Patents by Inventor Michel Abs

Michel Abs has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10271418
    Abstract: 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).
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: April 23, 2019
    Assignee: Ion Beam Applications S.A.
    Inventors: Michel Abs, Willem Kleeven, Jarno Van De Walle, Jérémy Brison, Denis Deschodt
  • Patent number: 10249400
    Abstract: 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.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: April 2, 2019
    Assignee: Ion Beam Applications S.A.
    Inventors: Michel Abs, Willem Kleeven, Jarno Van De Walle, Jérémy Brison, Denis Deschodt
  • Publication number: 20180279499
    Abstract: In accordance with the embodiments of the present disclosure, a rack comprising a frame having first vertical posts on a first side and second vertical posts on a second side, between which a plurality of RF amplifier modules are mounted, is provided. The RF power outputs of the RF amplifier modules are connected to inputs of an RF power combiner to deliver a combined RF power output. The RF power combiner is arranged at least partially in at least one of a first volume between the first vertical posts of the frame or a second volume between the second vertical posts of the frame, thereby reducing a footprint of the rack.
    Type: Application
    Filed: February 23, 2018
    Publication date: September 27, 2018
    Applicant: Ion Beam Applications S.A.
    Inventors: Michel Abs, Denis Joassin
  • Patent number: 10064264
    Abstract: 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. The upper surface of at least one hill sector may further include: a recess extending over a length between a proximal end and a distal end along a longitudinal axis intersecting the upper peripheral edge and the upper central edge. The recess may be separate from the first and second upper lateral edges over at least 80% of its length, and a pole insert having a geometry fitting in the recess may be positioned in, and reversibly coupled to the recess.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 28, 2018
    Assignee: Ion Beam Applications S.A.
    Inventors: Michel Abs, Szymon Zaremba
  • Publication number: 20180130568
    Abstract: 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.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 10, 2018
    Applicant: Ion Beam Applications S.A.
    Inventors: Michel ABS, Willem KLEEVEN, Jarno VAN DE WALLE, Jérémy BRISON, Denis DESCHODT
  • Publication number: 20180132342
    Abstract: 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).
    Type: Application
    Filed: November 7, 2017
    Publication date: May 10, 2018
    Applicant: Ion Beam Applications S.A.
    Inventors: Michel ABS, Willem KLEEVEN, Jarno VAN DE WALLE, Jérémy BRISON, Denis DESCHODT
  • Patent number: 9961757
    Abstract: 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. The upper peripheral edge of a hill sector may be an arc of circle whose center is offset with respect to the central axis, and whose radius, Rh, is not more than 85% of a distance, Lh, from the central axis to a midpoint of the upper peripheral edge. Furthermore, the midpoint may be equidistant to the first and second upper distal ends.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: May 1, 2018
    Assignee: Ion Beam Applications S.A.
    Inventors: Willem Kleeven, Michel Abs
  • Patent number: 9907153
    Abstract: The present disclosure relates to compact isochronous sector-focused cyclotrons having reduced dimensions and weight compared with state of the art cyclotrons of same energies. In one implementation, a cyclotron may include two pole magnets facing each other in a chamber defined by a yoke having base plates and flux return yokes forming a lateral wall of the chamber. The magnet poles may include between three and eight hill sectors alternating with a same number of valley sectors distributed about a central axis. The lip of the abyssal opening may be positioned at a distance from the corresponding valley peripheral edge. The flux return yoke may have a thickness in the portions facing valley sectors, such that the ratio of the product of the distance times the thickness to the square of the distance of the peripheral edge to the central axis is less than 5%.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: February 27, 2018
    Assignee: Ion Beam Applications S.A.
