Radiation Controlling Means Patents (Class 250/505.1)
  • Patent number: 10508889
    Abstract: A method comprising the steps of propagating an infrared laser pulse in air, self-focusing the laser pulse until the laser reaches a critical power density, wherein molecules in the air ionize and simultaneously absorb a plurality of infrared photons resulting in a clamping effect on the intensity of the pulse, wherein the laser pulse defocuses and plasma is created, causing a dynamical competition between the self-focusing of the laser pulse and the defocusing effect due to the created plasma, the laser pulse maintaining a small beam diameter and high peak intensity over large distances, creating a plasma column, repeating the above steps to create a plurality of plasma columns, creating a parallel linear array with the plurality of plasma columns, and using the array to deflect an incident energy.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: December 17, 2019
    Assignee: United States of America as Represented by the Secretary of the Navy
    Inventors: Brittany E. Lynn, Alexandru Hening, Ryan P. Lu
  • Patent number: 10500419
    Abstract: In a method of constructing a head shield for a radiation machine, the angular distribution of radiation propagating from a source and the angular function of thickness of a material in attenuating the radiation to a certain level of its original value are determined. Based on the angular distribution of radiation from the source and the angular function of thickness of the material, the thicknesses of the material at a plurality of angular locations around the source and distances from the source can be calculated for attenuating the radiation to or less than a predetermined threshold value. A shield around the source is constructed based on the calculated thicknesses of the material through iterative steps to ensure a cost-saving, weight-efficient, optimal solution.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: December 10, 2019
    Assignee: Varian Medical Systems, Inc.
    Inventors: HsinLu Hsu, Magdalena Constantin, Stuart Scollay
  • Patent number: 10488584
    Abstract: Disclosed embodiments include an energy directing device having one or more energy relay elements configured to direct energy from one or more energy locations through the device. In an embodiment, surfaces of the one or more energy relay elements may form a singular seamless energy surface where a separation between adjacent energy relay element surfaces is less than a minimum perceptible contour. In disclosed embodiments, energy is produced at energy locations having an active energy surface and a mechanical envelope. In an embodiment, the energy directing device is configured to relay energy from the energy locations through the singular seamless energy surface while minimizing separation between energy locations due to their mechanical envelope. In embodiments, the energy relay elements may comprise energy relays utilizing transverse Anderson localization phenomena.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: November 26, 2019
    Assignee: LIGHT FIELD LAB, INC.
    Inventors: Jonathan Sean Karafin, Brendan Elwood Bevensee
  • Patent number: 10488651
    Abstract: Metasurfaces comprise an array of meta-atoms in a stretchable polymer. The dimensions and shapes of the meta-atoms and the spacing are varied to obtain desired optical properties. Any optical wavefront, for different wavelengths, illumination angles, and polarization states can be designed with proper design of the meta-atoms. As the metasurface is stretched, the distance between the meta-atoms changes, modifying the optical response, while the dimensions of the meta-atoms remains constant.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: November 26, 2019
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seyedeh Mahsa Kamali, Ehsan Arbabi, Amir Arbabi, Yu Horie, Andrei Faraon
  • Patent number: 10441231
    Abstract: A system of shields designed to provide substantially greater protection, head to toe, against radiation exposure to health care workers in a hospital room during procedures which require real-time imaging. The shields are placed around the patient and the x-ray table and provide protection even when the x-ray tube is moved to various angles around the patient.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: October 15, 2019
    Assignee: Egg Medical, Inc.
