Plural Or Composite Luminophor Patents (Class 250/367)
  • Patent number: 10301542
    Abstract: A scintillator includes a support substrate, an emission layer formed on the substrate, made of ZnO with impurities added to have an electron concentration of 2×1019 cm?3 or more and 2×1020 cm?3 or less, and for generating scintillation light in response to incidence of radiation, a protective layer formed on the emission layer and made of a material having a hand gap wider than that of ZnO, and a metal layer formed on the protective layer. The support substrate is made of a material transmitting the scintillation light generated in the emission layer. Further, the metal layer functions as a reflection layer for reflecting the scintillation light from the emission layer.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: May 28, 2019
    Assignees: NATIONAL UNIVERSITY CORPORATION SHIMANE UNIVERSITY, HAMAMATSU PHOTONICS K.K.
    Inventors: Yasuhisa Fujita, Minoru Kondo
  • Patent number: 10295678
    Abstract: A X-ray detector having enhanced X-ray sensitivity, which enables dual energy imaging having high diagnostic performance. This X-ray detector includes: scintillator elements which are partitioned by light blocking walls and which convert low-energy X-rays to light; and scintillator elements which are partitioned by light blocking walls and which convert high-energy X-rays to light. When seen from the direction of incidence of the X-rays, the positional pattern of the light blocking walls and that of the light blocking walls are configured so as not to be in alignment with each other. Accordingly, the X-rays incident on the X-ray detector are converted to light by at least either one of the scintillator elements and are finally outputted as X-ray detection signals.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: May 21, 2019
    Assignee: Shimadzu Corporation
    Inventors: Koichi Tanabe, Shingo Furui, Toshinori Yoshimuta, Kenji Kimura, Akihiro Nishimura, Taro Shirai, Takahiro Doki, Satoshi Sano, Akira Horiba, Toshiyuki Sato
  • Patent number: 10278658
    Abstract: A radiation residue scanning device includes a plurality of CZT detectors, a plurality of data processing units, a plurality of window acquisition circuits, a plurality of counting units, and a processor; the plurality of CZT detectors connected in one-to-one correspondence to the plurality of data processing units; the plurality of data processing units are connected in one-to-one correspondence to the plurality of window acquisition circuits; and the plurality of window acquisition circuits are connected in one-to-one correspondence to the counting units The window acquisition circuit includes a plurality of acquisition modules, and the respective acquisition modules are connected in parallel; the counting unit includes a plurality of counting subunits, the counting subunits are connected in one-to-one correspondence to the acquisition window modules, and the processor is connected to the plurality of counting units.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: May 7, 2019
    Assignee: Beijing Explore Times Technology Co., Ltd.
    Inventor: Gaofeng Li
  • Patent number: 10267926
    Abstract: Provided is a radiation detector 1 which is high in radiation detection sensitivity and is capable of preventing a loss of fluorescence by integrating scintillator crystals C and reflection plates rx and ry without using a permeable material. According to the present invention, the adhesive sheets Sa and Sb are adhered to the ends of scintillator crystals C arranged in a matrix in the height direction. The scintillator crystals C are integrated by the adhesive sheets Sa and Sb. According to the present invention, there is no need to form a scintillator 2 by securing the scintillator crystals C and the reflection plates ry by an adhesive. Therefore, an adhesive before curing does not enter gaps between the scintillator crystal C and the reflection plate ry, and therefore the gap forms an air layer.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: April 23, 2019
    Assignee: Shimadzu Corporation
    Inventors: Hiromichi Tonami, Tomoaki Tsuda
  • Patent number: 10261201
    Abstract: A method for determining depth-of-interaction correction in a PET system. The method includes modifying crystal and readout configuration to improve depth-dependent arrival profile of scintillation photons, creating a photon dispersion model within a scintillator crystal, measuring photon arrival profile of individual gamma ray event, deriving an estimated depth-of-interaction, and deriving a gamma ray event time based on a time stamp corrected with the estimated depth-of-interaction. The method further includes modeling dispersion at different depths of interaction within the scintillator crystal, providing a reflector layer to delay back-reflected photons, providing two respective readouts for the same gamma ray event from two respective pixels optically coupled by a backside reflector or modified crystal configuration, calculating a time difference of the photon arrival at the two pixels, and estimating the depth-of-interaction by applying a statistical weighting.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: April 16, 2019
    Assignee: General Electric Company
    Inventors: Geng Fu, Floribertus P M Heukensfeldt Jansen, Jianjun Guo, Sergei Ivanovich Dolinsky
  • Patent number: 10261199
    Abstract: A module (1) for a detector (14) of ionizing radiation comprising at least two detection segments (2) for detecting ionizing radiation, attached to a row carrier (3) allowing for the assembly of detectors (14) with an unlimitedly large detection surface for continuous imaging of ionizing radiation. The construction of the module (1), including a means (10) for power supply stabilization for each detection segment (2), an interconnection of electrical conductors (8), formed by printed circuit boards (9, 13) led vertically downwards perpendicular to the detector surface along the row carrier (3), and a parallel connection to the connectors (11) of the read-out electronics, increases the reliability and speed of the operation of the detector (14). Between the individual parts of the module (1) there are formed thermal bridges to stabilize the temperature and to increase the reliability of the detector (14) assemblies from the modules (1).
