Imaging Patents (Class 378/87)
  • Patent number: 10175180
    Abstract: A measurement device comprises a high permittivity dielectric resonator (10) with a low microwave loss tangent and having at least a first symmetry axis (z-i); an electrically conductive resonance chamber (100) containing and geometrically similar to the resonator (10) and having a second symmetry axis (z2) coincident with the first symmetry axis (z-i); the resonance chamber (100) having a plurality of similar ports (104) orthogonal to the first symmetry axis (z-i), each such port (104) having a microwave antenna (114), either to inject microwaves into the resonance chamber, thereby to excite an electric field in the resonator, or to receive microwaves from the resonance chamber; and a comparator circuit (200, 300, 400, 500, 600, 700, 800) connected to a first one (P1) of the plurality of ports (104) to inject microwaves into the resonance chamber and to another (P2, P3) of the plurality of ports (104) to receive microwaves from the resonance chamber; wherein the measurement device further comprises an electr
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: January 8, 2019
    Assignee: NPL Management Limited
    Inventors: Ling Hao, John Charles Gallop
  • Patent number: 10153061
    Abstract: An X-ray metal grating structure of the present invention has a grating region in which a plurality of first structural portions are periodically provided, wherein an air gap is formed between each of the plurality of first structural portions and a second structural portion as a remaining part of the grating region other than the plurality of first structural portions. Thus, the X-ray metal grating structure of the present invention is formed as a grating structure having high flatness. A production method therefor comprises a step of forming the air gap between the first structural portion and the second structural portion. Thus, the production method makes it possible to produce an X-ray metal grating structure having high flatness. The present invention further provides an X-ray metal grating unit and an X-ray imaging device each comprising the X-ray metal grating structure.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: December 11, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Mitsuru Yokoyama
  • Patent number: 10094788
    Abstract: The implementations described herein generally relate to a sensing device for use in the semiconducting industry which sense process parameters to control semiconductor processes. More specifically, the implementations relate to packaging for a surface acoustic wave (SAW) based devices or wireless or RF-responsive sensors for use in the harsh processing environments of a semiconductor processing chamber such that the neither the sensor and its components nor the chamber components interfere with or contaminate one another. The sensor packaging may include various packaging layers with or without protective coatings and a waveguide. The packaging may have a thickness chosen such that the thickness is less than the electromagnetic wavelength of a SAW sensor radio wave. The sensing devices may be disposed in cavities of the chamber, the processing volume, on chamber components, and/or on the substrate.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: October 9, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Ramesh Gopalan, Simon Yavelberg, Zubin Huang
  • Patent number: 9724063
    Abstract: A phantom material may be irradiated with varying energy x-rays to determine its phase shift properties. A determination of the difference between those phase shift properties and the phase shift properties of another material of interest can be represented and stored in terms of a polynomial function. The stored function can then be used in combination with a surrogate phantom shaped in the form of another object to obtain the phase shift properties of that other object as if it were made from the material of interest.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: August 8, 2017
    Assignee: Carestream Health, Inc.
    Inventors: Pavlo Baturin, Mark E. Shafer
  • Patent number: 9651507
    Abstract: A human body back-scattering inspection method and system are discloses. The method includes: obtaining a back-scattering scan image of a human body under inspection; distinguishing a body image from a background image in the back-scattering scan image; and calculating a feature parameter of the background image to determine whether radioactive substance is carried with the human body. With some embodiments of the present disclosure, it is possible to determine whether any radioactive substance is carried with a human body during back-scattering inspection of the human body. In further embodiments of the present disclosure, it is possible to approximately determine which part(s) of the human body carries the radioactive substance. This improves efficiency of inspection.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 16, 2017
    Assignees: NUCTECH COMPANY LIMITED, TSINGHUA UNIVERSITY
    Inventors: Zhiqiang Chen, Ziran Zhao, Yuanjing Li, Wanlong Wu, Ming Ruan, Li Zhang, Yingkang Jin, Le Tang, Xianli Ding, Chenguang Zhu
  • Patent number: 9632205
    Abstract: The present specification discloses a covert mobile inspection vehicle with a backscatter X-ray scanning system that has an X-ray source and detectors for obtaining a radiographic image of an object outside the vehicle. The systems preferably include at least one sensor for determining a distance from at least one of the detectors to points on the surface of the object being scanned, a processor for processing the obtained radiographic image by using the determined distance of the object to obtain an atomic number of each material contained in the object, and one or more sensors to obtain surveillance data from a predefined area surrounding the vehicle.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: April 25, 2017
    Assignee: Rapiscan Systems, Inc.