    Inventors: Robert F. Wilson, Uma S. Valeti, John P. Gainor
  • Patent number: 10441242
    Abstract: An X-ray apparatus includes an X-ray source configured to radiate X-rays, a collimator configured to adjust a radiation field of the X-rays and rotate on an optical axis direction of the X-rays, a ring-shaped first rotation transfer unit centered on an optical axis of the X-rays in the X-ray source, a second rotation transfer unit interlocked with the ring-shaped first rotation transfer unit and configured to rotate as the collimator rotates, a rotation sensor configured to sense an amount of rotation of the second rotation transfer unit, and a detector comprising a receiving surface on which the X-rays radiated from the collimator are incident.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: October 15, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-soo Kim, Han-ju Nam, Young-jun Lee, Jin-ho Choi
  • Patent number: 10446364
    Abstract: An embodiment of the invention is a focusing magnet including a coil pair arranged on both sides of a path of a charged particle beam. The coil pair generates an effective magnetic field region in which a magnetic field is oriented in a direction (z-axis) perpendicular to a traveling direction (x-axis) of a charged particle beam.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: October 15, 2019
    Assignee: B DOT MEDICAL INC.
    Inventors: Kota Mizushima, Takuji Furukawa, Eri Takeshita, Yousuke Hara, Naoya Saotome, Yuichi Saraya, Ryohei Tansho
  • Patent number: 10434334
    Abstract: A method for irradiation based on a fluence map includes determining a shield type of each of a plurality of rows of a fluence map. The method also includes determining, for each of the plurality of rows, a movement curve indicating a relationship between an irradiation dose in the each of the plurality of rows and a moving position of a leaf pair corresponding to the each of the plurality of rows. The method further includes determining an initial irradiation dose for each of the movement curves and synchronizing one of the movement curves based on the shield types of the plurality of rows. The method also includes selecting at least one irradiation dose of at least one point on an irradiation dose axis and generating a control point according to the selected irradiation dose.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: October 8, 2019
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventor: Weiyuan Wang
  • Patent number: 10431418
    Abstract: An embodiment of the invention is a focusing magnet including a coil pair arranged on both sides of a path of a charged particle beam. The coil pair generates an effective magnetic field region in which a magnetic field is oriented in a direction (z-axis) perpendicular to a traveling direction (x-axis) of a charged particle beam.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: October 1, 2019
    Assignee: B DOT MEDICAL INC.
    Inventors: Kota Mizushima, Takuji Furukawa, Eri Takeshita, Yousuke Hara, Naoya Saotome, Yuichi Saraya, Ryohei Tansho
  • Patent number: 10355512
    Abstract: A rechargeable cell of an implantable medical device is recharged by an external charging unit that includes a transmitting coil configured to emit an electromagnetic field and a near-field focusing plate having a subwavelength structure pattern that focuses the emitted electromagnetic field to a focal pattern. The implantable medical device includes a housing having a window of an electromagnetically transparent material and a receiving coil enclosed by the housing. The receiving coil extends adjacent to and is aligned with the window. The rechargeable cell is enclosed by the housing and is configured to be charged by current induced in the receiving coil when the receiving coil is exposed to the focal pattern. In some examples, the near-field focusing plate is configured to produce the focal pattern to have a size that is less than an outer dimension of the window and a focal length from the near-field focusing plate that at least reaches the window.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: July 16, 2019
    Assignee: Medtronic, Inc.
    Inventors: Can Cinbis, Richard J O'Brien
  • Patent number: 10354844
    Abstract: An insulator for a processing apparatus including an upper electrode, a lower electrode and a reaction chamber, the insulator being adapted to be arranged around the upper electrode and the insulator including: a bottom end adapted to face the reaction chamber; and a side wall facing a side wall of the upper electrode, wherein an edge portion of the bottom end of the insulator extends radially inwardly to form a projecting portion such that the projecting portion covers an edge of a bottom surface of the upper electrode and a clearance between the side wall of the upper electrode and the side wall of the insulator.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: July 16, 2019
    Assignee: ASM IP HOLDING B.V.
