Radiation Controlling Means Patents (Class 250/505.1)
  • Patent number: 9333376
    Abstract: A system for calibrating a charged particle pencil beam includes a first pixelated detector, a second pixelated detector, a beam stop, and a diagnostics system. The first and second pixelated detectors measure the pencil beam at positions proximal and/or distal to an isocenter plane. The beam stop is configured to detect an energy level of the pencil beam. The diagnostics system is configured to transmit a signal to request a generation of the charged particle pencil beam at different settings. The diagnostics system is also configured to update a calibration parameter for each setting based on the data received from the pixelated detectors and the beam stop.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: May 10, 2016
    Assignee: Pyramid Technical Consultants Inc.
    Inventors: R. Paul Boisseau, John Gordon, William P. Nett
  • Patent number: 9320480
    Abstract: An image processing method for the 3D display of a patient's organ in which a surgical instrument is positioned, using a medical imaging system comprising a rotating C-arm able to be positioned in at least two angular positions, the C-arm comprising a radiation source at one of its ends, a detector at the other of its ends arranged facing the radiation source, and a collimator arranged between the radiation source and the detector and defining an illumination zone, characterized in that the collimator is adjusted according to the angular position of the rotating C-arm to determine the illumination zone so that the radiation only passes through a region surrounding the surgical instrument.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: April 26, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Sebastien Gorges, Luca Bozzelli
  • Patent number: 9299469
    Abstract: An improved radiation window comprises a film permeable to radiation disposed on a support structure. The support structure comprises a primary transmissive area comprising a plurality of support members defining a plurality of apertures for radiation to pass through; a flange disposed around the periphery of the primary transmissive area having generally greater mechanical rigidity than the primary transmissive area; and a transition region disposed between, and contiguous with, the primary transmissive area and the flange; the transition region having generally greater mechanical rigidity than the primary transmissive area and generally lesser mechanical rigidity than the flange, thereby providing an intermediate rigidity transition between the dissimilar rigidities of the primary transmissive area and the flange. A radiation detection system comprises a sensor configured to detect radiation, disposed behind such an improved radiation window.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: March 29, 2016
    Inventors: Mark Larson, Michael Lines, Erik Bard
  • Patent number: 9291582
    Abstract: An adjustable collimator for shaping a beam of particles, such as for purposes of inspecting contents of a container. The adjustable collimator has an obscuring element substantially opaque to passage of the particles in a propagation direction that is radial with respect to the axis of rotation of a ring of apertures. A gap in the obscuring element may be characterized by a length taken along a long dimension and a jaw spacing taken along narrow dimension, and at least one of the length of the gap and the jaw spacing is subject to adjustment, either manual or automatic. The adjustable collimator may be disposed either inside or outside the ring of apertures, and, in some embodiments, the jaw spacing may be a function of distance along the long dimension relative to an edge of the gap.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 22, 2016
    Assignee: American Science and Engineering, Inc.
    Inventors: Lee Grodzins, Jeffrey R. Schubert, Omar Al-Kofahi, Peter J. Rothschild
  • Patent number: 9291583
    Abstract: An X-ray fluorescence analyzer is provided which comprises: (1) an X-ray source selected to produce an intense X-ray beam, (2) a first optical element that focuses the X-ray beam produced by the X-ray source onto a sample and selects X-rays of a desired energy, (3) an energy resolving detector, and (4) a second optical element that receives fluorescent X-rays emitted from elements in the sample and focuses a selected energy range of said fluorescent X-rays onto said energy resolving detector. Each of the first and second optical elements includes a crystal component. The X-ray fluorescence analyzer is configured such that: (i) the X-ray source has a spot size dimensioned so that it is substantially in a field of view of the first optical element, and (ii) the first optical element focuses the X-ray beam emitted by the X-ray source onto an area of the sample that corresponds to a field-of-view of the second optical element.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: March 22, 2016
    Assignee: THE COMMONWEALTH OF AUSTRALIA COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Yves Leon Van Haarlem, James Tickner
  • Patent number: 9274065
    Abstract: The present specification discloses a high speed scanning system for scanning cargo carried by rail. The system uses a two-dimensional X-ray sensor array with, in one embodiment, a cone-beam X-ray geometry. The pulse rate of X-ray source is modulated based on the speed of the moving cargo to allow a distance travelled by the cargo between X-ray pulses to be equal to the width of the detector, for a single energy source, and to half the width of the detector for a dual energy source. This ensures precise timing between the X-ray exposure and the speed of the passing object, and thus accurate scanning of cargo even at high speeds.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 1, 2016
    Assignee: RAPISCAN SYSTEMS, INC.
