Plural Signalling Means Patents (Class 250/394)
  • Patent number: 11071198
    Abstract: A highly integrated miniature radiometer chip includes a base board with opposing top and bottom etched metal layers to form interconnect and ground pads, and a cavity to provide space for surface mounted parts that are attached to the bottom of a middle board which mounts directly over the top of the base board. The middle board has radio frequency circuits and semiconductor chips at a top metal layer, and surface mounted parts, and ground and signal pads at a bottom metal layer. Metalized vias extending through the dielectric material connect the top and bottom layers. A top cover includes a feedhorn, a waveguide section, and isolation compartments and channels that overlie the RF circuits on the middle board. A dielectric insert is located inside the feedhorn to enhance the feedhorn performance and seal the radiometer chip from external air, humidity and contaminants.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: July 20, 2021
    Assignee: Vu Systems, LLC
    Inventor: Danny Ammar
  • Patent number: 11002861
    Abstract: There is provided a photon-counting x-ray detector system (200) comprising a plurality of photon-counting channels (220), and at least one anti-coincidence circuit (230), 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 (200) further comprises an anti-coincidence controller (240) configured to control the operation of said at least one anti-coincidence circuit based on photon count information by gradually adapting the operation of said at least one anti-coincidence circuit with increasing count rates, starting from a threshold count rate.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: May 11, 2021
    Assignee: PRISMATIC SENSORS AB
    Inventors: Mats Persson, Mats Danielsson, Cheng Xu
  • Patent number: 10969483
    Abstract: A method of imaging within an absorptive object comprising: placing transmit and receive antennas in close proximity to a surface of said object; transmitting electromagnetic pulses from the transmit antenna into the object; and receiving a receive signal at the receive antenna simultaneously with the transmit antenna transmitting said pulses; wherein the transmitting and receiving comprises the following steps: a) setting a threshold level for the receive signal strength; b) transmitting one or more pulses; c) comparing the receive signal for said one or more pulses with the threshold level; d) changing the threshold level; e) repeating steps b), c) and optionally d) one or more times. This arrangement can operate at extremely high speed due to the absence of any slow multi-bit ADCs.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: April 6, 2021
    Assignee: Novelda ASA
    Inventor: Tor Sverre Lande
  • Patent number: 10863114
    Abstract: A radiation image capturing apparatus includes scan lines of 1st to nth lines, scan driving units, a controller, an OE signal line and a CPV signal line. The OE signal line is to input OE signal by which an ON voltage is applied to a scan line. The CPV signal line is to input CPV signal by which the scan line, to which the ON voltage is applied by the input of the OE signal, is shifted to a next scan line. To the scan driving units, the controller inputs the CPV signal to sequentially shift the scan line from the 1st line to the nth line, and inputs the OE signal to apply the ON voltage only when the scan line is a scan line of an effective pixel region from which image data is read.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 8, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventor: Yuuichi Maruta
  • Patent number: 10802161
    Abstract: Disclosed is a directional gamma ray or neutron detector that locates a source both horizontally and vertically. In some embodiments, the detector comprises four “rod” scintillators around a shield, and an orthogonal “panel” scintillator mounted frontward of the rod scintillators. The azimuthal angle of the source may be calculated according to the detection rates of the rod scintillators, while the polar angle of the source may be calculated from the panel scintillator rate using a predetermined angular correlation function. Thus, the exact location of the source can be found from a single data set without iterative rotations. Embodiments of the detector enable rapid detection and precise localization of clandestine nuclear and radiological weapons in applications ranging from hand-held survey meters and walk-through portals, to vehicle cargo inspection stations and mobile area scanners. Such detectors are needed to detect clandestine nuclear weapons worldwide.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: October 13, 2020
    Inventor: David Edward Newman
  • Patent number: 10772580
    Abstract: Single photon emission computed tomography (SPECT) is performed with multiple emission energies. For quantitative or qualitative SPECT, the image formation process for emissions at different energy ranges is modeled (44, 46, 48, 50) separately. Different scatter, different attenuation, and/or different collimator-detector response models corresponding to different energy ranges are used in the reconstruction.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: September 15, 2020
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Xing Rong, Jun Ma, Alexander Hans Vija
  • Patent number: 10761225
    Abstract: An X-ray detection panel and a gate driver circuit driving gate lines disposed on the X-ray detection panel are discussed. A high-level scanning signal is output to the gate lines before X-rays are input to the X-ray detection panel, and a low-level scanning signal is input to the gate lines during an X-ray incidence period in which electrical charges are generated in pixels. Gate driving for accurate X-ray reading is enabled. The gate driver circuit is provided as a gate-in-panel (GIP) using transistors operating in response to an X-ray incidence signal. An X-ray detection panel that is able to accurately read X-rays can be provided.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: September 1, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: ChanYong Jung, MoonSoo Kang, ChangMin Woo