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: April 16, 2019
    Assignee: ADVACAM S.R.O.
    Inventors: Jan Jakúbek, Martin Jakúbek, Pavel Soukup
  • Patent number: 10254421
    Abstract: A detector array for a radiation system includes a radiation detection sub-assembly, a routing sub-assembly, and an electronics sub-assembly. The routing sub-assembly is disposed between the radiation detection sub-assembly and the electronics sub-assembly and includes one or more layers of shielding material. For example, the routing sub-assembly may include a printed circuit board having embedded therein a shielding material configured to shield the electronics sub-assembly from at least some radiation. In some embodiments, the shielding material defines at least one opening through which a conductive element(s) passes to deliver signals between the radiation detection sub-assembly and the electronics sub-assembly.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: April 9, 2019
    Assignee: Analogic Corporation
    Inventors: Randy Luhta, Lane Marsden, Ruvin Deych, Jeffrey Greenwald, Martin Choquette, Christopher Tibbetts
  • Patent number: 10208587
    Abstract: A detector assembly includes scintillators configured to generate a light signal in response to an impinging backscatter signal, where the scintillators are arranged in a first pattern, a plurality of first detectors, where each first detector is coupled to a scintillator and configured to receive a first portion of a light signal from that scintillator, and where the first detectors are arranged in a second pattern aligned with the first pattern, a plurality of second detectors, where each second detector is disposed adjacent a scintillator and configured to receive a second portion of the light signal from that scintillator, and where the plurality of second detectors is arranged in a third pattern, and a scintillator collimator including a plurality of openings and configured to selectively receive the backscatter signal, where the detector assembly is configured to provide depth resolution, azimuthal resolution, a defect type, a defect size, or combinations thereof.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: February 19, 2019
    Assignee: General Electric Company
    Inventors: Ansas Matthias Kasten, John Scott Price, Juan Pablo Cilia, Chengbao Wang, William Robert Ross, Brian David Yanoff, Stanislav Ivanovich Soloviev, Sudeep Mandal
  • Patent number: 10191161
    Abstract: A handheld device for the location and identification of a radiation source, including: a radiation transparent housing; a radiation locator device disposed within the radiation transparent housing operable for determining the location of the radiation source, wherein the radiation locator device includes a plurality of gamma detection crystals arranged in a geometric pattern and separated by a gamma shielding material, a plurality of detectors coupled to the plurality of gamma detection crystals, and a processor module coupled to the plurality of detectors; one or more of a neutron detection crystal and a gamma spectroscopy crystal disposed within the radiation transparent housing adjacent to the radiation locator device; and one or more detectors coupled to the one or more of the neutron detection crystal and the gamma spectroscopy crystal and the processor module; wherein the one or more of the neutron detection crystal and the gamma spectroscopy crystal, the one or more detectors, and the processor module
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: January 29, 2019
    Assignees: Consolidated Nuclear Security, LLC, Jozef Stefan Institute, AlSense d.o.o
    Inventors: Matjaz Vencelj, Toni Petrovic, Andrej Kosicek, Ashley C. Stowe, Jonathan S. Morrell
  • Patent number: 10185040
    Abstract: A detector apparatus includes a scattered radiation grid; a scintillator unit for converting X-rays into a light quantity; an evaluation unit for converting the light quantity into electric signals; and a module-receiving appliance. The scintillator unit and the scattered radiation grid are mechanically connected to the module-receiving appliance via a first connection and the evaluation unit is mechanically connected to the module-receiving appliance via a second connection, independent of the first connection. The evaluation unit, the scintillator unit and the scattered radiation grid are aligned with respect to one another such that light quantity, when emitted from sub-regions of the scintillator unit, is registered by sub-regions of the evaluation unit.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: January 22, 2019
    Assignee: Siemens Healthcare GmbH
    Inventor: Stefan Wirth
  • Patent number: 10126255
    Abstract: A detection pixel includes a material that is chosen so that its (averaged) atomic number density leads to the Compton process being the dominant scattering mechanism in response to incident photons, leading to production of Compton electrons with sufficient number and kinetic energy to produce an electric or magnetic response in the material. The incident photon and Compton electrons each have a characteristic travel distance in the material, and the detection pixel has at least one dimension that is selected according to a range defined by these characteristic travel distances. The detection pixels may be arranged in an array for imaging.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 13, 2018