    Inventor: Edward James Morton
  • Patent number: 9572541
    Abstract: An equivalent phantom is used for an X-ray Talbot imaging apparatus which includes an X-ray source, a plurality of gratings and an X-ray detector. The apparatus captures at least a Moire image from which a differential phase image of an object is generated. The equivalent phantom includes a first substance having a first refractive index and a second substance having a second refractive index. A ratio of the first refractive index to the second refractive index is equal to a ratio of a refractive index of a soft tissue to a refractive index of a surrounding tissue. At least a part of a shape of one of the first and second substances is equal to a shape of a corresponding portion of the soft tissue.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: February 21, 2017
    Assignee: Konica Minolta, Inc.
    Inventor: Yoshihide Hoshino
  • Patent number: 9563817
    Abstract: An apparatus reconstructs an image using high energy-based data regarding a scene provides access to first image-capture data regarding the scene that is formed using a first image-capture modality and to second image-capture data that is formed using a second (different) image-capture modality. A control circuit executes an iterative image reconstruction process that establishes a first and a second image-representation channel, a fidelity error measure that measures inconsistency of the image as compared to first image-capture data and second image-capture data, and a prior-penalty term that scores the image based on a priori likelihood or desirability using, at least in part, for each of a plurality of pixels, a non-separable matrix-penalty of a Jacobian-matrix of the image at that pixel, such as nuclear norm.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: February 7, 2017
    Assignee: Varian Medical Systems, Inc.
    Inventor: Kevin M. Holt
  • Patent number: 9535019
    Abstract: A method for imaging a target with an x-ray scatter apparatus. Air scatter from air intervening between the x-ray scatter apparatus and a target overwhelms x-ray scatter from the target in that x-ray scatter from a position on the target is no more than 10% of the x-ray scatter due to intervening air scatter that reaches at least one point in the detector plane of the x-ray scatter apparatus. The target is illuminated with a beam of x-rays scanned across the target, and x-rays scattered by the target are detected using a detector with a centroid displaced with respect to the beam axis by at least five feet. The detector signal is then processed to generate an image of the target. The beam of x-rays may be unshielded, and/or the detector may be uncollimated.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: January 3, 2017
    Assignee: American Science and Engineering, Inc.
    Inventor: Peter J. Rothschild
  • Patent number: 9524567
    Abstract: Methods and systems for iterative computed tomography add an auxiliary variable to the reconstruction process, while retaining all variables in the original formulation, A weighting operator or filter can be applied that causes the Hessian with respect to an image of the cost function to be well-conditioned. An auxiliary sinogram variable distinct from both a set of actual image measurements and from the set of projections computed based on an image can be applied to iteratively update during the statistical iterative image reconstruction, with applied conditions that causes the Hessian with respect to an image of the cost function to be well-conditioned.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: December 20, 2016
    Assignee: InstaRecon
    Inventors: Jeffrey Brokish, Yoram Bresler, Luke Pfister
  • Patent number: 9477000
    Abstract: A system and method are provided for determining shallow water multiples when seismically exploring a geographical area of interest under a body of water. The system and method estimate a multi-channel prediction operator F using a model of water layer related multiples with respect to received and stored seismic data, estimate a travel time of the transmitted seismic wavelets from the one or more sources to each of the plurality of receivers, and then generate water layer primary reflections models using the estimated travel time and Green's function. The system and method then merge the generated water layer primary reflections models with the multi-channel prediction operator F to create a hybrid multi-channel prediction operator FH, and convolute the hybrid multi-channel prediction operator FH with the stored received data to determine a final multiples model.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: October 25, 2016
    Assignee: CGG SERVICES SA
    Inventors: Kunlun Yang, Barry Hung
  • Patent number: 9372334