    Inventor: Edward James Morton
  • Patent number: 9263400
    Abstract: An X-ray obscuration (XRO) film comprising one or more metallic wire mesh layers and an adjacent layer of indium foil having portions which extend into openings of the wire mesh and in contact with metallic portions thereof. The XRO film can be capable of absorbing at least a portion of X-ray energy thereby creating an interference pattern when the XRO film is coupled with an electronic circuit and placed between an X-ray source and an X-ray detector and subjected to radiographic inspection. The interference pattern can create sufficient visual static to effectively obscure circuit lines in the electronic circuit when subjected to radiographic inspection techniques. The XRO film can be substantially thinner than existing solutions for preventing X-ray inspection with an exemplary embodiment being no more than 5 mils thick. The metallic XRO film can also provide electromagnetic shielding and/or heat dissipation for electronic circuits.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: February 16, 2016
    Assignee: Lockheed Martin Corporation
    Inventors: Stephen Gonya, Jesse Iannon
  • Patent number: 9258876
    Abstract: Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the width of the beam pulse, i.e., pulse width.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: February 9, 2016
    Assignee: Accuray, Inc.
    Inventors: Stephen Wah-Kwan Cheung, Roger Heering Miller, Juwen Wang
  • Patent number: 9248315
    Abstract: A method of performing microbeam radiosurgery on a patient whereby opposing portions of target tissue within a patient are exposed to a flux of high energy quanta via microbeam envelopes. The microbeam envelopes are applied in multiple non-parallel orientations such that the exposed portions of the target tissue define a substantially closed volume. The tissue remaining inside is thereby denied blood flow and dies.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: February 2, 2016
    Assignee: VARIAN MEDICAL SYSTEMS, INC.
    Inventor: Michael Dean Wright
  • Patent number: 9215790
    Abstract: A particle acceleration system includes a particle accelerator and at least one beam-transparent stripper element. The particle accelerator is configured to accelerate charged particles along a trajectory. The beam-transparent stripper element(s) is/are positioned along the trajectory. Each beam-transparent stripper element has a surface normal to the trajectory, wherein said surface defines a plurality of apertures configured to cause a first plurality of charged particles that strike the surface to undergo a stripping process while a second plurality of charged particles pass through one or more of the plurality of apertures without undergoing the stripping process.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: December 15, 2015
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Sergey Korenev
  • Patent number: 9177752
    Abstract: A device for sterilizing containers may include a treatment head having an outlet window for the passing of charge carriers therethrough, a charge carrier generation source for generating charge carriers, an acceleration device disposed above the outlet window, and a cooling device for cooling the outlet window. The acceleration device accelerates the charge carriers in the direction of the outlet window. The cooling device includes a feed opening for a gaseous medium. The feed opening is disposed beneath the outlet window and directs the gaseous medium at least partially from below to the outlet window.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: November 3, 2015
    Assignee: KRONES AG
    Inventors: Eberhard Foell, Jochen Krueger
  • Patent number: 9111656
    Abstract: The invention provides a method for collimating a radiation beam, the method comprising subjecting the beam to a collimator that yaws and pitches, either separately or simultaneously relative to the incident angle of the beam. Also provided is a system for collimating radiation beams, the system comprising a collimator body, and a stage for pitching and yawing the body. A feature of the invention is that a single, compact mask body defines one or a plurality of collimators having no moving surfaces relative to each other, whereby the entire mask body is moved about a point in space to provide various collimator opening dimensions to oncoming radiation beams.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: August 18, 2015
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Oliver A. Schmidt, Mohan Ramanathan
  • Patent number: 9095283
    Abstract: A radiation control system and method are provided in which radiation delivered to a patient and/or the operator of the equipment is minimized. The radiation control system may be used in a large variety of applications including applications in which radiation source is used to inspect an object, such as, for example, medical imaging, diagnosis and therapy, in manufacturing operation using radiation, in airports scanning systems, in different security setups, and in nuclear reactors automation and process control. The radiation control system and method may also be used with 3D imaging.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: August 4, 2015
    Assignee: ControlRad Systems, Inc.
