X-ray Or Gamma-ray System Patents (Class 250/370.09)
  • Patent number: 11988786
    Abstract: A digital radiographic detector includes a planar multilayer core having a two-dimensional array of photo-sensitive cells. An enclosure having only one open side and upper and lower halves is joined together using a three-sided bumper configured to provide impact absorption for sides of the enclosure. An end cap covers the only one open side of the enclosure.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: May 21, 2024
    Assignee: Carestream Health, Inc.
    Inventors: Todd D. Bogumil, Steven R. Lippold
  • Patent number: 11968849
    Abstract: According to one embodiment, a radiation detector includes a detecting part, and a transmitting part. The detecting part is configured to output a signal. The signal corresponds to radiation incident on the detecting part. The transmitting part includes a first conductive layer, a second conductive layer, and an organic layer. The first conductive layer is electrically connected with the detecting part, and is configured to transmit the signal. The second conductive layer is separated from the first conductive layer. At least a portion of the organic layer is between the first conductive layer and the second conductive layer.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 23, 2024
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kohei Nakayama, Isao Takasu, Atsushi Wada, Fumihiko Aiga, Yuko Nomura
  • Patent number: 11914816
    Abstract: A detection device is provided and includes insulating substrate; detection element including first photodiode, thin film transistors including a first thin film transistor; non-detection element including second photodiode and first thin film transistor; reset control scan line; first reset signal line; and second reset signal line, wherein reset control scan line is coupled to two gates of first thin film transistor of detection element and two gates of first thin film transistor of non-detection element, first reset signal line is coupled to a source of first thin film transistor of detection element, and second reset signal line is coupled to a source of first thin film transistor of non-detection element.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: February 27, 2024
    Assignee: Japan Display Inc.
    Inventor: Akihiko Saitoh
  • Patent number: 11888014
    Abstract: Disclosed is a low temperature method of fabrication of short-wave infrared (SWIR) detector arrays (FPA) including a readout wafer and absorption layer connected for improved performances. The absorber layer includes a SWIR conversion layer with a GeSn or SiGeSn alloy. A first series of process steps realizes a CMOS processed readout wafer. A buffer layer is transferred on the readout wafer and annealed at temperatures compatible with the CMOS substrate, achieving a high quality crystalline buffer layer. The method assures a temperature profile between the light entrance surface of the buffer layer, and the readout electronics so the annealing temperature remains compatible with the CMOS. The buffer layer is used for further growth of a GeSn or SiGeSn structure to create the conversion layer and achieve the final structure of the SWIR FPA. Also disclosed is a SWIR FPA detector as realized by such method, and SWIR FPA applications.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 30, 2024
    Assignee: ZEDEL SÀRL
    Inventor: Claude Meylan
  • Patent number: 11857355
    Abstract: A system and method for detection of x-rays is provided. An x-ray detector system may include an energy-integrating x-ray detector having an array of x-ray sensing elements that are configured to sense x-rays emitted from an x-ray source and generate energy-integrating x-ray data. The system may also include a photon-counting detector having another array of x-ray sensing elements configured to determine an interaction between individual x-ray photons with individual sensing elements of the another array of x-ray sensing elements to generate photon-counting x-ray data. The system may further include electronics configured to receive the energy-integrating x-ray data and the photon-counting x-ray data simultaneously.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 2, 2024
    Assignee: WISCONSIN ALUMNI RESEARCH FOUNDATION
    Inventor: Ke Li
  • Patent number: 11844637
    Abstract: A self-shielded and computer controlled system for performing non-invasive stereotactic radiosurgery and precision radiotherapy using a linear accelerator mounted within a two degree-of-freedom radiation shield coupled to a three-degree of freedom patient table is provided. The radiation shield can include an axial shield rotatable about an axial axis and an oblique shield independently rotatable about an oblique axis, thereby providing improved range of trajectories of the therapeutic and diagnostic radiation beams. Such shields can be balanced about their respective axes of rotation and about a common support structure to facilitate ease of movement. Such systems can further include an imaging system to accurately deliver radiation to the treatment target and automatically make corrections needed to maintain the anatomical target at the system isocenter.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: December 19, 2023
    Assignee: Zap Surgical Systems, Inc.
