Beam Control Patents (Class 378/145)
  • Patent number: 10539688
    Abstract: In a conventional phase-contrast X-ray imaging system, a source grating G0 generates an array of partially coherent line sources which illuminate an object and thereafter phase grating G1. The periodicity in the phase grating is self-imaged at certain instances further away from the X-ray source and sampled by a mechanically movable third absorptive analyzer grating G2 before the demodulated fringe intensity is detected by a conventional X-5 ray detector. This application proposes to directly demodulate the fringe intensity using a structured scintillator having a plurality of slabs in alignment with sub-pixels of an optical detector layer, in combination with electronic signal read-out approaches. Therefore, a mechanically movable third absorptive analyzer grating G2 can be omitted from a phase-contrast X-ray imaging system.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 21, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Roger Steadman Booker, Ewald Roessl, Walter Ruetten
  • Patent number: 10504926
    Abstract: A thin film transistor, a method for fabricating the same, an array substrate, and a display panel are disclosed. The method includes: forming a semiconductor film comprising metallic elements, an etching stop film, and a source and drain film on a substrate in this order; and forming a pattern comprising an active layer, an etching stop layer, and a source and drain on the active layer by using a same mask plate, wherein the etching stop layer electrically connects the source and drain with the active layer. Since an etching stop film is formed on a semiconductor film comprising metallic elements, during etching the metal layer, the etching stop film can protect the semiconductor film comprising metallic elements from being etched, and this ensures the performance of the resultant active layer.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: December 10, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qiang Zhou, Chaofan Zhu, Xingfeng Ren
  • Patent number: 10485492
    Abstract: The invention relates to a source-detector arrangement (11) of an X-ray apparatus (10) for grating based phase contrast computed tomography. The source-detector arrangement comprises an X-ray source (12) adapted for rotational movement around a rotation axis (R) relative to an object (140) and adapted for emittance of an X-ray beam of coherent or quasi-coherent radiation in a line pattern (21); and an X-ray detection system (16) including a first grating element (24) and a second grating element (26) and a detector element (6); wherein the line pattern of the radiation and a grating direction of the grating elements are arranged orthogonal to the rotation axis; and wherein the first grating element has a first grating pitch varied dependent on a cone angle (?) of the X-ray beam and/or the second grating element has a second grating pitch varied dependent on the cone angle of the X-ray beam.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: November 26, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Thomas Koehler, Ewald Roessl, Rolf Karl Otto Behling, Peter Benjamin THeodor Noel, Franz Pfeiffer
  • Patent number: 10459111
    Abstract: An X-ray based inspection systems providing radiographic imaging for cargo inspection and material discrimination with adaptive control dependent upon characteristics of the cargo under inspection. A packet of X-ray pulses with controllable packet duration is produced that allows multi-energy material discrimination in a single scan line and real-time adjustment of packet duration to adapt to cargo attenuation. In addition, adaptive dynamic adjustment of the operational characteristic of the detector channels increases the effective dynamic range and as a result increases the penetration and range of thicknesses where material discrimination is possible. The material discrimination technique is applied within a single packet of short pulses of several hundred nanoseconds. Feedback from the detection system is used to control the packet duration of each packet of X-ray pulses in order to adapt scan parameters to the object that is being imaged.
    Type: Grant
    Filed: May 23, 2015
    Date of Patent: October 29, 2019
    Assignee: RadiaBeam Technologies, LLC
    Inventors: Anatoli Arodzero, Salime Max Boucher, Alex Murokh, Sergey Vinogradov, Sergey Kutsaev
  • Patent number: 10441367
    Abstract: A computer-assisted imaging and localization system assists the physician in positioning implants and instruments into a patient's body. The system displays overlapping images—one image of the surgical site with the patient's anatomy and another image showing the implant(s) or instrument(s). The overlapping image of the implant/instrument is moved over the static image of the anatomy as the implant/instrument is moved. These moving image of the implant/instrument can be an unaltered image or an image altered to intensify or mitigate the anatomical or non-anatomical aspects of the moving image. Sliding these images over one another helps the surgeon in positioning devices or instruments with a high degree of accuracy and with a limited number of additional x-rays.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: October 15, 2019
    Assignee: TrackX Technology, LLC
    Inventors: Robert E. Isaacs, Samuel Morris Johnston, David Alexander Skwerer
  • Patent number: 10444855
    Abstract: A system and method for displaying images of internal anatomy includes an image processing device configured to provide high resolution images of the surgical field from low resolution scans during the procedure. The image processing device digitally manipulates a previously-obtained high resolution baseline image to produce many representative images based on permutations of movement of the baseline image. During the procedure a representative image is selected having an acceptable degree of correlation to the new low resolution image. The selected representative image and the new image are merged to provide a higher resolution image of the surgical field. The image processing device is also configured to provide interactive movement of the displayed image based on movement of the imaging device, and to permit placement of annotations on the displayed image to facilitate communication between the radiology technician and the surgeon.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: October 15, 2019
    Assignee: NuVasive, Inc.