    Abstract: A microscope for fluorescence imaging microscopy, in particular for wide-field fluorescence microscopy, including a pulsed light source (1) and an imaging detector (11), is characterized in that means for gating are provided, and in that the gating causes the light source (1) and the detector (11) to be synchronized in order to suppress reflected/scattered light such that suitable fluorescence components are used for evaluation and unsuitable components are rejected. Furthermore, a method is used to perform fluorescence imaging microscopy using the microscope according to the present invention.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: June 21, 2016
    Assignee: Leica Microsystems CMS GmbH
    Inventor: Volker Seyfried
  • Patent number: 9366642
    Abstract: A human body back-scattering inspection system is disclosed. The system comprises a flying-spot forming unit configured to output beams of X-rays, a plurality of discrete detectors which are arranged vertically along a human body to be inspected, and a controlling unit coupled to the flying-spot forming unit and the plurality of detectors, and configured to generate a control signal to control the flying-spot forming unit and the plurality of detectors to perform a partition synchronous scan on the human body to be inspected vertically. The present disclosure utilizes the geometry property of the human body back-scattering inspection system, and proposes a multiple-point synchronous scan mechanism which largely accelerates the inspection of human body.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: June 14, 2016
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Ziran Zhao, Zhiqiang Chen, Yuanjing Li, Wanlong Wu, Ming Ruan, Yinong Liu, Yingkang Jin, Le Tang, Yanjie Wen, Xiuwei Chen, Fuhua Ding, Bin Sang, Zongjun Shen
  • Patent number: 9291741
    Abstract: The present specification discloses an inspection system for detecting objects being carried by a person who is moving along a pathway. The inspection system has two detection systems configured to detect radiation scattered from the person as the person moves along the pathway and an X-ray source positioned between the detection systems. The X-ray source is configured to generate a vertical beam spot pattern and does not generate beams that move horizontally.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: March 22, 2016
    Assignee: Rapiscan Systems, Inc.
    Inventors: Stephen Gray, Ronald Hughes, Peter Ryge, Andreas F. Kotowski
  • Patent number: 9245354
    Abstract: To better handle the flat tail phenomenon commonly seen in transform coefficients such as DCT coefficients, a system and method having a model dubbed a transparent composite model (TCM) are described. Given a sequence of transform coefficients, a TCM first separates the tail of the sequence from the main body of the sequence. A first distribution such as a uniform, truncated Laplacian, or truncated geometric distribution can be used to model transform coefficients in the flat tail while at least one parametric distribution (e.g. truncated Laplacian, generalized Gaussian (GG), and geometric distributions) can be used to model data in the main body. A plurality of boundary values can be used to bound a plurality of distribution models. The plurality of boundary values and other parameters of the TCM can be estimated via maximum likelihood (ML) estimation or greedy estimation.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: January 26, 2016
    Inventor: En-hui Yang
  • Patent number: 9202295
    Abstract: Embodiments of the present invention provide a computer-based method for providing image data of a region of a target object (31), comprising the steps of estimating (706) a first intermediate object function indicating at least one characteristic of a first sub-region (501, 503) of said region of the target object, estimating (706) a second intermediate object function indicating at least one characteristic of a second sub-region (502, 504) of said region of the target object, and combining (707) the first and second intermediate object functions to form a combined object function indicating at least one characteristic of the region of the target object (31).
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: December 1, 2015
    Assignee: PHASE FOCUS LIMITED
    Inventors: Paul Roberts, Andrew Maiden
  • Patent number: 9194828
    Abstract: Handheld imaging systems and methods for using such systems to create a 3D image of a desired object using scattered radiation are described. The handheld imaging apparatus can contain a housing, a radiation source for irradiating an object with a fan beam or cone beam, and multiple detector elements for detecting backscattered radiation from the object, where each detector element has a different view of the object and collects an image of the object that is different than the other detector elements. Alternatively, the handheld imaging apparatus can contain a housing, a radiation source for irradiating an object with a pencil beam of radiation, and a detector configured to detect backscattered radiation from the object, wherein the detector and the radiation source are oriented off-axis relative to each other.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: November 24, 2015
    Assignee: Aribex, Inc.
