Patents by Inventor Naor Wainer
Naor Wainer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9841510Abstract: The invention relates to a radiation detector (100) and to a method for manufacturing such a detector. In a preferred embodiment, the radiation detector (100) comprises an array of photosensitive pillars (110) that are embedded in a conversion material (120). The photosensitive pillars may particularly be diodes connected at their ends to external circuits (130, 140). The conversion material (120) may particularly comprise a powder of scintillator particles (121) embedded in a matrix of binder.Type: GrantFiled: April 13, 2015Date of Patent: December 12, 2017Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Matthias Simon, Frank Verbakel, Gereon Vogtmeier, Naor Wainer
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Publication number: 20170045630Abstract: The invention relates to a radiation detector (100) and to a method for manufacturing such a detector. In a preferred embodiment, the radiation detector (100) comprises an array of photosensitive pillars (110) that are embedded in a conversion material (120). The photosensitive pillars may particularly be diodes connected at their ends to external circuits (130, 140). The conversion material (120) may particularly comprise a powder of scintillator particles (121) embedded in a matrix of binder.Type: ApplicationFiled: April 13, 2015Publication date: February 16, 2017Inventors: Matthias SIMON, Frank VERBAKEL, Gereon VOGTMEIER, Naor WAINER
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Patent number: 9488738Abstract: A light-reflecting material of a radiation detector, which also comprises photo-detecting elements and imaging elements adjacent to the photo-detecting elements, is provided. Typically, epoxy resin is used as the light-reflecting material. A tough, pliable resin may be used for the photo-detecting elements. This has the advantage of reducing thermal stresses inside the radiation detector, thus reducing the risk of delamination due to e.g. temperature shifts. Moreover, the tough, pliable resin preferably also has a low refractive index, which may increase the scattering co-efficient of the resin as compared to epoxy resin, which has a refractive index of 1.58. The layer thickness of a low-refractive index resin may thereby be reduced as compared to the layer thickness of epoxy resin for a given level of optical crosstalk. Preferable resins are silicon resins and resins of thermoplastic fluoropolymers.Type: GrantFiled: October 29, 2008Date of Patent: November 8, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Simha Levene, Naor Wainer
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Patent number: 9322939Abstract: Low cost large area photodetector arrays are provided. In a first embodiment, the photodetectors comprise an inorganic photoelectric conversion material formed in a single thick layer of material. In a second embodiment, the photodetectors comprise a lamination of several thin layers of an inorganic photoelectric conversion material, the combined thickness of which is large enough to absorb incoming x-rays with a high detector quantum efficiency. In a third embodiment, the photodetectors comprise a lamination of several layers of inorganic or organic photoelectric conversion material, wherein each layer has a composite scintillator coating.Type: GrantFiled: August 5, 2010Date of Patent: April 26, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Simha Levene, Ami Altman, Naor Wainer, Cornelis Reinder Ronda, Eliav Itshak Haskal, Dagobert Michel De Leeuw
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Patent number: 9140808Abstract: 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: GrantFiled: January 30, 2012Date of Patent: September 22, 2015Assignee: Koninklijke Philips N.V.Inventors: Cornelis Reinder Ronda, Simha Levene, Raz Carmi, Naor Wainer, Amir Livne, Roman Shiriaev
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CT detector including multi-layer fluorescent tape scintillator with switchable spectral sensitivity
Patent number: 8981311Abstract: A scintillator element (114) comprising uncured scintillator material (112) is formed and optically cured to generate a cured scintillator element (122, 122?). The uncured scintillator material suitably combines at least a scintillator material powder and an uncured polymeric host. In a reel to reel process, a flexible array of optical detectors is transferred from a source reel (100) to a take-up reel (106) and the uncured scintillator material (112) is disposed on the flexible array and optically cured during said transfer. Such detector layers (31, 32, 33, 34, 35) are stackable to define a multi-layer computed tomography (CT) detector array (20). Detector element channels (50, 50?, 50?) include a preamplifier (52) and switching circuitry (54, 54?, 54?) having a first mode connecting the preamplifier with at least first detector array layers (31, 32) and a second mode connecting the preamplifier with at least second detector array layers (33, 34, 35).Type: GrantFiled: April 25, 2011Date of Patent: March 17, 2015Assignee: Koninklijke Philips N.V.Inventors: Simha Levene, Naor Wainer, Amiaz Altman, Rafael Goshen, Cornelis Reinder Ronda -
Patent number: 8927937Abstract: A detector array (110) includes a detector (112) configured to detect ionizing radiation and output a signal indicative of the detected radiation, wherein the detector at least includes a semiconductor element (118) and an illumination subsystem (120) configured to generate and transfer sub-band-gap illuminating radiation to selectively illuminate only a sub-portion of the semiconductor element in order to produce a spatially patterned illumination distribution inside the element.Type: GrantFiled: April 6, 2012Date of Patent: January 6, 2015Assignee: Koninklijke Philips N.V.Inventors: Alexander Schwarzman, Naor Wainer, Amir Livne