    Inventors: Hiroshi Kondo, Masaki Hirayama
  • Patent number: 10354768
    Abstract: A structure for preventing a scan by a beam is provided. The structure includes a primary material forming the structure. The primary material includes a first mass attenuation coefficient enabling the primary material to be penetrated by the beam. The structure also includes a matrix of dense particles within the primary material. The dense particles include secondary materials different than the primary material. The secondary materials comprise a subsequent mass attenuation coefficient that is greater than the first mass attenuation coefficient of the primary material. The subsequent mass attenuation coefficient enables the dense particles to attenuate the beam to distort the scan.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: July 16, 2019
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Eric Karlen, William Louis Wentland
  • Patent number: 10345459
    Abstract: A radiography apparatus includes: a first radiation detector that includes plural pixels accumulating charge corresponding to emitted radiation; a second radiation detector that is stacked on a side of the first radiation detector opposite to a side on which the radiation is incident and includes plural pixels accumulating charge corresponding to the emitted radiation; a first control unit that performs control for reading the charge accumulated in the pixels of the first radiation detector while the charge is accumulated in the pixels of the first radiation detector and the second radiation detector; and a second control unit that starts control for reading the charge accumulated in the pixels of the second radiation detector while the charge is accumulated in the pixels of the first radiation detector and the second radiation detector at a time different from a time when the first control unit starts the control.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: July 9, 2019
    Assignee: FUJIFILM CORPORATION
    Inventor: Takeshi Kuwabara
  • Patent number: 10315048
    Abstract: The present disclosure provides a radiation method for radiating a fluence map having a zero-fluence region under a movement of MLC (Multi-Leaf Collimator) includes a determining step of determining at least one basic fluence map from the fluence map. The basic fluence map includes a first non-zero fluence region and a second non-fluence region having the zero-fluence region therebetween. The radiation method includes a first radiating step including radiating the first non-zero fluence region, along with moving a first group of leaf pairs and moving a vertical jaw to shade the first group of leaf pairs, and a second radiating step including radiating the second non-zero fluence region, along with moving a second group of leaf pairs and withdrawing the vertical jaw to expose the second group of leaf pairs.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: June 11, 2019
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventor: Weiyuan Wang
  • Patent number: 10285629
    Abstract: A motion monitoring system for healthcare surveillance with visual and audio alerts is provided to monitor patients and actively mitigate the damages due to patient movement. The system documents each event involving patient movement and the surrounding area in various medical setting. The system also has the ability for a specific monitoring of a single location and upon a motion detected, the system outputs an alert signal to trigger external devices, including but not limited to lights and sirens, to notify the healthcare device operator.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: May 14, 2019
    Assignee: SOUND IMAGING, INC.
    Inventor: Steven Soderholm
  • Patent number: 10265037
    Abstract: Disclosed is a shielding system for customized shielding of a patient or an operator from X-rays generated across a patient-supporting table. The shielding system includes a foundational block which is mounted via a clamping mechanism on the patient-supporting table. The shielding system has a rail with proximal and distal sections. The proximal section of the rail is twistable within an aperture of the foundational block and is arcuately movable in relation to patient-supporting table. One or more protective curtains are suspended from the rail.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 23, 2019
    Assignee: GLOBAL IMAGING SOLUTIONS COMPANY
    Inventor: Timothy P. Colling
  • Patent number: 10256095
    Abstract: A system and method for performing location specific processing of a workpiece is described. The method includes placing a microelectronic workpiece in a beam processing system, selecting a beam scan size for a beam scan pattern that is smaller than a dimension of the microelectronic workpiece, generating a processing beam, and processing a target region of the microelectronic workpiece by irradiating the processing beam along the beam scan pattern onto the target region within the beam scan size selected for processing the microelectronic workpiece.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: April 9, 2019
    Assignee: TEL Epion Inc.
    Inventors: Soo Doo Chae, Noel Russell, Joshua LaRose, Nicholas Joy, Luis Fernandez, Allen J. Leith, Steven P. Caliendo, Yan Shao, Vincent Lagana-Gizzo
  • Patent number: 10228655
    Abstract: A new optical arrangement that creates high efficiency, high quality Fresnel Incoherent Correlation Holography (FINCH) holograms using transmission liquid crystal GRIN (TLCGRIN) diffractive lenses has been invented. This is in contrast to the universal practice in the field of using a reflective spatial light modulator (SLM) to separate sample and reference beams. Polarization sensitive TLCGRIN lenses enable a straight optical path, have 95% transmission efficiency, are analog devices without pixels and are free of many limitations of reflective SLM devices. An additional advantage is that they create an incoherent holographic system that is achromatic over a wide bandwidth. Two spherical beams created by the combination of a glass and a polarization sensitive TLCGRIN lenses interfere and a hologram is recorded by a digital camera. FINCH configurations which increase signal to noise ratios and imaging speed are also described.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: March 12, 2019
    Assignee: Cell Optic, Inc.