    Inventor: D. Clark Turner
  • Patent number: 9190182
    Abstract: A radiation imaging apparatus comprising: a radiation detector; a field modulator that modulates the radiation that reaches the detector and is defined by a transmission function; a scanner system for changing the pose of at least the field modulator; and an image reconstruction section that receives a radiation reading from the radiation detector for each of a plurality of angular orientations of the field modulator, and is configured to process the received readings to derive an image representing the amount of radiation originating from each point in an image domain, wherein the transmission function of the field modulator comprises a low transmission region that attenuates radiation incident toward the detector from angular directions defined by that low transmission region, and a high transmission region that transmits to the detector radiation that is incident toward the detector from angular directions defined by that high transmission region, wherein said regions are arranged such that: for each incid
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: November 17, 2015
    Assignee: CREATE TECHNOLOGIES LIMITED
    Inventor: Matthew Paul Mellor
  • Patent number: 9171650
    Abstract: A method of aligning masks for phase imaging or phase contrast imaging in X-ray apparatus using a pixel-type X-ray detector makes use of non-idealities of all real detectors. A mask may be provided before the sample to generate beams, adjacent to the pixels of the detector or both. The method includes moving the mask into a plurality of translational position increments and identifying the increment for which the intensity has a maximum or minimum. The identified value of the increment may vary over the pixels of the detector. Alignment positions are selected in which steps in a plot of the increment over the area of the detector are minimized and/or aligned with the rows and columns of pixels.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: October 27, 2015
    Assignee: UCL BUSINESS PLC
    Inventors: Konstantin Ignatyev, Alessandro Olivo, Peter Munro, Robert Speller
  • Patent number: 9140793
    Abstract: The configuration includes a laser range finder (110), a scan mechanism (120), a distance-data acquiring unit (130), a memory (160), a human-body determining unit (140), which detects an object with possibility to correspond to a human body from acquired distance information, calculates a height and a width of the object based on installation state information stored in the memory (160), determines that the object is a human body when detection of the object continues for a first predetermined time or longer in the case where a calculated object height is a predetermined height or more, and determines that the object is a human body when detection of the object continues for a second predetermined time longer than the first predetermined time or longer in the case where the calculated object height is less than the predetermined height, and an alert-output control unit (150).
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: September 22, 2015
    Assignee: OPTEX CO., LTD.
    Inventor: Masashi Iwasawa
  • Patent number: 9128029
    Abstract: An X-ray analysis apparatus having a function for enabling a plurality of measurement methods to be implemented, the apparatus having: measurement software for implementing each of the individual measurement methods and acquiring measurement data; analysis software for performing a predetermined analysis on the measurement data and acquiring analysis data; reduced-size-image-creating means for creating a reduced-size image on the basis of each item of the measurement data and the analysis data; analysis-icon-creating means for creating an icon for denoting the analysis software; and image display means for displaying the reduced-size image and the icon on the same screen while indicating that the reduced-size image and the icon are correlated.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: September 8, 2015
    Assignee: RIGAKU CORPORATION
    Inventors: Keiichi Morikawa, Hiroki Yoshida
  • Patent number: 9036781
    Abstract: A method and apparatus for inspecting an object. A radiation generation system is configured to emit radiation. A detector system is configured to detect backscatter formed in response to the radiation encountering the object. A redirection system is positioned relative to the detector system and is configured to redirect the backscatter to the detector system.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: May 19, 2015
    Assignee: THE BOEING COMPANY
    Inventor: Morteza Safai
  • Patent number: 9031188
    Abstract: A system for the inspection of the internal structure of a target includes at least one x-ray source that emits collimated x-rays to irradiate the target. At least one detector is positioned to detect backscatter x-rays from the target. The detector may include a collimation slot that limits the field of view of the detector. The target may be a railway component and the system may inspect the internal structure of the component as it is moved along the railway by a vehicle. The system may detect a change in the density of a target based on a comparison of the detected backscatter x-rays. The use of a plurality of segmented backscatter x-ray detectors having a collimation slot may pixelate the internal image in the direction of the collimation slot.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: May 12, 2015
    Assignee: Georgetown Rail Equipment Company
    Inventors: Jeb Belcher, Charles Wayne Aaron
  • Patent number: 9031192
    Abstract: A ray emission device and an imaging system with the ray emission device are disclosed. The ray emission device comprises: a cylinder; a ray source disposed in the cylinder for emitting a ray; and a collimator disposed in the cylinder. The collimator enables the ray emitted by the ray source to form sectorial ray beams at a plurality of positions in an axial direction of the cylinder. The cylinder has a pencil beam forming part arranged over an axial length of the cylinder corresponding to the plurality of positions. The sectorial ray beams form pencil beams through the pencil beam forming part when the cylinder rotates around a rotation axis.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: May 12, 2015
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Ziran Zhao, Wanlong Wu, Yingkang Jin, Le Tang, Guangwei Ding, Chenguang Zhu
  • Patent number: 9020100
    Abstract: An apparatus and method for inspecting personnel or their effects. A first and second carriage each carries a source for producing a beam of penetrating radiation incident on a given subject. A positioner provides for relative motion of each beam vis-à-vis the subject in a motion, the vertical component of which is one-way. A detector receives radiation produced by at least one of the sources after the radiation interacts with the subject.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: April 28, 2015
    Assignee: America Science and Engineering, Inc.