    Inventors: Robert E Isaacs, Samuel Morris Johnston, David Alexander Skwerer, Randall Graham Campbell
  • Patent number: 10433915
    Abstract: A computer-assisted imaging and localization system assists the physician in positioning implants and instruments into a patient's body. The system displays overlapping images—one image of the surgical site with the patient's anatomy and another image showing the implant(s) or instrument(s). The overlapping image of the implant/instrument is moved over the static image of the anatomy as the implant/instrument is moved. These moving image of the implant/instrument can be an unaltered image or an image altered to intensify or mitigate the anatomical or non-anatomical aspects of the moving image. Sliding these images over one another helps the surgeon in positioning devices or instruments with a high degree of accuracy and with a limited number of additional x-rays.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: October 8, 2019
    Assignee: TrackX Technology, LLC
    Inventors: Robert E. Isaacs, Samuel Morris Johnston, David Alexander Skwerer
  • Patent number: 10436957
    Abstract: Diffractive waveplate lenses, mirrors, devices, systems and methods for performing imaging over a broad spectral band in imaging systems, such as but not limited to astronomical imaging, surveillance imaging, and in communication systems, such as laser communication systems. Corrector mirrors are used with a flat diffractive wave diffractive waveplate lens so that chromatic aberrations of the diffractive waveplate lens are reduced with the imaging system.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: October 8, 2019
    Assignee: Beam Engineering for Advanced Measurements Co.
    Inventors: Nelson V. Tabirian, Zhi J. Liao, David E. Roberts
  • Patent number: 10433805
    Abstract: This X-ray imaging apparatus for rounds includes inside a cart a battery, a charging circuit adapted to limit charging current flowing through the battery, and a control circuit, in which the control circuit includes: a power supply voltage detecting part adapted to detect power supply voltage supplied from an external power supply; a charged voltage detecting part adapted to detect the charged voltage of the battery; a charging current detecting part adapted to detect charging current at the time when the battery is charged; and a charging current value control part adapted to, depending on a variation in the power supply voltage detected by the power supply voltage detecting part, control a charging current value set for the charging circuit.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 8, 2019
    Assignee: Shimadzu Corporation
    Inventor: Norimasa Hishida
  • Patent number: 10422934
    Abstract: A diffraction grating 1 includes a surface 12 having grooves 14 therein, each groove 14 providing a diffracting surface for light incident upon the diffracting surface. The grooves 14 are separated from each other by lands 20 upon the surface 12. The lands 20 are of predetermined varying width, whereby the diffractive efficiency of the grating 1 varies across the extent of the grating 1.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: September 24, 2019
    Assignee: BAE SYSTEMS plc
    Inventors: Mohmed Salim Valera, James Raymond Leighton
  • Patent number: 10420959
    Abstract: Provided is an energy degrader including an attenuation member that becomes radioactive only to a lesser extent than conventional attenuation members. An attenuation member (11) is a graphite film, the graphite film has a thermal conductivity, in a surface direction, of 1200 W/(m·K) or greater, and the graphite film has a thickness of 0.1 ?m or greater and 50 ?m or less.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 24, 2019
    Assignee: KANEKA CORPORATION
    Inventors: Mutsuaki Murakami, Atsushi Tatami, Masamitsu Tachibana
  • Patent number: 10417761
    Abstract: An apparatus and related method for processing image data supplied by a scanning phase contrast or dark-field imaging apparatus (MA). Beam hardening artifact in phase contrast and dark-field imaging can be reduced by applying a beam hardening processing operation by a beam hardening processing module (BHC) in respect of a plurality of detector readings that contribute signals to the same image pixel position or geometric ray of an imaging region of the apparatus (MA). In one embodiment, a phantom body (PB) is used to acquire calibration data on which the beam hardening processing is based.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: September 17, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Thomas Koehler, Heiner Daerr, Ewald Roessl
  • Patent number: 10393891
    Abstract: Various embodiments described herein may include a detector array for a CT imaging system. The detector array includes a pixel array in which each pair of adjacent pixels in the pixel array may be separated by a collimator (e.g., located between each row and column of the pixel array) that absorbs photons and each pixel in the pixel array includes a sub-pixel array. The collimator absorbs photons that strike at a boundary between adjacent pixels. Each sub-pixel may have an anode that is connected to an ASIC channel. When a sub-pixel in a pixel detects a photon, signals of a plurality of sub-pixels in the pixel are automatically summed, including the sub-pixel that detected the photon.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: August 27, 2019
    Assignee: REDLEN TECHNOLOGIES, INC.