    Inventors: Gary Brooker, Nisan Siegel, Joseph Rosen
  • Patent number: 10143854
    Abstract: The invention comprises a method and apparatus for imaging a tumor of a patient using one or more imaging systems positionable about the tumor and treating the tumor using positively charged particles, such as: (1) using a rotatable gantry support to support and rotate a section of a positively charged particle beam transport line about a rotation axis and a tumor of a patient; (2) using a rotatable and optionally extendable secondary support to support, circumferentially position, and laterally position a primary and optional secondary imaging system about the tumor; (3) image the tumor using the primary and optional secondary imaging system as a function of rotation and/or translation of the secondary support; and (4) treat, optionally concurrently with imaging, the tumor using the positively charged particles as a function of circumferential position of the section of the charged particle beam about the tumor.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: December 4, 2018
    Inventors: Susan L. Michaud, Daniel J. Raymond, W. Davis Lee
  • Patent number: 10147511
    Abstract: Linear ribs are formed radially with a center at a through-hole on one face of an X-ray transmissive film (radiolucent film) in an X-ray transmissive window (radiolucent window) to be used for an X-ray detector (radiation detector). The X-ray transmissive window faces a sample. A beam for irradiation to the sample passes through the through-hole, and X-rays (radiation) are radially emitted on a line extending through the through-hole and enter the X-ray transmissive window. Since the linear ribs are formed radially with the center at the through-hole, even X-rays entering at shallow angles with respect to the X-ray transmissive window are transmitted through the X-ray transmissive window at a probability equivalent to X-rays entering at deep angles. More X-rays are transmitted through the X-ray transmissive window, and thus the X-ray detector can detect X-rays with high efficiency.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: December 4, 2018
    Assignee: HORIBA, LTD.
    Inventors: Satoshi Ohashi, Yoshiaki Nakata
  • Patent number: 10128011
    Abstract: The invention relates to a device (3) for supporting packaging for transporting/storing radioactive materials (1) in a horizontal position, the supporting device including a structural base (10) and structures (12) for supporting the packaging, which structures are supported by the base (10) and project upwards therefrom. According to the invention, the device also includes, located at least in part above the structural base (10), a shroud (30) for guiding air for cooling the packaging by natural convection, the shroud (30) defining a recess (32) which is open towards the top and into which a portion of the packaging is intended to be inserted when the packaging (1) is supported in a horizontal position on the device, the shroud (30) including, at the bottom thereof, at least one opening (34) for allowing cooling air into the recess (32).
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 13, 2018
    Assignee: TN INTERNATIONAL
    Inventors: Olivier Bardon, Laurent Poque, Ludovic Garnier
  • Patent number: 10124191
    Abstract: The invention relates to a hadron therapy installation that comprises an irradiation unit (1) supported by a rotary support structure, so as to be able to rotate around a target volume (15) centered on the axis of rotation (22), to deliver a treatment beam (17) from different angles on the target volume (15). An imaging device (3, 4) is secured in rotation with the irradiation unit (1) and translatable relative to the irradiation unit (1) between a retracted position at the irradiation unit (1) and a lateral deployed position relative to the target volume (15), such that in its deployed position, the imaging device (3, 4) can rotate around the target volume (15) together with the irradiation unit (1). Such an installation can be used for a cone beam computed tomography method and/or a fluoroscopic imaging method on a patient to be treated in the hadron therapy installation.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: November 13, 2018
    Assignee: Ion Beam Applications S.A.