    Inventors: Cesare Jenkins, Younes Achkire, Raymond Wilbur, John Adler, Manoocher Birang, Radhika Mohan Bodduluri, Hui Zhang, Tom McDermott, Chris Lee, Kaustubh Sonawale
  • Patent number: 11815635
    Abstract: A radiographic apparatus includes a plurality of pixel groups, bias sources, and a sensing unit, wherein each pixel group includes a pixel including a conversion element for converting radiation into a charge. Each bias source supplies a bias potential to the conversion element of a pixel via a bias line. The sensing unit samples a first signal value indicating a current flowing through a first bias line connected to a first pixel group including a pixel of which a switch element is turned on and a second signal value indicating a current flowing through a second bias line connected to a second pixel group where the switch element is off at timings overlapping at least in part and determines presence or absence of radiation irradiation based on the first signal value and the second signal value. The first and second bias lines have substantially same time constants.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: November 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryunosuke Bannai, Hideyuki Okada, Kentaro Fujiyoshi, Yoshiaki Serizawa, Shuichi Fujita
  • Patent number: 11774707
    Abstract: An image sensor includes: a photoelectric conversion film that performs photoelectric conversion on light having entered therein; at least two electrodes, including a first electrode and a second electrode, disposed at a surface of the photoelectric conversion film; and at least two electrodes, including a third electrode and a fourth electrode, disposed at another surface of the photoelectric conversion film.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: October 3, 2023
    Assignee: NIKON CORPORATION
    Inventor: Yuki Kita
  • Patent number: 11769783
    Abstract: A thin film transistor array substrate for a digital X-ray detector device includes a base substrate; a driving thin film transistor disposed over the base substrate; a PIN (P type semiconductor-Intrinsic type semiconductor-N type semiconductor) diode configured to be connected to the driving thin film transistor, the PIN diode including a lower electrode, a PIN layer, and an upper electrode; and at least one leakage current blocking layer configured to cover a side surface of the PIN layer and contact the PIN layer to thereby minimize generation of the leakage current of the PIN diode and improve characteristics such as detective quantum efficiency (DQE) and signal to noise ratio (SNR) and improving an image quality of the digital X-ray detector device.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: September 26, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Minsuk Kong, Moonsoo Kang
  • Patent number: 11762107
    Abstract: The invention relates to a combined detector (660) comprising a gamma radiation detector (100) and an X-ray radiation detector (661). The gamma radiation detector (100) comprises a gamma scintillator array (101x, y), an optical modulator (102) and a first photodetector array (103a, b) for detecting the first scintillation light generated by the gamma scintillator array (101x, y). The optical modulator (102) is disposed between the gamma scintillator array (101x, y) and the first photodetector array (103a, b) for modulating a transmission of the first scintillation light between the gamma scintillator array (101x, y) and the first photodetector array (103a, b). The optical modulator (102) comprises at least one optical modulator pixel having a cross sectional area (102?) in a plane that is perpendicular to the gamma radiation receiving direction (104). The cross sectional area of each optical modulator pixel (102?) is greater than or equal to the cross sectional area of each photodetector pixel (103?a, b).
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: September 19, 2023
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Christiaan Kok
  • Patent number: 11714205
    Abstract: A sensor unit (14) for a radiation detector (12), the sensor unit (14) comprising a conversion element (22) comprising a plurality of imaging pixels (30), wherein each imaging pixel (30) is configured to directly convert radiation into an electrical charge and wherein each imaging pixel (30) comprises a charge collection electrode (28); and a readout substrate (24) comprising a plurality of readout pixels (32), wherein each readout pixel (32) is connected to an associated imaging pixel (30) by means of an interconnection (36) at a connection position on the charge collection electrode (28); wherein each readout pixel (32) has a smaller area than an associated imaging pixel (30) of the plurality of imaging pixels (30); and wherein the connection positions in relation to the charge collection electrodes (28) are varied with respect to a neighboring charge collection electrode (28). A radiation detector (12) and a method of manufacturing a sensor unit (14) are also provided.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: August 1, 2023
    Assignee: XCounter AB
    Inventor: Christer Ullberg
  • Patent number: 11710798
    Abstract: Provided is a field shaping multi-well photomultiplier and method for fabrication thereof. The photomultiplier includes a field-shaping multi-well avalanche detector, including a lower insulator, an a-Se photoconductive layer and an upper insulator. The a-Se photoconductive layer is positioned between the lower insulator and the upper insulator. A light interaction region, an avalanche region, and a collection region are provided along a length of the photomultiplier, and the light interaction region and the collection region are positioned on opposite sides of the avalanche region.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: July 25, 2023