    Inventors: Michel Abs, Sébastien De Neuter
  • Publication number: 20170332473
    Abstract: 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. The upper surface of at least one hill sector may further include: a recess extending over a length between a proximal end and a distal end along a longitudinal axis intersecting the upper peripheral edge and the upper central edge. The recess may be separate from the first and second upper lateral edges over at least 80% of its length, and a pole insert having a geometry fitting in the recess may be positioned in, and reversibly coupled to the recess.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Michel Abs, Szymon Zaremba
  • Publication number: 20170332475
    Abstract: 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. The upper peripheral edge of a hill sector may be an arc of circle whose center is offset with respect to the central axis, and whose radius, Rh, is not more than 85% of a distance, Lh, from the central axis to a midpoint of the upper peripheral edge. Furthermore, the midpoint may be equidistant to the first and second upper distal ends.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Willem Kleeven, Michel Abs
  • Publication number: 20170332474
    Abstract: The present disclosure relates to compact isochronous sector-focused cyclotrons having reduced dimensions and weight compared with state of the art cyclotrons of same energies. In one implementation, a cyclotron may include two pole magnets facing each other in a chamber defined by a yoke having base plates and flux return yokes forming a lateral wall of the chamber. The magnet poles may include between three and eight hill sectors alternating with a same number of valley sectors distributed about a central axis. The lip of the abyssal opening may be positioned at a distance from the corresponding valley peripheral edge. The flux return yoke may have a thickness in the portions facing valley sectors, such that the ratio of the product of the distance times the thickness to the square of the distance of the peripheral edge to the central axis is less than 5%.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Michel Abs, Sébastien De Neuter
  • Patent number: 9818573
    Abstract: The present invention is related to an apparatus for transporting a charged particle beam. The apparatus may include means for scanning the charged particle beam on a target, a dipole magnet arranged upstream of the means for scanning, at least three quadrupole lenses arranged between the dipole magnet and the means for scanning and means for adjusting the field strength of said at least three quadrupole lenses in function of the scanning angle of the charged particle beam. The apparatus can be made at least single achromatic.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: November 14, 2017
    Assignee: ION BEAM APPLICATIONS S.A.
    Inventors: Michel Abs, Szymon Zaremba, Willem Kleeven
  • Patent number: 9775228
    Abstract: Disclosed embodiments include an electron accelerator, having a resonant cavity having an outer conductor and an inner conductor; an electron source configured to generate and to inject a beam of electrons transversally into the resonant cavity; a radio frequency (RF) source coupled to the resonant cavity and configured to: energize the resonant cavity with an RF power at a nominal RF frequency, and generate an electric field into said resonant cavity that accelerates the electrons of the electron beam a plurality of times into the cavity and according to successive and different transversal trajectories; and at least one deflecting magnet configured to bend back the electron beam that emerges out of the cavity and to redirect the electron beam towards the cavity.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: September 26, 2017
    Assignee: Ion Beam Applications S.A.
    Inventor: Michel Abs
  • Patent number: 9355784
    Abstract: A variable rotating capacitor or RotCo 5 that can be connected via a transmission line 3 to the dee 2 of a synchrocyclotron 1 so as to adjust a resonant frequency of the synchrocyclotron as a function of time and which comprises a cylindrical rotor 10 and a cylindrical stator 20 that are coaxial with the Z axis. The rotor comprises a plurality of circumferentially-distributed rotor electrodes 11 extending parallel to its rotation axis Z. The stator comprises a plurality of circumferentially-distributed stator electrodes 21 extending parallel to the rotation axis Z. Each stator electrode 21 consists of a single metal plate and all said plates are distributed over one and the same stator circumference 25. This makes it possible for the RF currents in the electrodes to be better distributed and thus reduces the local overheating. The present invention also relates to a synchrocyclotron comprising such a RotCo.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: May 31, 2016
    Assignee: Ion Beam Applications, SA
    Inventor: Michel Abs
  • Publication number: 20160113104
    Abstract: Disclosed embodiments include an electron accelerator, having a resonant cavity having an outer conductor and an inner conductor; an electron source configured to generate and to inject a beam of electrons transversally into the resonant cavity; a radio frequency (RF) source coupled to the resonant cavity and configured to: energize the resonant cavity with an RF power at a nominal RF frequency, and generate an electric field into said resonant cavity that accelerates the electrons of the electron beam a plurality of times into the cavity and according to successive and different transversal trajectories; and at least one deflecting magnet configured to bend back the electron beam that emerges out of the cavity and to redirect the electron beam towards the cavity.