  • Patent number: 10690783
    Abstract: A radon measurement device includes a housing, a diffusion chamber, a diffusion chamber sensor, a diffusion pathway, a clock circuit, measurement circuitry, and a triggering mechanism. The diffusion chamber is disposed in an internal cavity of the housing. The housing includes a vent. The diffusion chamber sensor detects radioactive decay of radon and generates an electrical signal. The diffusion pathway enables introduction of ambient air into the diffusion chamber. The clock circuit outputs time data. The measurement circuitry receives the electrical signal and associates therewith a particular time datum. The triggering mechanism selectively isolates the vent from an environment and selectively triggers the measurement circuitry. Responsive to a triggering action on the triggering mechanism, the diffusion pathway is fluidly connected with the environment and functionality of the measurement circuitry is initiated.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: June 23, 2020
    Assignee: FORMATIVE HOLDINGS, LLC
    Inventors: Travis Allen Jewell, Jay Cranney
  • Patent number: 10670738
    Abstract: A portable detection apparatus can include a housing, a first detector for detecting ionizing radiation from a first subject and a second detector within the housing for the detecting the background radiation. A shield within the housing can surround the first and second detectors and define a shield aperture around the first and second detectors for radiation from the subject to enter the housing. A radiation blocking member can substantially block at least a portion of the ionizing radiation from reaching the second detector, whereby radiation detected by the second detector comprises substantially only the background radiation. A processor module can be connected to the first and second detectors for determining the amount of ionizing radiation detected by the first detector attributable to secondary radiation.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: June 2, 2020
    Assignee: Atomic Energy of Canada Limited / Energie Atomique Du Canada Limitee
    Inventors: Xiongxin Dai, Liqian Li, Guy Jonkmans, Aaron Ho
  • Patent number: 10602934
    Abstract: A probe device for detecting atherosclerotic plaque may include: an elongate shaft having a proximal end for coupling with a catheter and a distal end; an opening in a side of the shaft; a scintillating window disposed over the opening to form a water tight seal and thus form an imaging window compartment; a 45-degree rotating mirror disposed at least partially within the imaging window compartment; and an ultrasound transducer disposed at least partially within the imaging window compartment. The probe is a dual-modality, catheter radionuclide imaging and photoacoustic tomography (CRI-PAT) probe.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 31, 2020
    Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventor: Raiyan Zaman
  • Patent number: 10310105
    Abstract: A radiation image capturing apparatus includes a plurality of radiation detecting elements; a switch element; a scanning line; a signal line; a bias line; a hardware processor; and a reader which reads image data based on detection of irradiation, the image data based on an amount of charge accumulated in the plurality of radiation detecting elements. The hardware processor samples a signal a plurality of times, the signal based on a current of at least one of the currents flowing in the signal line, the bias line, the scanning line, and the detector line within a predetermined term and the hardware processor obtains a digital signal. The hardware processor calculates the obtained digital signal. The hardware processor determines whether the radiation image capturing apparatus is under a disturbance environment based on a result of calculation.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: June 4, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventor: Ryouhei Kikuchi
  • Patent number: 10302777
    Abstract: Disclosed is a directional gamma ray or neutron detector that locates a source both horizontally and vertically. In some embodiments, the detector comprises four “rod” scintillators around a shield, and an orthogonal “panel” scintillator mounted frontward of the rod scintillators. The azimuthal angle of the source may be calculated according to the detection rates of the rod scintillators, while the polar angle of the source may be calculated from the panel scintillator rate using a predetermined angular correlation function. Thus, the exact location of the source can be found from a single data set without iterative rotations. Embodiments of the detector enable rapid detection and precise localization of clandestine nuclear and radiological weapons in applications ranging from hand-held survey meters and walk-through portals, to vehicle cargo inspection stations and mobile area scanners. Such detectors are needed to detect clandestine nuclear weapons worldwide.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: May 28, 2019
    Inventor: David Edward Newman
  • Patent number: 10168438
    Abstract: The invention relates to signals representing energy of photons or particles of ionizing radiation incident on pixels of a semiconductor detector. Cross talk between the signals from different pixels is compensated using cross talk compensation signatures in the form of time domain series or functions which are aligned and applied to the cross talk signal in accordance with timing of the event which gave rise to the cross talk.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: January 1, 2019