    Inventor: Allon Guez
  • Patent number: 9082961
    Abstract: According to one embodiment, a method of manufacturing a multilayer film, the method includes forming a first layer, forming a second layer on the first layer, and transcribing a crystal information of one of the first and second layers to the other one of the first and second layers by executing a GCIB-irradiation to the second layer.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: July 14, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuichi Ohsawa, Shigeki Takahashi, Junichi Ito, Daisuke Saida, Kyoichi Suguro, Hiroaki Yoda
  • Patent number: 9066675
    Abstract: A collimator includes a plurality of first plate-shaped parts, and a plurality of second plate-shaped parts interlocking with the plurality of first plate-shaped parts. Each of the plurality of first plate-shaped parts and the plurality of second plate-shaped parts arranged with a rectangular spacing therebetween and form a grid-like pattern. Each of the first plate-shaped parts comprises a first slotted plate part having a plurality of first slits formed thereon that is fixed to each of the second plate-shaped parts. A second slotted plate part having a plurality of second slits formed thereon is coupled to a side of the second plate-shaped parts opposite to the first slotted plate part. An adjustment plate part is disposed between the first slotted plate part and the second slotted plate part.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: June 30, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kazuhiko Mori
  • Patent number: 9064611
    Abstract: A 2D collimator is disclosed for a radiation detector. In at least one embodiment, the 2D collimator includes 2D collimator modules arranged in series, wherein adjacent 2D collimator modules are glued together to establish a fixed mechanical connection to facing module sides, and wherein, on their free-remaining side, the outer 2D collimator modules have a retaining element for mounting the 2D collimator opposite a detector mechanism. A method for manufacturing such a 2D collimator is also disclosed.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: June 23, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Andreas Freund, Claus Pohan, Gottfried Tschöpa, Jan Wrege
  • Patent number: 9050028
    Abstract: A radiation control system and method are provided in which radiation delivered to a patient and/or the operator of the equipment is minimized. The radiation control system may be used in a large variety of applications including applications in which radiation source is used to inspect an object, such as, for example, medical imaging, diagnosis and therapy, in manufacturing operation using radiation, in airports scanning systems, in different security setups, and in nuclear reactors automation and process control. The radiation control system and method may also be used with 3D imaging.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: June 9, 2015
    Assignee: ControlRad Systems, Inc.
    Inventor: Allon Guez
  • Publication number: 20150144810
    Abstract: A system includes a first electrode to receive an ion beam, a second electrode to receive the ion beam after passing through the first electrode, the first and second electrode forming an upstream gap defined by a convex surface on one of the first or second electrode and concave surface on the other electrode, a third electrode to receive the ion beam after passing through the second electrode, wherein the second and third electrode form a downstream gap defined by a convex surface on one of the second or third electrode and concave surface on the other electrode, wherein the second electrode has either two concave surfaces or two convex surfaces; and a voltage supply system to independently supply voltage signals to the first, second and third electrode, that accelerate and decelerate the ion beam as it passes through the first, second, and third electrode.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Frank Sinclair, Victor M. Benveniste
  • Patent number: 9040945
    Abstract: Apparatus for performing electron radiation therapy on a breast cancer patient preferably includes an intraoperative electron radiation therapy machine, an intraoperative electron radiation therapy collimator tube connected to the intraoperative electron radiation therapy machine, and a plurality of filters made of a material having substantially the same density as human breast tissue for placement between the machine and the patient to change the energy of a monoenergetic beam after the beam has left the machine, allowing a filter to be chosen to reduce the energy traveling through the tube to a desired amount of energy to treat the patient.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 26, 2015
    Inventor: Jonathan S. Hayman
  • Patent number: 9040946
    Abstract: The invention relates to a thermal conduction element (20) for a package for transporting and/or storing radioactive materials, comprising: an internal part (30) intended to be in contact with a lateral body (14) of the package; an external part (34) intended to form a portion of an external envelope (24) of said package, holding radiological protection means (22); an intermediate part (32) arranged between the internal and external parts, the internal, external and intermediate parts being produced from copper and one of the alloys thereof. According to the invention, the external part (34) is equipped, at each of its two opposite ends, with an area (36) for connection by welding to another thermal conduction element (20), each connection area (36) being produced from steel.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 26, 2015