    Assignee: Elwha LLC
    Inventors: Rachel Cannara, Fred Sharifi, Alex Smolyanitsky
  • Patent number: 10107920
    Abstract: A sensor board for a detector module is disclosed. It includes, in a stack construction, at least one reader unit and a sensor layer arranged spaced from the reader unit in the direction of the stack. A gap formed by the spacing between the sensor layer and the reader unit is filled with a cured filling material such that at least one edge region of the sensor layer is free of the filling material. Furthermore, a method is disclosed for manufacturing a corresponding sensor board, and a detector module is disclosed for an X-ray detector having a number of sensor boards which are arranged to be mutually adjacent on a module carrier.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: October 23, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Ludwig Danzer, Harald Geyer, Miguel Labayen De Inza, Jan Wrege
  • Patent number: 10088581
    Abstract: A method for determining parameters of reaction of a gamma quantum within a scintillation detector of a PET scanner, wherein the signal measured by the scintillator is transformed in at least one photomultiplier into an electric measured signal.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: October 2, 2018
    Assignee: UNIWERSYTET JAGIELLONSKI
    Inventor: Pawel Moskal
  • Patent number: 10061035
    Abstract: A radiation detector has a photoelectric conversion element array having a light receiving unit and a plurality of bonding pads; a scintillator layer stacked on the photoelectric conversion element array; a resin frame formed on the photoelectric conversion element array so as to pass between the scintillator layer and the bonding pads away from the scintillator layer and the bonding pads and so as to surround the scintillator layer; and a protection film covering the scintillator layer and having an outer edge located on the resin frame; a first distance between an inner edge of the resin frame and an outer edge of the scintillator layer is shorter than a second distance between an outer edge of the resin frame and an outer edge of the photoelectric conversion element array; the outer edge and a groove are processed with a laser beam.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: August 28, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventor: Syouji Kurebayashi
  • Patent number: 10036790
    Abstract: APD-based PET modules are provided for use in combined PET/MR imaging. Each module includes a number of independent, optically isolated detectors. Each detector includes an array of scintillator (e.g. LSO) crystals read out by an array of APDs. The modules are positioned in the tunnel of a MR scanner. Simultaneous, artifact-free images can be acquired with the APD-based PET and MR system resulting in a high-resolution and cost-effective integrated PET/MR system.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: July 31, 2018
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Matthias J. Schmand, Ronald Grazioso, Ronald Nutt, Robert E. Nutt, Nan Zhang, James L. Corbeil, Ralf Ladebeck, Marcus Vester, Günter Schnur, Wolfgang Renz, Hubertus Fischer, Bernd J. Pichler
  • Patent number: 10024985
    Abstract: The invention is a gamma ray detector that locates a source, both horizontally and vertically. The detector comprises a tubular shield surrounded by scintillator panels. Gammas incident from one side can fully strike the scintillator facing the source, but are blocked from reaching the scintillators on the opposite side of the shield. The scintillator counting rates thus indicate the lateral direction of the source. By iteratively rotating toward the highest-counting scintillator, the detector converges to the source. An additional, central detector can be mounted within the tubular shield. When analyzed with the outer scintillators, the central detector determines the overall angular separation between the source and the detector axis, thereby locating the source in two dimensions automatically. The invention enables rapid detection and precise localization of clandestine nuclear and radiological weapons, despite shielding and clutter obfuscation, while quickly passing clean loads.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: July 17, 2018
    Inventor: David Edward Newman
  • Patent number: 10024808
    Abstract: There is described a method and apparatus for collecting Tomographic inspection data of objects using Compton scatter radiation. The apparatus is of size and weight for portable use within industrial facilities and may be used for assessing integrity of infrastructures in terms of material density, missing materials, thickness of materials, and identification of foreign materials.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: July 17, 2018
    Assignee: INVERSA SYSTEMS LTD.
