Methods Patents (Class 250/362)
  • Patent number: 11307314
    Abstract: A scintillating material that is a radiation hardened plastic and flexible elastomer is disclosed. The material is useful in a wide range of high energy particle environments and can be used to create detectors. Such detectors can be used in physics experiments or in medical treatment or imaging. The scintillator can be radiation hardened so as to allow for an extended lifetime over other materials.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: April 19, 2022
    Assignee: University of Iowa Research Foundation
    Inventors: Ugur Akgun, Yasar Onel
  • Patent number: 11291419
    Abstract: Interstitial brachytherapy is a cancer treatment in which radioactive material is placed closely to the target tissue of the affected site using an afterloader (HDR-brachytherapy) or manually (LDR- and PDR-brachytherapy). For HDR-brachytherapy, the accuracy of this placement is calibrated using an external reference system that locates the radioactive material according to the radiation levels measured at locations around the source. At each of these locations, a scintillator produces light when irradiated by the radioactive material. This light is proportional to the level of radiation at each location. The light produced by each scintillator is converted to an electrical signal that is proportional to the light and the radiation level at each location. The radioactive material is located according to the plurality of electrical signals.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 5, 2022
    Inventors: Luis Miguel da Conceição Moutinho, Joana Isabel Ferreira dos Santos Melo
  • Patent number: 11287540
    Abstract: Disclosed herein are methods and devices for the acquisition of positron emission (or PET) data in the presence of ionizing radiation that causes afterglow of PET detectors. In one variation, the method comprises adjusting a coincidence trigger threshold of the PET detectors during a therapy session. In one variation, the method comprises adjusting a gain factor used in positron emission data acquisition (e.g., a gain factor used to multiply and/or shift the output(s) of a PET detector(s)) during a therapy session. In some variations, a method for acquiring positron emission data during a radiation therapy session comprises suspending communication between the PET detectors and a signal processor of a controller for a predetermined period of time after a radiation pulse has been emitted by the linac.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: March 29, 2022
    Assignee: RefleXion Medical, Inc.
    Inventors: Peter Demetri Olcott, Matthew Francis Bieniosek, Brent Harper
  • Patent number: 11280890
    Abstract: A method for determining a distance to a target by a geodetic instrument is disclosed. The method comprises emitting an optical pulse towards a target at an emission time, applying a bias adjustment to a photodiode that is arranged to receive a return optical pulse reflected at the target, obtaining a reference signal that is indicative of a transient behavior of the photodiode for the bias adjustment, obtaining a difference signal by subtracting, from a signal output from the photodiode, a signal that resembles, or is equal to, the transient behavior of the photodiode in response to the bias adjustment based on the reference signal, extracting a reception time that corresponds to reception of the return optical pulse at the photodiode based at least in part on the difference signal, and determining the distance to the target based on the emission time and the reception time.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: March 22, 2022
    Assignee: Trimble AB
    Inventor: Claes Ekengren
  • Patent number: 11278252
    Abstract: A workstation 5 links an X-ray image conforming to the Dicom standard and exposure dose data prepared by an exposure measurement system 7 with use of information on the imaging date and time of the X-ray image conforming to the Dicom standard and information on the imaging date and time of the exposure dose data prepared by the exposure measurement system 7. This enables the workstation 5 to calculate an exposure dose corresponding to each X-ray image. Also, the workstation 5 calculates an exposure dose corresponding to each X-ray examination on the basis of data on the start time and end time of the examination received from a console part 1. An examination time and an imaging technique at each examination, data including information on a subject, and information indicating an exposure dose corresponding to the examination are configured as one piece of data and displayed on a display part 51 of the workstation 5.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: March 22, 2022
    Assignee: Shimadzu Corporation
    Inventors: Daisuke Notohara, Shinsuke Kanazawa, Tomoharu Okuno
  • Patent number: 11262463
    Abstract: The present invention provides a detector and an emission tomography device including the detector. The detector comprises: a scintillation crystal array comprising a plurality of scintillation crystals; and a photo sensor array, coupled to an end surface of the scintillation crystal array and comprising multiple photo sensors. At least one of the multiple photo sensors is coupled to a plurality of the scintillation crystals respectively. Surfaces of the plurality of the scintillation crystals not coupled to the photo sensor array are each provided with a light-reflecting layer, and a light-transmitting window is disposed in the light-reflecting layer on a surface among the surfaces adjacent to a scintillation crystal coupled to an adjacent photo sensor. The detector has DOI decoding capability. No mutual interference occurs during DOI decoding, and decoding is more accurate.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: March 1, 2022
