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    Phantom and method for the quality assurance of a hadron therapy apparatus
    1.
    发明授权
    Phantom and method for the quality assurance of a hadron therapy apparatus 有权

    公开(公告)号：US11554273B2

    公开(公告)日：2023-01-17

    申请号：US16900133

    申请日：2020-06-12

    申请人： Ion Beam Applications, S.A.

    发明人： Simon Marcelis ,  Séverine Rossomme ,  Gaylor Deroissart ,  Jochen Krimmer

    IPC分类号： A61N5/10

    摘要： The disclosure provides a phantom and method for quality assurance of a hadron therapy apparatus used in the intensity modulated particle therapy mode. The phantom comprises a frame structure comprising a base plate, one or more energy wedges, an energy wedge first face inclined with respect to said base plate and an energy wedge second face perpendicular to said base plate, said one or more energy wedges being mounted on said base plate, a 2D detector; said one or more wedges, and 2D detector being in known fixed positions in relation to said frame structure. Said phantom comprises in addition a Spread-Out Bragg Peak wedge, said SOBP wedge having an SOBP wedge first face inclined with respect to said base plate, and a SOBP wedge second face, perpendicular to said base plate, said SOBP wedge being made of a material having a relative density higher than 1.3 preferably 1.5, more preferably 1.7, the distance between the SOBP wedge first face and SOBP second face varying between the penetration depth of a beam having an energy between the high and low limit energy of the beam of said hadron therapy apparatus. The disclosure also provides a method for determining the compliance of the planned SOBP with the actual SOBP.

    SCINTILLATING DETECTORS FOR QUALITY ASSURANCE OF A THERAPY PHOTON BEAM
    2.
    发明申请
    SCINTILLATING DETECTORS FOR QUALITY ASSURANCE OF A THERAPY PHOTON BEAM 有权

    公开(公告)号：US20210311212A1

    公开(公告)日：2021-10-07

    申请号：US17262066

    申请日：2019-07-22

    申请人： Ion Beam Applications S.A.

    发明人： David Menichelli ,  Timo Hausbeck ,  Lutz Müller

    IPC分类号： G01T1/29 ,  G01T1/203

    摘要： The present disclosure relates to scintillating detector systems for radiation therapy beams. In one implementation, a detector system for evaluating radiation delivered by a radiation beam output from a beam generator may include a phantom enclosing an internal volume and having an outer surface, extending around the internal volume, for exposure to radiation, and an inner surface coated, at least in part, with a scintillating material and facing the internal volume. The system may further include a camera external to the enclosed volume and configured to view at least a portion of the inner surface, through an opening of the hollow phantom, when radiated by the radiation beam. The system may further include at least one processor configured to receive images from the camera and calculate, based on the received images, a spatial dose distribution produced by the radiation delivered by the radiation beam to the hollow phantom.

    Vario-energy electron accelerator
    3.
    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.

    APPARATUS AND METHOD FOR RADIATION THERAPY DEVICE COMMISSIONING AND QUALITY ASSURANCE
    5.
    发明申请
    APPARATUS AND METHOD FOR RADIATION THERAPY DEVICE COMMISSIONING AND QUALITY ASSURANCE 审中-公开

    公开(公告)号：US20180318609A1

    公开(公告)日：2018-11-08

    申请号：US15968699

    申请日：2018-05-01

    申请人： Ion Beam Applications S.A.

    发明人： Salih ARICAN ,  Christian VOGEL

    IPC分类号： A61N5/10

    摘要： This disclosure is related to an apparatus and method for commissioning or performing a quality assurance (QA) verification of a radiation therapy (RT) device. The device may comprise: (a) a motorised water phantom; (b) a RT controller configured for obtaining operation parameters of fields, and causing the RT device to emit a beam according to said operations parameters; (c) a QA controller having a memory for storing a measurements plan, the measurements plan including data defining a sequence of fields, and d) a reference radiation detector adapted and positioned for intercepting said radiation beam and for measuring the dose rate of said radiation beam. The reference radiation detector may be substantially transparent to the radiation beam. The QA controller may include an acquisition interface for acquiring and storing the dose rate from the reference radiation detector. The device may also include a processor configured to check the synchronism between the dose rate from the field radiation detector and the dose rate from the reference radiation detector.

    PARTICLE THERAPY APPARATUS COMPRISING AN MRI
    6.
    发明申请
    PARTICLE THERAPY APPARATUS COMPRISING AN MRI 审中-公开

    公开(公告)号：US20180099160A1

    公开(公告)日：2018-04-12

    申请号：US15727525

    申请日：2017-10-06

    申请人： Ion Beam Applications S.A.

    发明人： Eric FORTON

    IPC分类号： A61N5/10 ,  A61B5/055

    CPC分类号： A61N5/1069 ,  A61B5/055 ,  A61N5/1039 ,  A61N5/1043 ,  A61N5/1049 ,  A61N5/1081 ,  A61N2005/1055 ,  A61N2005/1087 ,  G01R33/00 ,  G01R33/0213

    摘要： The present disclosure relates to a particle therapy apparatus for irradiating a target with a charged particle beam and having a particle accelerator and an isocentric gantry rotatable about an axis. The gantry includes a sequence of bending magnets to successively bend and direct the particle beam towards the isocentre of the gantry. A last bending magnet of the sequence is configured to bend the particle beam in a first plane including the isocentre and making a large angle with the axis. The gantry further includes a first scanning magnet arranged upstream of the last bending magnet and configured to scan the particle beam over the target. The apparatus also includes a magnetic resonance imaging (MRI) system having two main magnet units arranged on both sides of the isocentre and configured to generate a main magnetic field parallel to or coaxial with the axis.