    Inventors: Paul Arsenault, Shawn Durette, Marc Cabot
  • Patent number: 10024983
    Abstract: Exemplary embodiments of several new metal-loaded plastic scintillators are reported herein, comprising sterically and electronically isolated organotin additive complexes. Distance-dependent quenching relationships have been used as design criteria for the selection and synthesis of these organometallic additives, resulting in increased light yields and improved gamma-ray energy resolution values relative to previously reported PS/PVT examples. Fast scintillation decay properties have also been characterized in the prepared scintillators, rivaling the kinetics of stilbene-doped bibenzyl and BC-422Q-1% while providing higher light yields than these reference materials.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: July 17, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Patrick L. Feng, Joseph Gabriel Cordaro, Wondwosen Mengesha, Nicolas Richard Myllenbeck
  • Patent number: 10007005
    Abstract: A method of manufacturing a radiation detector according to an embodiment includes: forming a plurality of scintillator array columns, each of the scintillator array columns being formed by preparing a scintillator member that a thickness being smaller than a length and a width, the scintillator member having a first face, a second face, a third face, and a fourth face, and being cut from the third face along the second direction to form at least a groove that penetrates from the first face to the second face but does not reach the fourth face to have an uncut portion near the fourth face; stacking the scintillator array columns in the first direction with a space between each of adjacent two scintillator array columns, and filling a spacer material into the space; inserting a reflector into each space and each groove; and cutting the uncut portion.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: June 26, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuharu Hosono, Kazunori Miyazaki, Go Kawata, Mitsuyoshi Kobayashi, Rei Hasegawa
  • Patent number: 9954017
    Abstract: A radiation image-pickup device includes: a plurality of pixels configured to generate signal charge based on radiation; a first substrate including a transistor configured to read out the signal charge; a second substrate disposed to face the first substrate; a conversion layer provided between the first substrate and the second substrate, the conversion layer being provided for each of the pixels, and being configured to convert the radiation to other wavelength or an electric signal; a partition provided between the first substrate and the second substrate, to partition the conversion layer for each of the pixels; and a radiation shielding layer provided to face the partition.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: April 24, 2018
    Assignee: SONY CORPORATION
    Inventor: Takashi Fujimura
  • Patent number: 9953463
    Abstract: A method and a system for preparing a radiation image of a target are provided. The radiation imaging method includes the steps of collecting radiation emission data from a target, classifying the data into at least one energy range, separating the data in each energy range into N independent radiation distributions, processing the data in each of the N independent radiation distributions to estimate its true distribution; and reconstructing a radiation distribution image of the target using the processed data. The system includes at least one radiation detector module and at least one computerized component configured to perform the steps of the method.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: April 24, 2018
    Assignee: NUCARE MEDICAL SYSTEMS, INC.
    Inventor: Jinhun Joung
  • Patent number: 9897704
    Abstract: The invention relates to a scintillator for detecting neutrons and/or gamma photons, characterized in that it comprises a structure consisting of two undoped plastic materials for detecting neutrons and which contain different fluorescent complexes, a first plastic material containing at least one fluorescent complex able to produce a fluorescence light having a first relaxation time and the second plastic material containing at least one fluorescent complex able to produce a fluorescence light having a second relaxation time higher than the first relaxation time.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: February 20, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Vladimir Kondrasovs, Romain Coulon, Stéphane Normand, Karim Boudergui
  • Patent number: 9899113
    Abstract: A method for producing a scintillator dual array comprising the steps of bonding first and second scintillator bar arrays having different sensitivity distributions of X-ray energy detection and pluralities of parallel grooves with equal gaps, via an intermediate resin layer, such that both scintillator bars are aligned in a lamination direction, cutting the integrally bonded bar array in a direction crossing the scintillator bars, and coating one cut surface of each bonded bar array piece with a resin.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: February 20, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Hideo Nitta, Akira Shigekawa, Satoshi Shiota, Hiroyuki Nagatomo
  • Patent number: 9893226
    Abstract: Systems and methods for the conversion of energy of high-energy photons into electricity which utilize a series of materials with differing atomic charges to take advantage of the emission of a large multiplicity of electrons by a single high-energy photon via a cascade of Auger electron emissions. In one embodiment, a high-energy photon converter preferably includes a linearly layered nanometric-scaled wafer made up of layers of a first material sandwiched between layers of a second material having an atomic charge number differing from the atomic charge number of the first material. In other embodiments, the nanometric-scaled layers are configured in a tubular or shell-like configuration and/or include layers of a third insulator material.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: February 13, 2018
    Assignee: TAE TECHNOLOGIES, INC.