    Assignee: ZHONGPAI S&T (SHENZHEN) CO., LTD
    Inventors: Siwei Xie, Xi Zhang, Fenghua Weng, Zhixiang Zhao, Yunlong Zan, Qiu Huang
  • Patent number: 11259768
    Abstract: An apparatus for beta-emission two-dimensional imaging including: a beta ray detector configured to receive, from an imaging target containing a first nuclide and a second nuclide, a beta ray based on the first or second nuclide and thereby detect the beta ray, the beta ray detector outputting a beta ray detection signal including location information indicating a detection location of the beta ray on a two-dimensional basis; a gamma ray detector configured to detect a gamma ray, the gamma ray detector detecting the first and second peculiar gamma rays in a discriminable manner; and an imaging processor configured to be capable of generating a distribution image of the first nuclide and a distribution image of the second nuclide in a discriminable manner.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: March 1, 2022
    Assignee: RIKEN
    Inventor: Tomonori Fukuchi
  • Patent number: 11255987
    Abstract: Methods for calibrating a Nuclear-Medicine (N-M) imaging system including calibrating an N-M imaging system scanning unit for scanning detector uniformity map and energy resolution as well as generating an angular orientation map of a plurality of scanning units and a line source of radiation. There is further disclosed a jig for holding a line source during a calibration process of an N-M imaging system.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: February 22, 2022
    Assignee: Spectrum Dynamics Medical Limited
    Inventors: Nathaniel Roth, Yoel Zilberstien
  • Patent number: 11248169
    Abstract: The disclosure relates to a scintillator material for a radiation detector. In an embodiment, the scintillator material can include a crystalline alkaline-earth metal halide comprising at least one alkaline-earth metal selected from Mg, Ca, Sr, Ba, said alkaline-earth metal halide being doped with at least one dopant that activates the scintillation thereof other than Sm2+, and co-doped with Sm2+, said alkaline-earth metal halide comprising at least one halogen selected from Br, Cl, I.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: February 15, 2022
    Assignees: STICHTING VOOR DE TECHNISCHE WETENSCHAPPEN, UNIVERSITE DE BERNE
    Inventors: Pieter Dorenbos, Karl Krämer, Mikhail Alekhin
  • Patent number: 11249205
    Abstract: A method for determining a bias (?i,j) affecting at least one pixel of a detector (1) of ionizing radiation, the detector comprising a plurality of pixels (10i,j), each pixel being configured to collect charge carriers (6) generated by an interaction of the ionizing radiation in the detector, and to form a pulsed signal under the effect of the generation and collection of the charge carriers, the pixels being distributed in a matrix array, the method comprising: a) following the occurrence of an interaction in the detector, determining a pixel forming a pulse that exceeds an amplitude threshold, during a detection time interval; b) among each pixel determined in step a), selecting a pixel of interest that generates a highest amplitude; c) selecting at least one distant pixel (10f), the position of the distant pixel, with respect to the pixel of interest, being defined beforehand; d) measuring an amplitude of a signal generated by each distant pixel; e) on the basis of each measurement performed in step d),
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: February 15, 2022
    Assignee: Commissariat à l'Energie Atomique et aux Energies Alternatives
    Inventor: Sylvain Stanchina
  • Patent number: 11103199
    Abstract: A method of conducting a multi-pass dynamic positron emission tomography (PET) scans using continuous bed motion (CBM) mode is disclosed where the method involves acquiring PET sinogram data using CBM mode as the patient bed is moving in a first direction; acquiring PET sonogram data using CBM mode as the patient bed is moving in a second direction that is opposite from the first direction; and reconstructing 3-D PET image from the acquired PET sonogram data.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 31, 2021
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jicun Hu, Vladimir Y. Panin, Anne M. Smith, William Curtis Howe, Vijay Shah, Frank Kehren, Michael E. Casey, Matthew Baker, Bernard Bendriem
  • Patent number: 11096647
    Abstract: Systems and methods for digital radiography are provided. The method may be implemented on the implemented on a DR system including an imaging device and a computing device. The computing device may include at least one processor and at least one storage device. The method may include directing multiple dose sensors to detect a dose of radiation rays emitted from a radiation source of the imaging device. The multiple dose sensors may correspond to multiple imaging detectors, respectively. The method may also include determining the dose of the radiation rays. The method may further include directing, based on the dose of the radiation rays, at least one imaging detector of the multiple imaging detectors to proceed to detect the radiation rays for generating an image of a target object to be examined.