    Assignee: TN INTERNATIONAL
    Inventors: Herve Ripert, Emmanuel Mercier, Sylvain Lauret
  • Publication number: 20150137010
    Abstract: The invention relates to an electrode stack (70) comprising stacked electrodes (71-80) for manipulating a charged particle beam along an optical axis (A). Each electrode comprises an electrode body with an aperture for the charged particle beam. The electrode bodies are mutually spaced and the electrode apertures are coaxially aligned along the optical axis. The electrode stack comprises electrically insulating spacing structures (89) between each pair of adjacent electrodes for positioning the electrodes (71-80) at predetermined mutual distances along the axial direction (Z). A first electrode and a second electrode each comprise an electrode body with one or more support portions (86), wherein each support portion is configured to accommodate at least one spacing structure (89). The electrode stack has at least one clamping member (91-91c) configured to hold the support portions (86) of the first and second electrodes, as well as the intermediate spacing structure (89) together.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Willem Henk URBANUS, Marco Jan-Jaco WIELAND
  • Publication number: 20150137009
    Abstract: The invention relates to a collimator electrode, comprising an electrode body (81) that is provided with a central electrode aperture (82), wherein the electrode body defines an electrode height between two opposite main surfaces, and wherein the electrode body accommodates a cooling conduit (105) inside the electrode body for transferring a cooling liquid (102). The electrode body preferably has a disk shape or an oblate ring shape. The invention further relates to a collimator electrode stack for use in a charged particle beam generator, comprising a first collimator electrode and a second collimator electrode that are each provided with a cooling conduit (105) for transferring the cooling liquid (102), and a connecting conduit (110) for a liquid connection between the cooling conduits of the first and second collimator electrodes.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Willem Henk URBANUS, Marco Jan-Jaco WIELAND
  • Patent number: 9029810
    Abstract: Systems and methods for providing improved scanner corrections are disclosed. Scanner corrections provided in accordance with the present disclosure may be referred to as wafer geometry aware scanner corrections. More specifically, wafer geometry and/or wafer shape signature information are utilized to improve scanner corrections. By removing the wafer geometry as one of the error sources that may affect the overlay accuracy, better scanner corrections can be obtained because one less contributing factor needs to be modeled.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: May 12, 2015
    Assignee: KLA-Tencor Corporation
    Inventors: Craig MacNaughton, Sathish Veeraraghavan, Pradeep Vukkadala, Jaydeep Sinha, Amir Azordegan
  • Patent number: 9031204
    Abstract: A leaf module for a multi-leaf collimator comprises a leaf unit and a leaf drive unit. The leaf unit comprises a leaf for shielding beams from a selected area. The leaf unit is mounted displaceably in an adjusting direction with relation to the leaf drive unit. The leaf drive unit is designed to displace the leaf unit linearly in the adjusting direction. The leaf drive unit comprises at least one drive mechanism which operates based on piezoelectric actuation, being designed such that the leaf drive unit thoroughly encloses the leaf unit within a plane being oriented substantially perpendicularly related to the adjusting direction. The multi-leaf collimator can comprise a plurality of leaf modules while being shaped as compact as possible. Both precise and stable adjustability of the leaf unit is achieved with the leaf module.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: May 12, 2015
    Assignee: Deutsches Krebsforschungszentrum
    Inventors: Gernot Echner, Steffen Seeber, Klaus Schewiola
  • Publication number: 20150123010
    Abstract: A method of producing field emitters having improved brightness and durability relying on the creation of a liquid Taylor cone from electrically conductive materials having high melting points. The method calls for melting the end of a wire substrate with a focused laser beam, while imposing a high positive potential on the material. The resulting molten Taylor cone is subsequently rapidly quenched by cessation of the laser power. Rapid quenching is facilitated in large part by radiative cooling, resulting in structures having characteristics closely matching that of the original liquid Taylor cone. Frozen Taylor cones thus obtained yield desirable tip end forms for field emission sources in electron beam applications. Regeneration of the frozen Taylor cones in-situ is readily accomplished by repeating the initial formation procedures. The high temperature liquid Taylor cones can also be employed as bright ion sources with chemical elements previously considered impractical to implement.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 7, 2015
    Inventor: Gregory Hirsch
  • Publication number: 20150123020
    Abstract: The present disclosure relates to a particle energy modulating device for variably changing the energy of the particles of a particle beam. The particle energy modulating device has a variable energy varying device with a control value correcting device for correcting a supplied control value. The control value correcting device corrects the supplied control values through the use of previously determined calibration data.
