Plural Electric Signalling Means Patents (Class 250/366)
  • Publication number: 20140034836
    Abstract: A radiation detection apparatus includes a sensor panel configured to detect light; and a scintillator layer arranged on the sensor panel. The scintillator layer has a scintillator configured to convert radiation into light of a wavelength that is detectable by the sensor panel. The scintillator layer also has particles that have a property of generating a bubble and expanding so as to weaken adhesive force between the sensor panel and the scintillator layer. The scintillator layer also a resin that holds the scintillator and the particles so as to be mixed together. The scintillator layer is adhered to the sensor panel with use of the resin.
    Type: Application
    Filed: July 18, 2013
    Publication date: February 6, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Taiki Takei, Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Kota Nishibe, Shoshiro Saruta, Kazumi Nagano, Satoshi Okada, Yohei Ishida
  • Publication number: 20140029724
    Abstract: An imaging detector (214) includes a scintillator array (216) including a scintillator element (228) and a material (230) and a photosensor array (218) including a detector element (222) having a light sensitive region (224) and a non-sensitive region (226). The light sensitive region is separated from the scintillator element by a gap, the light sensitive region is in one-to-one mechanical alignment with the scintillator element, and the non-sensitive region is in mechanical alignment with the material. The detector further includes structure (234) that includes one or more material free channels. The structure is located between the non-sensitive region and the material and not between the light sensitive region and the scintillator element. An optical adhesive (232) is located in the gap, filling the entire gap, and mechanically and optically coupling the light sensitive region and the scintillator element.
    Type: Application
    Filed: April 5, 2012
    Publication date: January 30, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Randall Peter Luhta, Marc Anthony Chappo, Brian E. Harwood, Rodney Arnold Mattson
  • Publication number: 20140027647
    Abstract: A radiation imaging apparatus includes a radiation image detection unit including a flexible substrate, photoelectric conversion elements arranged on the substrate, and a phosphor member disposed on an upper part of the substrate, a housing accommodating the radiation image detection unit, and a support member having the substrate disposed along a side surface for non-radiation transmission in the housing from a surface for radiation transmission in the housing.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 30, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kazuhiro Matsumoto
  • Publication number: 20140021359
    Abstract: A neutron detector without 3He gas, provided with a translucent type plate neutron scintillator having the structure capable to emit fluorescence from double-sides; the neutron scintillator is composed of ZnS fluorescent substance and a neutron converter which contains 6Li or 10B, and arranged at an angle of 45 degrees from the neutrons which are incident in parallel all together, inside of a cylindrical detector housing with the circular or square section where the specular reflector with the reflectance of 90% or more is arranged internally, and the fluorescence emitted when the neutron enters the scintillator is detected by two photo multipliers arranged on both sides, and signals output from these two photo multipliers are processed to be taken out as a neutron signal.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 23, 2014
    Inventors: Tatsuya NAKAMURA, Masaki KATAGIRI, Masumi EBINE, Atsushi BIRUMACHI, Akira OHZU, Yutaka YORIBAYASHI, Noriaki TSUTSUI
  • Publication number: 20140021360
    Abstract: A radiation detection device including a radiation detection unit, a profile information acquisition unit, a control condition determination unit and a controller. The radiation detection unit converts radiation irradiated from a radiation irradiation device to charges and accumulates the charges. The profile information acquisition unit acquires profile information representing a change per unit time of radiation amounts of the radiation irradiated from the radiation irradiation device. The control condition determination unit determines a control condition of the radiation detection unit on the basis of the profile information acquired by the profile information acquisition unit. The controller controls the radiation detection unit in accordance with the control condition determined by the control condition determination unit.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 23, 2014
    Applicant: FUJIFILM CORPORATION
    Inventor: Yasufumi ODA
  • Publication number: 20140021354
    Abstract: An apparatus and method for channel count reduction in solid-state-based positron emission tomography that multiplexes read-outs from photo-detectors using a sum delay circuit, including a sum channel and a delay-sum channel. The sum channel sums signals from sensors in an array and is digitized to extract the timing and energy information. A delay-sum channel includes a discrete delay line that introduces a known delay after each sensor, creating a time signature for the sensor, followed by a summing circuit that adds the delayed signals. The delay-sum channel is digitized using a high speed counters to extract location information. Start and Stop signals for the counter are derived when the sum channel output and the delay-sum channel output cross a pulse ID threshold, respectively. The pulse ID threshold is chosen to minimize the Compton scatter and not clip the photo-peak events.
    Type: Application
    Filed: July 18, 2012
    Publication date: January 23, 2014
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Daniel GAGNON, Sachin S. Junnarkar
  • Publication number: 20140021358
    Abstract: The invention relates to a radiation dose meter for measuring radiation dose in a strong external magnetic field (100 m T-10 T) by means of charged particles generated in the radiation dose meter, the radiation dose meter provided with an alignment unit capable of auto aligning the radiation dose meter in the external magnetic field so that a path of the said charged particles inside the radiation dose meter is substantially parallel to a direction of the external magnetic field.