    Assignee: Diamond Light Source Limited
    Inventors: Graham John Dennis, William Helsby
  • Patent number: 10013219
    Abstract: An image forming apparatus comprising: an acceptance section; a prediction section which predicts, based on margin information contained in an instruction for execution of an accepted job, an arrangement pattern of a plurality of sheets to be obtained by the execution; a determination section which determines, based on the margin information, whether or not a sum of respective areas of margin regions of the plurality of sheets is greater than a threshold associated with the predicted arrangement pattern; and an adjusted printing section which downscales, in response to a determination that the sum is greater than the threshold, an overall image consisting of a set of partial images intended to be formed and arranged in the predicted arrangement pattern, in such a manner as to fall within one or more sheets arranged in an altered arrangement pattern, and forms the downscaled image on the one or more sheets.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: July 3, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tetsuya Yoshioka
  • Patent number: 9961761
    Abstract: A radiation imaging apparatus, comprising a sensor panel in which a plurality of sensors configured to detect radiation are arrayed, a first circuit board that is arranged on the sensor panel and includes a circuit configured to read out a signal from each sensor, and a second circuit board that is arranged on the first circuit board and includes a circuit configured to read out a signal from each sensor, and whose radiant noise generation amount at a driving time of the circuit is larger than a radiant noise generation amount at a driving time of the circuit of the first circuit board, wherein the first circuit board is arranged between the sensor panel and the second circuit board.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: May 1, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Katsuya Yachi
  • Patent number: 9851299
    Abstract: A method for monitoring air particulates, including positioning a particulate capture medium, flowing a predetermined volume of air over a particulate capture medium to yield a test sample, measuring the temperature and humidity of the air to generate environmental information, generating optical interrogation data from the test sample, storing the optical interrogation data, and analyzing the optical interrogation data to identify and quantify particulates.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: December 26, 2017
    Inventor: Gregory Bertaux
  • Patent number: 9841513
    Abstract: The present disclosure relates to an X-ray detector which includes a pixel unit configured to include a photodiode and to output a voltage corresponding to an incident amount of X-rays, a comparator configured to compare the output voltage of the pixel unit with a preset threshold voltage to output a logic signal, and a counter configured to count the output signal of the comparator to convert to a digital output.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: December 12, 2017
    Assignee: VIEWORKS CO., LTD.
    Inventor: Bo Ram Lee
  • Patent number: 9817131
    Abstract: An apparatus is described herein. The apparatus comprises a first modality unit and a second modality unit. The first modality unit is located within a gantry. The second modality unit within the gantry is moveable along an examination axis to be concentric about with the first modality unit such that a field of view of the first modality unit and a field of view of the second modality unit are centered about a single point of interest.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: November 14, 2017
    Assignee: General Electric Company
    Inventor: Adam Clark Nathan
  • Patent number: 9632117
    Abstract: An electron beam detecting device detects a state of an electron beam radiated by an electron beam radiation device. A plurality of wire electrodes, which are conductors, are disposed corresponding to a plurality of filaments, the wire electrodes being electrically insulated from each other, in the area in which the electron beams are radiated. The electrical current flowing through each of the wire electrodes is measured by an electric current measuring instrument (measuring unit). A CPU (determining unit) determines the radiation level of the electron beams by receiving a signal output by the electric current measuring instrument. The CPU judges that when the measuring instrument measures a decrease of the current value, an abnormal condition exists in the filament corresponding to the conductor with the lower current value.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: April 25, 2017
    Assignee: SHIBUYA KOGYO CO., LTD.
    Inventors: Yukinobu Nishino, Yuichi Takenaka, Youhei Sakamoto, Ryo Abe
  • Patent number: 9599730
    Abstract: A counting digital x-ray detector for recording x-ray images of an object irradiated by x-ray radiation includes a direct x-ray converter for converting x-ray radiation into an electric signal and a matrix with a plurality of counting pixel elements. At least one part of the counting pixel elements has a signal input and two circuits for converting the signal into a count signal. A first circuit of the two circuits is configured to convert the signal entering the respective pixel element directly into a count signal and to count the count signal. A second circuit of the two circuits is configured to convert the signal entering directly into the respective pixel element together with coincident occurring signals of at least one neighboring pixel element into a count signal and to count the count signal. The first circuit and/or the second circuit are able to be activated individually and both together.