    Type: Grant
    Filed: December 30, 2018
    Date of Patent: August 24, 2021
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventor: Xunsan Tao
  • Patent number: 11096651
    Abstract: Methods and systems are provided for calibrating a nuclear medicine imaging system having more than 5 detector heads. In one embodiment, a method includes obtaining residual center of gravity determinations corresponding to each of a plurality of detector units based on point source projections acquired over a series of detector unit rotational steps, obtaining center of gravity determinations for each of the plurality of detector units based on point source projections acquired over a series of detector unit sweep angles, obtaining a fit of the center of gravity determinations for each of the plurality of detector units, and determining a sweep offset for each of the plurality of detector units based on the residual center of gravity determinations and the fit of the center of gravity determinations for each of the plurality of detector units. In this way, a sweep axis zero degree position for each of the plurality of detector units is determined.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: August 24, 2021
    Assignee: GE Precision Healthcare LLC
    Inventors: Sergio Steinfeld, Moshe Levy, Amir Abecassis, Jean-Paul Bouhnik, Ilya Dudarev, Omri Warshavski, Roee Khen, Jonathan Sachs, Rani Zananiri
  • Patent number: 11090018
    Abstract: A radiation imaging apparatus is provided. The apparatus comprises: an imaging region in which a plurality of conversion elements are arranged, wherein the plurality of conversion elements includes a first conversion element configured to obtain a radiation image and a second conversion element configured to obtain irradiation information of incident radiation during radiation irradiation; a storage unit configured to store correction data for correcting a signal output from the first conversion element; and a control unit. The control unit determines a period to cause the first conversion element to perform an accumulation operation in accordance with the irradiation information, determines a correction amount corresponding to the period based on the correction data, and generates a radiation image signal by correcting a signal output from the first conversion element in accordance with the correction amount after the radiation irradiation.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: August 17, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Minoru Watanabe, Kentaro Fujiyoshi, Sho Sato
  • Patent number: 11046589
    Abstract: The present invention discloses a multi-element perovskite material, and a single crystal, powder and a film thereof, as well as the applications thereof in photoluminescence and electroluminescence, in which the multi-element perovskite material is a multi-element fully-inorganic salt of non-lead metal halide and has a perovskite structure; and the chemical formula of the multi-element perovskite material is Cs2NaxAg1-xInyBi1-yCl6, wherein 0?x?1, 0?y?1. Meanwhile, based on the very strong self-trapped exciton states of the double perovskite, the present invention proposes a high-efficiency single-phase broadband phosphor and an electroluminescent device.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: June 29, 2021
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Jiang Tang, Shunran Li, Guangda Niu, Jiajun Luo, Qingsong Hu, Jing Liu
  • Patent number: 11045160
    Abstract: A radiation imaging apparatus is provided. The apparatus comprises: an imaging region in which a plurality of conversion elements are arranged, wherein the plurality of conversion elements includes a first conversion element configured to obtain a radiation image and a second conversion element configured to obtain irradiation information of incident radiation during radiation irradiation; a storage unit configured to store correction data for correcting a signal output from the first conversion element; and a control unit. The control unit determines a period to cause the first conversion element to perform an accumulation operation in accordance with the irradiation information, determines a correction amount corresponding to the period based on the correction data, and generates a radiation image signal by correcting a signal output from the first conversion element in accordance with the correction amount after the radiation irradiation.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: June 29, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Minoru Watanabe, Kentaro Fujiyoshi, Sho Sato
  • Patent number: 11002866
    Abstract: A scattering estimation method includes determining a convolution kernel for smoothing a single scattering distribution based on a scattered radiation index value (R) of a radioactive image (5) (S4) and fitting, to positron emission tomography measurement data, a scattering distribution smoothed by applying the convolution kernel to the single scattering distribution (S5).
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: May 11, 2021
    Assignee: Shimadzu Corporation
    Inventor: Yoshiyuki Yamakawa
  • Patent number: 10967201
    Abstract: A radiation monitor 1 includes a light-emitting unit 10 which generates light having an intensity depending on an amount of an incident radiation, an optical fiber 20 which sends a photon generated by the light-emitting unit 10, a photoelectric converter 30 which transmits one electric pulse to one sent photon, a dose calculation device 40 which counts the electric pulse amplified by the photoelectric converter 30 and converts the counted value of the measured electric pulses into a dose of the radiation, and a display device 50. The dose calculation device 40 counts the electric signals converted from the photon by the photoelectric converter 30 to calculate a counting rate, and stops the counting when the counting rate exceeds a predetermined threshold, and performs counting when the counting rate is less than the threshold.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: April 6, 2021
    Assignee: HITACHI, LTD.