    Type: Application
    Filed: August 19, 2011
    Publication date: January 23, 2014
    Applicant: Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO
    Inventors: Fokko Pieter Wieringa, René Kroes, Marcus Benedictus Hoppenbrouwers, Wouter Andries Jonker, Robert Snel
  • Publication number: 20140014845
    Abstract: An image-pickup apparatus including a detector comprising a detecting unit and a reading circuit, the detecting unit including pixels, each of which including a conversion element, the reading circuit which includes a connecting unit that is electrically connected to a signal wire transferring an electric signal and that electrically connects the signal wire to a node, and which performs a reading operation to output the electric signal from the pixel. A control unit controls an operation of the reading circuit, and a sensing unit senses the end of radiation irradiation based on an output of the reading circuit, which is acquired during the period of an accumulation operation of the detector. The control unit starts establishing the electrical connection between the signal wire and the node through the connecting unit based on the sensed irradiation end, and retains the electrical connection until the start of the reading operation.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 16, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Sho Sato, Tadao Endo, Toshio Kameshima, Tomoyuki Yagi, Katsuro Takenaka, Atsushi Iwashita
  • Publication number: 20140014842
    Abstract: A system of the present invention is capable of detecting, imaging and measuring both neutrons and gamma rays. The system has three parallel plates each containing a plurality of detectors. Each plate has different detectors. The first plate has plastic scintillation detectors. The second plate has a plurality of stilbene scintillation detectors having pulse-shape discrimination (PSD) properties. The third plate has a plurality of inorganic detectors. The first plate and the second plate are used in connection to detect, image and measure neutrons. The second plate and the third plate are used in connection to detect, image, and measure gamma rays.
    Type: Application
    Filed: November 2, 2011
    Publication date: January 16, 2014
    Inventor: James M. Ryan
  • Publication number: 20140014843
    Abstract: A radiation detecting panel and a radiographic detector are shown. According to one implementation, a radiation detecting panel includes a device substrate and a scintillator. The device substrate includes a two-dimensional array of photoelectric transducers on a first surface of the device substrate. The scintillator substrate includes a scintillator on a first surface of the scintillator substrate. The scintillator converts radiation to light and irradiates the light onto the photoelectric transducers. The device substrate and the scintillator substrate are bonded together such that the photoelectric transducers face the scintillator. A resin layer disposed between the photoelectric transducers and the scintillator has a glass-transition temperature of 60° C. or higher.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 16, 2014
    Inventors: Kazuya IKEDA, Michihide MURASE
  • Publication number: 20140014844
    Abstract: A radiation detection apparatus includes a scintillator, a photoelectric conversion unit, and a grid for removing scattered radiation. The photoelectric conversion unit includes a plurality of pixels arranged in a two-dimensional array on a substrate. Each pixel is configured to convert visible light output from the scintillator into an electric signal. The grid, the substrate, the photoelectric conversion unit, and the scintillator are disposed in this order from a radiation-incident side of the radiation detection apparatus to an opposite side thereof. In this radiation detection apparatus in which the scintillator is disposed on the side opposite to the radiation-incident side, scattered radiation is effectively removed.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 16, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Minoru Watanabe, Chiori Mochizuki, Keigo Yokoyama, Jun Kawanabe, Kentaro Fujiyoshi, Hiroshi Wayama
  • Patent number: 8624194
    Abstract: A radiation detecting device is manufactured by a method that includes forming a scintillator layer on a substrate carrying a plurality of photodetectors and a plurality of convex patterns each including a plurality of convexities, the plurality of convex patterns coinciding with the respective photodetectors, the scintillator layer being formed in such a manner as to extend over the plurality of convex patterns; and forming a crack in a portion of the scintillator layer that coincides, in a stacking direction, with a gap between adjacent ones of the convex patterns by cooling the substrate carrying the scintillator layer. The plurality of convex patterns satisfy specific conditions.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: January 7, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoko Ueyama, Nobuhiro Yasui, Yoshihiro Ohashi, Toru Den
  • Publication number: 20140001367
    Abstract: A ghost is reduced while improving the sensitivity. A scintillator has a plurality of columnar crystals formed of thallium-activated cesium iodide, and converts X-rays into visible light and emits the visible light from the distal end of the columnar crystal. The photoelectric conversion panel has a plurality of photodiodes formed of amorphous silicon to generate electric charges by detecting the visible light emitted from the scintillator. Assuming that the maximum emission intensity of the scintillator is I1, a wavelength at which the maximum emission intensity is obtained is WP, and the emission intensity at a wavelength of 400 nm is I2, I2/I1?0.1 and 540 nm?WP<570 nm are satisfied.