    Inventors: Alexandre Debatty, Jean-Claude Amélia, Sébastien De Neuter
  • Patent number: 10128014
    Abstract: Methods and devices for controlling movement of a carriage of a multi-leaf collimator are provided. In one aspect, a method includes obtaining a desired position of each of a set of leaves on the carriage in each of a plurality of segments from a field, determining an allowable moving range set of the carriage according to the desired position, the allowable moving range set including a respective allowable moving range of the carriage in each of the segments, determining a respective position of the carriage in each of the segments according to the allowable moving range set, and controlling the movement of the carriage according to the determined positions of the carriage in the segments.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: November 13, 2018
    Assignee: Shenyang Neusoft Medical Systems Co., Ltd.
    Inventors: Xinghu Xu, Meng Chai
  • Patent number: 10085699
    Abstract: Various configurations of shielding materials within shielding layers, such as for use in shielding radiation from implanted radioactive carriers, are discussed herein.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: October 2, 2018
    Assignee: GT Medical Technologies, Inc.
    Inventors: David Brachman, Evan K. Fram, Peter Nakaji
  • Patent number: 9960024
    Abstract: In some implementations described herein, a collimator that is biasable is provided. The ability to bias the collimator allows control of the electric field through which the sputter species pass. In some implementations of the present disclosure a collimator that has a high effective aspect ratio while maintaining a low aspect ratio along the periphery of the collimator of the hexagonal array of the collimator is provided. In some implementations, a collimator with a steep entry edge in the hexagonal array is provided. It has been found that use of a steep entry edge in the collimator reduces deposition overhang and clogging of the cells of the hexagonal array. These various features lead to improve film uniformity and extend the life of the collimator and process kit.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: May 1, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Martin Lee Riker, Fuhong Zhang, Anthony Infante, Zheng Wang
  • Patent number: 9897692
    Abstract: In an electromagnetic cloaking structure, a refractive index distribution has a high refractive index region which is provided around a shielding space and has a maximum value in a plane surrounding the shielding space and in which a refractive index decreases gradually from the centroid of the shielding space along a radial line passing through the plane so as to be close to an average refractive index and a low refractive index region which has a minimum value at two points having the shielding space and the high refractive index region interposed therebetween on a virtual optical axis passing through the shielding space and in which the refractive index increases gradually from the two points in a direction opposite to the high refractive index region on the virtual optical axes, on which the two points are placed, so as to be close to the average refractive index.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: February 20, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Akihiko Ohtsu, Hideki Yasuda
  • Patent number: 9891585
    Abstract: A new optical arrangement that creates high efficiency, high quality Fresnel Incoherent Correlation Holography (FINCH) holograms using transmission liquid crystal GRIN (TLCGRIN) diffractive lenses has been invented. This is in contrast to the universal practice in the field of using a reflective spatial light modulator (SLM) to separate sample and reference beams. Polarization sensitive TLCGRIN lenses enable a straight optical path, have 95% transmission efficiency, are analog devices without pixels and are free of many limitations of reflective SLM devices. An additional advantage is that they create an incoherent holographic system that is achromatic over a wide bandwidth. Two spherical beams created by the combination of a glass and a polarization sensitive TLCGRIN lenses interfere and a hologram is recorded by a digital camera. FINCH configurations which increase signal to noise ratios and imaging speed are also described.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: February 13, 2018
    Assignee: CellOptic, Inc.