    Inventors: Michl W. Binderbauer, Toshiki Tajima
  • Patent number: 9869775
    Abstract: A method for processing a ceramic scintillator array, characterized in that, comprising the following steps: (a) forming, in a first direction, a predetermined number of straight first-direction through-cuts which are parallel to each other and spaced from each other on a scintillator substrate by using laser; (b) adequately filling the first-direction through-cuts with an adhesive and solidifying the adhesive; (c) forming, in a second direction. a predetermined number of second direction through-cuts which are parallel to each other at a predetermined interval on the scintillator substrate by using laser, wherein the second direction is perpendicular to the first direction; and (d) adequately filling the second direction through-cuts with the adhesive and solidifying the adhesive bond.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: January 16, 2018
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Yanchun Wang, Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Jianping Chang, Wenjian Zhang, Shuqing Zhao, Xiang Zou, Yongqiang Wang
  • Patent number: 9864073
    Abstract: A scintillator crystal array includes crystals and a clear film adhesive (CFA) layer. The crystals are configured to receive rays emitted by an object to be imaged and to emit light photons responsive to the rays. The crystals include a first crystal and a second crystal that are spaced apart from one another by a gap. The CFA layer is disposed in the gap between the first and second crystals. The CFA layer is configured to at least partially optically couple the first and second crystals.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 9, 2018
    Assignee: General Electric Company
    Inventor: Chang Lyong Kim
  • Patent number: 9844354
    Abstract: An apparatus and a method for detecting clinically-relevant features of the gastrointestinal (GI) tract of a subject are disclosed. The apparatus includes a capsule to be swallowed by a subject and passing through the GI tract of the subject, a capsule housing, a radiation source emitting radiation, a rotatable collimator configured to rotate with respect to the housing and to collimate the radiation emitted by the radiation source, and a radiation detector configured to detect particles, such as photons, gamma radiation, beta radiation and electrons photons generated responsive to the emitted radiation. The apparatus also includes a control unit configured to analyze data regarding the photons. Movement of the capsule in the GI tract can be detected from a comparison between at least two images acquired with the apparatus. The radiation source, radiation detector and control unit may advantageously be integrated inside a single housing.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: December 19, 2017
    Assignee: CHECK-CAP LTD.
    Inventors: Yoav Kimchy, Yitzak Klein, Gideon Baum, Rafi Sommer
  • Patent number: 9823366
    Abstract: Among other things, one or more systems and/or techniques for calibrating a direct conversion detector array are provided. An electrical charge is generated on an interface of a photoconductor (e.g., amorphous selenium) of the detector array when there is a change in voltage that is applied to the photoconductor. Such a change in voltage may occur because the voltage that is supplied to the photoconductor by a power supply is changed. The changed voltage causes an electrical charge to be produced, or causes a change in the net charge density at an interface of the photoconductor, that is substantially similar to the electrical charge that may be produced when radiation impinges the detector array. In this way, calibrations of the detector array (e.g., the generation of a uniformity map, defect table, etc.) may be performed without the emission of radiation and onsite or outside of a factory setting.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: November 21, 2017
    Assignee: ANALOGIC CANADA CORP
    Inventors: Marc Hansroul, Philippe Gauthier, Luc Laperriere
  • Patent number: 9823383
    Abstract: The present specification describes a scanning/inspection system configured as a dual-view system using dual-energy sensitive stacked detectors that are partially populated with multi-energy discriminating detectors for overall enhanced energy resolution and therefore improved discrimination of materials through better estimation of material physical properties such as density and effective atomic number.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: November 21, 2017
    Assignee: Rapiscan Systems, Inc.
    Inventor: Gerard Andrew Hanley
  • Patent number: 9804276
    Abstract: The disclosure relates to a scintillation pixel array, a radiation sensing apparatus, a scintillation apparatus, and methods of making a scintillation pixel array wherein scintillation pixels have beveled surfaces and a reflective material around the beveled surfaces. The embodiments described herein can reduce the amount of cross-talk between adjacent scintillation pixels.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: October 31, 2017
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventor: Peter R. Menge
  • Patent number: 9804274
    Abstract: A hybrid TOF-PET/CT tomograph comprising a detection chamber, gamma radiation detectors, X-ray detectors and a movable X-ray source, wherein the gamma radiation detectors (150, 250, 350, 450, 550) and the X-ray detectors (170, 270, 370, 470, 570) surround the detection chamber (102, 202, 302, 402, 502) around the whole perimeter of the detection chamber (102, 202, 302, 402, 502), and wherein the gamma radiation detectors (150, 250, 350, 450, 550) are located closer to the longitudinal axis (115, 215, 315, 415, 515) of the detection chamber (102, 202, 302, 402, 502) than the X-ray detectors (170, 270, 370, 470, 570), and wherein the gamma radiation detectors (150, 250, 350, 450, 550) comprise polymer strips (151, 251, 351, 451, 551) made of a scintillation material having a density lower than the density of the X-ray radiation detectors (171, 271, 371, 471, 571).