    Type: Application
    Filed: June 6, 2013
    Publication date: January 2, 2014
    Inventors: Akihiro ANZAI, Munetaka KATO
  • Publication number: 20140001366
    Abstract: There is provided a radiological image detection apparatus having excellent sensitivity. A scintillator has a plurality of columnar crystals formed of thallium-activated cesium iodide, and converts X-rays into visible light and emits the visible light from the distal end of the columnar crystal. A photoelectric conversion panel generates electric charges by detecting the visible light emitted from the scintillator. The molar ratio of thallium to cesium iodide in the scintillator is in a range of 0.1 mol % to 0.55 mol %. The half width of the rocking curve of the (200) plane of the columnar crystal is equal to or less than 3°.
    Type: Application
    Filed: June 6, 2013
    Publication date: January 2, 2014
    Inventors: Yoichi NISHIDA, Yukinori NAKAMURA, Akihiro ANZAI
  • Publication number: 20130341516
    Abstract: A radiation detection apparatus comprises a sensor panel including a plurality of sensor units which detect radiation and are arrayed, each of the plurality of sensor units comprising a pixel array including a plurality of pixels which detect light and are two-dimensionally arranged, a scintillator layer which converts radiation into light, and a first scintillator protective layer disposed to cover the scintillator layer, and the radiation detection apparatus further comprising a second scintillator protective layer disposed to cover the plurality of sensor units.
    Type: Application
    Filed: May 16, 2013
    Publication date: December 26, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yohei Ishida, Satoshi Okada, Kazumi Nagano, Shoshiro Saruta, Keiichi Nomura
  • Publication number: 20130341517
    Abstract: A radiation detection apparatus, comprising a housing including a first plate portion and a second plate portion arranged to face each other, a scintillator configured to convert a radiation into light, supported by a supporting portion arranged in a side of the second plate portion in the housing, a sensor panel including a sensor array in which a plurality of sensors for detecting light are arrayed, interposed between the scintillator and the first plate portion in the housing, and a member interposed between the first plate portion and the sensor panel in the housing, wherein the sensor panel is arranged to position an outer edge of the sensor panel outside an outer edge of the scintillator, and the member is arranged to position an outer edge of the member inside the outer edge of the scintillator.
    Type: Application
    Filed: May 24, 2013
    Publication date: December 26, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Taiki Takei, Kota Nishibe
  • Publication number: 20130334426
    Abstract: A method for locally resolved measurement of a radiation distribution (24) produced using a lithography mask (16) comprises providing a radiation converter (31, 131) having an at least two-dimensional arrangement of converter elements (32, 132) which can respectively be put in an active and a passive state, and are configured to convert incoming radiation in respect of its wavelength in the active state. The method further includes: manipulating the radiation converter (31, 131) several times such that respectively only a fraction of the converter elements (32, 132) adopts the active state, irradiating the radiation converter (31, 131) with the radiation distribution (24) after every manipulation of the radiation converter (31, 131) so that the active converter elements (32, 132) emit wavelength-converted is measuring radiation (34), recording respective places of origin (54) of the measuring radiation at every irradiation with the radiation distribution (24).
    Type: Application
    Filed: August 22, 2013
    Publication date: December 19, 2013
    Applicant: CARL ZEISS SMT GmbH
    Inventor: Rolf FREIMANN
  • Publication number: 20130334428
    Abstract: Methods and systems for signal communication in gamma ray detectors are provided. One gamma ray detector includes a scintillator block having a plurality of scintillator crystals and a plurality of light sensors coupled to the scintillator crystals and having a plurality of microcells. Each of the plurality of light sensors has a first set of signal traces connected to the microcells and a second set of signal traces connected along the first set of signal traces and together forming a signal path to a summing signal trace. Each of the plurality of light sensors also has a pin-out connected to the summing signal trace.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 19, 2013
    Applicant: General Electric Company
    Inventors: Chang Lyong Kim, David Leo McDaniel, James Lindgren Malaney, William Todd Peterson, Gary V. McBroom
  • Publication number: 20130329859
    Abstract: Systems, methods, and devices involving segmented radiation detectors are provided. For example, a segmented radiation detector may include a segmented scintillator and an optical-to-electrical converter. The segmented scintillator may have several segments that convert radiation to light, at least one of which may detect radiation arriving from an azimuthal angle around an axis of the segmented scintillator. The optical-to-electrical converter may be coupled to the segmented scintillator. The optical-to-electrical converter may receive the light from the segments of the segmented scintillator and output respective electrical signals corresponding to the amount of radiation detected by each segment.