    Inventor: Gary Brooker
  • Patent number: 9867583
    Abstract: Disclosed is a shielding system for customized shielding of a patient or an operator from X-rays. The shielding system is mounted on a radiation table with a longitudinal edge. In use, the table is reversibly movable between a first (usually horizontal) orientation and a second (usually vertical orientation). Extending from the radiation table is a post that is associated with a patient handgrip subassembly. The subassembly has a bracket that is securably movable along the longitudinal edge. In the shielding system there are foundational blocks with apertures that receive movable rails from which protective curtains are suspended.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: January 16, 2018
    Assignee: GLOBAL IMAGING SOLUTIONS COMPANY
    Inventor: Timothy P. Colling
  • Patent number: 9865048
    Abstract: According to one embodiment, a radiotherapy information generation apparatus includes a region specific unit and a planning estimation unit. The region specific unit is configured to specify at least one area defined with respect to a tumor by analysis processing of diagnostic image data. The planning estimation unit is configured to display estimation information of planned dose values calculated based on the area and expected dose values of a radiation. Further, according to another embodiment, a radiotherapy information generation method includes specifying at least one area defined with respect to a tumor by analysis processing of diagnostic image data; and displaying estimation information of planned dose values calculated based on the area and expected dose values of a radiation.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: January 9, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventor: Satoshi Wakai
  • Patent number: 9855687
    Abstract: Methods of and devices for manufacturing a multi-layered microfluidic filter are disclosed. In one embodiment, method of manufacturing a multi-layered filter comprises providing a first molding plate that includes a plurality of apertures and is coupled to a flow stream source, applying from the flow stream source a first flow stream to pass through the plurality of apertures of the first molding plate, forming a first membrane layer comprising a first set of pores using the first molding plate and the first flow stream, controlling the first flow stream to generate a second flow stream from the first set of pores of the first membrane layer, and forming a second membrane layer comprising a second set of pores using the second flow stream and the first membrane layer.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: January 2, 2018
    Inventor: Yung-Chieh Tan
  • Patent number: 9808652
    Abstract: A collimator for a radiotherapy apparatus comprising a block of radiation-attenuating material having a front face forming the leading edge of the block and at least one main rear face defining the trailing edge of the block, in which the least one main rear face has a material disposed thereon and is non-parallel to the front face. The collimator may form part of a radiotherapy apparatus, and methods of operation of such apparatus are described.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: November 7, 2017
    Assignee: Elekta AB (Publ)
    Inventors: Virgil Willcut, Martin Broad, David Anthony Roberts
  • Patent number: 9812228
    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: December 2, 2016
    Date of Patent: November 7, 2017
    Assignee: Lockheed Martin Corporation
    Inventors: Stephen Gonya, Jesse Iannon
  • Patent number: 9776017
    Abstract: A spot scanning (SS) ion therapy system configured for dynamic trimming of an ion particle pencil beam to reduce the amount of the radiation dosage outside of a target boundary.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: October 3, 2017
    Assignee: University of Iowa Research Foundation
    Inventors: Ryan Flynn, Daniel Hyer, Dongxu Wang, Patrick Hill, Yves Claereboudt
  • Patent number: 9774838
    Abstract: A method of ambient light suppression in an imaging system, including illuminating leaves of a multi-leaf collimator (MLC) with a first light of a lighting system inside a housing of the MCL, receiving ambient light inside the housing of the MLC through an aperture of the MLC, and capturing, using an imaging system having optics situated inside the housing of the MLC, an image of the leaves of the MLC illuminated with the first light and the ambient light. The method may further include, suppressing the ambient light in the first image to generate a second image of the leaves of the MLC and detecting a feature of the leaves of the MLC in the second image.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: September 26, 2017
    Assignee: ACCURAY INCORPORATED
    Inventors: Jonathan Chappelow, Petr Jordan, Jian Gao, Sarbjit Singh, Trevor Laing, Calvin Maurer
  • Patent number: 9734922
    Abstract: Illustrative embodiments provide modular nuclear fission deflagration wave reactors and methods for their operation. Illustrative embodiments and aspects include, without limitation, modular nuclear fission deflagration wave reactors, modular nuclear fission deflagration wave reactor modules, methods of operating a modular nuclear fission deflagration wave reactor, and the like.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: August 15, 2017
    Assignee: TerraPower, LLC