    Type: Application
    Filed: May 15, 2014
    Publication date: April 21, 2016
    Inventor: Michel ABS
  • Patent number: 9237640
    Abstract: RF device (1) able to generate an RF acceleration voltage in a synchrocyclotron. The device comprises a resonant cavity (2) formed by a grounded conducting enclosure (5) and enveloping a conducting pillar (3) to a first end of which an accelerating electrode (4) is linked. A rotary variable capacitor (10) is mounted in the conducting enclosure at a second end of the pillar, opposite from the first end, comprising at least one fixed electrode (stator) (11) and a rotor (13) exhibiting a rotation shaft (14) supported and guided in rotation by galvanically isolating bearings (20), said rotor (13) comprising one moveable electrode (12) possibly facing the stator (11). When the shaft (14) rotates, the stator and the moveable electrode together form a variable capacitance whose value varies cyclically with time. The rotor (13) is galvanically isolated from the conducting enclosure (5) and from the pillar (3). The stator (11) is connected to the second end of the pillar (3) or to the conducting enclosure (5).
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: January 12, 2016
    Assignee: Ion Beam Applications
    Inventors: Michel Abs, Jean-Claude Amelia
  • Publication number: 20150123005
    Abstract: The present invention is related to an apparatus for transporting a charged particle beam. The apparatus may include means for scanning the charged particle beam on a target, a dipole magnet arranged upstream of the means for scanning, at least three quadrupole lenses arranged between the dipole magnet and the means for scanning and means for adjusting the field strength of said at least three quadrupole lenses in function of the scanning angle of the charged particle beam. The apparatus can be made at least single achromatic.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventors: Michel Abs, Szymon Zaremba, Willem Kleeven
  • Patent number: 8946659
    Abstract: An apparatus for transporting a charged particle beam is provided. The apparatus may include: means for scanning the charged particle beam on a target, a dipole magnet arranged upstream of the means for scanning, at least three quadrupole lenses arranged between the dipole magnet and the means for scanning, and means for adjusting the field strength of at least three quadrupole lenses in function of the scanning angle of the charged particle beam. The apparatus can be made at least single achromatic.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: February 3, 2015
    Assignee: Ion Beam Applications S.A.
    Inventors: Michel Abs, Szymon Zaremba, Willem Kleeven
  • Patent number: 8896238
    Abstract: The present invention relates to a circular particle accelerator capable of modulating the particle beam current exiting the circular particle accelerator. The circular particle accelerator includes: an ion source for generating the particle beam; Dee electrode and counter-Dee electrode separated from each other by gaps for accelerating the particle beam, the counter-Dee electrode being grounded; a generator capable of applying an alternating high voltage to the Dee electrode, so as it is possible to have an electric field between the gaps; means for measuring the current intensity of the particle beam exiting the circular particle accelerator. It also comprises a regulator capable of modulating the Dee electrodes voltage amplitude (VD) by comparing a given set point (I0) of the current intensity of the particle beam and the measured value of the current intensity (I?M) of the particle beam.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: November 25, 2014
    Assignee: Ion Beam Applications S.A.
    Inventor: Michel Abs
  • Publication number: 20140320006
    Abstract: RF device (1) able to generate an RF acceleration voltage in a synchrocyclotron. The device comprises a resonant cavity (2) formed by a grounded conducting enclosure (5) and enveloping a conducting pillar (3) to a first end of which an accelerating electrode (4) is linked. A rotary variable capacitor (10) is mounted in the conducting enclosure at a second end of the pillar, opposite from the first end, comprising at least one fixed electrode (stator) (11) and a rotor (13) exhibiting a rotation shaft (14) supported and guided in rotation by galvanically isolating bearings (20), said rotor (13) comprising one moveable electrode (12) possibly facing the stator (11). When the shaft (14) rotates, the stator and the moveable electrode together form a variable capacitance whose value varies cyclically with time. The rotor (13) is galvanically isolated from the conducting enclosure (5) and from the pillar (3). The stator (11) is connected to the second end of the pillar (3) or to the conducting enclosure (5).
    Type: Application
    Filed: November 13, 2012
    Publication date: October 30, 2014
    Applicant: Ion Beam Applications
    Inventors: Michel Abs, Jean-Claude Amelia