    Inventors: Yuichiro Ueno, Takahiro Tadokoro, Yasushi Nagumo, Shuichi Hatakeyama, Katsunori Ueno, Kouichi Okada
  • Patent number: 10962661
    Abstract: Methods and systems for detecting a three-dimensional position of a scintillation event converting a radiation into a light. For example, a system includes a crystal array including a plurality of crystal elements arranged at least along a first direction and a second direction, the plurality of crystal elements extending along a third direction between a first end and a second end, the plurality of crystal elements being configured to receive the radiation entered from the second end; wherein: the plurality of crystal elements is arranged into a plurality of crystal pairs; each of the plurality of crystal pairs optically coupled to one light bridge at the first end extending and bridging light along the first direction; each of the plurality of crystal pairs is optically coupled for the light in the second direction with at least a neighboring crystal pair only through two light tunnels.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: March 30, 2021
    Assignee: Shanghai United Imaging Intelligence Co., Ltd.
    Inventors: Hongdi Li, Shaohui An
  • Patent number: 10928323
    Abstract: In the present invention, a detection device has a chip holder, an excitation-light radiation unit, and a heat source. The chip holder is used for positioning a detection chip that has: a prism; a metal film; a trapping body; and a substrate. The excitation-light radiation unit radiates excitation light at the reaction site via the light-entry surface of the detection chip, which is held by the chip holder. The heat source is disposed in a position so as to face, in a non-contacting manner, the surface of the prism of the detection chip held by the chip holder that is closest to the reaction site, and so as not to interfere with the optical path of the excitation light. The chip holder positions the detection chip while in contact with only the reverse surface of the substrate and/or a convex portion positioned on the prism.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: February 23, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventor: Yuta Suzuki
  • Patent number: 10873404
    Abstract: A method for finding an orthogonal direction of a radiation source with respect a digitally optimized interference pattern of a first fixed electromagnetic element and a second fixed electromagnetic element has been established. Determining a direction of a radiation source allows for dynamic control of moving object.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: December 22, 2020
    Inventor: Benjamin J. Egg
  • Patent number: 10869645
    Abstract: Adaptive imaging methods and systems for generating enhanced low light video of an object for medical visualization are disclosed and include acquiring, with an image acquisition assembly, a sequence of reference frames and/or a sequence of low light video frames depicting the object, assessing relative movement between the image acquisition assembly and the object based on at least a portion of the acquired sequence of reference video frames or the acquired sequence of low light video frames, adjusting a level of image processing of the low light video frames based at least in part on the relative movement between the image acquisition assembly and the object, and generating a characteristic low light video output from a quantity of the low light video frames, wherein the quantity of the low light video frames is based on the adjusted level of image processing of the low light video frames.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: December 22, 2020
    Assignee: Stryker European Operations Limited
    Inventors: John J. P. Fengler, Paul Roald Westwick, Frederick Allen Moore
  • Patent number: 10857245
    Abstract: There is provided a diagnostic imaging agent for early bone metastasis from cancer, containing trans-1-amino-[18F]fluorocyclobutanecarboxylic acid or a pharmaceutically acceptable salt thereof as an active ingredient.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: December 8, 2020
    Assignee: NIHON MEDI-PHYSICS CO., LTD.
    Inventors: Shuntaro Oka, Masaru Kanagawa, Akiharu Otaka, Masako Teramachi, Satoshi Watanabe, Toshie Nagatomo
  • Patent number: 10821307
    Abstract: A honeycomb rib structure in a rotating gantry of a proton includes an upper honeycombed rib plate and a lower honeycombed rib plate which are mounted in a cylindrical body through a plurality of connecting structures. The upper and lower honeycombed rib plates are symmetrically arranged, and are spliced by a plurality of basic structures which are in a regular hexagonal shape. Connecting nodes between the adjacent basic structures are of a ring structure. Densities of the upper and lower honeycombed rib plates are adjusted through a density increasing structure.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: November 3, 2020
    Assignee: HEFEI CAS ION MEDICAL AND TECHNICAL DEVICES CO., LTD.