    Inventors: Kris Iniewski, Glenn Bindley
  • Patent number: 10332647
    Abstract: Provided is a light source device for a collimator capable of improving an illuminance ratio in an inside of a visible light's radiation field to an outside thereof. The light source device for a collimator includes an LED with a light emitting portion that irradiates visible light and a visible light guide member. The visible light guide member may have a main body, a spacer, and a base. In the main body, a through-hole of a truncated conical shape is formed. The through-hole of a truncated cone shape forms a first opening at a first surface of the main body on a side of the LED and a second opening a second surface of the main body opposite to the first surface. The first opening may be smaller than the second opening. The conical surface of the through-hole having the truncated conical shape is formed as a mirror surface which reflects the visible light irradiated from the LED with high reflectance.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: June 25, 2019
    Assignee: Shimadzu Corporation
    Inventors: Narumi Yamaguchi, Koji Watadani, Satoshi Yamaguchi
  • Patent number: 10295486
    Abstract: An x-ray spectrometer system comprising an x-ray imaging system with at least one achromatic imaging x-ray optic and an x-ray detection system. The optical train of the imaging system is arranged so that its object focal plane partially overlaps an x-ray emitting volume of an object. An image of a portion of the object is formed with a predetermined image magnification at the x-ray detection system. The x-ray detection system has both high spatial and spectral resolution, and converts the detected x-rays to electronic signals. In some embodiments, the detector system may have a small aperture placed in the image plane, and use a silicon drift detector to collect x-rays passing through the aperture. In other embodiments, the detector system has an energy resolving pixel array x-ray detector. In other embodiments, wavelength dispersive elements may be used in either the optical train or the detector system.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: May 21, 2019
    Assignee: Sigray, Inc.
    Inventors: Wenbing Yun, Sylvia Jia Yun Lewis, Janos Kirz, Benjamin Donald Stripe
  • Patent number: 10254415
    Abstract: A scintillator panel includes alternately arranged scintillator portions and non-scintillator portions, in which the scintillator portions include a stress-relaxing portion. Preferably, a stress-relaxing portion content in 100% by volume of the scintillator portions is from 2 to 50% by volume.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: April 9, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Mika Matsusaka, Kei Isoda
  • Patent number: 10188878
    Abstract: A radiotherapy system comprising an X-ray tube operating at 100 to 800 kVp for providing X-ray beams of 30 mm diameter or less and configured to move the entrance beam footprint on the body during irradiation to any arbitrary sequential position set that has been predetermined to limit the intervening tissue dose rate at any one location to a safe level, such that the sum of the skin area traversed during treatment is 20 to 100 times the beam area.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: January 29, 2019
    Inventor: John K. Grady
  • Patent number: 10172580
    Abstract: A phase contrast imaging apparatus (MA) and related image processing method. The imaging apparatus includes a movable arm (AR) that carries a detector (D) and one or more interferometric gratings (G0,G1,G2). The imaging apparatus includes a rigidizer (RGD) to control the rigidity of at least the arm (AR) or a mounting (GM) for the gratings (G0,G1,G2). This allows controlling a drift of a Moiré pattern as detected in a sequence of readouts. A phase of the so controlled Moiré pattern can be used to calibrate the imaging apparatus by using the image processing method.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: January 8, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Ewald Roessl, Hendrik Albert Pastink, Thomas Koehler, Heiner Daerr, Udo Van Stevendaal, Gerhard Martens
  • Patent number: 10175185
    Abstract: A doubly bent X-ray spectroscopic device (1) according to the present invention includes: a glass plate (3) which is deformed into a shape having a doubly bent surface by being sandwiched between a doubly curved convex surface (21a) of a convex forming die (21) and a doubly curved concave surface (22a), of a concave forming die (22), that matches the doubly curved convex surface (21a), and being heated to a temperature of 400° C. to 600° C.; and a reflection coating (5) configured to reflect X-rays, which is formed on a concave surface (3a) of the deformed glass plate (3).