    Inventors: Charles E. Ahlfeld, John Rogers Gilleland, Roderick A. Hyde, Muriel Y. Ishikawa, David G. McAlees, Nathan P. Myhrvold, Charles Whitmer, Lowell L. Wood, Jr., Ashok Odedra
  • Patent number: 9681530
    Abstract: A device controller controls an acceleration-related devices and an extraction-related devices of an accelerator for accelerating and extracting a particle beam, in such a way that the controller checks, at a time point when receiving a master clock pulse, that preparation for operating the acceleration-related devices is completed and then commands the acceleration-related devices to operate in accordance with an operation pattern corresponding to a prescribed energy of the particle beam, and commands the acceleration-related devices to operate in accordance with an extracting operation pattern when an extraction enable signal indicating that the particle beam reaches the prescribed energy is turned ON and an extraction-related device setting-status signal indicating that completion of setting the extraction-related devices for the prescribed energy is ON.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: June 13, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kengo Sugahara, Shuhei Odawara, Kazuhiro Nishi
  • Patent number: 9662077
    Abstract: A photon-counting X-ray CT apparatus in an embodiment includes an X-ray tube, an X-ray detector, correction circuitry, and processing circuitry. The X-ray tube is configured to irradiate a subject with X-rays. The X-ray detector is configured to include an X-ray detection element that detects photons of the X-rays that the X-ray tube emits. The correction circuitry is configured to correct a count value observed by the X-ray detection element in each of a plurality of energy bins, based on at least one of the probability of escape in the X-ray detection element and the probability of crosstalk in the X-ray detection element. The processing circuitry is configured to generate a reconstruction image, based on the count values corrected by the correction circuitry.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: May 30, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventor: Kenta Moriyasu
  • Patent number: 9630025
    Abstract: Methods and apparatus are provided for planning and delivering radiation treatments by modalities which involve moving a radiation source along a trajectory relative to a subject while delivering radiation to the subject. In some embodiments the radiation source is moved continuously along the trajectory while in some embodiments the radiation source is moved intermittently. Some embodiments involve the optimization of the radiation delivery plan to meet various optimization goals while meeting a number of constraints. For each of a number of control points along a trajectory, a radiation delivery plan may comprise: a set of motion axes parameters, a set of beam shape parameters and a beam intensity.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: April 25, 2017
    Assignee: Varian Medical Systems International AG
    Inventor: Karl Otto
  • Patent number: 9612534
    Abstract: A substrate may be disposed on a substrate support in a flood exposure treatment system. A flood exposure dose profile may be selected. The substrate may be exposed to flood irradiation from a source, and the flood irradiation may be terminated when the selected flood exposure dose profile is achieved. Exposing the substrate to flood irradiation may comprise controlling at least one of a substrate rotation rate, a source scanning rate, a substrate scanning rate, a source power setting, a distance from the source to the substrate, a source aperture setting, an angle of incidence of flood irradiation on the substrate, and a source focus position to achieve the selected flood exposure dose profile.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: April 4, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Mark L. Schattenburg, Rudolf H. Hendel, Michael Carcasi
  • Patent number: 9551676
    Abstract: There is provided a System and Method For Determining The Radiological Composition of Material Layers Within a Conduit. The system and method disclosed is equally applicable to pipes, vessels, and conduits as well as medical applications such as determining vessel thickness, occlusion, scarring, or the like in humans and animals. A phantom setup is disclosed that has a phantom containing a test standard such as a reactor water test standard, removable plates, a collimator and probe with a spectrometer display. The phantom setup provides a baseline data set that can be used in conjunction with field measurements to determine the composition of materials within the conduit, such as corrosion or the like. The baseline data set may be semi-logarithmic and contains spectrometer readings of various plate thicknesses or quantities of plates.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: January 24, 2017
    Assignee: University of Rochester
    Inventor: Frederic J. Mis
  • Patent number: 9526463
    Abstract: Various configurations of shielding materials within shielding layers, such as for use in shielding radiation from implanted radioactive carriers, are discussed herein.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: December 27, 2016
    Assignee: GammaTile LLC
    Inventors: David Brachman, Evan K. Fram, Peter Nakaji
  • Patent number: 9518940