    Assignee: The Research Foundation for The State University of New York
    Inventors: Amirhossein Goldan, Wei Zhao
  • Patent number: 11693131
    Abstract: A radiation imaging apparatus comprising a first scintillator, a second scintillator which receives radiation transmitted through the first scintillator, conversion elements and a controller is provided. The conversion elements include first conversion elements and second conversion elements with different sensitivities for detecting light emitted from at least one of the first scintillator or the second scintillator. During radiation irradiation, the controller obtains, from a signal output from one or more measuring element configured to measure a dose of incident radiation, a first signal corresponding to light converted from radiation by the second scintillator, and outputs, based on the first signal, a stop signal configured to stop the radiation irradiation, and after the radiation irradiation, the controller causes the first conversion elements and the second conversion elements to output signals configured to generate an energy subtraction image.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: July 4, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Jun Kawanabe, Kentaro Fujiyoshi
  • Patent number: 11675096
    Abstract: An X-ray detector includes a converter element for converting X-rays into electric signals; and a plurality of pixel elements. In an embodiment, each pixel element includes a first signal processing stage for processing respective electric signals with at least one signal amplifier and at least one comparator for providing a digital pixel signal. The signal outputs of the first signal processing stage of at least one group of pixel elements are coupled via signal technology to a common second signal processing stage including a multiplicity of digital logic elements. The common second signal processing stage includes a configurable switching matrix for interconnecting at least one partial number of the multiplicity of digital logic elements with the respective signal outputs of the first signal processing stage, so that, following a configuration of the switching matrix, a processing chain can be provided for the digital processing of the digital pixel signals.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: June 13, 2023
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Edgar Goederer, Martin Hupfer, Bjoern Kreisler, Martin Petersilka
  • Patent number: 11647973
    Abstract: For gamma ray detection, 3D tiling is made possible by modules that include a gamma ray detector with at least some electronics extending away from the detector as a side wall, leaving an air or low attenuation gap behind the gamma ray detector. The modules may be stacked to form arrays of any shape in 3D, including stacking to form a Compton detector with a scatter detector separated from the catcher detector by the low attenuation gap where the electronics form at least one side wall between the detectors. The modules may be stacked so that the detectors from the different modules are in different planes and/or not part of a same surface (e.g., same surface provided with just 1D or 2D tiling).
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: May 16, 2023
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Alexander Hans Vija, Miesher Rodrigues
  • Patent number: 11612367
    Abstract: A digital radiographic detector system includes a number of DR detectors enclosed by a housing. A base section with wheels has attached thereto a vertical column with a height adjustable horizontal arm extending therefrom. The housing with DR detectors therein is attached to a distal end of the horizontal arm. The housing comprises a major surface made from a radiolucent material to allow the detectors to capture radiographic images via x-rays transmitted through the major surface of the housing. The housing is configured to support the plurality of DR detectors therewithin.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: March 28, 2023
    Assignee: Carestream Health, Inc.
    Inventors: Timothy J. Wojcik, Jacob M. Fornof, Craig F. Hofmann, Martin S. Pesce, Mark E. Shafer, Jeffery R. Hawver, Steven R. Lippold, Todd D. Bogumil
  • Patent number: 11576634
    Abstract: An imaging system is provided that includes a gantry, at least five detector units mounted to the gantry, a corresponding collimator for each of the detector units, at least one processing unit, and a controller. Each collimator has septa defining plural bores for each pixel of at least some of a plurality of pixels of the detector unit. A corresponding interior septum of the collimator is disposed above an internal portion of a corresponding pixel of the at least some of the plurality of pixels. The at least one processing unit is configured to obtain object information corresponding to the object to be imaged. The controller is configured to control an independent rotational movement of each the detector units used to acquire scanning information by detecting emissions from the object, wherein the controller rotates each of the detector units at a corresponding sweep rate.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: February 14, 2023
    Assignee: GE Precision Healthcare LLC
    Inventors: Jean-Paul Bouhnik, Tzachi Rafaeli, Gil Kovalski, Yariv Grobshtein, Riyad Mahameed, Yaron Hefetz, Einat Binyamin, Yulim Zingerman, Nurit Rivka Wartski
  • Patent number: 11567016