    Type: Application
    Filed: October 28, 2011
    Publication date: December 12, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Joel L. Groves, Patrice Ligneul, Bob A. Adolph, Paul Wanjau, Tim Quinlan, Jack Purcell
  • Publication number: 20130327932
    Abstract: Methods and systems for gain calibration of a gamma ray detector are provided. One method includes measuring signals generated by one or more light sensors of a gamma ray detector, generating one or more derived curves using the measured signals as a function of bias voltage and identifying a transition point in the one or more derived curves. The method also includes determining a breakdown voltage of the one or more light sensors using the identified transition point and setting a bias of the one or more light sensors based on the determined breakdown voltage.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: General Electric Company
    Inventors: Chang Lyong Kim, David Leo McDaniel, James Lindgren Malaney, William Todd Peterson, Vi-Hoa Tran, Ashwin Ashok Wagadarikar
  • Publication number: 20130327947
    Abstract: A vertical radiation sensitive detector array (114) includes at least one detector leaf (118). The detector leaf includes a scintillator array (210, 502, 807, 907), including, at least, a top side (212) which receives radiation, a bottom side (218) and a rear side (214) and a photo-sensor circuit board (200, 803, 903), including a photo-sensitive region (202, 508, 803, 903), optically coupled to the rear side of the scintillator array. The detector leaf further includes processing electronics (406) disposed below the scintillator array, a flexible circuit board (220) electrically coupling the photo-sensitive region and the processing electronics, and a radiation shield (236) disposed below the bottom of the scintillator array, between the scintillator and the processing electronics, thereby shielding the processing electronics from residual radiation passing through the scintillator array. Some embodiments incorporate rare earth iodides such as SrI 2 (Eu).
    Type: Application
    Filed: January 30, 2012
    Publication date: December 12, 2013
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Cornelis Reinder Ronda, Simha Levene, Raz Carmi, Naor Wainer, Amir Livne, Roman Shiriaev
  • Publication number: 20130320221
    Abstract: Certain embodiments described herein are directed to devices and systems that can be used for direct and indirect detection of radiation such as X-rays. In certain examples, the device can include a modulator optically coupled to a sensor. In some examples, the modulator can be configured to switch between different states to provide an imaging signal in one state and a dosimetry signal in another state.
    Type: Application
    Filed: April 1, 2013
    Publication date: December 5, 2013
    Applicant: PERKINELMER HOLDINGS, INC.
    Inventor: Perkinelmer Holdings, Inc.
  • Publication number: 20130320222
    Abstract: One or more techniques and/or systems described herein provide for a detector array having an effective size that is larger than its actual size of its elements, thus reducing costs by reducing materials required. In one embodiment, one or more channels of the detector array are removed (e.g., and filled with a radiation absorbing material) to create what may be referred to as a sparse array. In another embodiment, one or more channels of a detector array comprise a detection portion and a dead space (e.g., filled with a radiation absorbing material). In yet another embodiment, one or more channels of a detector array comprise light focusing mechanisms configured to focus light from a scintillator portion of an indirect conversion detector array to a photodetector portion of the detector array, where a detection surface area of the photodetector is less than a detection surface area of the scintillator.
    Type: Application
    Filed: February 17, 2011
    Publication date: December 5, 2013
    Inventors: Daniel Abenaim, Steve Urchuk, Ram Naidu, Ruvin Deych
  • Publication number: 20130320220
    Abstract: A scintillator appliance coupled to a camera aperture of a hand-held electronic device forms a radiation detector. The scintillator appliance includes a phosphor screen layer capable of producing visible light detectable by the digital camera sensor of the hand-held electronic device upon exposure to at least one type of radiation and a backer layer permitting passage of the radiation and prohibiting passage of visible light detectable by the digital camera sensor. In some embodiments, the scintillator appliance includes a filter layer between the phosphor screen layer and the backer layer. The filter layer includes at least one filter material capable of selectively filtering radiation based on at least one radiation feature. In some embodiments, the hand-held electronic device is a smartphone. An app on the smartphone preferably converts the detected visible light into a radiation dosage.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 5, 2013
    Inventor: Michelle Donowsky
  • Publication number: 20130322598
    Abstract: A radiation detection apparatus comprising a sensor panel in which a plurality of sensors for detecting light are arranged, and a scintillator layer containing scintillator particles for converting an incident radiation into light, and an adhesive resin which has an adherence property and bonds the scintillator particles, wherein the scintillator layer is adhered to the sensor panel by the adhesive resin, a modulus of elasticity in tensile of the adhesive resin is higher than 0.7 GPa and lower than 3.5 GPa, and a volume ratio of the adhesive resin to the scintillator particles is not lower than 1% and not higher than 5%.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 5, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shoshiro Saruta, Yoshihiro Ogawa, Akiya Nakayama, Masayoshi Tokumoto, Yoshito Sasaki, Satoshi Okada, Satoru Sawada
  • Patent number: 8598532
    Abstract: An apparatus comprises a plurality of radiation conversion elements (32) that convert radiation to light, and a reflector layer (34) disposed around the plurality of radiation conversion elements. The plurality of radiation conversion elements may consist of two radiation conversion elements and the reflector layer is wrapped around the two radiation conversion elements with ends (40, 42) of the reflector layer tucked between the two radiation conversion elements. The reflector layer (34) may include a light reflective layer (50) having reflectance greater than 90% disposed adjacent to the radiation conversion elements when the reflector layer (34) is disposed around the plurality of radiation conversion elements, and a light barrier layer (52).