    Type: Grant
    Filed: December 21, 2013
    Date of Patent: March 21, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Spahn
  • Patent number: 9595101
    Abstract: An X-ray CT apparatus according to an embodiment includes acquiring circuitry and processing circuitry. The acquiring circuitry is configured to count photons derived from X-rays that have passed through a subject and to acquire a result obtained by discriminating energy levels of the counted photons as a counting result. The processing circuitry is configured to notify the acquiring circuitry of an energy dividing set that is set in accordance with an X-ray absorption characteristic of a substance designated by an operator, to receive the counting result acquired by the acquiring circuitry by allocating a counted value to each of a plurality of energy discrimination regions that are set in the energy dividing set, and to reconstruct image data by using the received counting result.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: March 14, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Tooru Kato, Daizo Oikawa, Hiroaki Nakai
  • Patent number: 9480440
    Abstract: A cone beam computed tomography system with a horizontally disposed, cylindrical gantry and a method for its use are provided. The cylindrical gantry includes a rotatable cylindrical frame fixed to a support frame. A cone beam X-ray source and X-ray detector are mounted to the circumference of the cylindrical frame at diametrically opposed positions. The cylindrical frame is actuated to revolve the X-ray source-detector arrangement around a horizontal axis, thereby scanning a recumbent subject positioned in the aperture of the cylindrical frame.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: November 1, 2016
    Assignee: QR SRL
    Inventor: Martino Fasoli
  • Patent number: 9449889
    Abstract: A method comprises placing a wafer and a ring-shaped beam profiler on a wafer holder, wherein the ring-shaped beam profiler is adjacent to the wafer, moving a first sensor and a second sensor simultaneously with the wafer holder, receiving a first sensed signal and a second sensed signal from the first sensor and the second sensor respectively and adjusting an ion beam generated by an ion beam generator based upon the first sensed signal and the second sensed signal.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: September 20, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun-Lin Chang, Chih-Hong Hwang, Nai-Han Cheng, Chi-Ming Yang, Chin-Hsiang Lin
  • Patent number: 9423512
    Abstract: A radiation imaging apparatus includes a pixel array having pixels, a bias line applying a bias potential to converters of the pixels, a detection circuit which detects a current flowing to the bias line, and a control unit which detects a start of radiation irradiation to the pixel array based on an output from the detection circuit and controls a charge accumulation operation of the pixels in accordance with the detection. The detection circuit includes a differential amplifier circuit and a feedback path, and applies a potential corresponding to a reference bias potential to the bias line. The differential amplifier circuit includes a first input terminal receiving the reference bias potential, a second input terminal connected to the bias line, and an output terminal, and the feedback path connects the output terminal and the second input terminal.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: August 23, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eriko Sato, Toshio Kameshima, Tomoyuki Yagi, Katsuro Takenaka, Hideyuki Okada, Sho Sato, Atsushi Iwashita, Takuya Ryu
  • Patent number: 9389322
    Abstract: An apparatus for detecting a radiation source includes a collimator configured to have an optical path for converging radiation formed therein, a radiation sensor provided at the end of the optical path and configured to measure the intensity of radiation incident on the optical path, a rotation driving unit connected to the collimator and configured to rotate the collimator up and down and left and right, movement means configured to move the collimator and the rotation driving unit along the surface of land, a position tracking unit provided within the collimator and configured to track a current position and to measure a distance moved by the movement means, and a radiation position information processing unit configured to obtain direction information and information about the distance to the radiation source based on a maximum intensity of radiation, measured by the radiation sensor, and the movement distance.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: July 12, 2016
    Assignee: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Pil Jae Oh, Sae Won Yoon, Kook Jin Chun
  • Patent number: 9297913
    Abstract: Imaging systems, methods, and computer readable mediums are provided. Image detectors are installed in a gantry to detect image information related to a subject. If obstructions are detected related to the field of view of an image detector, a system matrix can be updated accordingly. Thus, upon image reconstruction, artifacts related to obstructions can be minimized or altogether eliminated. This system can be a Nuclear Medicine (NM) imaging system to acquire Single Photon Emission Computed Tomography (SPECT) image information.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: March 29, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Yariv Grobshtein, Jean-Paul Bouhnik
  • Patent number: 9213110
    Abstract: A customizable and upgradable imaging system is provided. Imaging detector columns are installed in a gantry to receive imaging information about a subject. Imaging detector columns can extend and retract radially as well as be rotated orbitally around the gantry. The gantry can be partially populated with detector columns and the detector columns can be partially populated with detector elements. The system can automatically adjust an imaging operation based on installation information related to partial population or other factors such as scan type or subject specific information. This system can be a Nuclear Medicine (NM) imaging system to acquire Single Photon Emission Computed Tomography (SPECT) image information.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: December 15, 2015