    Inventors: Jinxing Zheng, Ming Li, Yuntao Song, Wuquan Zhang, Yong Cheng, Songzhu Yang, Yu Zhang
  • Patent number: 10816682
    Abstract: A radiation position detector includes a radiator including a medium that generates light in a first wavelength region and light in a second wavelength region by interacting with incident radiation, a first photodetector that includes a plurality of first two-dimensionally arranged pixels and detects the light in the first wavelength region, and a second photodetector that includes a plurality of second two-dimensionally arranged pixels and detects the light in the second wavelength region.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: October 27, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventor: Ryosuke Ota
  • Patent number: 10725187
    Abstract: Boron nitride nanotubes (BNNTs) with 1013 combined with a scintillation gas can serve as the basis for detecting thermal neutrons by detecting light from the decay products of the thermal neutron's absorption on the 10B atoms in the BNNT Material as the resultant decay products pass through the scintillating gas. BNNTs with 11B can be utilized as a scaffold for 238U and combined with a scintillation gas as the basis for detecting fast neutrons via detecting light from the fission decay products passing through the scintillating gas. Both technologies provide high spatial and temporal resolution for the detection of thermal neutrons and fast neutrons respectively.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: July 28, 2020
    Assignee: BNNT, LLC
    Inventors: Kevin C. Jordan, R. Roy Whitney
  • Patent number: 10690784
    Abstract: A 14C testing bottle, a 14C testing device, a 14C testing method, a sampling and preparation system and its implementation method are provided. The 14C testing bottle includes a pressure-bearing shell and a sample bin positioned in the pressure-bearing shell. A cavity is arranged in the sample bin and the 14C testing bottle is provided with an injection port connected to the cavity. The sample bin may diffuse the light produced in the cavity and at least part of the sample bin is transparent. An optical fiber channel is set on the pressure-bearing shell. One end of the optical fiber channel is connected with an external scintillation counter, and the other end of the optical fiber channel is connected with the transparent part of the sample bin. The 14C testing bottle may measure the 14C content in the carbon dioxide sample rapidly.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: June 23, 2020
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Zhongyang Luo, Yuxing Tang, Chunjiang Yu, Mengxiang Fang, Qinhui Wang, Tao Wang
  • Patent number: 10647914
    Abstract: Scintillating plastics resistant to crazing and fogging, methods of making and using the same are disclosed. The scintillating plastics include: one or more primary polymers present in an amount ranging from about 40 wt % to about 95 wt %; one or more secondary polymers present in an amount ranging from about 1 wt % to about 60 wt %; and one or more fluors present in an amount ranging from about 0.1 wt % to about 50 wt %. Methods of making such plastics include: creating a homogenous mixture of precursor materials including primary polymer, secondary polymer, and fluor in the amounts set forth above; and polymerizing the homogenous mixture. Methods of using such plastics include: exposing the scintillating plastic to one or more extreme environmental conditions for a predetermined amount of time without generating crazing or fogging within the scintillating plastic. Various additional features and specific embodiments of these inventive concepts are also disclosed.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: May 12, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Natalia P. Zaitseva, M. Leslie Carman, Andrew M. Glenn, Andrew Neil Mabe, Stephen A. Payne
  • Patent number: 10598800
    Abstract: The present disclosure relates to a process for fabricating a crystalline scintillator material with a structure of elpasolite type of theoretical composition A2BC(1-y)MyX(6-y) wherein: A is chosen from among Cs, Rb, K, Na, B is chosen from among Li, K, Na, C is chosen from among the rare earths, Al, Ga, M is chosen from among the alkaline earths, X is chosen from among F, Cl, Br, I, y representing the atomic fraction of substitution of C by M and being in the range extending from 0 to 0.05, comprising its crystallization by cooling from a melt bath comprising r moles of A and s moles of B, the melt bath in contact with the material containing A and B in such a way that 2s/r is above 1. The process shows an improved fabrication yield. Moreover, the crystals obtained can have compositions closer to stoichiometry and have improved scintillation properties.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: March 24, 2020
    Assignee: Saint-Gobain Cristaux et Detecteurs
    Inventors: Vladimir Ouspenski, Samuel Blahuta, Raphaël Huchet, Julien Lejay
  • Patent number: 10591630
    Abstract: A subsurface logging tool that is deployable in a wellbore that traverses a formation includes a gamma-ray scintillation detector with a thallium-based scintillator material. The scintillator material is suitable for high-temperature downhole environments (i.e., above 70° C.). As such, the scintillator material improves the performance of oilfield measurement(s) at temperatures above 70° C. and at least up to 175° C., when compared with the use of the other materials. The scintillator material may have an effective atomic number of at least sixty. The scintillator material may have the chemical formula Tl2LiY1-xCexCl6, where x is 0 to 1. Lithium (Li) may be partially or completely replaced by another alkali metal or by indium (In). Yttrium (Y) is partially or completely replaced by another rare earth element. Chlorine (Cl) is partially or completely replaced by another halide.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: March 17, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Markus Berheide, Cornelis Huiszoon