    Abstract: There is provided a radiographic imaging apparatus capable of alignment of a detector with a collimator with a position of a radiation source fixed. The radiographic imaging apparatus includes the radiation source which irradiates a subject with radioactive rays, a plurality of detecting elements which detect photons in the radioactive rays, and a collimator which is disposed between the radiation source and the detecting elements and has a plurality of walls which form a plurality of passing holes that the radioactive rays pass. The detecting element and the collimator are aligned with each other in a direction which is orthogonal to a direction that the subject is irradiated with the radioactive rays such that a ratio or a difference between output signals from the detecting elements which are mutually adjacent with the wall being interposed falls within a predetermined range.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: January 31, 2023
    Assignee: FUJIFILM HEALTHCARE CORPORATION
    Inventors: Masafumi Onouchi, Takafumi Ishitsu
  • Patent number: 11570385
    Abstract: Provided is an operation method of an image sensor including a plurality of pixels, the operation method including transmitting a first output voltage of a first pixel to a first amplifier, transmitting the first output voltage to a second amplifier by controlling a first switch connected to the first pixel, transmitting a second output voltage of a second pixel to be binned with the first pixel to the second amplifier by controlling a second switch connected to the second pixel, and outputting selectively one of a first output of the first amplifier and a second output of the second amplifier based on an illuminance of an environment in which the image sensor operates.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Daekun Yoon, Deokyoung Kang
  • Patent number: 11531124
    Abstract: Methods and devices for detecting incident radiation, such as incident X-rays, gamma-rays, and/or alpha particle radiation are provided. The methods and devices use high purity, high quality single-crystals of inorganic semiconductor compounds, including solid solutions, having the formula AB2X5, where A represents Tl or In, B represents Sn or Pb, and X represents Br or I, as photoelectric materials.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: December 20, 2022
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Mercouri G. Kanatzidis, Bruce W. Wessels, Zhifu Liu, Wenwen Lin
  • Patent number: 11511000
    Abstract: The invention relates to water soluble 18F-prosthetic groups and the synthesis and use of 18F-labeled biological molecules containing the 18F-prosthetic groups for imaging various processes within the body, for detecting the location of molecules associated with disease pathology, and for monitoring disease progression are disclosed.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: November 29, 2022
    Assignee: Bristol-Myers Squibb Company
    Inventors: David Donnelly, David K. Leung
  • Patent number: 11504079
    Abstract: A hybrid radiation imaging sensor includes a low x-ray attenuating substrate, a photoconductor disposed over the substrate, and a scintillator disposed over the photoconductor. By combining direct x-ray conversion to electron-hole pairs in the photo-conductor with indirect conversion of x-rays downstream of the photoconductor within the scintillator, improved x-ray imaging can be attained through an electronic readout located upstream of both the photoconductor and the scintillator without the need for excessive x-ray dosing.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: November 22, 2022
    Assignee: The Research Foundation for The State University of New York
    Inventors: Wei Zhao, James Scheuermann, Adrian Howansky, Rick Lubinsky, Amirhossein Goldan, Jann Stavro
  • Patent number: 11493649
    Abstract: In described examples, a charge sensitive amplifier (CSA) generates an integrated signal in response to a current signal. A high pass filter is coupled to the CSA and receives the integrated signal and an inverse of an event signal, the high pass filter generates a coarse signal. An active comparator is coupled to the high pass filter and receives the coarse signal and a primary reference voltage signal, the active comparator generates the event signal.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: November 8, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Rakul Viswanath, Nagesh Surendranath, Sandeep Kesrimal Oswal, Ratna Kumar Venkata Parupudi
  • Patent number: 11478663
    Abstract: An imager includes: an array of imager elements configured to generate image signals based on radiation received by the imager; and circuit configured to perform readout of image signals, wherein the circuit is configured to be radiation hard. An imager includes: an array of imager elements configured to generate image signals based on the radiation received by the imager; and readout and control circuit coupled to the array of imager elements, wherein the readout and control circuit is configured to perform signal readout in synchronization with an operation of a treatment beam source.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: October 25, 2022
    Assignee: VARIAN MEDICAL SYSTEMS INTERNATIONAL AG
    Inventors: Daniel Morf, Martin Amstutz
  • Patent number: 11476085
    Abstract: Systems and methods for implementing a detector array are disclosed. According to certain embodiments, a substrate comprises a plurality of sensing elements including a first element and a second element. The detector comprises a switching element configured to connect the first element and the second element. The switching region may be controlled based on signals generated in response to the sensing elements receiving electrons with a predetermined amount of energy.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: October 18, 2022
    Assignee: ASML Netherlands B.V.