    Type: Application
    Filed: August 3, 2012
    Publication date: May 7, 2015
    Applicant: GSI Helmholtzzentrum Fur Schwerionenforschung GmbH
    Inventors: Nami Saito, Christoph Bert, Eike Rietzel
  • Publication number: 20150115161
    Abstract: The invention is an imaging apparatus comprising a detector device (12) for determining points of incidence of photons and having an impact surface (13), and an aperture (16) suitable for projecting the photons to the detector device (12) having an inlet surface (17) and an outlet surface facing the impact surface (13), and comprising pinholes (18?, 18?, 22) connecting the inlet surface (17) and the outlet surface. The pinholes (18?, 18?, 22) comprise one or more central pinholes (18?, 22) and one or more peripheral pinholes (18?), and at least one central pinhole (18?, 22) and at least one peripheral pinhole (18?) are formed with focal opening (20?, 20?, 23) depth or focal opening (20?, 20?, 23) sizes different from each other. Furthermore, the invention is an aperture for the imaging apparatus and a method of manufacturing an aperture of an imaging apparatus.
    Type: Application
    Filed: August 30, 2012
    Publication date: April 30, 2015
    Applicant: Mediso Orvosi Berendezes Fejleszto es Szerviz Kft.
    Inventors: Istvan Bagamery, Adam Billing, Tamas Bukki, Ferenc Kovacs, Zoltan Nyitrai, Andras Wirth
  • Patent number: 9018605
    Abstract: A nuclear fusion reactor first wall component includes a copper alloy element, an intermediate metal layer made from niobium and a beryllium element, directly in contact with the intermediate metal layer. The intermediate niobium layer is further advantageously associated with a mechanical stress-reducing layer formed by a metal chosen from copper and nickel. This mechanical stress-reducing layer is in particular arranged between the intermediate niobium layer and the copper alloy element. Furthermore, when the mechanical stress-reducing layer is made from pure copper, a layer of pure nickel can be inserted between the niobium and the pure copper before diffusion welding. Such a component presents the advantage of having an improved thermal fatigue behavior while at the same time preventing the formation of intermetallic compounds at the junction between the beryllium and the copper alloy.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: April 28, 2015
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Pierre-Eric Frayssines, Philippe Bucci, Jean-Marc Leibold, Emmanuel Rigal
  • Publication number: 20150108374
    Abstract: A multi-pinhole collimator is formed by calculating a projection size (D) for different pinhole numbers (n) for a predetermined field-of-view (FOV) (d) by arranging a plurality of projections into a pattern. A pattern is selected which utilizes a whole detector with maximized packing density, minimum truncation to provide a projection overlap below a predetermined limit. The number of pinholes is modified to calculate a collimator length, a corresponding acceptance angle and aperture size. Sensitivities for individual pinholes are added to obtain a total sensitivity for a given pinhole number, and an optimized multi-pinhole configuration is obtained by maximizing the total sensitivity for a predetermined target resolution (Re) and field-of-view (FOV) (d).
    Type: Application
    Filed: October 18, 2013
    Publication date: April 23, 2015
    Inventor: Seng Peng MOK
  • Publication number: 20150105604
    Abstract: Disclosed is a filter including a second layer disposed between a first layer and a third layer. The first layer is composed of iron. The second layer is composed of 1 part by volume of lithium fluoride, 20 to 50 parts by volume of aluminum, and 50 to 80 parts by volume of aluminum fluoride. The third layer is composed of 1 part by weight of lithium fluoride and 99 to 100 parts by weight of magnesium fluoride.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 16, 2015
    Applicants: NATIONAL TSING HUA UNIVERSITY, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yen-Wan Hsueh LIU, Zhen-Fan YOU
  • Publication number: 20150102237
    Abstract: Herein, an improved technique for processing a substrate is disclosed. In one particular exemplary embodiment, the technique may be achieved using a mask for processing the substrate. The mask may be incorporated into a substrate processing system such as, for example, an ion implantation system. The mask may comprise one or more first apertures disposed in a first row; and one or more second apertures disposed in a second row, each row extending along a width direction of the mask, wherein the one or more first apertures and the one or more second apertures are non-uniform.
