： An electron accelerator is provided. The electron accelerator comprises a resonant cavity comprising a hollow closed conductor, an electron source configured to inject a beam of electrons, and an RF system. The electron accelerator further comprises a magnet unit, comprising a deflecting magnet. The deflecting magnet is configured to generate a magnetic field in a deflecting chamber in fluid communication with the resonant cavity by a deflecting window. The magnetic field is configured to deflect an electron beam emerging out of the resonant cavity through the deflecting window along a first radial trajectory in the mid-plane (Pm) and to redirect the electron beam into the resonant cavity through the deflecting window towards the central axis along a second radial trajectory. The deflecting magnet is composed of first and second permanent magnets positioned on either side of the mid-plane (Pm).

    Gradient corrector for cyclotron
    8.
    发明授权
    Gradient corrector for cyclotron 有权

    公开(公告)号：US10278277B2

    公开(公告)日：2019-04-30

    申请号：US15594534

    申请日：2017-05-12

    申请人： Ion Beam Applications, S.A.

    发明人： Willem Kleeven ,  Szymon Zaremba

    IPC分类号： H05H13/00 ,  H05H9/00 ,  H05H7/10 ,  H05H7/04 ,  H01F7/02 ,  H05H7/00 ,  H05H13/08 ,  H01F3/10 ,  H01F7/20

    摘要： The present disclosure relates to a magnet pole for an isochronous sector-focused cyclotron having hill and valley sectors alternatively distributed around a central axis, Z, each hill sector having an upper surface bounded by four edges: an upper peripheral edge, an upper central edge, a first and a second upper lateral edges, and a peripheral surface extending from the upper peripheral edge to a lower peripheral line. The upper peripheral edge of at least one hill sector may further include a concave portion with respect to the central axis defining a recess extending at least partially over a portion of the peripheral surface of the corresponding hill sector.

    Compact electron accelerator comprising first and second half shells
    9.
    发明授权
    Compact electron accelerator comprising first and second half shells 有权

    公开(公告)号：US10249400B2

    公开(公告)日：2019-04-02

    申请号：US15805647

    申请日：2017-11-07

    申请人： Ion Beam Applications S.A.

    发明人： Michel Abs ,  Willem Kleeven ,  Jarno Van De Walle ,  Jérémy Brison ,  Denis Deschodt

    IPC分类号： G21K5/04 ,  H05H7/18 ,  H05H13/10 ,  G21K1/093

    摘要： An electron accelerator comprising a resonant cavity, an electron source, an RF system, and at least one magnet unit is provided. The resonant cavity further comprises a hollow closed conductor and the electron source is configured to radially inject a beam of electrons into the cavity. The RF system is configured to generate an electric field to accelerate the electrons along radial trajectories. The at least one magnet unit further comprises a deflecting magnet configured to generate a magnetic field that deflects an electron beam emerging out of the resonant cavity along a first radial trajectory and redirects the electron beam into the resonant cavity along a second radial trajectory. The resonant cavity further comprises a first half shell, a second half shell, and a central ring element.