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: January 8, 2019
    Assignee: Rigaku Corporation
    Inventor: Naoki Kawahara
  • Patent number: 10139920
    Abstract: A system and method for displaying images of internal anatomy includes an image processing device configured to provide high resolution images of the surgical field from low resolution scans during the procedure. The image processing device digitally manipulates a previously-obtained high resolution baseline image to produce many representative images based on permutations of movement of the baseline image. During the procedure a representative image is selected having an acceptable degree of correlation to the new low resolution image. The selected representative image and the new image are merged to provide a higher resolution image of the surgical field. The image processing device is also configured to provide interactive movement of the displayed image based on movement of the imaging device, and to permit placement of annotations on the displayed image to facilitate communication between the radiology technician and the surgeon.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: November 27, 2018
    Assignee: NuVasive, Inc.
    Inventors: Robert E Isaacs, Samuel Morris Johnston, David Alexander Skwerer, Randall Graham Campbell
  • Patent number: 10128015
    Abstract: An X-ray shield grating includes a substrate on which a plurality of recessed portions are arranged, and metal that is arranged in each of the recessed portions. The substrate includes a bent region that is bent in an arrangement direction in which the plurality of recessed portions are arranged. A radius of curvature of the bent region is 200 millimeters or less. In the bent region, a maximum value of a width of a region sandwiched between two adjacent recessed portions of the plurality of recessed portions and a width of the substrate in an end portion of the bent region are less than or equal to three times a minimum value of the width of the region sandwiched between the two adjacent recessed portions.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: November 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Teshima, Takashi Nakamura, Genta Sato
  • Patent number: 10108014
    Abstract: A near-eye optical display system utilized in augmented reality devices includes a see-through waveguide display having optical elements configured for in-coupling virtual images from an imager, exit pupil expansion, and out-coupling virtual images with expanded pupil to the user's eye. The near-eye optical display system further includes a curved two-sided array of electrically-activated tunable liquid crystal (LC) microlenses that is located between the waveguide and the user's eye. The LC microlenses are distributed in layers on each side of the two-sided array. Each pixel in the waveguide display is mapped to an LC microlens in the array, and multiple nearby pixels may be mapped to the same LC microlens. A region of the waveguide display that the user is gazing upon is detected and the LC microlens that is mapped to that region may be electrically activated to thereby individually shape the wavefront of each pixel in a virtual image.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: October 23, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Tuomas Vallius, Mikko Antton Juhola
  • Patent number: 10092356
    Abstract: Radial emission optical fiber terminations that include conical elements can prevent axial emission and redirect all incident light to radial positions. One termination includes an optical fiber having an up-tapered terminus, the up-tapered terminus having a maximum taper diameter of at least 1.5 times the core diameter and ending at a cone-tip which has an apex angle in a range of about 70° to about 100°. Another termination includes a fiber cap that is a unitary construction of a glass tube and an optical element that bisects the glass tube. The glass tube includes an open end adapted to receive an optical fiber and a closed end. The optical element, consisting of fused quartz or fused silica, has an input face proximal to the open end of the glass tube and a conical face proximal to the closed end of the glass tube.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: October 9, 2018
    Assignee: InnovaQuartz LLC
    Inventors: Stephen E. Griffin, Stuart F. Watson
  • Patent number: 10076298
    Abstract: A medical image system includes: X-ray equipment having a Talbot interferometer or a Talbot-Lau interferometer and including: an X-ray source configured to emit X-rays; a plurality of gratings arranged in a emitting direction of the X-rays; and an X-ray detector irradiated by the X-ray source and having conversion elements for accumulating charge and generating electrical signal to read the electrical signals generated to acquire moire fringe image; a subject absorption image generation unit configured to generate a subject absorption image based on moire fringe images containing a subject; a subjectless absorption image generation unit configured to generate a subjectless absorption image based on subjectless more fringe images; and an image unevenness correction unit configured to correct image unevenness of the subject absorption image, the medical image system further including a subjectless absorption image correction unit, wherein the image unevenness correction unit corrects image unevenness of the sub
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: September 18, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Junko Yoshida
  • Patent number: 10074451
    Abstract: Embodiments relate to an X-ray interferometer for imaging an object comprising: a phase grating for effecting in correspondence with the phase grating geometry a phase shift to at least a part of X-ray incident onto the phase grating; and an absorption grating for effecting in correspondence with the absorption grating geometry absorption to at least a part of X-ray incident onto the absorption grating. The grating period of the phase grating, and the grating period of the absorption grating may be dimensioned such that a detector for X-rays can be placed at a relatively large distance away from the absorption grating such the phase contrast sensitivity of the image of the object detected by the detector remains substantially unaffected.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: September 11, 2018
    Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE S.A.—RECHERCHE ET DEVELOPPEMENT
    Inventors: Christian Kottler, Vincent Revol
  • Patent number: 9971121
    Abstract: The invention relates to a device (98) for the spatial alignment of X-ray optics (100) with an entry point (104) and an exit point (108). The device (98) comprises a parallel displacement mechanism (200) for gauging the entry point (104) of the X-ray optics (100) to a first predetermined point (100) by parallel displacement of the X-ray optics (100). Further, the device (98) comprises a goniometer mechanism (300) for gauging the exit point (108) of the X-ray optics (100) to a second predetermined point (106) by at least approximate pivoting of the X-ray optics (100) around the entry point (104). Further, the invention relates to an apparatus (96) which comprises the device (98) and X-ray optics (100).