    Type: Application
    Filed: November 24, 2014
    Publication date: April 16, 2015
    Inventors: Kevin M. Daniels, Russell J. Low, Nicholas P.T. Bateman, Benjamin B. Riordon
  • Patent number: 9006693
    Abstract: An energy degrader includes: a damping unit that attenuates energy of incident charged particles and has a thickness changing stepwise or continuously according to a position of a two-dimensional coordinate system within a plane crossing a traveling direction of charged particles; and a driving unit that performs translational driving of the damping unit in first and second axial directions that are directions of two axes crossing each other in the two-dimensional coordinate system.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: April 14, 2015
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Kenzo Sasai
  • Patent number: 9006695
    Abstract: The invention relates to the use of a mixture comprising erbium and praseodymium as a radiation attenuating composition, i.e. as a composition that can attenuate ionizing radiation, in particular X- and gamma-type electromagnetic radiation. The invention also relates to a radiation attenuating material comprising an erbium- and praseodymium-based composition, as well as a protective article which provides group or individual protection against ionizing radiation and comprises said material. The invention is suitable for use in nuclear medicine (scintigraphy, radiotherapy, etc.), radiology, medical imaging, the nuclear industry, etc.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 14, 2015
    Assignee: Areva NC
    Inventors: Noël Lantheaume, Marc Pichegut, Jacky Jehanno
  • Patent number: 9006652
    Abstract: A method of electron microcopy passes an electron beam through a phase plate, specifically a Zernike type phase plate, comprising a central hole, and a thin film causing a phase shift of the electrons passing through said film. This phase shift causes the Contrast Transfer Function (CTF) to change from a sine-like function to a cosine-like function. The phase plate is equipped with a film in the form of an annulus, carried by a much thinner film. As a result only in a small spatial frequency range (for low frequencies) the phase is changed (and thus the CTF), and for other spatial frequencies the phase shift is negligible, and thus the CTF remains unchanged. Due to the much smaller thickness of the carrier film the scattering of electrons is negligible as well.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: April 14, 2015
    Assignee: FEI Company
    Inventor: Bart Buijsse
  • Publication number: 20150098072
    Abstract: A beam guidance system serves for the focusing guidance of radiation from a high-power laser light source toward a target. The beam guidance system has at least one mirror as reflective beam guidance component and at least one transmission component which is at least partially transmissive to the radiation as refractive beam guidance component. The arrangement of the at least one mirror and of the at least one transmission component is such that beam-induced changes to the beam guidance properties of the at least one mirror are at least partly compensated for by beam-induced changes to the beam guidance properties of the at least one transmission component. This results in a beam guidance system in which beam-induced changes to the beam guidance properties of the beam guidance system do not have a disturbing effect on the focusing guidance of the radiation from the laser light source.
    Type: Application
    Filed: June 30, 2014
    Publication date: April 9, 2015
    Inventor: Udo Dinger
  • Patent number: 8992404
    Abstract: Disclosed are radiation treatment systems with enhanced control architectures that enable more complex treatment plans to be implemented, and radiation treatment systems with enhanced resistance to the effect of neutrons. An exemplary control architectures comprises: a digital packet network; a supervisor electrically coupled to the digital packet network and having a treatment plan; and a plurality of nodes, each node coupled to digital packet network and controlling one or more treatment-related components of the radiation treatment system; and wherein the supervisor periodically communicates control orders to the nodes over the digital packet network.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: March 31, 2015
    Assignee: Varian Medical Systems, Inc.
    Inventors: Andres Graf, Hanspeter Felix, Qingxiang Ke, Angi Ye
  • Patent number: 8993989
    Abstract: Radiation shields and radiation shielding systems for attenuating ionizing radiation include two or more attenuating elements, such as layers. The two or more attenuating elements may include different attenuating materials. The two or more attenuating elements may be configured to attenuate ionizing radiation differently than one another. In some embodiments, different attenuating elements may be configured for use with different energies or ranges of energies of ionizing radiation. The concurrent use of two or more layers or other attenuating elements may optimize the ability of a radiation shield to attenuating ionizing radiation. Systems and methods for attenuating ionizing radiation are also disclosed.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: March 31, 2015
    Assignee: BLOXR Solutions, LLC
    Inventors: Ashok C. Khandkar, Prataprai Chowdhary
  • Patent number: 8995605
    Abstract: A lid frame for a nuclear fuel assembly shipping container and a shipping container for nuclear fuel assemblies are provided. The shipping container can include a lower container in which a cradle is installed, an upper container detachably coupled to the lower container, and a base frame coupled to the cradle with at least one nuclear fuel assembly placed thereon. The lid frame can include a plurality of supports installed apart from each other so as to surround the nuclear fuel assembly placed on the base frame, and a plurality of clamps separated from each other, coupled to the plurality of supports perpendicular to the plurality of supports, rotatably hinged to the base frame, and configured to clamp the nuclear fuel assembly. The lid frame safely protects the nuclear fuel assembly that is being transported.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: March 31, 2015
    Assignee: Kepco Nuclear Fuel Co., Ltd.