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: October 31, 2017
    Assignee: UNIWERSYTET JAGIELLONSKI
    Inventor: Pawel Moskal
  • Patent number: 9799699
    Abstract: An image sensor includes a plurality of photodiodes disposed proximate to a frontside of a first semiconductor layer to accumulate image charge in response to light directed into the frontside of the first semiconductor layer. A plurality of pinning wells is disposed in the first semiconductor layer. The pinning wells separate individual photodiodes included in the plurality of photodiodes. A plurality of dielectric layers is disposed proximate to a backside of the first semiconductor layer. The dielectric layers are tuned such that light having a wavelength substantially equal to a first wavelength included in the light directed into the frontside of the first semiconductor layer is reflected from the dielectric layers back to a respective one of the plurality of photodiodes disposed proximate to the frontside of the first semiconductor layer.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: October 24, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventors: Duli Mao, Vincent Venezia, Gang Chen, Dajiang Yang, Dyson H. Tai
  • Patent number: 9784851
    Abstract: An X-ray imaging apparatus is disclosed that includes an x-ray detector. The x-ray detector includes a member configured to convert incident x-ray wavelength photons into emitted visible wavelength photons, a position for a material under test, an x-ray source, and a structure configured to perturb an x-ray energy spectrum, each lying on a common axis. The x-ray source is arranged to direct an x-ray energy spectrum along the common axis to impinge upon the member, the structure configured to perturb the x-ray energy spectrum, and positioned material under test. The structure lies between the x-ray source and the member to one side of the position for material under test intersecting the common axis, and the structure includes at least three adjacent regions, each region different to immediately adjacent regions and configured to perturb the x-ray energy spectrum differently.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: October 10, 2017
    Assignee: IBEX INNOVATIONS LTD.
    Inventor: Gary Gibson
  • Patent number: 9770603
    Abstract: The present invention relates a detector (11) for detecting megavoltage X-ray radiation (3), comprising a scintillator (2) including a plurality of heavy scintillating fibers (13) for emitting scintillation photons in response to incident megavoltage X-ray radiation (3), a support structure (15) for supporting said plurality of heavy scintillating fibers (13) and holding them in place; and a photodetector (17) for detecting the spatial intensity distribution of the emitted scintillation photons. The present invention further relates to an apparatus (35) for radiation therapy comprising a particle accelerator (37) and a detector (11) for detecting megavoltage radiation. Still further, the present invention relates to methods for detecting X-ray radiation and for radiation therapy.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: September 26, 2017
    Assignee: Koninklijke Philips N.V.
    Inventors: Pedro Jorge Da Silva Rodrigues, Andreia Maria Araujo Trinadade Rodrigues
  • Patent number: 9759820
    Abstract: A scintillator array including a plurality of scintillators, an optical detector array corresponding to the scintillators, an AD conversion unit configured to convert an analog signal output from each optical detector into digital data, and a position detection processing unit configured to specify a position of the scintillator on which the radiation is incident are provided. If there are two different pieces of digital data at the same time, the position detection processing unit determines that radiation is incident on two scintillators when energy value data of the two pieces of digital data is greater than an energy value of a Compton edge and specifies the address of the scintillator on which the radiation is incident by comparing the energy values of the two pieces of digital data when at least one of the two energy values is less than the energy value of the Compton edge.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: September 12, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Ryosuke Ota, Ryoko Yamada, Tomohide Omura, Mitsuo Watanabe
  • Patent number: 9632185
    Abstract: The present invention provides a scintillator panel which is provided with a narrow-width barrier rib with high accuracy in a large area, and also has high luminous efficiency and realizes clear image quality. The present invention provides a scintillator panel including a sheet-like substrate, a barrier rib provided on the substrate, and a scintillator layer filled in cells divided by the barrier rib, wherein the barrier rib is made of a material containing a low melting point glass as a main component, and the scintillator layer is made of a phosphor and a binder resin.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: April 25, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Hideki Kinoshita, Tsubasa Hamano, Masaki Okamura
  • Patent number: 9618630
    Abstract: A radiation detection system comprising a detection grid of wavelength shifting fibers with a volume of scintillating material at the intersecting points of the fibers. Light detectors, preferably Silicon Photomultipliers, are positioned at the ends of the fibers. The position of radiation is determined from data obtained from the detection grid. The system is easily scalable, customizable, and also suitable for use in soil and underground applications. An alternate embodiment employs a fiber grid sheet or layer which is comprised of multiple fibers secured to one another within the same plane. This embodiment further includes shielding in order to prevent radiation cross-talk within the grid layer.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: April 11, 2017
    Assignee: JEFFERSON SCIENCE ASSOCIATES, LLC
    Inventors: Brian J. Kross, Andrew Weisenberger, Carl Zorn, Wenze Xi
  • Patent number: 9599726
    Abstract: A crystal-array module includes a number of unit crystal strips. The three-dimensional shape of the crystal-array module is a frustum or a combination of a right quadrangular prism and the frustum. The frustrum includes a first bottom face coupled with a photoelectric device and a first top face opposed to the first bottom face. The area of the first bottom face is smaller than that of the first top face. A fabrication method of the crystal-array module includes joining cut unit crystal strips or cut unit crystal strip arrays together.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: March 21, 2017
    Assignee: RAYCAN TECHNOLOGY CO., LTD. (SU ZHOU)
    Inventors: Qingguo Xie, Chen Zeng, Daoming Xi
  • Patent number: 9599728
    Abstract: A scintillator pack (2) and a CT X-ray detector array (1) comprising such scintillator pack (2) are proposed. The scintillator pack (2) comprises an array of scintillator pixels (3). At a bottom surface (31) of each scintillator pixel (3), an X-ray absorbing encapsulation (13) is provided. This encapsulation (13) comprises an electrically insulating highly X-ray absorbing material having an atomic number greater than 60 such as, for example, Bismuth oxide (Bi2O3). The X-ray absorbing encapsulation (13) is interposed between the scintillator pixels (3) and an electronic circuit (19). The electronic circuit (19) may be provided as an ASIC in CMOS technology and may therefore be sensitive to X-ray induced damage. The encapsulation (13) provides for good X-ray protection of such electronic circuit (19).