    Inventors: Yongxin Wang, Zhonghua Dong, Rui-Ling Lai
  • Patent number: 11460591
    Abstract: A radiation imaging apparatus includes a pixel array, a bias line, a plurality of drive lines, and a driving unit configured to cyclically supply an ON voltage to the drive lines. The radiation imaging apparatus also includes an acquiring unit configured to acquire a plurality of signal values by acquiring a signal value representing a current flowing through the bias line at each of a plurality of times within a period in which the ON voltage is continuously supplied to at least one of the plurality of drive lines, and a processing unit configured to specify an outlier in the plurality of signal values and determine whether or not there is a radiation irradiation with respect to the pixel array based on a signal value among the plurality of signal values that is not an outlier, and without being based on the outlier.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: October 4, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Sasaki
  • Patent number: 11448779
    Abstract: A radiological imaging apparatus includes a first panel where a plurality of radiation detecting elements are arrayed on a first substrate, a second panel where a plurality of radiation detecting elements are arrayed on a second substrate, and a sheet-shaped adhesion part configured to adhere a second-panel side face of the first panel and a first-panel side face of the second panel to each other, so that the first panel and the second panel are overlaid on each other in planar view as to an upper face of the first substrate. The adhesion part is configured to maintain adhesion of the first panel and the second panel, while tolerating change in relative positions thereof in a planar direction parallel to the upper face of the first substrate.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 20, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Inoue, Shoshiro Saruta
  • Patent number: 11442029
    Abstract: Provided is a radiation detector including a radiation detecting unit, a gate module controlling a gate line, a readout module reading out charges stored in an exposure detection pixel determined by a data line and the gate line, and an auto exposure detecting unit determining whether the radiation detecting unit is exposed to a radiation.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: September 13, 2022
    Inventors: Choul Woo Shin, Won Chul Ko, Sung Hoon Lim, Jin Hyun Choi
  • Patent number: 11428825
    Abstract: Various methods and systems are provided for an imaging detector array. In one example, a detector module of the array has a central slit separating a first tile from a second tile of the detector module. An integrated circuit is located along a first side of the first tile and along a first side of the second tile and flex cable coupled to the integrated circuit of the first portion extends through the central slit of the detector module.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 30, 2022
    Assignee: GE Precision Healthcare LLC
    Inventors: Jahir Drago, Nicholas Konkle, Grant Schueneman, Faisal Saeed, James Rose
  • Patent number: 11411041
    Abstract: A digital radiographic image sensor includes a flexible first substrate with an image sensor array. A scintillator is formed over the array, and bonding pads in a peripheral region outside the array are connected to the array. A second substrate is attached to a bottom of the first substrate and includes a scribed or perforated break line to enable removal of a peripheral region of the second substrate.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: August 9, 2022
    Assignee: Carestream Health, Inc.
    Inventors: Timothy J. Wojcik, Ravi K. Mruthyunjaya, Bradley S. Jadrich
  • Patent number: 11400314
    Abstract: A boron neutron capture therapy system includes a neutron capture therapy device, a photon emission detection device and a treatment bed. The photon emission detection device includes a detecting portion surrounding the periphery of the treatment bed and detecting gamma rays generated after irradiating a boron-containing drug with neutrons; the detecting portion includes a first detecting portion and a second detecting portion moving away from or close to the first detecting portion so that the detecting portion forms a ring with the radius being increased or decreased; and the ring surrounds the treatment bed. The photon emission detection device for use in the boron neutron capture therapy system can change the radius of the ring, surrounding an irradiated object, of the detecting portion according to the actual condition in the boron neutron capture therapy so as to improve the detection precision of the photon emission detection device.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: August 2, 2022
    Assignee: NEUBORON MEDTECH LTD.