    Abstract: A portable X-ray diffraction apparatus is provided which can be held by a person and on which an image of a spot to be measured can be viewed. The portable X-ray diffraction apparatus includes: X-ray irradiation means that irradiates a sample with collimated X-rays; diffracted X-ray detection means that detects a collimated portion of diffracted X-rays among X-rays diffracted from the sample by the irradiation of the X-rays with the X-ray irradiation means; and signal processing means that processes a signal outputted from the diffracted X-ray detection means. An X-ray diffraction method is used which includes: irradiating a sample with collimated continuous-wavelength X-rays; extracting a collimated portion of diffracted X-rays diffracted from the sample irradiated with the X-rays and condensing the extracted collimated portion of the diffracted X-rays; detecting, using an energy dispersive detection element, the condensed diffracted X-rays; and processing a signal detected by the detection element.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: December 13, 2016
    Assignee: RIGAKU CORPORATION
    Inventors: Asao Nakano, Yoshinori Ueji
  • Patent number: 9508459
    Abstract: A method to prevent stress corrosion cracking of a storage canister 1, wherein stress corrosion cracking is prevented by applying a compressive stress to a range where a tensile residual stress is generated on a metallic body 2 by welding a cover 4 to a top 2a of the body 2. A first compressive stress is applied beforehand to a range L of the body 2 where a tensile residual stress is expected to be generated by the welding of the cover 4, the tensile residual stress is canceled by welding the cover 4 with a compressive residual stress generated in the range L, and then a second compressive stress is applied so as to generate a compressive residual stress over the range L.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 29, 2016
    Assignees: HITACHI ZOSEN CORPORATION, CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY
    Inventors: Akikazu Kitagawa, Akio Ohiwa, Keisuke Okada, Katsunori Kusunoki, Tomohiro Tanaka, Akihito Gohda, Yasuhiro Fukai, Masanori Goto, Koji Shirai
  • Patent number: 9480859
    Abstract: This is a new technique of producing high energy X-rays for radiation therapy at a patient's level. The dose delivery system uses a linear accelerator with no flattening filter. The technique improves patient radiation therapy by reducing radiation scattered to surrounding normal tissue and reducing electron contamination. It increases dose rate to shorten treatment time. The flattening filter reduces the efficiency of the beam by reducing the fluence and increasing scattered radiation. This technique involves removal of the flattening filter. It uses inverse planning to shape the dose distribution.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 1, 2016
    Assignee: The University of Toledo
    Inventors: E. Ismael Parsai, John J. Feildmeier
  • Patent number: 9442037
    Abstract: A system for storing radioactive materials includes a canister having a first hermetically sealed vessel having a first cavity, a second hermetically sealed vessel having a second cavity, the first vessel positioned in the second cavity, an interstitial space between the first and second vessels, and a test port through the second vessel in fluidic communication with the interstitial space. A conduit has a first end fluidically coupled to the test port, and a removable seal is operably coupled to a second end of the conduit.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: September 13, 2016
    Inventor: Stephen J. Agace
  • Patent number: 9406412
    Abstract: The present invention relates to a variable pin-hole type collimator applied to a radiation imaging device. The variable pin-hole type collimator comprises: a hole forming module having a plurality of apertures which are stacked in a direction of irradiation such that each aperture defines a penetrating-space through which radiation passes; a plurality of driving modules which are configured that each driving module varies each penetrating-space of the aperture independently; and a collimating controller to control the driving modules such that each penetrating-space of the aperture varies independently and the hole forming module forms a pin-hole through which radiation passes. Therefore, a collimator having various types can be embodied by the variation of the pin-hole shape.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: August 2, 2016
    Assignee: Korea University Research and Business Machines
    Inventors: Hakjae Lee, Kisung Lee, Jaekeon Bae
  • Patent number: 9399147
    Abstract: A particle beam irradiation chamber in which a passage having a first opening part at a side of an inner wall and a second opening part at a side of an outer wall is provided and which has an isocenter inside the chamber, wherein a first line segment which connects the center of the first opening part and the center of the second opening part passes inside the passage, an angle, which is formed by a second segment, which connects the center of the first opening part and the isocenter and the first line segment, is smaller than 180 degrees, and a width of the passage is narrower than a width of opening of the first opening part.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: July 26, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Nobuyuki Haruna, Yusuke Sakamoto, Tadashi Katayose
  • 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