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: December 3, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Steven E. Cooke, Andreas Thon
  • Publication number: 20130313439
    Abstract: The present invention provides a radiation detecting element and a radiographic imaging device that may reliably detect irradiation of radiation even when a region where radiation is irradiated is set narrowly. Namely, the present invention provides a radiation detection element and a radiographic imaging apparatus, in which radiographic imaging pixels and radiation detection pixels are provided at intersecting portions of scan lines and signal lines.
    Type: Application
    Filed: August 5, 2013
    Publication date: November 28, 2013
    Applicant: FUJIFILM Corporation
    Inventor: Yoshihiro OKADA
  • Publication number: 20130313438
    Abstract: A scintillator includes a plurality of columnar crystals. A surface protection film is made of poly-para-xylyene and covers a surface of the scintillator, and the front ends of the columnar crystals penetrate thereinto. A photoelectric conversion panel includes a glass substrate and an element unit formed on the glass substrate. The element unit includes a plurality of pixels, is disposed opposite to the front ends of the columnar crystals, and detects visible light which is emitted from the front ends and is transmitted through the surface protection film in a light receiving region of each pixel so as to be converted into electric charge. To improve an SN ratio, a penetration amount P of the front end into the surface protection film and an area A of the light receiving region of each pixel are set to satisfy a relationship of 0 m?1<P/A?1.4×103 m?1.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 28, 2013
    Applicant: FUJIFILM Corporation
    Inventors: Munetaka KATO, Shinichiro SONODA, Seiji YAMASHITA
  • Publication number: 20130306875
    Abstract: A tiled imager panel is disclosed. In certain embodiments, the tiled imager panel is formed from separate imager chips that are mechanically tiled together so as to minimize the gap between the tiled imager chips. In addition, in certain embodiments, a scintillator material associated with the tiled imager panel is in a hermetically sealed environment so as to be protected from moisture.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 21, 2013
    Applicant: General Electric Company
    Inventor: Ching-Yeu Wei
  • Publication number: 20130306876
    Abstract: Provided is a radiation detector that prevents a decline in detection efficiency as well as having excellent temporal characteristics. The radiation detector 1, which detects a radiation, includes a scintillator array 10 having a plurality of scintillator cells 11, a photodetector array 20 having a plurality of photodetectors 21, and a photodetector array 30 having a plurality of photodetectors 31. The plurality of photodetectors 21 and the plurality of photodetectors 31 are solid-state photodetectors that can transmit a gamma ray G1, G2. The scintillator cell 11 is separated into a plurality of light emitting regions 11a, 11b by a reflecting region 12, and the reflecting region 12 extends between the incident surface 10a side and the back surface 10b side along a surface SP that is inclined with respect to the incident surface 10a and the back surface 10b.
    Type: Application
    Filed: November 25, 2011
    Publication date: November 21, 2013
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventor: Hiroshi Uchida
  • Patent number: 8586933
    Abstract: A radiation-sensitive detector (120) includes a scintillator array (124) coupled with a photosensor array (140) via an adhesive laminate (144). The photosensor (140) has a plurality of dixels (136). The adhesive laminate (144) includes a material free region that extends through the adhesive laminate (144) from the scintillator array (124) to the photosensor array (140) and that is located between a pair of adjacent dixels (136).
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: November 19, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Simha Levene, Gerardus F. C. M. Lijten
  • Publication number: 20130299709
    Abstract: A method and apparatus for detecting an isotope. embodiments can detect radioactive isotopes. Embodiments can utilize a detector that incorporates at least two sub-detectors. Each sub-detector can receive energy from an isotope and create a signal corresponding to the received energy. Each sub-detector can incorporate a detector element, such as a detector element incorporating one or more diodes, a detector element incorporating a crystal, a detector element incorporating a solid-state device, or a detector element incorporating a scintillator. The sub-detectors can be configured such that for each isotope to be detected at least two of the sub-detectors produce different output signals, or readings. In an embodiment, each sub-detector is configured such that when there are at least two sub-detectors exposed to the isotope each of the corresponding readings from the sub-detectors are different from each of the other readings.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 14, 2013
    Applicant: H. LEE MOFFITT CANCER CENTER & RESEARCH INSTITUTE
    Inventor: H. LEE MOFFITT CANCER CENTER & RESEARCH INSTITUTE
  • Publication number: 20130299710
    Abstract: A radiation detector comprises a scintillator 2A having a first end face 11, a second end face 13 disposed on a side opposite from the first end face 11, and a plurality of light-scattering surfaces 21 formed with an interval therebetween along a first direction P from the first end face 11 side to the second end face 13 side; a first photodetector 12 optically coupled to the first end face 11; and a second photodetector 14 optically coupled to the second end face 13. The light-scattering surfaces 21 are formed so as to intersect the first direction P. The light-scattering surfaces 21 include modified regions 21R formed by irradiating the inside of the scintillator 2A with laser light.