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Publication number: 20140070109Abstract: A detector array (110) includes a detector (112) configured to detect ionizing radiation and output a signal indicative of the detected radiation, wherein the detector at least includes a semiconductor element (118) and an illumination subsystem (120) configured to generate and transfer sub-band-gap illuminating radiation to selectively illuminate only a sub-portion of the semiconductor element in order to produce a spatially patterned illumination distribution inside the element.Type: ApplicationFiled: April 6, 2012Publication date: March 13, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Alexander Schwarzman, Naor Wainer, Amir Livne
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Publication number: 20130327947Abstract: 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: ApplicationFiled: January 30, 2012Publication date: December 12, 2013Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Cornelis Reinder Ronda, Simha Levene, Raz Carmi, Naor Wainer, Amir Livne, Roman Shiriaev
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Patent number: 8585286Abstract: A method includes detecting radiation that traverses a material having a known spectral characteristic with a radiation sensitive detector pixel that outputs a signal indicative of the detected radiation and determining a mapping between the output signal and the spectral characteristic. The method further includes determining an energy of a photon detected by the radiation sensitive detector pixel based on a corresponding output of the radiation sensitive detector pixel and the mapping.Type: GrantFiled: March 20, 2009Date of Patent: November 19, 2013Assignee: Koninklijke Philips N.V.Inventors: Amir Livne, Naor Wainer, Jens-Peter Schlomka, Ewald Roessl, Roland Proksa
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Patent number: 8513612Abstract: An imaging system includes a macro organic photodiode array with rows and columns of printed photodiodes. The array may be bendable for easy manufacture and assembly on a curved support within an imaging system. Two or more layers of photodiodes may be provided for use in a spectral CT imaging system or as slices.Type: GrantFiled: March 15, 2010Date of Patent: August 20, 2013Assignee: Koninklijke Philips N.V.Inventors: Simha Levene, Ami Altman, Naor Wainer, Dagobert M. de Leeuw, Eliav Haskal
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CT DETECTOR INCLUDING MULTI-LAYER FLUORESCENT TAPE SCINTILLATOR WITH SWITCHABLE SPECTRAL SENSITIVITY
Publication number: 20130058452Abstract: A scintillator element (114) comprising uncured scintillator material (112) is formed and optically cured to generate a cured scintillator element (122, 122?). The uncured scintillator material suitably combines at least a scintillator material powder and an uncured polymeric host. In a reel to reel process, a flexible array of optical detectors is transferred from a source reel (100) to a take-up reel (106) and the uncured scintillator material (112) is disposed on the flexible array and optically cured during said transfer. Such detector layers (31, 32, 33, 34, 35) are stackable to define a multi-layer computed tomography (CT) detector array (20). Detector element channels (50, 50?, 50?) include a preamplifier (52) and switching circuitry (54, 54?, 54?) having a first mode connecting the preamplifier with at least first detector array layers (31, 32) and a second mode connecting the preamplifier with at least second detector array layers (33, 34, 35).Type: ApplicationFiled: April 25, 2011Publication date: March 7, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Simha Levene, Naor Wainer, Amiaz Altman, Rafael Goshen, Cornelis Reinder Ronda -
Patent number: 8391439Abstract: A radiation detector (24) includes a two-dimensional array of upper scintillators (30?) which is disposed facing an x-ray source (14) to convert lower energy radiation events into visible light and transmit higher energy radiation. A two-dimensional array of lower scintillators (30B) is disposed adjacent the upper scintillators (30?) distally from the x-ray source (14) to convert the transmitted higher energy radiation into visible light. Upper and lower photodetectors (38?, 30B) are optically coupled to the respective upper and lower scintillators (30?,30B) at an inner side (60) of the scintillators (30?,30B). An optical element (100) is optically coupled with the upper scintillators (30?) to collect and channel the light from the upper scintillators (30?) into corresponding upper photodetectors (38?).Type: GrantFiled: April 6, 2006Date of Patent: March 5, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Simha Levene, Olga Shapiro, Ami Altman, Naor Wainer
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Patent number: 8299440Abstract: A radiation sensitive detector array (112) includes a photo sensor (204) that detects a photon and generates a signal indicative thereof. The radiation sensitive detector array (112) also includes a signal analyzer (214) that energy bins and counts the signal when the signal analyzer (214) is able to identify the signal in the output of the photo sensor (204), and that integrates the output of the photo sensor (204) over an integration period when the signal analyzer (214) is not able to identify the signal in the output of the photo sensor (204).Type: GrantFiled: December 12, 2008Date of Patent: October 30, 2012Assignee: Koninklijke Philips Electronics N.V.Inventor: Naor Wainer