  • Patent number: 10534097
    Abstract: The present disclosure relates to a PET detector and a PET frame. The PET detector may include a plurality of detector modules and a plurality of installing modules configured to install the plurality of detector modules. The plurality of installing modules may be coupled together to form a detector ring. The PET frame may include a detector stabilizing cylinder configured to stabilize a detector and a fixing support configured to support the detector stabilizing cylinder. The detector stabilizing cylinder may be rotatably fixed on the fixing support.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: January 14, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Huawei Jiang, Huaifang Jiang
  • Patent number: 10527741
    Abstract: Systems and methods for configuring a radiation detector are provided. A first event is detected at a first scintillator crystal of a first detector unit. A second coincident event is detected at a second scintillator crystal of a second detector unit adjacent to the first detector unit. Operating parameters are calculated for the first detector unit based on the coincident events.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: January 7, 2020
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Sanghee Cho, Robert Mintzer, Johannes Breuer
  • Patent number: 10499863
    Abstract: A long length imaging system having a host processor, an x-ray source, and a plurality of radiographic detectors is configured to simultaneously capture a radiographic image of a portion of a subject exposed by the x-ray source, and to transmit the partial images to the host processor whereby the partial images are combined into a long length image.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: December 10, 2019
    Assignee: Carestream Health, Inc.
    Inventors: Timothy J. Wojcik, Mark E. Shafer, Bradley S. Jadrich, Friedrich H. Ueffinger
  • Patent number: 10482596
    Abstract: A method and system for simultaneously monitoring a positron emission tomography scanner performance during a continuous-bed-motion acquisition is disclosed.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: November 19, 2019
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Vladimir Y. Panin
  • Patent number: 10473797
    Abstract: An apparatus for detecting radiation for obtaining density information of a structure, the apparatus including: at least one detector (10), the detector (10) including: a scintillator (12) including a scintillating material for emitting light in response to incident radiation (14), and a photodetector (16) for receiving light emitted by the scintillating material (12) and outputting an electrical signal in response to light received from the scintillating material (12), wherein the photodetector (16) includes at least one silicon photomultiplier (16a). The invention reduces the volume of the apparatus and therefore provides particular advantages for use in scanning pipelines and other structures located deep subsea.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: November 12, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Marco Panniello, Emanuele Ronchi, Carl Robert Tipton
  • Patent number: 10424091
    Abstract: A method of beamforming datasets from a tomographic detection system. The system comprises scintillation detectors that are arranged in D detector pairs, D?1, wherein the detectors are adapted to count radiation hits. According to the method in one aspect, a tomographic dataset is received for each detector pair coordinates (?d, pd) of a detector pair d of the D detector pairs, so as to obtain a plurality of tomographic datasets. Each of said datasets is associated with respective detector pair coordinates (?d, pd). Then, for each point y of interest, the received datasets are coherently combined by weighting the datasets according to respective beamforming weights d(y)=?(?d, pd; y), based on said respective detector pair coordinates (?d, pd) and coordinates of said each point y of interest. This way, a signal focusing on said each point y is obtained. Related tomographic detection systems and computer program products may be also presented.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 24, 2019
    Assignee: Internationl Business Machines Corporation
    Inventors: Matthieu Simeoni, Paul Hurley, Lucien Roquette, Sepand Kashani
  • Patent number: 10422887
    Abstract: Disclosed is a photon-counting x-ray detector system having a plurality of photon-counting channels, and at least one anti-coincidence circuit, each of which is connected to least two of the channels and configured to detect coincident events in the connected channels. The x-ray detector system further includes an anti-coincidence controller configured to control the operation of the at least one anti-coincidence circuit based on photon count information by gradually adapting the operation of the at least one anti-coincidence circuit with increasing count rates, starting from a threshold count rate.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: September 24, 2019
    Assignee: PRISMATIC SENSORS AB
    Inventors: Mats Persson, Mats Danielsson, Cheng Xu