    Inventor: Ming-Chen Hsiao
  • Patent number: 11366240
    Abstract: A radiation detector having a plurality of pixels is provided. A respective one of the plurality of pixels includes a thin film transistor on a base substrate; an inter-layer dielectric layer on a side of the thin film transistor away from the base substrate; a sensing electrode and a bias electrode on a side of the inter-layer dielectric layer away from the base substrate, wherein the sensing electrode extends through the inter-layer dielectric layer to electrically connect to the thin film transistor; a passivation layer on a side of the sensing electrode and the bias electrode away from the inter-layer dielectric layer, wherein the passivation layer includes a first portion and a second portion; and a radiation detection layer on a side of the passivation layer away from the base substrate. The first portion and the second portion form a substantially flat contacting surface.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: June 21, 2022
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Kui Liang
  • Patent number: 11367747
    Abstract: Monolithic pixel detectors, systems and methods for the detection and imaging of electromagnetic radiation with high spectral and spatial resolution comprise a Si wafer with a CMOS processed pixel readout bonded to an absorber wafer in wafer bonds comprising conducting bonds between doped, highly conducting charge collectors in the readout and highly conducting regions in the absorber wafer and poorly conducting bonds between regions of high resistivity.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 21, 2022
    Inventor: Hans Von Känel
  • Patent number: 11367395
    Abstract: The present disclosure discloses a pixel driving circuit, a driving method for the pixel driving circuit, a display panel and a display apparatus. The pixel driving circuit for driving a light emitting device includes: a threshold compensation subcircuit, a driving subcircuit and an optical signal detection subcircuit; the threshold compensation subcircuit is coupled to a control electrode of a driving transistor, and a first electrode of the driving transistor is coupled to the light emitting device; the optical signal detection subcircuit is coupled to the threshold compensation subcircuit; and the optical signal detection subcircuit is configured to detect an optical signal which is incident on a region where the optical signal detection subcircuit is located.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: June 21, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yingming Liu, Haisheng Wang, Xiaoliang Ding, Lei Wang, Pengpeng Wang, Changfeng Li
  • Patent number: 11346964
    Abstract: A coded mask apparatus is provided for gamma rays. The apparatus uses nested masks, at least one of which rotates relative to the other.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: May 31, 2022
    Assignee: Australian Nuclear Science and Technology Organisation
    Inventors: David Boardman, Adam Sarbutt, Alison Flynn, Dale Prokopovich
  • Patent number: 11333777
    Abstract: A radiation imaging apparatus includes an internal unit having a radiation detector arranged to convert a radiation that is passed through a subject into electric signals. A base plate is arranged to support the radiation detector. A case having a rectangular parallelepiped shape is arranged to accommodate the internal unit. A fitting member is interposed between an inner wall of the case and an end portion of the internal unit, and fitted to the inner wall of the case and the end portion of the internal unit in a planar view as seen from an incident direction of the radiation.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: May 17, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidetomo Suwa, Akiya Nakayama, Hiroto Kondo, Masataka Suzuki, Shichihei Sakuragi, Atsushi Takeuchi, Riku Egawa, Tetsuo Watanabe, Takaaki Gonda
  • Patent number: 11335706
    Abstract: Disclosed are a thin-film transistor array substrate for a high-resolution digital X-ray detector and a high-resolution digital X-ray detector including the same, in which a photo-sensitivity is improved by increasing a fill factor, a stability of the PIN diode is improved, and generation of parasitic capacitance is reduced or minimized. In one embodiment, the PIN diode maximally extends so that electrodes and contact holes of the thin-film transistor is disposed inside the PIN diode. A planarization layer of organic material is present between the electrodes or wirings. Further, a light receiving region of the PIN diode is increased or maximized by positioning the bias line to overlap the data line or the gate line so as not to overlap with the PIN diode.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: May 17, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hanseok Lee, Hyeji Jeon, Youngyoung Chang
  • Patent number: 11304667
    Abstract: A method and apparatus for improvement of spatial resolution in molecular and radiological imaging is presented. System equipment includes bed with either flat or cylindrical detectors large detector arrays with collimator(s), lens(s), mirror(s) and/or shutter(s). This system utilizes magnification principles with large detector arrays. There is error reduction by reduction of non-collinearity error as seen in current PET scans by determination of the trajectory of the photons and accurate localization of the annihilation event of a positron. Additional error reduction of random coincidence and scatter coincidence is seen. Overall, this method and apparatus affords improved spatial resolution and higher efficiencies, which would allow for lower cost and dose reduction to the patient.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 19, 2022
    Inventors: David Byron Douglas, Robert E. Douglas
  • Patent number: 11294079
