Patents Assigned to Ion Beam Application S.A.
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Patent number: 7860216Abstract: Device for positioning a target volume (112) such, as a phantom or a patient in a radiation therapy apparatus, said apparatus directing a radiation beam (405) towards said target (112), characterized in that it comprises:—a target support (100) whereon the target is immobilized; a two dimensional radiation detector (103) fixed with fixations means (101, 102, 104, 106 107; 301, 302, 304, 305, 306; 208, 209) in a known geometric relationship to said target support (100), said radiation detector (103) being capable of detecting the position of intersection of said radiation beam (105) with said detector (103); correcting means for correcting the relative position of said beam (105) and said target support 100), based on said detected intersection position.Type: GrantFiled: December 12, 2006Date of Patent: December 28, 2010Assignee: Ion Beam Applications S.A.Inventors: Yves Jongen, Rudi Labarbe
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Patent number: 7513193Abstract: The present invention is related to method for irradiating bulk material, particularly for treatment of food products such as grain, characterized in that in the case of a failure of said irradiation, the untreated bulk material is separated from the treated material and subsequently transported back towards the beginning of the process, in order to be treated. The invention allows to avoid re-treatment of large quantities of material, and provides a clear separation between contaminated and uncontaminated parts of the installation.Type: GrantFiled: August 20, 2002Date of Patent: April 7, 2009Assignee: Ion Beam Applications S.A.Inventors: Wickham Allen, Philippe Peltier, Noel Goethals
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Patent number: 7486771Abstract: Method for irradiating in an irradiation chamber products being stored in the form of pallets or in the form of bulk material in appropriate containers by means of a high energy X-ray beam source including the following steps: placing and arranging the products onto two different levels of products, so that a first set of products is placed on an upper level and a second set of products is placed on a lower level; irradiating both sets of products during a first period of time; submitting the products arranged on the two levels to a switch or transposition, so that the set of products arranged on an upper level is arranged on the lower level and vice versa and irradiating during a second period of time the new arrangement formed of the two transposed sets of products.Type: GrantFiled: June 29, 2006Date of Patent: February 3, 2009Assignee: Ion Beam Applications S.A.Inventors: Frederic Stichelbaut, Jean-Louis Bol
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Patent number: 7456591Abstract: The invention concerns a cyclotron for accelerating a charged particle beam circulating in the median plane essentially in the form of two poles inducing a magnetic field and having a so-called axial injector, that is an injector arranged outside the cyclotron substantially along the main axis of the cyclotron and hence perpendicular to the median plane thereof and which is combined with deflecting means which enable the particle beam to be deflected until it is positioned in the median plane. The invention is characterized in that the deflecting means consist of a magnetic deflector.Type: GrantFiled: July 18, 2003Date of Patent: November 25, 2008Assignee: Ion Beam Applications S.A.Inventor: Yves Jongen
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Patent number: 7345291Abstract: The present invention is related to a device for irradiating a patient with a charged particle beam, comprising a number of beam channels attached to a vertical wall, wherein a deflection magnet is present at the end of each channel. This deflection magnet is able to deflect the beam in the vertical plane over a given angle range. The couch whereon the patient is reclining is mobile in the vertical plane, so that the combined movement of the patient, and the variable deflection of the beam allow one point in the patient to be irradiated from several angles in the vertical plane.Type: GrantFiled: April 30, 2003Date of Patent: March 18, 2008Assignee: Ion Beam Applications S.A.Inventor: Mark Kats
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Publication number: 20080023645Abstract: The present invention is related to an irradiation cell for producing a radioisotope of interest through the irradiation of a target material by a particle beam, comprising a metallic insert (2) forming a cavity (7) designed to house the target material and to be closed by an irradiation window, characterized in that said metallic insert (2) comprises at least two separate metallic parts (8,9) of different materials, being composed of at least a first part (8) comprising said cavity (7).Type: ApplicationFiled: February 18, 2005Publication date: January 31, 2008Applicant: Ion Beam Applications, S.A.Inventors: Jean-Claude Amelia, Michel Ghyoot
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Patent number: 7307264Abstract: An irradiation apparatus for irradiating by scanning a target volume according to a predetermined dose profile with a scanning beam of charged particles forming an irradiation spot on said target volume, said apparatus comprising: a beam generating device, a reference generator for computing, from said predetermined dose profile, through a dynamic inverse control strategy, the time evolution of commanded variables, these variables being the beam current I(t), the spot position settings x(t),y(t) and the scanning speed settings vx(t), vy(t), a monitor device having means for detecting at each time (t), the actual spot position as a measured position defined by the values xm(t),ym(t) on the target volume, characterised in that said irradiation apparatus further comprises means for determining the differences ex(t), ey(t) between the measured values xm(t), ym(t) and the spot position settings x(t) and y(t), and means for applying a correction to the scanning speed settings vx(t) and vy(t) depending on said dType: GrantFiled: November 29, 2002Date of Patent: December 11, 2007Assignee: Ion Beam Applications S.A.Inventors: Caterina Brusasco, Bruno Marchand, Jean-François De Le Hoye, Damien Prieels