  • Patent number: 10390775
    Abstract: A method and system for acquiring a series of medical images includes receiving medical imaging data corresponding to photons emitted from a subject having received a dose of a radiotracer. Determining, from the medical imaging data, coincidence events including photon coincidence events involving two photons and photon coincidence events involving more than two photons. The photon coincidence events involving two photons and photon coincidence events involving more than two photons are processed and use to reconstruct a series of medical images of the subject.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: August 27, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Eduardo M. Lage, Joaquin Lopez Herraiz, Vicente Jose Parot, Shivang R. Dave
  • Patent number: 10338236
    Abstract: This disclosure provides a radiation detection apparatus and a method, a data processing method and a processor, which relates to the field of radiation detection technology. Wherein, the radiation detection apparatus of this disclosure comprises: a radiation detector which generates an electrical signal by interacting with X-rays; an Analog-to-Digital Converter (ADC) which is coupled to the radiation detector and transmits the electrical signal to a waveform data; and a data processor which receives the waveform data from the ADC, determines the number of single photon signals according to the waveform data, and determines whether an integral signal and/or a count signal of the waveform data will be used for imaging according to the number of the single photon signals.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 2, 2019
    Assignees: NUCTECH COMPANY LIMITED, TSINGHUA UNIVERSITY
    Inventors: Yuanjing Li, Ziran Zhao, Jianmin Li, Yulan Li, Weibin Zhu, Xiang Zou, Qingjun Zhang, Chunguang Zong, Xiaolin Zhao, Shuwei Li, Junxiao Wang
  • Patent number: 10274341
    Abstract: A magnetic shield cover for an encoder of magnetic detection type includes a soft magnetic section and a non-magnetic section. The soft magnetic section is formed to cover a magnetic detection element and a magnet and has an opening for avoiding a situation that a part of the soft magnetic section prevents a magnetic field from the magnet from passing through the magnetic detection element. The non-magnetic section is provided in the opening of the soft magnetic section.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: April 30, 2019
    Assignee: SANYO DENKI CO., LTD.
    Inventors: Kazuhiro Makiuchi, Yoshihiro Shoji
  • Patent number: 10228472
    Abstract: In a radiation position detection method, a scintillator that initially generates scintillation light is specified on the basis of a two-dimensional map showing regions for identifying a plurality of scintillators and the centroid position of positions where the scintillation light is generated. The regions shown in the two-dimensional map includes a first region corresponding to a first scintillator which is one of the plurality of scintillators, a second region corresponding to a second scintillator adjacent to the first scintillator among the plurality of scintillators, a third region that is located on the first region side and corresponds to the second scintillator, and a fourth region that is located on the second region side and corresponds to the first scintillator.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 12, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventor: Hiroshi Uchida
  • Patent number: 10159451
    Abstract: Some embodiments of the present invention provide a 2D position-sensitive detector assembly comprising at least three substantially planar detector portions arranged in overlapping relationship as viewed normal to a plane of the detector portions, each detector portion comprising an array of substantially parallel, linear detector elements, the detector elements of respective detector portions being mutually non-parallel, the detector elements each being configured to generate one or more electrical signals in response to interaction of a particle of radiation therewith.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: December 25, 2018
    Assignee: University of Lincoln
    Inventors: Nigel Allinson, Grainne Riley, Chris Waltham, Michela Esposito, Tony Price, Phil Allport, Jon Taylor, Gianluigi Casse, Phil Evans, Gavin Poludniowski, Stuart Green, Spyros Manolopoulos, Jaime Nieto-Camero, Marcus Verhoeven
  • Patent number: 10150913
    Abstract: The present disclosure relates to a scintillator, method for manufacturing the same and applications of scintillator. The scintillator has a chemical formula of Tl2ABC6:yCe, wherein A includes at least one alkali element; B includes at least one trivalent element; C includes at least one halogen element; and y is equal to or greater than 0 and equal to or smaller than 1.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: December 11, 2018
    Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC CO
    Inventors: Hong Joo Kim, Hwanbae Park, Sunghwan Kim, Gul Rooh
  • Patent number: 10107934
    Abstract: A device for detecting neutrons and gamma rays comprises at least one detector and an acquisition and data-analysis system, connected to the detector; the detector comprises an active part that is formed by a plurality of: scintillator layers, made of a scintillator material, in particular a plastic scintillator; and absorber layers, containing at least one neutron-absorbing material, in particular cadmium or gadolinium; the acquisition and data-analysis system is configured so as to: analyze the signals coming from the detector and calculate the total energy released within the detector following upon an interaction with gamma rays or neutrons; and discriminate between gamma rays and neutrons impinging upon the detector according to whether the energy detected is higher or lower than a pre-set threshold.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: October 23, 2018