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: May 15, 2018
    Assignee: BRUKER NANO GMBH
    Inventors: Thomas Baumann, Ulrich Waldschläger
  • Patent number: 9959602
    Abstract: An image processing device and a radiography apparatus each include a pixel selection unit configured to select pixels of an image based on pixel values of pixels of the image obtained by capturing an image of a subject, and a subtraction processing unit configured to subtract, from the image, a line artifact extracted using a profile in predetermined direction and is based on the pixels selected by the pixel selection unit.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 1, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tsuyoshi Kobayashi
  • Patent number: 9955936
    Abstract: According to one embodiment, An X-ray diagnostic apparatus includes an X-ray generator that generates X rays, an X-ray detector that detects the X rays generated by the X-ray generator and having passed through a subject, an X-ray restrictor that restricts an irradiation range on a detection surface of the X-ray detector of the X rays generated by the X-ray generator, a signal input unit that inputs a biomedical signal related to the subject, a signal detector that detects a biomedical change from the biomedical signal and also outputs an extension switching signal, and an X-ray restrictor controller that controls the X-ray restrictor such that the irradiation range of the X rays is extended in response to output of the extension switching signal.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: May 1, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yuki Totsuka, Masaharu Soya, Ryuji Zaiki, Masahiro Ozawa
  • Patent number: 9928618
    Abstract: An X-ray imaging apparatus is provided. The X-ray imaging apparatus includes an X-ray generator configured to radiate X-rays onto an object having a region of interest (ROI) and a non-ROI, a filter configured to adjust an X-ray dose of the X-rays incident on the ROI and the non-ROI, an X-ray detector configured to detect the X-rays transmitted through the object and convert the X-rays into X-ray data, and an image processing unit configured to obtain a frame image using the X-ray data, register the obtained frame image to a previous frame image, synthesize the frame image and the previous frame image, and generate a reconstructed frame image.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: March 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Hak Lee, Dong Goo Kang, Young Hun Sung, Jae Mock Yi, Ji Young Choi, Seok Min Han
  • Patent number: 9910276
    Abstract: In an optical system that includes a waveguide with multiple diffractive optical elements (DOEs) incorporating diffraction gratings, light exiting a trailing edge of an upstream DOE enters a leading edge of a downstream DOE. One or more of the DOEs may include a leading and/or a trailing edge that have a graded profile. At a graded trailing edge of an upstream DOE, grating height smoothly decreases from full height to shallow height as a function of the proximity to the trailing edge. At a graded leading edge of the downstream DOE grating height smoothly increases from shallow height to full height as a function of distance away from the leading edge. By reducing a sharp boundary at the interface between the upstream and downstream DOEs, the graded profiles of the DOE edges enable optical resolution to be maintained decreasing sensitivity to misalignment between the DOEs that may occur during manufacturing.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 6, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tuomas Vallius, Lauri Sainiemi, Tapani Levola, Marco Mattila
  • Patent number: 9883844
    Abstract: A breast thickness measuring apparatus and a breast thickness measuring method are applied to a radiographic image capturing system. After a breast, which is placed on a support table, has been compressed by a compression plate having a marker disposed thereon, the breast is irradiated with radiation emitted from a radiation source. A radiographic image is generated on the basis of radiation that has passed through the breast, and a marker image, which is included within the radiographic image, is detected by a marker detector. Finally, the thickness of the compressed breast is calculated by a thickness calculator on the basis of a position of the detected marker image, a position of the radiation source, and information concerning the compression plate.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: February 6, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Takao Kuwabara
  • Patent number: 9826949
    Abstract: A raw DPC (differential phase contrast) image of an object is acquired. The background phase distribution due to the non-uniformity of the grating system is acquired by the same process without an object in place, and the true DPC image of the object is acquired by subtracting the background phase distribution from the raw DPC image.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: November 28, 2017
    Assignee: University of Rochester
    Inventors: Ruola Ning, Weixing Cai
  • Patent number: 9785246
    Abstract: A system and method for displaying images of internal anatomy includes an image processing device configured to provide high resolution images of the surgical field from low resolution scans during the procedure. The image processing device digitally manipulates a previously-obtained high resolution baseline image to produce many representative images based on permutations of movement of the baseline image. During the procedure a representative image is selected having an acceptable degree of correlation to the new low resolution image. The selected representative image and the new image are merged to provide a higher resolution image of the surgical field. The image processing device is also configured to provide interactive movement of the displayed image based on movement of the imaging device, and to permit placement of annotations on the displayed image to facilitate communication between the radiology technician and the surgeon.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: October 10, 2017
    Assignee: NuVasive, Inc.