    Inventors: Richard Mastronardi, Dean Fleury, Jeffrey R. Schubert, Joseph DiMare, Richard Schueller, Alexander Chalmers
  • Patent number: 9020096
    Abstract: The inspection methods and systems of the present invention are mobile, rapidly deployable, and capable of scanning a wide variety of receptacles cost-effectively and accurately on uneven surfaces. The present invention is directed toward a portable inspection system for generating an image representation of target objects using a radiation source, comprising a mobile vehicle, a detector array physically attached to a movable boom having a proximal end and a distal end. The proximal end is physically attached to the vehicle. The invention also comprises at least one source of radiation. The radiation source is fixedly attached to the distal end of the boom, wherein the image is generated by introducing the target objects in between the radiation source and the detector array, exposing the objects to radiation, and detecting radiation.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: April 28, 2015
    Assignee: Rapiscan Systems, Inc.
    Inventors: Bryan Allman, Andreas F. Kotowski
  • Publication number: 20150110249
    Abstract: Disclosed are apparatus and methods for performing small angle x-ray scattering metrology. This system includes an x-ray source for generating x-rays and illumination optics for collecting and reflecting or refracting a portion of the generated x-rays towards a particular focus point on a semiconductor sample in the form of a plurality of incident beams at a plurality of different angles of incidence (AOIs). The system further includes a sensor for collecting output x-ray beams that are scattered from the sample in response to the incident beams on the sample at the different AOIs and a controller configured for controlling operation of the x-ray source and illumination optics and receiving the output x-rays beams and generating an image from such output x-rays.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 23, 2015
    Applicant: KLA-Tencor Corporation
    Inventors: Michael S. Bakeman, Andrei V. Shchegrov, Ady Levy, Guorong V. Zhuang, John J. Hench
  • Publication number: 20150110250
    Abstract: The present specification discloses an inspection system for detecting objects being carried by a person who is moving along a pathway. The inspection system has two detection systems configured to detect radiation scattered from the person as the person moves along the pathway and an X-ray source positioned between the detection systems. The X-ray source is configured to generate a vertical beam spot pattern and does not generate beams that move horizontally.
    Type: Application
    Filed: November 3, 2014
    Publication date: April 23, 2015
    Inventors: Stephen Gray, Ronald Hughes, Peter Ryge, Andreas F. Kotowski
  • Patent number: 9014335
    Abstract: A system for analyzing a sample is provided. The system includes a beam selection device for selecting between a one-dimensional operation mode for providing a one-dimensional x-ray beam to the sample and a two-dimensional operation mode for providing a two-dimensional x-ray beam to the sample.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: April 21, 2015
    Assignee: Rigaku Innovative Technologies, Inc.
    Inventor: Licai Jiang
  • Patent number: 9001969
    Abstract: An X-ray imaging system is provided with an X-ray source (11), first and second absorption gratings (31, 32), and a flat panel detector (FPD) (30), and obtains a phase contrast image of an object H by performing imaging while moving the second absorption grating (32) in x direction relative to the first absorption grating (31). The following mathematical expression is satisfied where p1? denotes a period of a first pattern image at a position of the second absorption grating (32), and p2? denotes a substantial grating pitch of the second absorption grating (32), and DX denotes a dimension, in the x-direction, of an X-ray imaging area of each pixel of the FPD (30). Here, “n” denotes a positive integer.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: April 7, 2015
    Assignee: Fujifilm Corporation
    Inventors: Dai Murakoshi, Takuji Tada, Toshitaka Agano, Kenji Takahashi
  • Patent number: 9001967
    Abstract: Embodiments of methods and apparatus are disclosed for obtaining a phase-contrast digital radiographic imaging system and methods for same that can include an x-ray source for radiographic imaging; a beam shaping assembly including a collimator and a source grating, an x-ray grating interferometer including a phase grating, and an analyzer grating; and an x-ray detector, where a single arrangement of the beam shaping assembly, the x-ray grating interferometer and a position of the detector is configured to provide spectral information (e.g. at least two images obtained at different relative beam energies).
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 7, 2015
    Assignee: Carestream Health, Inc.