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: March 21, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Simha Levene, Nicolaas Johannes Anthonius Van Veen, Lev Gregorian, Antonius Wilhelmus Maria De Laat, Gerardus Franciscus Cornelius Maria Lijten, Rafael Goshen
  • Patent number: 9589843
    Abstract: The manufacturing efficiency of a semiconductor device is improved. A method for manufacturing a semiconductor device includes a step of sealing a semiconductor chip using a mold die having a cavity, a gate part communicating with the cavity, and a vent part provided opposite to the gate part via the cavity, and extending in a first direction in a sealing step. Further, a lead frame has a first through hole provided at a position overlapping the cavity in the sealing step, and a second through hole provided outside the first through hole, and provided at a position overlapping the vent part in the sealing step. Whereas, in a second direction crossing with the first direction, the length of the second through hole is larger than the length (groove width) of the vent part.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: March 7, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Junji Ikura
  • Patent number: 9572540
    Abstract: A detection device for a CT system comprises a low-energy detector assembly; and a high-energy detector assembly disposed under the low-energy detector assembly. The high-energy detector assembly comprises: a plurality of rows of high-energy detectors arranged at predetermined intervals. With the detection device, detectors and data acquisition units are greatly reduced. A high-resolution three-dimensional CT image is acquired while high-accuracy hazardous article alarm is achieved. The cost of manufacture of the system is greatly decreased while high system performance is ensured.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: February 21, 2017
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Li Zhang, Zhiqiang Chen, Yuanjing Li, Mingliang Li
  • Patent number: 9568616
    Abstract: A crystal-array module includes a number of unit crystal strips. The three-dimensional shape of the crystal-array module is a frustum or a combination of a right quadrangular prism and the frustum. The frustrum includes a first bottom face coupled with a photoelectric device and a first top face opposed to the first bottom face. The area of the first bottom face is smaller than that of the first top face. A fabrication method of the crystal-array module includes joining cut unit crystal strips or cut unit crystal strip arrays together.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: February 14, 2017
    Assignee: RAYCAN TECHNOLOGY CO., LTD. (SU ZHOU)
    Inventors: Qingguo Xie, Chen Zeng, Daoming Xi
  • Patent number: 9568614
    Abstract: A radiation detection apparatus comprises a sensor panel including a plurality of sensor units which detect radiation and are arrayed, each of the plurality of sensor units comprising a pixel array including a plurality of pixels which detect light and are two-dimensionally arranged, a scintillator layer which converts radiation into light, and a first scintillator protective layer disposed to cover the scintillator layer, and the radiation detection apparatus further comprising a second scintillator protective layer disposed to cover the plurality of sensor units.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: February 14, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yohei Ishida, Satoshi Okada, Kazumi Nagano, Shoshiro Saruta, Keiichi Nomura
  • Patent number: 9567517
    Abstract: A neutron scintillator composed of a resin composition comprising (A) an inorganic phosphor containing at least one neutron capture isotope selected from lithium 6 and boron 10 and (B) a resin, wherein the inorganic phosphor is a particle having a specific surface area of 50 to 3,000 cm2/cm3, and the internal transmittance based on 1 cm of the optical path length of the resin composition is 30%/cm or more at the emission wavelength of the inorganic phosphor.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: February 14, 2017
    Assignee: TOKUYAMA CORPORATION
    Inventors: Kentaro Fukuda, Noriaki Kawaguchi, Sumito Ishizu
  • Patent number: 9551793
    Abstract: An ordering structure scintillator of scintillator and fabrication method is disclosed. The ordering structure scintillator of scintillator comprises: a tubular template, which consists of a plurality of thin film oxidized metal tubes; a plurality of scintillators, filled in the thin film oxidized metal tubes; and a package layer, formed on the surface of the tubular template for protecting the tubular template. In addition, through the fabrication method, the ordering structure scintillator of scintillator can be made by anodic treatment and die casting technology with low cost and rapid production; moreover, the film oxidized metal tubes of the tubular template can be further manufactured to nano tubes by adjusting electrolyte composition, electrolysis voltage, and processing time of anodic treatment, and the aperture size, the thickness and the vessel density of the nano tube can be controlled and ranged from 10 nm to 500 nm, 0.1 ?m to 1000 ?m, and 108 to 1012 tube/cm2, respectively.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: January 24, 2017