    Type: Application
    Filed: January 13, 2012
    Publication date: November 14, 2013
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroshi Uchida, Takaji Yamashita
  • Publication number: 20130299706
    Abstract: Provided is an analysis apparatus for a high energy particle and an analysis method for a high energy particle. The analysis apparatus for the high energy particle includes a scintillator generating photons with each unique wavelength by the impinging with a plurality of kinds of accelerated high energy particles, a parallel beam converting unit making the photons proceed in parallel to one another, a diffraction grating panel making the photons proceeding in parallel to one another enter at a certain angle, and refracting the photons at different angles depending on each unique wavelength, and a plurality of sensing units arranged on positions where the photons refracted at different angles from the diffraction grating panel reach in a state of being spatially separated, and detecting each of the photons.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 14, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Moon Youn JUNG, Nam Soo MYUNG, Dong-Ho SHIN, Hwang Woon LEE, Dong Hoon SONG, Seunghwan KIM
  • Publication number: 20130292574
    Abstract: An imaging system (100) includes a radiation sensitive detector array (110). The detector array includes at least two scintillator array layers (116). The detector array further includes at least two corresponding photosensor array layers (114). At least one of the at least two photosensor array layers is located between the at least two scintillator array layers in a direction of incoming radiation. The at least one of the at least two photosensor array layers has a thickness that is less than thirty microns.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 7, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: SIMHA LEVENE, NICOLAAS JOHANNES ANTHONIUS VAN VEEN, AMIAZ ALTMAN, IGOR UMAN, RAFAEL GOSHEN
  • Publication number: 20130292575
    Abstract: An imaging detector includes processing electronics with a thermal coefficient about equal to a negative of a summation of thermal coefficients of a photosensor array and a scintillator array of the detector. In another instance, the imaging detector includes an A/D converter that alternately converts first charge corresponding to impinging radiation into a first signal and second charge corresponding to decaying charge into a second signal and a logic unit that corrects the first signal based on the second signal. In another instance, the imaging detector includes an A/D converter, an integrator offset voltage signal determiner, and a logic unit, wherein the determiner induces an electrical current via an offset voltage, the A/D converter measures the current, and the logic unit calculates a resistance of the photosensor array based on the reference voltage and the measured current.
    Type: Application
    Filed: July 11, 2013
    Publication date: November 7, 2013
    Inventors: Marc CHAPPO, Randall P. LUHTA, Christopher J. VRETTOS, Brian E. HARWOOD
  • Patent number: 8575750
    Abstract: A radiation detector made of High Purity Germanium (HPGe) has been specially machined to be this invented multilayer Inter-Coaxial configuration. With this special configuration, extra large volume HPGe detectors of diameters to be 6 inches, 9 inches, and even 12 inches, can be produced with current achievable HPGe crystal purity and quality, in which the entire detector crystal will be depleted and properly over biased for effective photo-induced signal collection with just less than 5000V bias applied. This invention makes extra large efficiency of 200%, 300%, and maybe even higher than 500% possible with HPGe gamma ray detectors with reasonable great resolution performances procurable based on current HPGe crystal supply capability. The invention could also be applied to any other kind of semiconductor materials if any of them could be purified enough for this application in the future.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: November 5, 2013
    Inventors: Yongdong Zhou, Xiao Zhou
  • Publication number: 20130284937
    Abstract: The present invention provides a radiation detecting element and a radiographic imaging device that may reliably detect radiation even when a region where radiation is irradiated is set narrowly. Namely, in the radiation detecting element and the radiographic imaging device of the present invention, plural pixels including radiographic imaging pixels and plural radiation detection pixels are disposed in a matrix in a detection region that detects radiation.
    Type: Application
    Filed: June 24, 2013
    Publication date: October 31, 2013
    Inventor: Yoshihiro OKADA
  • Publication number: 20130277564
    Abstract: A cell for a silicon based photoelectric multiplier may comprise a substrate of a second conductivity type, a first layer of a first conductivity type, and/or a second layer of the second conductivity type formed on the first layer. The first layer and the second layer may form a first p-n junction, and the substrate may be configured such that in operation of the photoelectric multiplier from a quantity of light propagating towards a back side or side walls of the photoelectric multiplier, a negligible portion returns to a front side of the photoelectric multiplier.