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Gil Kovalski, Jean-Paul Bouhnik, Jonathan Sachs, Yariv Grobshtein, Yulim Zingerman, Arie Eshco, Yaron Hefetz
  • Patent number: 9158012
    Abstract: The present disclosure describes systems and methods for the detection and positioning of a radioactive source. In an exemplary embodiment, a detector array is placed in a four-quadrant formation to allow for self-shielding of the individual detectors from the radiation emitted by a radiation source. A further embodiment utilizes a fuzzy logic system and method to analyze the gross count response of each individual detector with respect to the other three to thereby determine a generalized location and direction of a radioactive source.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: October 13, 2015
    Assignee: University of Tennessee Research Foundation
    Inventors: Michael Joseph Willis, Steven E. Skutnik, Howard L. Hall
  • Patent number: 9086498
    Abstract: A two-dimensional radiation display device includes: a data acquisition unit that acquires two-dimensional radiation data detected a plurality of times from a plurality of radiation detectors; a data division processing unit that divides the two-dimensional radiation data into data regions of each section of specified direction; an integration processing unit that integrates the two-dimensional radiation data that is detected a plurality of times, for each section of specified direction; a data synthesis processing unit that synthesizes the integration values integrated for each section of specified direction into two-dimensional data including radiation distribution; and an image output unit that outputs two-dimensional data indicating radiation distribution as display data in accordance with a prescribed display format.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: July 21, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoto Kume, Toru Onodera, Yoshinori Satoh, Shunichiro Makino, Tatsuyuki Maekawa, Tsukasa Teramura
  • Publication number: 20150146852
    Abstract: An X-ray detector capable of independently controlling a read-out rate for each region, an X-ray imaging apparatus having the same, and a method of controlling the same are provided. The X-ray detector includes a plurality of pixels which are two-dimensionally arranged and configured to output an electrical signal corresponding to incident X-rays, a plurality of gate lines configured to connect the plurality of pixels in a row direction, a plurality of data lines configured to connect the plurality of pixels in a column direction, a read-out circuit configured to read out the electrical signal generated by the plurality of pixels through the plurality of data lines, and a switcher configured to independently turn connections between the respective data lines in the plurality of data lines and the read-out circuit on and off.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Hun SUNG, Jae Hak LEE, Dong Goo KANG, Jae Mock YI
  • Patent number: 9035266
    Abstract: The invention concerns a dosimeter for the determination of an absorbed dose (D) of a radiation field (26), the dosimeter having a dosimeter probe (12), which has (a) a sensor (14), which has a sensor volume that emits electrical charges (Q) when exposed to ionizing radiation, (b) a cable (18) for the transmission of the charges (Q) and (c) an evaluation unit (20), which is designed for the capture of a physical quantity (U), which corresponds to the emitted electrical charge (Q), which is characterized by the fact that the evaluation unit (20) is arranged for (d) the detection of a interval cycle of the radiation field (26), (e) the recording of a measurement number of measurements of a physical quantity (U) corresponding to the electrical charge, which is always read at the same time relative to the interval cycle, so that an initial raw measured value (U1) and at least one second raw measured value (U2) are obtained per interval, and (f) the calculation of a measured value (D) from the at-least two raw mea
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: May 19, 2015
    Assignees: BUNDESREPUBLIK DEUTSCHLAND, VERTRETEN DURCH DAS BUNDESMINISTERIUM FUR WIRTSCHAFT UND TECHNOLOGIE, DIESES VERTRETEN DURCH DEN PRASIDENTEN DER PHYSIKALISCH-TECHNISCHEN BUNDESANSTALT
    Inventors: Jens Illemann, Christoph Makowski
  • Publication number: 20150131783
    Abstract: A radiation detection system comprises at least one detector in which a plurality of detection elements are arranged, wherein each detection element includes a converting portion that converts energy of incident radiations directly into electrical signals and a signal reading portion that reads the electrical signal from the converting portion and outputs the electrical signal, the converting portion including a plurality of protruded portions arranged at intervals, and the plurality of protruded portions are electrically connected to one signal reading portion.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 14, 2015
    Inventor: Genta Sato
  • Patent number: 9030327
    Abstract: A method includes receiving radiation sensor data from two radiation sensors that are positioned separately from each other about a path. Position information identifying a source of radiation as it passes by the two radiation sensors is received. The sensor data from the two radiation sensors is time shifted to correlate the sensor data to the identified source of radiation. The time shifted sensor signals are summed.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: May 12, 2015
    Assignee: Honeywell International Inc.