    Inventors: Robert E. Isaacs, Samuel Morris Johnston, David Alexander Skwerer, Randall Graham Campbell
  • Patent number: 9773578
    Abstract: A method of manufacturing a multi-layer mirror comprising a multi-layer stack of pairs of alternating layers of a first material and silicon, the method comprising depositing a stack of pairs of alternating layers of the first material and layers of silicon, the stack being supported by a substrate and doping at least a first layer of the first material with a dopant material.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: September 26, 2017
    Assignee: ASML Netherlands B.V.
    Inventors: Alexey Sergeevich Kuznetsov, Arjen Boogaard, Jeroen Marcel Huijbregtse, Andrey Nikipelov, Maarten Van Kampen
  • Patent number: 9750955
    Abstract: A system for radiation therapy includes a radiation planning system. The radiation planning system includes a data processor that is adapted to receive information concerning an intended radiation treatment region of a body, receive a calculated initial energy released per unit mass for a plurality of locations within the body, compute a radiation dose at a plurality of locations within the radiation treatment region based on the calculated initial energy released per unit mass and including radiation dose contributions due to scattering from other locations within the body, and determine radiation therapy parameters for providing radiation treatment to the intended radiation treatment region based on the radiation dose computed at the plurality of locations within the radiation treatment region. Including radiation dose contributions due to scattering from other locations within the body take into account density discontinuities in the body.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: September 5, 2017
    Assignee: The Johns Hopkins University
    Inventors: Todd McNutt, Robert A. Jacques
  • Patent number: 9754696
    Abstract: In the field of resolution test charts for analysis of the resolution of X-ray tomography systems, a test chart comprises a substrate bearing X-ray absorbent zones, with widths and spacings to allow measurement of the system resolution. To avoid shadow effects when the X-ray illumination beam is divergent and when the absorbent zones have a large height/width ratio (from 2 to 5 for example), the absorbent zones in the diverse points of the pattern have a shape of which a general direction of elevation with respect to the surface of the substrate is rotated toward a point of convergence which is the same for all absorbent zones. The X-ray source is placed at the convergence point, eliminating shadow effects. The oblique elevation can be obtained by specific etching steps, or curvature of the substrate after fabrication of the absorbent patterns, or else by use of two superimposed partial test charts.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: September 5, 2017
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Pierre Bleuet, Christophe Constancias
  • Patent number: 9726477
    Abstract: Information is provided regarding a block's sectional contour in a particular plane as corresponds to a radiation-therapy beam. For a point at which block effects are to be assessed, a point is projected onto a plane of the block and a plurality of straight lines is then formed. Each line has a particular relationship with respect to the projected point (such as having each such line intersect all others at the projected point). Intersections amongst these straight lines and the contour are used to evaluate corrections to the dose at the point. These teachings will accommodate identifying line segments that are located within the contour and that are bound by the intersections with the contour. Elementary contributions as correspond to each of these line segments can be averaged to evaluate delivered dose corrections that are due to the presence of beam-limiting and beam-shaping devices in the particular treatment plan.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: August 8, 2017
    Assignee: Varian Medical Systems, Inc.