    Type: Application
    Filed: June 21, 2013
    Publication date: October 24, 2013
    Inventors: Masahiro Teshima, Razmik Mirzoyan, Boris Anatolievich Dolgoshein, Pavel Zhorzhevich Buzhan, Alexey Anatolievich Stifutkin
  • Publication number: 20130277563
    Abstract: A radiation detector system/method implementing a corrected energy response detector is disclosed. The system incorporates charged (typically tungsten impregnated) injection molded plastic that may be formed into arbitrary detector configurations to affect radiation detection and dose rate functionality at a drastically reduced cost compared to the prior art, while simultaneously permitting the radiation detectors to compensate for radiation intensity and provide accurate radiation dose rate measurements. Various preferred system embodiments include configurations in which the energy response of the detector is nominally isotropic, allowing the detector to be utilized within a wide range of application orientations. The method incorporates utilization of a radiation detector so configured to compensate for radiation counts and generate accurate radiation dosing rate measurements.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 24, 2013
    Inventor: Olivier Gaëtan Giarmana
  • Publication number: 20130270443
    Abstract: Scintillator compositions are provided which include a solvent or matrix containing a fluorophore having the formula (I) and/or a fluorophore having the formula (II), wherein R1 and R2, being identical or different, are independently chosen from the group consisting of hydrogen, halogen, alkyl which optionally contains one or more heteroatoms, alkoxy, aryl and alkyne with an aryl end group; R3 is chosen from the group consisting of hydrogen, alkyl which optionally contains one or more heteroatoms, aryl, heterocycle, ether and ester; R4 and R5, being identical or different, are independently chosen from the group consisting of hydrogen, alkyl which optionally contains one or more heteroatoms, aryl, heterocycle, ether and ester, whereby the R4 and R5 groups are optionally combined to one cyclic structure; and R6, if present, is chosen from the group consisting of hydrogen, aryl and alkyl.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 17, 2013
    Applicant: STICHTING INCAS3
    Inventors: Peter Dijkstra, Heinrich Johannes Wörtche
  • Patent number: 8558183
    Abstract: A radiological image conversion panel includes: a scintillator made of a phosphor which emits fluorescence when exposed to radiation, in which a fluorescence emitting surface of the scintillator is bonded to a sensor panel having a pixel array detecting the fluorescence generated at the scintillator, through an adhesive layer, the scintillator includes a group of columnar crystals which are obtained by growing crystal of the phosphor into columnar shape, the fluorescence emitting surface is configured by a set of tip parts of the columnar crystals, at least edge portions of the fluorescence emitting surface are flattened by filling between the group of columnar crystals with filler, and the filling depth of the filler at a center portion of the fluorescence emitting surface is smaller than that at the edge portions of the fluorescence emitting surface.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: October 15, 2013
    Assignee: Fujifilm Corporation
    Inventor: Haruyasu Nakatsugawa
  • Publication number: 20130264483
    Abstract: Among other things, one or more tiles for an indirect-conversation radiation detector array are provided herein. Respective tiles comprise a detector sub-assembly and an electronic sub-assembly, which are operably coupled together, yet selectively removable, via a connection interface. When an electronic sub-assembly portion of a tile, which comprises a signal acquisition system (e.g., an integrated circuit, such as an application specific integrated circuit (ASIC)), functions improperly, the electronic sub-assembly portion of the tile may be selectively removed for repair/replacement without removing and/or replacing the detector sub-assembly (e.g., which may be much more costly to replace). Similarly, when the detector sub-assembly portion of a tile functions improperly, the detector sub-assembly portion of the tile may be selectively removed for repair/replacement without removing and/or replacing the electronic sub-assembly portion of the tile (e.g.
    Type: Application
    Filed: April 5, 2012
    Publication date: October 10, 2013
    Applicant: Analogic Corporation
    Inventors: Daniel Abenaim, Martin Choquette, Lane Howitt
  • Patent number: 8552390
    Abstract: In an X-ray line sensor 1, a scintillator layer 24 that absorbs X-rays in a low-energy range and emits light and a scintillator layer 26 that absorbs X-rays in a high-energy range and emits light are brought in contact with each other, and further, the thickness of the scintillator layer 24 on the front side is thinner than that of the scintillator layer 26 on the rear side. These make the amount of mismatch small between a light emitting position P1 in the scintillator layer 24 and a light emitting position P2 in the scintillator layer 26 to X-rays in the low-energy range and X-rays in the high-energy range entered at the same angle from the front side, so that at this time, light emitted by the scintillator layer 24 and light emitted by the scintillator layer 26 are detected by a photo-detecting section 16 and a photo-detecting section 23 facing each other.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: October 8, 2013
    Assignee: Hamamatsu Photonics K. K.