    Inventors: Edward L. Cochran, Kwong Wing Au
  • Patent number: 9014341
    Abstract: A CT collimator comprising a rotating slot part on a rotation shaft and having a plurality of blades, each blade has a slot of a different width and a radiation beam entering the collimator can only pass via a slot in one of the blades, each edge of each blade slot along a longitudinal direction has a convex curved surface structure, and in a vertical plane along a longitudinal direction, two side edges of the slot are curved, and each blade is arranged to be eccentric to the center of the rotation shaft. A CT system using the CT collimator, the detection area of the radiation rays projected to the radiation detector via the CT collimator can be maintained unchanged by adjusting the rotation angle of the blade, under the circumstance where the focus of the radiation source shifts during a CT scan.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: April 21, 2015
    Assignee: GE Medical Systems Global Technology Company LLC
    Inventors: Xiaoyan Zhang, Jun Guo, Xuyong Yang
  • Patent number: 9012853
    Abstract: A highly scalable platform for radiation measurement data collection with high precision time stamping and time measurements between the elements in the detection array uses IEEE 1588 with or without Synchronous Ethernet (timing over Ethernet) to synchronize the measurements. At a minimum, the system includes at least two radiation detector units, an IEEE 1588 and SyncE enabled Ethernet switch, and a computer for processing. The addition of timing over Ethernet and power over Ethernet (PoE) allows a radiation measurement system to operate with a single Ethernet cable, simplifying deployment of detectors using standardized technology with a multitude of configuration possibilities. This eliminates the need for an additional hardware for the timing measurements which simplifies the detection system, reduces the cost of the deployment, reduces the power consumption of the detection system and reduces the overall size of the system.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: April 21, 2015
    Assignee: FLIR Detection, Inc.
    Inventors: Andrey K. Gueorguiev, Martin F. Ohmes, Jeffrey R. Preston, Leslie D. Hoy, Hartmut Brands
  • Patent number: 9006676
    Abstract: An apparatus for monitoring an ion distribution of a wafer comprises a first sensor and a sensor. The first sensor, the second sensor and the wafer are placed in an effective range of a uniform ion implantation current profile. A controller determines the ion dose of each region of the wafer based upon the detected signal from the first sensor and the second sensor. In addition, the controller adjusts the scanning frequency of an ion beam or the movement speed of the wafer to achieve a uniform ion distribution on the wafer.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: April 14, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun-Lin Chang, Chih-Hong Hwang, Nai-Han Cheng, Chi-Ming Yang, Chin-Hsiang Lin
  • Patent number: 9006675
    Abstract: The present invention provides a radiation detector, a radiographic imaging device, and a radiographic image system that may be easily tested and may precisely detect radiation. Namely, pixels each includes a sensor portion A and a sensor portion B. In imaging pixels, the sensor portion A and the sensor portion B are connected by a connection line, and charges generated in the sensor portion A and in the sensor portion B are read by a TFT switch and output to a signal line. In radiation detection pixels, charges generated in the sensor portion A are read by a TFT switch and output to a signal line. Further, in the radiation detection pixels, the sensor portion B and the signal line are directly connected by a connection line, and the charges generated in the sensor portion B are output to the signal line as they arise.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: April 14, 2015
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihiro Okada
  • Patent number: 9000393
    Abstract: An X-ray imaging apparatus, which acquires an X-ray photographic image of an subject and outputs the X-ray photographic image to a plurality of output apparatuses, determines, as an output region to a first output apparatus, either an extracted irradiated region from an X-ray photographic image or a partial region selected from the X-ray photographic image by an user. When the size of the output region to the first output apparatus is not larger than an image size to be output to a second output apparatus, the output region to the first output apparatus is determined as an output region to the second output apparatus. When the output region to the first output apparatus is larger than the image size, a region corresponding to the image size is extracted from the output region to the first output apparatus as an output region to the second output apparatus.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: April 7, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Takasawa
  • Publication number: 20150090891
    Abstract: An imaging system (100) includes a set of detector modules (108) that detect gamma rays, which have energy in a range of 40 to 140 keV and 511 keV, emitted by a radioisotope in an examination region, wherein 511 keV gamma rays are detected in singles mode in which individual 511 keV gamma rays, and not coincidence pairs of 511 keV gamma rays, are detected, an energy discriminator (132) that bins detected gamma rays into a first energy bin corresponding to 511 keV energy gamma rays and a second energy bin corresponding to 40 to 140 keV energy gamma rays, and a reconstructor (126) that reconstructs the 511 keV energy gamma rays thereby generating a first image of a distribution of a first radionuclide and that reconstructs the gamma rays in the one or more ranges between 40 and 140 keV thereby generating a second image of a distribution of a second radionuclide.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 2, 2015
    Applicant: Koninklijke Philips N.V.