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Patent number: 7289600Abstract: The present invention is related to process and an apparatus for irradiating products by means of high energy X-ray beam source (1) in an installation having an irradiation chamber (2), said process comprising the following steps, controlled by controlling means: determining the density of the products to be irradiated, in order to irradiate said products as a stack predetermining, on the basis of said density, the optimal size of the product stack able to optimize the throughput of the installation and/or the dose uniformity ratio (DUR), in the irradiation chamber (2), loading products as a stack onto rotation means (3) located in front of the X-ray beam source (1), while rotating the rotation means around a rotation axis (10), irradiating said products from a lateral side of said product stack.Type: GrantFiled: March 18, 2004Date of Patent: October 30, 2007Assignee: Ion Beam Applications S.A.Inventors: Arnold S. Herer, Fréderic Stichelbaut
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Patent number: 7274026Abstract: The present invention is related to an apparatus for irradiating products conveyed on a pallet, comprising a beam source (3) for producing a radiation beam, a shielding wall (4) encompassing an irradiation chamber (2) and a revolving cylindrical door (6) having a recess (8) for holding said pallet, for bringing said pallet in and out of the irradiation chamber (2) wherein said high-energy radiation beam is directed towards a lateral side of said revolving door (6), for irradiating said pallet in said recess (8), or brought before said recess (8). The present invention is also related to a process wherein a product pallet is brought into an irradiation chamber (2) through a revolving cylindrical door (6) having a recess (8), and irradiated while in said recess (8) or in front of said recess (8).Type: GrantFiled: February 13, 2003Date of Patent: September 25, 2007Assignee: Ion Beam Application S.A.Inventors: Jean-Louis Bol, Benoit Mullier, Fréderic Stichelbaut, Glenn Nelson
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Patent number: 7197111Abstract: The present invention is related to a process for irradiation of a product pallet having four vertical faces by a photon beam such as an X-ray beam, a gamma source or similar, consisting in an irradiation procedure comprising the following steps: introducing the product pallet into an irradiation zone according to a horizontal translation movement, submitting said product pallet to said photon beam, the source of which having a vertical movement, the horizontal translation movement of the product pallet and the vertical movement of the beam resulting in the irradiation of a vertical face of said product pallet, moving out said product pallet from the irradiation zone. giving a rotation of substantially 90° to said product pallet using rotation means, repeating said irradiation process until at least the four vertical faces of said product pallet have been irradiated.Type: GrantFiled: December 3, 2001Date of Patent: March 27, 2007Assignee: Ion Beam Applications S.A.Inventors: Graham Rose, Muriel Vander Donckt, Frédéric Stichelbaut, Olivier Gregoire
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Publication number: 20060255285Abstract: The invention relates to a cyclotron which can produce a beam of accelerated charged particles that are intended for the irradiation of at least one target (200). The inventive cyclotron consists of a magnetic circuit which essentially comprises: an electromagnet with at least two poles (1, 1?), namely an upper pole (1) and a lower pole (1?), which are disposed symmetrically in relation to a mid-plane (110) which is perpendicular to the central axis (100) of the cyclotron and which are separated by a gap (120) containing the circulating charged particles and return flux (2) in order to close the aforementioned magnetic circuit; and a pair of main induction coils (5, 5?) which are used to create an essentially-constant main induction field in the gap between poles 1 and 1?.Type: ApplicationFiled: November 14, 2003Publication date: November 16, 2006Applicant: Ion Beam Applications S.A.Inventors: Yves Jongen, Frederic Genin
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Patent number: 7094472Abstract: The invention relates to ethylene polymers that are modified by ionizing radiation, prior to article formation, at a temperature less than the crystalline melt temperature and preferably under ambient atmosphere, as well as articles made from said polymers. The irradiated ethylene polymers exhibit enhanced melt strength, tensile strength, impact resistance, tear strength, adhesion to polar substances and thermal stability, decreased elongation, and lower melt flow index, but are easily processed and converted into and onto articles by conventional technologies including injection molding, extrusion, film and bottle blowing and powder coating.Type: GrantFiled: October 17, 2003Date of Patent: August 22, 2006Assignees: Ion Beam Applications, S.A., Gammatron Pty LTDInventors: Tjaart Andries Du Plessis, Song Cheng, Horst Seute
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Patent number: 7067827Abstract: The present invention is related to an apparatus and method for irradiating a product package, comprising a radiation source directing a radiation beam along a beam direction towards said product package, conveying means for transporting said product package past said radiation source along a transport path, and reflecting means located on at least one side of the plane formed by said beam direction and said transport path. By adjusting the distance and angle of the reflecting means to the conveyor and beam, and improved dose uniformity ratio is obtained.Type: GrantFiled: July 28, 2004Date of Patent: June 27, 2006Assignee: Ion Beam Applications S.A.Inventors: Jean Louis Bol, Olivier Gregoire, Francis Martin, Benoît Mullier, Frédéric Stichelbaut