    Inventor: Shinji Takihi
  • Publication number: 20130256537
    Abstract: When constructing a nuclear detector module in a gantry, a plurality of overlapping light guide modules (10) are mounted to the gantry in a spaced-apart fashion, and a plurality of underlapping light guide modules (12) are mounted in between each pair of overlapping light guide modules (10). Each of the underlapping modules and the overlapping modules includes a scintillation crystal array (16) on an interior surface thereof, and a plurality of PMTs on an exterior surface thereof. Overlapping modules (10) have overlapping structures (22) that interface with underlapping structures (18) on the underlapping modules (12) and thereby eliminate a seam directly beneath PMTs that overlap the crystal arrays of both an overlapping module and an underlapping module. Optical grease is used to form a resilient grease coupling and reduce light scatter between the underlapping and overlapping modules.
    Type: Application
    Filed: November 18, 2011
    Publication date: October 3, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Thomas Leroy Laurence, Jinling Liu, Steven E. Cooke, Steven John Plummer
  • Publication number: 20130256538
    Abstract: The invention relates to a radiation detector (100) comprising a scintillator group with for example two scintillator elements (120a, 120b) for converting incident primary photons (X, X?) into secondary photons (?, ??) according to a characteristic emission spectrum. Moreover, the detector comprises at least two photodetectors (120a, 120b) for converting said secondary photons into electrical signals, wherein said photodetectors have different absorption spectra and can be read out separately. According to a preferred embodiment of the invention, the photodetectors are organic photodetectors (120a, 120b). The scintillator elements (120a, 120b) and the photodetectors are preferably arranged in a stack one behind the other. Due to the at least two photodetectors (120a, 120b), additional information about incident primary radiation (X, X?) can be collected.
    Type: Application
    Filed: December 12, 2011
    Publication date: October 3, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Gereon Vogtmeier
  • Publication number: 20130248724
    Abstract: A radiation detection apparatus according to an embodiment includes: a scintillator including a fluorescent material to convert radiation to visible radiation photon; a photon detection device array having a plurality of cells each of which includes a photon detection device to detect visible radiation photon emitted from a fluorescent material in the scintillator and convert the visible radiation photon to an electric signal; and a plurality of lenses provided on cells respectively in association with the cells to cause the visible radiation photon to be incident on the photon detection device in an associated cell.
    Type: Application
    Filed: December 13, 2012
    Publication date: September 26, 2013
    Inventors: Go KAWATA, Hideyuki Funaki, Honam Kwon, Risako Ueno, Kazuhiro Suzuki
  • Publication number: 20130248723
    Abstract: A radiation detector includes a conversion element that converts an incoming radiation beam into electrical signals, which in turn can be used to generate data about the radiation beam. The conversion element may include, for example, a scintillator that converts the radiation beam into light, and a sensor that generates the signals in response to the light. The conversion element can be used in different schemes or data collection modes. For instance, the conversion element can be oriented normal to the radiation beam or transverse to the radiation beam. In either of these orientations, for example, the detector can be used in an integrating mode or in a counting mode.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: Varian Medical Systems, Inc.
    Inventors: Gary VIRSHUP, Edward SEPPI, James CLAYTON, Edward SHAPIRO
  • Publication number: 20130243155
    Abstract: An X-ray detecting device includes a lower case, a driving circuit substrate on the lower case, an X-ray detection panel connected with the driving circuit substrate, the X-ray detection panel being adapted to detect X-rays applied from the outside by converting the X-rays into electricity, a touch panel on the X-ray detection panel, and an upper case on the touch panel. The driving circuit substrate is provided with a driving circuit. The driving circuit is electrically connected with the X-ray detection panel and the touch panel and is adapted to control the driving of the X-ray detection panel and the touch panel.
    Type: Application
    Filed: August 16, 2012
    Publication date: September 19, 2013
    Inventor: Jea Eun RYU
  • Patent number: 8536534
    Abstract: The present invention provides a radiographic imaging including, provided at an insulating substrate, sensor portions for radiation detection that generate charges due to receive radiation or light converted from radiation, first signal lines that are connected to the sensor portions for radiation detection and through which flow electric signals that correspond to the charges generated at the sensor portions for radiation detection, and second signal lines having a substantially same wiring pattern as the first signal lines. Detection of radiation is carried out on the basis of a difference between an electric signal flowing through the first signal line and an electric signal flowing through the second signal line, or a difference between values of digital data obtained by digitally converting an electric signal flowing through the first signal line and an electric signal flowing through the second signal line, respectively.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: September 17, 2013
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihiro Okada