    Inventor: Evangelos Matsinos
  • Patent number: 9645100
    Abstract: An X-ray fluorescence analysis apparatus is provided with: an excitation source configured to excite an analysis target sample to emit a characteristic X-ray; an X-ray detector configured to detect the characteristic X-ray emitted from the analysis target sample; and an electromagnetic wave shield and a heat shield that are sequentially arranged from the analysis target sample toward the X-ray detector. The electromagnetic wave shield is provided with a through hole portion on which a through hole through which the characteristic X-ray passes is formed, the through hole having a size equal to or smaller than 50 ?m. The heat shield is provided with a window portion through which the characteristic X-ray is passed through.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: May 9, 2017
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Keiichi Tanaka, Akikazu Odawara
  • Patent number: 9629592
    Abstract: Disclosed herein is an X-ray photographing apparatus. The X-ray photographing apparatus uses a moving source and a tension spring in order to let a grid reciprocate for removing a scattered radiation. The moving source generates moving force moving the grid toward one side, and the tension spring applies tension force moving the grid toward the other side. According to the present invention, since the grid moves at a velocity close to a constant velocity, image quality is improved.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 25, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Chang Hwa Lee, Min Ho Son
  • Patent number: 9619296
    Abstract: Disclosed are systems, hybrid compute environments, methods and computer-readable media for dynamically provisioning nodes for a workload. In the hybrid compute environment, each node communicates with a first resource manager associated with the first operating system and a second resource manager associated with a second operating system. The method includes receiving an instruction to provision at least one node in the hybrid compute environment from the first operating system to the second operating system, after provisioning the second operating system, pooling at least one signal from the resource manager associated with the at least one node, processing at least one signal from the second resource manager associated with the at least one node and consuming resources associated with the at least one node having the second operating system provisioned thereon.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: April 11, 2017
    Assignee: III Holdings 12, LLC
    Inventor: David Brian Jackson
  • Patent number: 9538974
    Abstract: Various methods and systems are provided for estimating and compensating for table deflection in reconstructed images. In one embodiment, a method for computed tomography (CT) imaging comprises reconstructing images from data acquired during a helical CT scan where table deflection parameters are estimated and the reconstruction is adjusted based on the table deflection parameters. In this way, images may be reconstructed without artifacts caused by table deflection.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: January 10, 2017
    Assignees: General Electric Company, The University of Notre Dame du Lac
    Inventors: Guangzhi Cao, Jiang Hsieh, Jean-Baptiste Thibault, Jiahua Fan, Ken D. Sauer
  • Patent number: 9513238
    Abstract: The invention relates to a method for performing an x-ray fluorescence analysis, in which method a primary radiation (16) is directed at a specimen (12) by an x-radiation source (14) and in which method a secondary radiation (18) emitted by the specimen (12) is detected by a detector (20) and evaluated by means of an evaluating unit (21), wherein at least one filter (23) having at least one filter layer (25) forming a filter plane is brought into the beam path of the secondary radiation (18) and acts as a band-pass filter in dependence on an angle ? of the filter layer (25) to the secondary radiation (18) and an interfering wavelength of the secondary radiation (18) is coupled out by Bragg reflection, the angle ? of the filter layer (25) of the filter (23) is set by means of a setting apparatus (31) to reflect at least one interfering wavelength of the secondary radiation (18) by Bragg reflection, and the coupled-out wavelength of the secondary radiation (18) is detected by a second detector (32) and the sign
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: December 6, 2016
    Assignee: Helmut Fischer GmbH Institut für Elektronik und Messtechnik
    Inventor: Jens Kessler
  • Patent number: 9480443
    Abstract: A method is disclosed for selecting a radiation form, to change spatial distribution of the intensity and/or the spectrum of x-ray radiation of an x-ray source of an imaging system including a plurality of radiation form filters. The method includes acquiring a plurality of radiation absorption profiles of an examination object, of which image data is to be generated with the aid of the imaging system, in parallel with the patient axis from various directions; calculating an effective radiation absorption profile by averaging the recorded radiation absorption profiles; and selecting the radiation form filter on the basis of the effective radiation absorption profile of the examination object from a plurality of radiation form filters. An x-ray imaging system is further disclosed.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: November 1, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Ute Feuerlein, Christiane Koch, Rainer Raupach
  • Patent number: 9449781
    Abstract: This disclosure presents systems for x-ray illumination that have an x-ray brightness several orders of magnitude greater than existing x-ray technologies. These may therefore useful for applications such as trace element detection or for micro-focus fluorescence analysis. The higher brightness is achieved in part by using designs for x-ray targets that comprise a number of microstructures of one or more selected x-ray generating materials fabricated in close thermal contact with a substrate having high thermal conductivity. This allows for bombardment of the targets with higher electron density or higher energy electrons, which leads to greater x-ray flux. The high brightness/high flux x-ray source may then be coupled to an x-ray optical system, which can collect and focus the high flux x-rays to spots that can be as small as one micron, leading to high flux density.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: September 20, 2016
    Assignee: Sigray, Inc.