    Inventor: Frank Charles Valentino
  • Publication number: 20150090893
    Abstract: The embodiments relate to a counting digital x-ray detector for recording x-ray images of an object irradiated by x-ray radiation with at least one detector module, which includes a flat direct converter for converting x-ray radiation into an electrical signal and a matrix with a plurality of counting pixel elements, wherein each counting pixel element includes a charge or signal input, a conversion facility for converting the electrical signal into a count signal, a digital counter for detecting and storing the count signal and a control and readout unit, and wherein the x-ray image detector is embodied such that each pixel element of the x-ray image detector is connected to the corresponding electrodes of the detector material of the direct converter via contacts and in this way is embodied switchably.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventor: Martin Spahn
  • Patent number: 8993975
    Abstract: There are provided a gamma ray detecting apparatus, including: a secondary electron emitter causing a Compton scattering reaction with an incident gamma ray to emit secondary electrons in a progress direction of the gamma ray; a first radiation detector provided to be opposed to the secondary electron emitter with respect to an emission progress direction of the secondary electrons and detecting the position and transfer energy of the secondary electron; a second radiation detector provided to be opposed to the first radiation detector with respect to the emission progress direction of the secondary electron and detecting the position and the transfer energy of the secondary electron passing through the first radiation detector; a third radiation detector provided to be opposed to the second radiation detector with respect to the emission progress direction of the secondary electron and detecting residual energy of the secondary electron by absorbing the secondary electron passing through the second radiation
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: March 31, 2015
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Chan-Hyeong Kim, Jin-Hyung Park, Hee Seo
  • Publication number: 20150078525
    Abstract: An X-ray detector has a first detector module, a second detector module and manipulation means. The first detector module includes a first detection region arranged in a first detection plane, the second detector module includes a second detection region arranged in a second detection plane, which is adjacent to the first detection region. The manipulation means is configured to orient the first detection plane of the first detector module and the second detection plane of the second detector module to each other such that a first normal to surface of the first detection plane and a second normal to surface of the second detection plane intersect within a reference region.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 19, 2015
    Inventors: Thomas HOFMANN, Stefan HEBELE, Thomas SCHLECHTER
  • Publication number: 20150069257
    Abstract: Among other things, one or more techniques and/or systems are described for presenting images derived from a photon counting imaging modality. Initially, a first image is derived by binning native projection data in a first manner to create first binned data and generating the first image using the first binned data. A region-of-interest within the object may be identified from the first image, and, based upon the identified region-of-interest, the native projection data may be rebinned in a second, different, manner to create second binned data. Because the second manner of binning the native projection data is different than the first manner, an image resulting from the second binned data may be different than the first image. Moreover, a user interface may be provided for assisting a user in selecting a region-of-interest and/or for specifying desired properties of the second image.