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Publication number: 20050269497Abstract: The invention concerns a cyclotron for accelerating a charged particle beam circulating in the median plane essentially in the form of two poles inducing a magnetic field and having a so-called axial injector, that is an injector arranged outside the cyclotron substantially along the main axis of the cyclotron and hence perpendicular to the median plane thereof and which is combined with deflecting means which enable the particle beam to be deflected until it is positioned in the median plane. The invention is characterized in that the deflecting means consist of a magnetic deflector.Type: ApplicationFiled: July 18, 2003Publication date: December 8, 2005Applicant: Ion Beam Applications S.A.Inventor: Yves Jongen
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Patent number: 6873123Abstract: The invention concerns a device (10) for regulating the intensity of a beam extracted from a particle accelerator, such as a cyclotron, used for example for protontherapy, said particles being generated from an ion source. The invention is characterized in that it comprises at least: a comparator (90) determining a difference ? between a digital signal IR representing the intensity of the beam measured at the output of the accelerator and a setpoint value IC of the beam intensity: a Smith predictor (80) which determines on the basis of the difference ?, a correct value of the intensity of the beam IP; an inverted correspondence table (40) supplying, on the basis of the corrected value of the intensity of the beam IP, a setpoint value IA for supply arc current from the ion source (20).Type: GrantFiled: June 3, 2002Date of Patent: March 29, 2005Assignee: Ion Beam Applications S.A.Inventors: Bruno Marchand, Bertrand Bauvir
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Patent number: 6806476Abstract: The instant invention is directed to an article irradiation facility that comprises, within a cell, an accelerator for generating a radiation beam and a beam pass conveyor. In order to better control the dose delivered to articles treated at the facility, the current of the radiation beam is slaved to the speed of the beam pass conveyor. The actual (versus requested) speed of the beam pass conveyor is continuously monitored using a variable frequency drive. The drive infers the speed of the beam pass conveyor from changes in the induction, resistance, flux current and/or inertia off the motor for the beam pass conveyor. The drive is positioned outside the cell and eliminates the need for speed sensors within the cell that are susceptible to radiation damage.Type: GrantFiled: May 21, 2002Date of Patent: October 19, 2004Assignee: Ion Beam Applications, S.A.Inventors: Graham Rose, Frank Joseph Groe
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Patent number: 6777689Abstract: An article irradiation system is arranged into an upper level and a lower level. The upper level houses a radiation source used to generate beams of radiation for irradiating articles. The radiation source can emit multiple beams of radiation, for irradiating articles on the upper and the lower levels. The upper level has an upper level shield, arranged as an inner shield and an outer shield, for attenuating radiation generated by the radiation source. The lower level can be disposed below ground level, and a portion of the lower level is covered by the upper level shield, which reduces the shielding requirements for a ceiling of the lower level.Type: GrantFiled: November 16, 2001Date of Patent: August 17, 2004Assignee: Ion Beam Application, S.A.Inventor: Glenn Nelson
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Patent number: 6777692Abstract: The present invention is related to an apparatus and method for irradiating product packages (1). One measures the effective dimension of a product package (1), one processes a product package (1) having everywhere an effective thickness below a predefined threshold with an e-beam source (17), and other packages with either a gas sterilisant device or an X-ray or gamma source. Packages for treating with the X-ray or gamma source are grouped in layers and stacked, in order to optimise the throughput of the apparatus.Type: GrantFiled: May 17, 2002Date of Patent: August 17, 2004Assignee: Ion Beam Applications S.A.Inventor: Yves Jongen
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Patent number: 6770891Abstract: A system for irradiating articles is disclosed. The system has multiple beam paths and is capable of irradiating articles with x-rays or electron beams (e-beams). The system is comprised of a single radiation source producing multiple beam paths. At least one of the beam paths is configured to irradiate articles with x-rays and at least one other beam path is configured to irradiate articles with e-beams. The beam paths are each positioned to scan product carried on conveyors. The x-ray beam paths and e-beam have separate conveyor systems that operates independently from each other.Type: GrantFiled: May 6, 2003Date of Patent: August 3, 2004Assignee: Ion Beam Applications, S.A.Inventor: Graham Thomas Rose
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Patent number: 6753535Abstract: A system for irradiating articles is disclosed. The system has multiple beam paths and is capable of irradiating articles with x-rays or electron beams (e-beams). The system is comprised of a single radiation source producing multiple beam paths. At least one of the beam paths is configured to irradiate articles with x-rays and at least one other beam path is configured to irradiate articles with e-beams. The beam paths are each positioned to scan product carried on conveyors. The x-ray beam paths and e-beam have separate conveyor systems that operates independently from each other.Type: GrantFiled: May 6, 2003Date of Patent: June 22, 2004Assignee: Ion Beam Applications, S.A.Inventor: Graham Thomas Rose