    Abstract: Various methods and systems are provided for an imaging detector array. In one example, a detector module of the array has an X-ray sensor assembly coupled to an upper surface of a conductive block and at least one integrated circuit positioned in a recess of the conductive block below the X-ray sensor assembly. The detector module may further include a radiation blocker positioned between the X-ray sensor assembly and the at least one integrated circuit.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 5, 2022
    Assignee: GE Precision Healthcare LLC
    Inventors: Nicholas Konkle, Daniel Lochner, Grant Schueneman, Jahir Drago
  • Patent number: 11287539
    Abstract: An apparatus for sensing radiation is provided. Certain examples provide an apparatus including: a first layer including a sensor, wherein the sensor is configured to be responsive to changes in an electric field in the vicinity of the sensor; a second layer including a substrate configured to produce charge carriers in response to incident radiation; and a third layer including a plurality of electrodes, wherein the plurality of electrodes are configured to be selectively addressed during a readout operation of the sensor. Certain examples, relate to an apparatus for sensing X-rays or sensing neutrons including a graphene field effect transistor.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: March 29, 2022
    Assignee: Nokia Technologies Oy
    Inventors: Zoran Radivojevic, Matteo Bruna
  • Patent number: 11278251
    Abstract: A workstation includes a receiver configured to receive identification information of an X-ray detector from the X-ray detector; a controller configured to set assign indicator information of the X-ray detector, based on the received identification information of the X-ray detector; an output unit configured to display the set assign indicator information of the X-ray detector; and a transmitter configured to transmit the set assign indicator information of the X-ray detector to the X-ray detector. The X-ray detector includes a transmitter configured to transmit the identification information of the X-ray detector to the workstation; a receiver configured to receive the assign indicator information from the workstation after the transmitter transmits the identification information of the X-ray detector to the workstation; and an output unit configured to display an assign indicator based on the received assign indicator information.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: March 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-seo Park, Woo-sup Han, Sang-uk Kim
  • Patent number: 11280918
    Abstract: The present technology relates to an imaging element and a driving method, and an electronic device that enable stable driving with low voltage and low power consumption and furthermore make it possible to ensure a time resolution of detection. A light detector includes a pixel array section including a plurality of first pixels and a second pixel. The first pixel includes a photoelectric conversion section that photoelectrically converts incident light, a floating diffusion section that generates a voltage in accordance with the amount of charge carriers obtained by photoelectric conversion, and a transfer section that transfers charge carriers from the photoelectric conversion section to the floating diffusion section; the readout of a signal is performed intermittently from the first pixel. Further, the output of the second pixel is monitored continuously to detect the incidence of light. The present technology can be applied to a radiation counter.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: March 22, 2022
    Assignee: Sony Corporation
    Inventors: Toshiyuki Nishihara, Kenichi Okumura
  • Patent number: 11280919
    Abstract: A radiation imaging apparatus is provided. The apparatus includes a substrate in which conversion elements are arranged and which transmits light beams, a first scintillator arranged on a first surface side of the substrate, and a second scintillator arranged on a second surface side opposite to the first surface. The conversion elements include first conversion elements and second conversion elements. The first conversion elements are arranged so as to receive light beams from the first scintillator and the second scintillator. A light-shielding layer is arranged between the first scintillator and each of the second conversion elements so as to set light amounts of the second conversion elements from the first scintillator smaller than those of the first conversion elements from the first scintillator, and the second conversion elements are arranged to receive a light beam from the second scintillator.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: March 22, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Katsuro Takenaka, Shoshiro Saruta, Atsushi Iwashita, Kentaro Fujiyoshi, Keiichi Nomura, Kazumi Nagano, Yohei Ishida, Tomoki Komatsu
  • Patent number: 11269084
    Abstract: Aspects of the subject disclosure may include, for example, a device comprising: a first micro-camera-element comprising a first sensor area and a first aperture element, the first aperture element having a first structural configuration, the first aperture element and the first sensor area being disposed relative to each other in order to cooperate in obtaining first imaging data having first characteristics, and the first characteristics comprising first imaging resolution and first angular coverage; a second micro-camera-element comprising a second sensor area and a second aperture element, the second aperture element having a second structural configuration, the second aperture element and the second sensor area being disposed relative to each other in order to cooperate in obtaining second imaging data having second characteristics, the second characteristics comprising second imaging resolution and second angular coverage, and the first imaging resolution differing from the second imaging resolution, th
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: March 8, 2022
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Ling-Jian Meng, Xiaochun Lai, Elena Maria Zannoni
  • Patent number: 11269089