    Inventors: Wenbing Yun, Sylvia Jia Yun Lewis, Janos Kirz
  • Patent number: 9449727
    Abstract: An apparatus for detecting small field circular collimators when connected to a linear accelerator machine (LINAC). Each small field circular collimator is provided with some uniquely identifying trait depending upon its size. The adaptor of LINAC includes sensors to detect the uniquely identifying trait of the small field circular collimator. The information from the sensor about the small field circular collimator is conveyed to the LINAC to verify that the collimator is properly installed and the correct size collimator is being used.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: September 20, 2016
    Assignee: AKTINA CORP.
    Inventors: Nicholas G. Zacharopoulos, Milan Markovic
  • Patent number: 9435752
    Abstract: The present application discloses scanner systems that have a radiation generator arranged to generate radiation to irradiate an object, a detector arranged to detect the radiation after it has interacted with the object and generate a sequence of detector data sets as the object is moved relative to the generator, and processors arranged to process each of the detector data sets thereby to generate a control output.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: September 6, 2016
    Assignee: Rapiscan Systems, Inc.
    Inventors: Edward James Morton, Joseph Bendahan, Willem G. J. Langeveld
  • Patent number: 9395313
    Abstract: A CT imaging system and a method for determining a CT collimator slit profile. The method includes determining a profile of two opposite edges of the collimator slit in a longitudinal direction thereof based on the following: a vertical distance between a focus of a radiation source to the collimator slit, a vertical distance between the focus and the radiation detector, an inclination angle between adjacent detector elements, a length of each detector element, a desired width of projection on the radiation detector by the radiation rays passing through the slit whose longitudinal edge profile is to be determined, and an offset angle of a connecting line from a point on a longitudinal center line of the slit to the focus relative to a plane passing said focus and perpendicular to the slit.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: July 19, 2016
    Assignee: GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC
    Inventors: Xianjun Pan, Shutao Liu, Dong Zhang, Bin Wang
  • Patent number: 9305344
    Abstract: The present disclosure is generally directed to of method linear feature detection in a structure by providing a first digital image of the structure, creating a second corresponding digital image of the structure from the first digital image and determining a direction to shift pixels of the second corresponding digital image. A pixel shift value may be input to shift pixels of the second corresponding digital image, and pixels of the second corresponding digital image are shifted by the input pixel shift value in the determined direction. A third corresponding digital image of the structure may be calculated by subtracting the second corresponding digital image of the structure from the first digital image of the structure.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: April 5, 2016
    Assignee: The Boeing Company
    Inventors: Gary E. Georgeson, Morteza Safai, William T. Edwards, Matthew T. Grimshaw, James E. Engel, Yuan-Jye Wu
  • Patent number: 9287017
    Abstract: In X-ray differential phase-contrast imaging. In order to enhance the information acquired by phase-contrast imaging, an analyzer grating (34) is provided with an absorption structure (48). The latter includes a first plurality (50) of first areas (52) with a first X-ray attenuation, and a second plurality (54) of second areas (56) with a second X-ray attenuation. The second X-ray attenuation is smaller than the first X-ray attenuation, and the first and second areas are arranged periodically in an alternating manner. A third plurality (58) of third areas (60) is provided with a third X-ray attenuation, which lies in a range from the second X-ray attenuation to the first X-ray attenuation, wherein every second of the first or second areas is replaced by one of the third areas.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: March 15, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Thomas Koehler, Ewald Rössl
  • Patent number: 9201028
    Abstract: An X-ray backscatter imaging system uses frequency modulated X-rays to determine depth of features within a target. An X-ray source generates X-ray radiation modulated by a frequency-modulated bias current. The X-ray radiation impinges upon and is backscattered from multiple depths within the target. A scintillating material receives the backscattered X-rays and generates corresponding photons. A photodetector, having gain modulated by the frequency modulation signal from the local oscillator, receives the photons from the scintillating material and generates an analog output signal containing phase delay information indicative of the distance travelled by the X-rays backscattered from multiple depths within the target. The analog output signal is sampled by an analog-to-digital converter to create a digital output signal. A computer processor performs a discrete Fourier transform on the digital output signal to provide target depth information based on the phase delay information.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: December 1, 2015
    Assignee: Nucsafe, Inc.
    Inventor: Steven W. Pauly