    Type: Application
    Filed: March 30, 2012
    Publication date: March 12, 2015
    Inventor: Guy M. Besson
  • Publication number: 20150069255
    Abstract: Among other things, one or more techniques and/or systems are described for counting detection events on a detector cell of a photon counting detector array. An electronics arrangement of the detector cell comprises a digital discriminator which is configured according to an impulse response of the detector cell or, more particularly, an impulse response of a radiation detection element of the detector cell (e.g., where the radiation detection element is configured to convert energy of the radiation photon into electrical charge). The digital discriminator is configured to analyze a digital representation of a voltage signal of the detector cell and to compare a result of the analysis to one or more metrics derived based upon the impulse response of the detector cell to identify voltage pulses of the voltage signal that are indicative of detection events.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: Analogic Corporation
    Inventors: Douglas Q. Abraham, Basak Ulker Karbeyaz
  • Publication number: 20150071401
    Abstract: CT detector modules are disclosed that include a module frame and a plurality of tileable detector sensors positioned on the module frame. Each of the tileable detector sensors includes an array of detector elements and a mounting structure directly or indirectly coupled to the detector elements to provide for a mounting and alignment of the detector sensor to the module frame. The mounting structure includes an alignment plate positioned generally opposite the array of detector elements, with the alignment plate having alignment pins forming a datum structure to align the detector sensor on the module frame and one or more threaded bosses configured to receive a fastener therein that secures the detector sensor to the module frame. The module frame includes keyed features that receive the alignment pins when the detector sensors are mounted on the module frame, so as to align the detector sensors on the module frame.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: General Electric Company
    Inventors: Joseph James Lacey, Abdelaziz Ikhlef, Baiju Zacharia Babu
  • Patent number: 8975594
    Abstract: A multispectral staring array comprises, amongst other things, at least two sensors where each sensor is adapted to detect an image in a different predetermined spectral sensitivity; a first lens to focus capture spectral bands; a spectral filter between the lens and the sensors to subdivide the incident spectral bands; and a second lens to direct and focus the subdivided incident spectral bands on each of the sensors.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: March 10, 2015
    Assignee: GE Aviation Systems LLC
    Inventors: Thomas Baby Sebastian, Sarah Christine Maas Stotz, Eric Daniel Buehler, Benjamin Thomas Occhipinti
  • Publication number: 20150060686
    Abstract: At least one pair of hodoscope radiation monitors arranged to simultaneously monitor a target region that contains a source of radiation. The hodoscopes are preferably arranged so that their fields of view of the region are approximately orthogonal. The fields of view of the two detectors will overlap in a region that contains the source of radiation. Each of the two detectors will record radiation from the overlap region and, in addition, will record background radiation emanating from other regions within detector fields of view. The present invention provides statistical correlation techniques to estimate the extent to which unusually high radiation originates in the overlap region, irrespective of background in the field-of-view of individual hodoscope detectors. The source of radiation might be spontaneous, might be from an activation process, or might be scattered in from an external beam.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 5, 2015
    Inventor: Alexander DeVolpi
  • Publication number: 20150060681
    Abstract: An imaging apparatus (400) includes a detector array (412) with at least one detector tile (418). The detector tile includes a photosensor array (422) with a two dimensional array of individual photosensitive detector pixels (424) located within a non-photosensitive area (426). The imaging apparatus also includes readout electronics (432) coupled to the photosensor array and including individual readout channel wells (602, 604) corresponding to the individual detector pixels. The imaging apparatus also includes an anti-aliasing filter (800) for a detector pixel that is located in at least one of a region of the photosensor array corresponding to the detector pixel or a region of the readout electronics corresponding to the detector pixel.
    Type: Application
    Filed: April 15, 2013
    Publication date: March 5, 2015
    Inventors: Marc Anthony Chappo, Randall Peter Luhta
  • Publication number: 20150060677
    Abstract: An X-ray detector is disclosed, in particular for a computed tomography system. In an embodiment, the X-ray detector includes a regular arrangement of measuring pixels for covering a measuring surface. A plurality of the measuring pixels of the regular arrangement are constructed as direct converting measuring pixels, and remaining ones of the measuring pixels are constructed as indirect converting measuring pixels.
    Type: Application
    Filed: August 13, 2014
    Publication date: March 5, 2015
    Inventors: Peter HACKENSCHMIED, Christian SCHRÖTER, Matthias STRASSBURG
  • Publication number: 20150041667
    Abstract: An apparatus for characterizing a focused charged beam is provided. The apparatus includes a plurality of parallel conducting channels and at least one current sensing unit configured to measure current across each of the plurality of parallel conducting channels.
    Type: Application
    Filed: April 16, 2013
    Publication date: February 12, 2015
    Inventors: Sudeep Bhattacharjee, Samit Paul