    Abstract: The present disclosure relates to a digital X-ray detector, which includes a base substrate; a metal layer disposed on a bottom face of the base substrate; an elements-array disposed on a top face of the base substrate; a ground electrode disposed on a top face of the base substrate and electrically connected to the elements-array; a scintillator layer disposed on the elements-array; and a reflective plate disposed on the scintillator layer. Thus, a static-electricity discharge path along which static-electricity from the reflective plate moves through the ground electrode to the metal layer may be secured. This may increase or maximize an effective ground region, such that the static-electricity generated from the top and bottom of the digital X-ray detector can be more efficiently discharged out.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: March 8, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Jinpil Kim, Hanseok Lee, Sangmo Byun
  • Patent number: 11269085
    Abstract: First and second pulse height detection circuits output pulse height detection signals which rise when a detection pulse obtained from a radiation detector becomes greater than a lower threshold Lsh or an upper threshold Hsh, and fall when the detection pulse is smaller than the lower threshold Lsh or the upper threshold Hsh. Next, first and second rising and falling detection circuits detect rising and falling edges of the pulse height detection signals from the first and second pulse height detection circuits in synchronization with a clock pulse from a crystal oscillator, and a combining circuit outputs a signal corresponding to the detection pulse that is within a range between the lower threshold Lsh and the upper threshold Hsh by combining both outputs from the first and second rising and falling detection circuits, in synchronization with the clock pulse.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: March 8, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidetaka Yahata, Toshimitsu Nakai
  • Patent number: 11252342
    Abstract: A radiation imaging system that is capable of controlling a radiation generating apparatus and a radiation detector based on communication between a first control application and a second control application is provided. The radiation imaging system comprises a holding unit configured to hold a plurality of processing requests transmitted from the second control application, a determination unit configured to determine whether the plurality of processing requests held in the holding unit are processing requests to be continuously executed, and a control right obtaining unit configured to obtain a control right to control an imaging control unit of the first control application that performs the control in order to continuously process the processing requests.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: February 15, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hironori Yamashita
  • Patent number: 11252339
    Abstract: The present disclosure relates to an apparatus and methods for generating a hybrid image by high-dynamic-range counting. In an embodiment, the apparatus includes a processing circuitry configured to acquire an image from a pixelated detector, obtain a sparsity map of the acquired image, the sparsity map indicating low-flux regions of the acquired image and high-flux regions of the acquired image, generate a low-flux image and a high-flux image based on the sparsity map, perform event analysis of the acquired image based on the low-flux image and the high-flux image, the event analysis including detecting, within the low-flux image, incident events by an event counting mode, multiply, by a normalization constant, resulting intensities of the high-flux image and the detected incident events of the low-flux image, and generate the hybrid image by merging the low-flux image and the high-flux image.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: February 15, 2022
    Assignee: Direct Electron, LP
    Inventors: Benjamin Bammes, Robert Bilhorn
  • Patent number: 11249203
    Abstract: Methods and devices that use alkali metal chalcohalides having the chemical formula A2TeX6, wherein A is Cs or Rb and X is I or Br, to convert hard radiation, such as X-rays, gamma-rays, and/or alpha-particles, into an electric signal are provided. The devices include optoelectronic and photonic devices, such as photodetectors and photodiodes. The method includes exposing the alkali metal chalcohalide material to incident radiation, wherein the material absorbs the incident radiation and electron-hole pairs are generated in the material. A detector is configured to measure a signal generated by the electron-hole pairs that are formed when the material is exposed to incident radiation.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: February 15, 2022
    Assignee: Northwestern University
    Inventors: Mercouri G. Kanatzidis, Yadong Xu
  • Patent number: 11221422
    Abstract: A pixel structure of flat panel detection device, a flat panel detection device, and a camera system. The pixel structure of the flat panel detection device includes a photodiode configured to collect optical signals and convert the optical signals into electrical signals, the photodiode includes a positive terminal and a negative terminal, the negative terminal is connected to a bias voltage signal terminal; a signal amplification circuit, a signal input terminal of the signal amplification circuit is connected to the negative terminal of the photodiode, a signal output terminal of the signal amplification circuit is connected to a first node; a first switching transistor, a control electrode of the first switching transistor is connected to a scanning signal line, a first terminal of the first switching transistor is connected to a data signal line, and a second terminal of the first switching transistor is connected to the first node.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: January 11, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Gang Hua, Wang Guo, Yanna Xue, Yong Zhang, Lu Bai, Haobo Fang, Jian Lin, Limin Zhang