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Publication number: 20120153163Abstract: Low cost large area photodetector arrays are provided. In a first embodiment, the photodetectors comprise an inorganic photoelectric conversion material formed in a single thick layer of material. In a second embodiment, the photodetectors comprise a lamination of several thin layers of an inorganic photoelectric conversion material, the combined thickness of which is large enough to absorb incoming x-rays with a high detector quantum efficiency. In a third embodiment, the photodetectors comprise a lamination of several layers of inorganic or organic photoelectric conversion material, wherein each layer has a composite scintillator coating.Type: ApplicationFiled: August 5, 2010Publication date: June 21, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Simha Levene, Ami Altman, Naor Wainer, Cornelis Reinder Ronda, Eliav Itshak Haskal, Dagobert Michel De Leeuw
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Publication number: 20120037809Abstract: An imaging system includes a macro organic photodiode array with rows and columns of printed photodiodes. The array may be bendable for easy manufacture and assembly on a curved support within an imaging system. Two or more layers of photodiodes may be provided for use in a spectral CT imaging system or as slices.Type: ApplicationFiled: March 15, 2010Publication date: February 16, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V.Inventors: Simha Levene, Ami Altman, Naor Wainer, Dagobert M. de Leeuw, Eliav Haskal
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Patent number: 7968853Abstract: A radiation detector (24) includes a two-dimensional array of upper scintillators (30?) which is disposed facing an x-ray source (14) to convert lower energy radiation into visible light and transmit higher energy radiation. A two-dimensional array of lower scintillators (30B) is disposed adjacent the upper scintillators (30?) distally from the x-ray source (14) to convert the transmitted higher energy radiation into visible light. Respective active areas (94, 96) of each upper and lower photodetector arrays (38?, 38B) are optically coupled to the respective upper and lower scintillators (30?, 30B) at an inner side (60) of the scintillators (30?, 30B) which inner side (60) is generally perpendicular to an axial direction (Z).Type: GrantFiled: April 10, 2006Date of Patent: June 28, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Ami Altman, Olga Shapiro, Simha Levene, Naor Wainer
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Publication number: 20110012014Abstract: A method includes detecting radiation that traverses a material having a known spectral characteristic with a radiation sensitive detector pixel that outputs a signal indicative of the detected radiation and determining a mapping between the output signal and the spectral characteristic. The method further includes determining an energy of a photon detected by the radiation sensitive detector pixel based on a corresponding output of the radiation sensitive detector pixel and the mapping.Type: ApplicationFiled: March 20, 2009Publication date: January 20, 2011Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Amir Livne, Naor Wainer, Jens-Peter Schlomka, Ewald Roessl, Roland Proksa
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Publication number: 20100296625Abstract: The invention relates to a light-reflecting material (240) of a radiation detector (200), which also comprises photo-detecting elements (220) and imaging elements (250) adjacent to the photo-detecting elements. Typically, epoxy resin is used as the light-reflecting material. According to the invention, a tough, pliable resin may be used for the photo-detecting elements. This has the advantage of reducing thermal stresses inside the radiation detector, thus reducing the risk of delamination due to e.g. temperature shifts. Moreover, the tough, pliable resin preferably also has a low refractive index, which may increase the scattering co-efficient of the resin as compared to epoxy resin, which has a refractive index of 1.58. The layer thickness of a low-refractive index resin may thereby be reduced as compared to the layer thickness of epoxy resin for a given level of optical crosstalk. Preferable resins are silicon resins and resins of thermoplastic fluoropolymers.Type: ApplicationFiled: October 29, 2008Publication date: November 25, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Naor Wainer, Simha Levene
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Publication number: 20100246919Abstract: A radiation sensitive detector array (112) includes a photo sensor (204) that detects a photon and generates a signal indicative thereof. The radiation sensitive detector array (112) also includes a signal analyzer (214) that energy bins and counts the signal when the signal analyzer (214) is able to identify the signal in the output of the photo sensor (204), and that integrates the output of the photo sensor (204) over an integration period when the signal analyzer (214) is not able to identify the signal in the output of the photo sensor (204).Type: ApplicationFiled: December 12, 2008Publication date: September 30, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventor: Naor Wainer