    Assignee: NATIONAL CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ker-Jer Huang, Deng-Horng Tsai, Tsan-Nan Yang, Soon-Lin Chen, Chien-Chon Chen
  • Patent number: 9529100
    Abstract: The present disclosure relates to a positron emission tomography detector and a positron emission tomography system using the same. More particularly, the positron emission tomography detector includes: a lower detecting unit configured to have a plurality of detector modules disposed in a ring or polygonal shape; and an upper detecting unit configured to have a plurality of detector modules which are spaced apart from each other by a predetermined distance, or of which at least some are in contact with each other to be formed on the lower detecting unit, and formed in a conical shape which is tilted by a preset angle. By the configuration as described above, since the positron emission tomography detector and the positron emission tomography system using the same according to the present disclosure have a large number of effective lines of response (LOR) and increase geometric efficiency, it is possible to improve sensitivity.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: December 27, 2016
    Assignee: Sogang University Research Foundation
    Inventors: Yong Choi, Hyeok Jun Choe
  • Patent number: 9515276
    Abstract: An organic x-ray detector is presented. The organic x-ray detector includes a layered structure. The layered structure includes a thin-film transistor (TFT) array disposed on a substrate, an organic photodiode disposed on the TFT array, and a scintillator layer disposed on the organic photodiode. The organic x-ray detector further includes an encapsulation cover at least partially encapsulating the layered structure; and an oxygen getter layer disposed between the organic photodiode and the encapsulation cover, wherein the oxygen getter layer includes an ether-containing material. X-ray system including the organic x-ray detector is also presented.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: December 6, 2016
    Assignee: General Electric Company
    Inventors: Kwang Hyup An, Gautam Parthasarathy, Jie Jerry Liu, James Edward Pickett
  • Patent number: 9513378
    Abstract: Disclosed herein too is an apparatus for measuring radiation, comprising an array of photodetectors for receiving the radiation; for each photodetector of the array of photodetectors, an anode buffer for generating an electronic signal indicative of receiving the radiation at the photodetector; and a mini-block corresponding to the photodetector array, the mini-block including a summation circuit for calculating an energy of the received radiation from the electronic signals corresponding to each photodetector of the array of photodetectors, and a position circuit for calculating a coordinate of the energy received at the array of photodetectors.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: December 6, 2016
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Melika Roknsharifi
  • Patent number: 9513387
    Abstract: A system and method is provided for determining depth of interaction (DOI) information. The system and method includes a detector configured to generate DOI information as a result of radiation emitted from a radiation source. The system and method further includes a plurality of scintillator pixels forming a block, wherein the plurality of scintillator pixels have a first portion and a second portion. A first medium distributed in an alternating pattern of coupling and separation between each of the scintillator pixels in a first portion or second portion of the block is also provided. A plurality of sensors for detecting scintillation events across the plurality of scintillators based on the alternating pattern of coupling and separation between each of the scintillator pixels, wherein DOI information is provided by a position profile of the block, and an image processor for generating a 3 dimensional image from the DOI information are also included.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: December 6, 2016
    Assignees: Siemens Aktiengesellschaft, Siemens Medical Solutions USA, Inc.
    Inventors: Debora Henseler, Matthias J. Schmand, Ronald Grazioso
  • Patent number: 9480446
    Abstract: An X-ray detection submodule, comprising: a substrate; a photodiode mounted on the substrate; an X-ray detection element configured to detect an X-ray and convert the X-ray into light; and a light waveguide provided between the photodiode and the X-ray detection element, wherein the light waveguide connects the X-ray detection element with the photodiode such that the substrate is inclinedly disposed with respect to an X-ray detection surface of the X-ray detection element.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: November 1, 2016
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Atsushi Hashimoto, Akira Nishijima, Shuya Nambu, Yoji Kudo, Masahiko Yamazaki, Tomonori Asada