    Inventors: Pavlo Baturin, Mark E. Shafer
  • Patent number: 9001961
    Abstract: Embodiments of the disclosure generally set forth techniques for adjusting an estimate of scattered radiation of a target object. One example method includes generating a plurality of radiographic projections, selecting a first radiographic projection and a second radiographic projection of the target object from the plurality of radiographic projections, forming first estimates of scattered radiation in the first and second radiographic projections, applying the first estimates of scattered radiation to the first and second radiographic projections to generate a modified first radiographic projection and a modified second radiographic projection, comparing the modified first and second radiographic projections to generate correction modules, and applying one of the correction modules to a first subset of the plurality of radiographic projections and another of the correction modules to a second subset of the plurality of radiographic projections.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: April 7, 2015
    Assignee: Varian Medical Systems, Inc.
    Inventors: Josh Star-Lack, Mingshan Sun
  • Patent number: 9001960
    Abstract: A method for reconstructing an image of an object includes acquiring a set of measured projection data, reconstructing the measured projection data using a first algorithm to generate a first reconstructed image dataset, reconstructing the measured projection data using a second algorithm to generate a second reconstructed image dataset, the second algorithm being utilized to improve the temporal resolution of the second reconstructed image dataset, and generating a final image dataset using both the first and second image datasets.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: April 7, 2015
    Assignee: General Electric Company
    Inventors: Brian Edward Nett, Bruno De Man, Jiang Hsieh, Jed Douglas Pack, Zhou Yu, Guangzhi Cao
  • Patent number: 8995619
    Abstract: The present specification discloses an inspection system for detecting objects being carried by a person who is moving along a pathway. The inspection system has two detection systems configured to detect radiation scattered from the person as the person moves along the pathway and an X-ray source positioned between the detection systems. The X-ray source is configured to generate a vertical beam spot pattern and does not generate beams that move horizontally.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: March 31, 2015
    Assignee: Rapiscan Systems, Inc.
    Inventors: Stephen Gray, Ronald Hughes, Peter Ryge, Andreas F. Kotowski
  • Publication number: 20150085983
    Abstract: An x-ray diffraction imaging (XDI) system having a system axis includes at least one x-ray source configured to generate x-rays directed toward an object that includes at least one substance. The at least one x-ray source is further configured to irradiate at least one voxel defined within the object with x-rays arriving from a plurality of directions, each direction defined by an angle of incidence with respect to the system axis. The system also includes at least one detector configured to detect scattered x-rays after the x-rays have passed through the object. The system further includes at least one processor coupled to the at least one detector. The processor is programmed to generate a plurality of XDI profiles of the object voxel. Each XDI profile is a function of an associated angle of incidence.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Applicant: MORPHO DETECTION, INC.
    Inventors: Geoffrey Harding, Helmut Rudolf Otto Strecker
  • Patent number: 8989353
    Abstract: A conductive substrate (18) and an etching substrate (20) are bonded to each other. An etch mask (25) is formed on the etching substrate (20) using a photolithography technique. On the etching substrate (20), grooves (20a) and X-ray transmitting sections (14b) are formed by dry etching using Bosch process. The grooves (20a) are filled with Au (27) by an electroplating method using the conductive substrate (18) as an electrode. Thus, X-ray absorbing sections (14a) are formed.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: March 24, 2015
    Assignee: Fujifilm Corporation
    Inventor: Yasuhisa Kaneko
  • Patent number: 8989347
    Abstract: A phase retrieval method for differential phase contrast imaging includes receiving data corresponding to a differential phase image generated from a measured signal. The measured signal corresponds to an X-ray signal detected by a detector after passing through a subject located with a grating arrangement between an X-ray source and the detector. The method further includes generating a phase image corresponding to the integration of the differential phase image. Generating the phase image includes performing an iterative total variation regularized integration in the Fourier domain.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: March 24, 2015
    Assignee: General Electric Company
    Inventors: Jonathan Immanuel Sperl, Dirk Wim Jos Beque
  • Publication number: 20150078519
    Abstract: This invention provides a scanning system for scanning an object in a scanning zone. The scanning system includes both a radiation source arranged to irradiate the object with radiation having a peak energy of at least 900 keV and a scatter detector arranged to detect radiation scattered from the object wherein the radiation source is arranged to irradiate the object over a plurality of regions to be scanned within a single irradiation event. The scatter detector includes a plurality of detection elements, each detection element being arranged to detect scattered radiation from a predefined part of the scanning zone and a signal processor arranged to calculate scatter intensity across the plurality of detector elements.