    Inventors: Hung Soon Chang, Chang Hwan Hwang, Deuk Yeon Kim, Jae Soon Choi, Weon Chan Hwang, Se Yong Shin, Young Hoon Kim, Jong Sung Hong
  • Publication number: 20150076375
    Abstract: A photon collimator, suitable for use in medical imaging equipment, is constructed from a block of photon-attenuating material, such as solid tungsten or molybdenum alloy that defines a plurality of integrally formed septa slats. Each slat has an elongated length dimension greater than thickness and depth dimensions, and is oriented in an opposed pattern array that is laterally spaced relative to its respective thickness dimension. An aperture channel is defined between each pair of opposed slats. Rows of integrally formed slats in one block or separately affixed blocks may be stacked on each other at skewed angles to form two-dimensional grids of apertures having polygonal cross sections. The slats may be formed by electric discharge or laser thermal ablation machining, such as by a sequential passing of an EDM wire cutting head along the pattern array, repeating sequential cutting of respective channel depth and width.
    Type: Application
    Filed: November 19, 2014
    Publication date: March 19, 2015
    Inventor: Ronald E. Malmin
  • Patent number: 8976935
    Abstract: A collimator grid and a method of fabricating the collimator grid are disclosed. The method includes molding a plurality of plates, each plate includes a plurality of grooves in a first surface, a plurality of fin tips in a second surface disposed opposite to the first surface, plurality of ribs on a first pair of peripheral sides, a plurality of first fiducials formed on the plurality of ribs, and a plurality of second fiducials formed on a second pair of peripheral sides. The method includes machining the second surface to form the plurality of fins having predefined dimensions. Further, the method includes stacking the plurality of plates overlapping each other based on the plurality of first fiducials, and machining the plurality of ribs and first fiducials to form the collimator grid.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: March 10, 2015
    Assignee: General Electric Company
    Inventors: Prabhjot Singh, Garth M Nelson, Brian David Yanoff, Juan Pablo Cilia
  • Publication number: 20150055759
    Abstract: The invention provides a method for collimating a radiation beam, the method comprising subjecting the beam to a collimator that yaws and pitches, either separately or simultaneously relative to the incident angle of the beam. Also provided is a system for collimating radiation beams, the system comprising a collimator body, and a stage for pitching and yawing the body. A feature of the invention is that a single, compact mask body defines one or a plurality of collimators having no moving surfaces relative to each other, whereby the entire mask body is moved about a point in space to provide various collimator opening dimensions to oncoming radiation beams.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 26, 2015
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Oliver A. Schmidt, Mohan Ramanathan
  • Patent number: 8963111
    Abstract: The present invention relates to a method for obtaining a shielding element for minimizing the penumbra of a beam of hadrons outside a target area, the hadron beam being guided in a longitudinal direction by an irradiation unit, and the beam having a width (?). The method includes: (i) defining a closed or open contour of said target area; (ii) providing a block having a longitudinal thickness capable of blocking the passage of said beam and having a lateral surface perpendicular to said longitudinal thickness; (iii) forming an aperture of a shape similar to said contour and crossing said longitudinal thickness of said block for letting through said beam, said aperture forming a longitudinal internal surface; and (iv) trimming said block so as to form a longitudinal external surface around said longitudinal internals surface, said longitudinal internal and longitudinal external surfaces delimiting a side wall.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: February 24, 2015
    Assignee: Ion Beam Applications S.A.
    Inventors: Yves Claereboudt, Thomas Colmant, Michel Closset
  • Patent number: 8963112
    Abstract: The invention comprises a patient positioning and/or repositioning system, such as a laying, semi-vertical, or seated patient positioning, alignment, and/or control method and apparatus used in conjunction with multi-axis charged particle radiation therapy. Patient positioning constraints optionally include one or more of: a seat support, a back support, a head support, an arm support, a knee support, and a foot support. One or more of the positioning constraints are preferably movable and/or under computer control for rapid positioning, repositioning, and/or immobilization of the patient. The system optionally uses an X-ray beam that lies in substantially the same path as a proton beam path of a particle beam cancer therapy system. The generated image is usable for: fine tuning body alignment relative to the proton beam path, to control the charged particle beam path to accurately and precisely target the tumor, and/or in system verification and validation.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: February 24, 2015
    Inventor: Vladimir Balakin
  • Patent number: 8957397
    Abstract: A photon collimator, suitable for use in medical imaging equipment, is constructed from a block of photon-attenuating material, such as solid tungsten or molybdenum alloy that defines a plurality of integrally formed septa slats. Each slat has an elongated length dimension greater than thickness and depth dimensions, and is oriented in an opposed pattern array that is laterally spaced relative to its respective thickness dimension. An aperture channel is defined between each pair of opposed slats. Rows of integrally formed slats in one block or separately affixed blocks may be stacked on each other at skewed angles to form two-dimensional grids of apertures having polygonal cross sections. The slats may be formed by electric discharge or laser thermal ablation machining, such as by a sequential passing of an EDM wire cutting head along the pattern array, repeating sequential cutting of respective channel depth and width.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: February 17, 2015
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Ronald E. Malmin
  • Publication number: 20150041658
    Abstract: An object inspection apparatus includes a terahertz wave supplying unit for generating a terahertz wave and moving a path of the terahertz wave according to time so that the terahertz wave is supplied to an object to be inspected, a focusing lens located between the terahertz wave supplying unit and the object to be inspected to focus the terahertz wave supplied by the terahertz wave supplying unit, a rotating plate having a plate shape and including a plurality of the focusing lenses with different distances from the center thereof, the rotating plate rotating in the circumferential direction so that one of the focusing lenses is located at a path of the terahertz wave according to the path movement of the terahertz wave, and a terahertz wave detecting unit for collecting and detecting a terahertz wave incident to the object to be inspected.