    Assignees: ANSALDO NUCLEARE S.P.A., ISTITUTO NAZIONALE DI FISICA NUCLEARE
    Inventors: Raffaella De Vita, Francesca Ambi, Gabriele Firpo
  • Patent number: 10039937
    Abstract: A charged-particle beam therapy apparatus includes: an accelerator configured to accelerate a charged particle and emit a charged-particle beam; an irradiation unit configured to irradiate an irradiated body with the charged-particle beam using a scanning method; and a control unit. The control unit stores a control pattern of the apparatus during one treatment. An irradiation interruption time for which the irradiation of the irradiated body with the charged-particle beam by the irradiation unit is interrupted and an irradiation time for which the irradiation unit irradiates the irradiated body with the charged-particle beam are set in the control pattern. The sum of the irradiation interruption times during one treatment is set to be shorter than the sum of the irradiation times during one treatment.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: August 7, 2018
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Toshiki Tachikawa, Toru Asaba, Masanori Tachibana
  • Patent number: 10007004
    Abstract: According to one embodiment, an apparatus of manufacturing a radiation detection panel, includes an evaporation source configured to evaporate a scintillator material and emit the scintillator material vertically upward, a holding mechanism located vertically above the evaporation source, and holding a photoelectric conversion substrate, and a heat conductor arranged opposite to the holding mechanism with a gap.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: June 26, 2018
    Assignee: TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.
    Inventors: Hitoshi Chiyoma, Atsuya Yoshida, Wataru Matsuyama, Toyoo Yamamoto, Hiroshi Aida, Yuichi Shimba
  • Patent number: 9947713
    Abstract: A detection substrate and a manufacturing method thereof, and a detector are provided. The detection substrate comprises a base substrate, a thin film transistor, a PIN photodiode and a scintillation layer. The thin film transistor and the PIN photodiode are provided above a first face of the base substrate and the scintillation layer is provided above a second face of the base substrate. The visible light obtained after the X-ray passes through the scintillation layer is directly irradiated on the PIN photodiode after passing through the base substrate with relative high transmittance, thus preventing intensity of the light irradiated on the PIN photodiode from being weakened, and improving light utilization efficiency of the detection substrate.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: April 17, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Lei Zhao
  • Patent number: 9927536
    Abstract: A radiation detection apparatus includes a selecting unit that allows a light having a light emission wavelength and a polarization direction to pass thorough the selecting unit, an optical system that forms an image of the light, a photon detecting unit that observes the image formed by the optical system, and detects the photon in whole range of the entire image, a counting unit that calculates the number of the alpha rays based on a result of counting the photons derived from the light emission of gas excited by the alpha rays, whereby it is possible to sufficiently eliminate background light (noise light) even if background light is strong, and therefore observe weak light emission.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: March 27, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hidehiko Kuroda, Kunihiko Nakayama, Kei Takakura, Mikio Izumi, Naoto Kume
  • Patent number: 9885793
    Abstract: Embodiments are directed to a fast and thermal neutron detector material composition for Special Nuclear Material (SNM) detection. Specific embodiments of the material composition result in two excimer scintillation light production mechanisms that provide two corresponding independent techniques for gamma discrimination; namely Pulse Shape Discrimination and Pulse Height Discrimination. A dual discrimination method, Pulse Shape and Pulse Height Discrimination (PSHD), can be implemented relying on both pulse height discrimination and pulse shape discrimination, and can allow the operation of large area, fast and thermal neutron detectors.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: February 6, 2018
    Assignee: NANOPTICS, INCORPORATED
    Inventors: James K. Walker, Youngwook Noh, Richard T. Farley
  • Patent number: 9880292
    Abstract: According to one embodiment, an apparatus of manufacturing a radiation detection panel, includes an evaporation source configured to evaporate a scintillator material and emit the scintillator material vertically upward, a holding mechanism located vertically above the evaporation source, and holding a photoelectric conversion substrate, and a heat conductor arranged opposite to the holding mechanism with a gap.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: January 30, 2018
    Assignee: TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.
    Inventors: Hitoshi Chiyoma, Atsuya Yoshida, Wataru Matsuyama, Toyoo Yamamoto, Hiroshi Aida, Yuichi Shimba