    Type: Application
    Filed: August 7, 2014
    Publication date: March 19, 2015
    Inventor: Edward James Morton
  • Patent number: 8983034
    Abstract: A technique for use in security screening and detection contexts employs an X-ray explosive imager that acquires images from backscattered RF modulated X-ray signals on which a time series analysis is performed to detect image change across the time series of images that represent pixels changing at the rate of the difference frequency of the RF frequency and the a priori NQR signature frequencies.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: March 17, 2015
    Assignee: Lockheed Martin Corporation
    Inventor: James R. Wood
  • Patent number: 8983033
    Abstract: The present invention discloses a scanning device of back-scatter imaging with a radiation beam, comprising: a radiation source; a fixed shield plate and a rotatable shield body disposed between the radiation source and a object to be scanned respectively, wherein the fixed shield plate is stationary with respect to the radiation source and the rotatable shield body is rotatable with respect to the fixed shield plate. The fixed shield plate is provided with a ray passing-through region thereon, which allows for a radiation beam from the radiation source to pass through the fixed shield plate, a ray incidence region and a ray emergence region are arranged on the rotatable shield body respectively, during the rotatable scanning of the rotatable shield body, the ray passing-through region of the fixed shield plate continuously intersects with the ray incidence region and the ray emergence region of the rotatable shield body to generate collimated holes for scanning.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: March 17, 2015
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Zhiqiang Chen, Yuanjing Li, Ziran Zhao, Yinong Liu, Wanlong Wu, Li Zhang, Chao Tu, Le Tang, Yingkang Jin, Shuo Cao, Guangwei Ding
  • Patent number: 8976928
    Abstract: This invention has one object to provide radiographic apparatus with a compensating filter that allows simple and accurate estimation of direct radiation to acquire a radioscopic image or a sectional image of excellent contrast. This invention includes a direct-ray attenuation-rate acquiring section for acquiring a direct-ray attenuation rate from a dose of direct radiation entering into a subject and a dose of direct radiation emitted from the subject. In this invention, a direct-ray attenuation rate is acquired on an assumption that a primary indirect-ray attenuation rate is equal to the direct-ray attenuation rate, the primary indirect-ray attenuation rate being a rate of decreasing a primary indirect-ray generated with the compensating filter that transmits the subject. Such configuration may achieve provision of X-ray apparatus that allows more simple acquisition of a fluoroscopic X-ray image or a sectional image without performing complicated calculations conventionally.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: March 10, 2015
    Assignee: Shimadzu Corporation
    Inventor: Wataru Takahashi
  • Patent number: 8917927
    Abstract: A portable backscatter advanced imaging technology scanner with automated threat or target recognition including: a floor assembly having a cantilever drive assembly for rotating the floor assembly, the floor assembly being able to be partitioned into multiple parts for reassembly; at least one x-ray tube oriented towards selected sides of a test subject; a detector assembly oriented on the circumference of the floor assembly, the detector assembly being able to partitioned into multiple parts for reassembly; a storage unit to store images from detected scattered photons on the detector assembly; and a processing unit to detect, identify and classify concealed objects on the test subject.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: December 23, 2014
    Assignee: Telesecurity Sciences, Inc.
    Inventors: Samuel M. Song, Brian Kauke, Douglas P. Boyd
  • Patent number: 8899831
    Abstract: A radiographic apparatus includes an image acquisition controller for controlling operation of more than one electronic cassette. For signal communication between the image acquisition controller and the electronic cassettes, each electronic cassette may be connected to a communication cable. These communication cables are connected to a switching hub that intermediates communication between the electronic cassettes and the image acquisition controller. The radiographic apparatus includes multiple power supplies corresponding in number to the electronic cassettes. Each electronic cassette may be connected to one power supply through a power cable separately from the communication cable.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: December 2, 2014
    Assignee: Fujifilm Corporation
    Inventors: Yutaka Yoshida, Yusuke Kitagawa, Katsumi Shimada, Noriaki Ida
  • Patent number: 8903046
    Abstract: The present specification discloses a covert mobile inspection vehicle with a backscatter X-ray scanning system that has an X-ray source and detectors for obtaining a radiographic image of an object outside the vehicle. The systems preferably include at least one sensor for determining a distance from at least one of the detectors to points on the surface of the object being scanned, a processor for processing the obtained radiographic image by using the determined distance of the object to obtain an atomic number of each material contained in the object, and one or more sensors to obtain surveillance data from a predefined area surrounding the vehicle.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: December 2, 2014
    Assignee: Rapiscan Systems, Inc.