    Type: Application
    Filed: April 10, 2012
    Publication date: February 12, 2015
    Applicant: KOREA FOOD RESEARCH INSTITUTE
    Inventors: Hyang-Sook Chun, Sung-Wook Choi, Hyun-Joo Chang, Na-Ri Lee, Gyeong-Sik Ok
  • Patent number: 8952345
    Abstract: A radiation therapy apparatus includes a housing, a radiation source carried by the housing, and an aperture assembly carried by the housing. The aperture assembly includes a radiation aperture body, an aperture holder and a cover. The radiation aperture body has a shaped opening therein to control a radiation dosing profile. The aperture holder has an aperture-receiving passageway therein receiving the radiation aperture body, and a recessed end. The cover is received within the recessed end of the aperture holder, and retains the radiation aperture body within the aperture holder. The cover has an opening aligned with the shaped opening in the radiation aperture body. A radiation filter is carried by the housing.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 10, 2015
    Assignee: .Decimal, Inc
    Inventors: Richard Sweat, Salvadore Gerace, Kevin Erhart
  • Patent number: 8952346
    Abstract: The subject matter described herein provides methods for developing an IMRT treatment plan for a radiotherapy system. In one aspect, the method can include providing initial treatment parameters. These parameters can include a number of isotopic beams, a transmission angle for each beam, a prescribed dose for a target, and dose volume histogram constraints. The method can further include determining an initial fluence map including one or more beamlets. The initial fluence map can specify a fluence value for each beamlet. The method can further include determining a delivery sequence for the fluence values in the initial fluence map. The delivery sequence can include one or more apertures formed by the leaves of a collimator. These apertures can have a specified size constrained to substantially less than a maximum size associated with the collimator, when the isotopic beam is near a critical structure. Related apparatus and systems are also described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 10, 2015
    Assignee: ViewRay Incorporated
    Inventors: James F. Dempsey, Iwan Kawrykow
  • Patent number: 8944363
    Abstract: Embodiments of methods, apparatuses, and systems associated with producing and distributing one or more radiative forcing agents to Earth's atmosphere are disclosed.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: February 3, 2015
    Assignees: Robert Theodore Jenkins, TGV, LLC
    Inventor: Robert Theodore Jenkins
  • Patent number: 8946663
    Abstract: An assembly includes an integrated circuit, a film layer disposed over the integrated circuit and having a thickness of at least 50 microns, and a thermal neutron absorber layer comprising at least 0.5% thermal neutron absorber. The thermal neutron absorber layer can be a glass layer or can include a molding compound.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: February 3, 2015
    Assignee: Spansion LLC
    Inventors: Richard C. Blish, Timothy Z. Hossain
  • Publication number: 20150028232
    Abstract: A multi-part mask has a pattern plate, which includes a planar portion that has the desired aperture pattern to be used during workpiece processing. The multi-part mask also has a mounting frame, which is used to hold the pattern plate. Prior to assembly, the pattern plate has an aligning portion, which has one or more holes through which reusable alignment pins are inserted. These alignment pins enter kinematic joints disposed on the mounting frame, which serve to precisely align the pattern plate to the mounting frame. After the pattern plate has been secured to the mounting frame, the aligning portion can be detached from the pattern plate. The alignment pins can be reused at a later time. In some embodiments, the pattern plate can later be removed from the mounting frame, so that the mounting frame may be reused.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 29, 2015
    Inventors: Aaron P. Webb, Charles T. Carlson