    Inventor: Edward James Morton
  • Patent number: 8879688
    Abstract: A method and apparatus for inspecting an object using a backscatter inspection system. In one illustrative embodiment, an apparatus comprises a radiation source, a collimator, and a detector system. The radiation source is configured to emit radiation. The collimator is configured to form a beam using a portion of the radiation emitted by the radiation source. The beam is directed towards a surface of an object. The detector system is configured to detect backscatter formed in response to the beam encountering the object. A shape of the detector system is configured to be changed into a selected shape.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: November 4, 2014
    Assignee: The Boeing Company
    Inventor: Morteza Safai
  • Patent number: 8873711
    Abstract: A method and system for visualizing the effects of corrosion are provided. In the context of a method, a workpiece is interrogated with radiation, such as by interrogating the workpiece with x-ray radiation. By relying upon a radiographic technique, the workpiece may be hidden and may be interrogated without disassembly. The method generates a backscatter image of the workpiece based upon radiation backscattered from the workpiece. The method also compares one or more regions of the backscatter image of the workpiece with respect to backscatter images of different metal loss indicators. Each metal loss indicator is representative of a different amount of metal loss. As a result of the comparison, the method estimates the metal loss attributable to corrosion of the workpiece.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: October 28, 2014
    Assignee: The Boeing Company
    Inventors: Roger W. Engelbart, Taisia V. Tsukruk
  • Patent number: 8873703
    Abstract: A CT scanner with scatter correction device and a method for scatter correction are provided. The method comprises positioning shields for shielding some of the CT detector elements from direct X ray radiation, while allowing scattered radiation to arrive at said shielded elements; measuring scatter signals from said shielded elements, indicative of scattered radiation intensity; and correcting for scatter by subtracting scatter intensity values estimated from said measured scatter signals from signals measured by unshielded detector elements.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: October 28, 2014
    Assignee: Arineta Ltd.
    Inventors: David Ruimi, Olga Shapiro, Ehud Dafni
  • Publication number: 20140301535
    Abstract: A system for imaging a gamma source includes a pixelated Compton scattering layer, for Compton scattering of gamma photons emitted by the gamma source, and a non-pixelated full-energy detector for detecting at least a portion of Compton scattered gamma photons geometrically encoded by a coded aperture positioned between the pixelated Compton scattering layer and the full-energy detector at a distance from the pixelated Compton scattering layer. A method for imaging a gamma source includes (a) detecting coincidence events, each including Compton scattering in a pixelated Compton scattering layer, and transmission to a non-pixelated full-energy detector of a Compton scattered gamma photon transmitted through a coded aperture located at a distance from the pixelated Compton scattering layer, and (b) determining an image of the gamma source from the detection of the coincidence events.
    Type: Application
    Filed: October 25, 2013
    Publication date: October 9, 2014
    Applicant: The Arizona Board of Regents on behalf of the University of Arizona
    Inventors: John G. Williams, Aaron M. Farber
  • Patent number: 8855268
    Abstract: A method and apparatus for operating an inspection system is provided. A housing with an x-ray system located inside of the housing is moved in an environment with water relative to a location on a surface of an object to be inspected. The location on the surface of the object is submerged in the water in the environment. A number of components for the x-ray system are cooled using the water around the housing.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: October 7, 2014
    Assignee: The Boeing Company
    Inventors: Morteza Safai, Dallas Steven Scholes
  • Patent number: 8848271
    Abstract: Described are a method and apparatus for high-speed phase shifting of an optical beam. A transparent plate having regions of different optical thickness is illuminated by an optical beam along a path of incidence that extends through the regions. The transparent plate can be moved or the optical beam can be steered to generate the path of incidence. The optical beam exiting the transparent plate has an instantaneous phase value according to the region in which the optical beam is incident. Advantageously, the phase values are repeatable and stable regardless of the location of incidence of the optical beam within the respective regions, and phase changes at high modulation rates are possible. The method and apparatus can be used to modulate a phase difference of a pair of coherent optical beams such as in an interferometric fringe projection system.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: September 30, 2014
    Assignee: Dimensional Photonics, Inc.
    Inventors: Robert F. Dillon, Neil H. K. Judell, Timothy I. Fillion, Gurpreet Singh, Nathan E. Wallace