Patents by Inventor Tsahi Gozani

Tsahi Gozani 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).

  • Patent number: 9329285
    Abstract: The present invention provides a gamma-neutron detector based on mixtures of thermal neutron absorbers that produce heavy-particle emission following thermal capture. In one configuration, B-10 based detector is used in a parallel electrode plate geometry that integrates neutron moderating sheets, such as polyethylene, on the back of the electrode plates to thermalize the neutrons and then detect them with high efficiency. The moderator can also be replaced with plastic scintillator sheets viewed with a large area photomultiplier tube to detect gamma-rays as well. The detector can be used in several scanning configurations including portal, drive-through, drive-by, handheld and backpack, etc.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: May 3, 2016
    Assignee: Rapiscan Systems, Inc.
    Inventors: Tsahi Gozani, Michael Joseph King, Donald Bennett Hilliard, Joseph Bendahan, William Gerhardus Johannes Langeveld
  • Publication number: 20160091618
    Abstract: The present invention provides a gamma-neutron detector based on mixtures of thermal neutron absorbers that produce heavy-particle emission following thermal capture. In one configuration, B-10 based detector is used in a parallel electrode plate geometry that integrates neutron moderating sheets, such as polyethylene, on the back of the electrode plates to thermalize the neutrons and then detect them with high efficiency. The moderator can also be replaced with plastic scintillator sheets viewed with a large area photomultiplier tube to detect gamma-rays as well. The detector can be used in several scanning configurations including portal, drive-through, drive-by, handheld and backpack, etc.
    Type: Application
    Filed: January 14, 2015
    Publication date: March 31, 2016
    Inventors: Tsahi Gozani, Michael Joseph King, Donald Bennett Hilliard, Joseph Bendahan
  • Patent number: 9224573
    Abstract: The invention provides an X-ray source having a generator for generating an electron beam, an accelerator for accelerating the generated electron beam in a desired direction, one or more magnetic elements for transporting portions of the electron beam in a more than one desired direction, and a shaped target made from a material having an atomic number lying within a predetermined range of values, the transported parts of the electron beam producing a fan beam of X rays upon striking the shaped target.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: December 29, 2015
    Assignee: Rapiscan Systems, Inc.
    Inventors: Willem Gerhardus Johannes Langeveld, Tsahi Gozani, Joseph Bendahan
  • Patent number: 9218933
    Abstract: An inspection system for scanning cargo and vehicles is described which employs an X-ray source that includes an electron beam generator, for generating an electron beam; an accelerator for accelerating said electron beam in a first direction; and, a first set of magnetic elements for transporting said electron beam into a magnetic field created by a second set of magnetic elements, wherein the magnetic field created by said second set of magnetic elements causes said electron beam to strike a target such that the target substantially only generates X-rays focused toward a high density section in the scanned object, which is estimated in a second pulse using image data captured by a detector array in a first pulse. The electron beam direction is optimized by said X-ray source during said second pulse to focus X-rays towards said high density section based on said image data in said first pulse.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: December 22, 2015
    Assignee: Rapidscan Systems, Inc.
    Inventors: Willem Gerhardus Johannes Langeveld, Joseph Bendahan, Tsahi Gozani, Michael King, Dan Strellis, Edward Franco, Krystal R. Alfonso
  • Patent number: 9207195
    Abstract: The application discloses systems and methods for X-ray scanning for identifying material composition of an object being scanned. The system includes at least one X-ray source for projecting an X-ray beam on the object, where at least a portion of the projected X-ray beam is transmitted through the object, and an array of detectors for measuring energy spectra of the transmitted X-rays. The measured energy spectra are used to determine atomic number of the object for identifying the material composition of the object. The X-ray scanning system may also have an array of collimated high energy backscattered X-ray detectors for measuring the energy spectrum of X-rays scattered by the object at an angle greater than 90 degrees, where the measured energy spectrum is used in conjunction with the transmission energy spectrum to determine atomic numbers of the object for identifying the material composition of the object.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: December 8, 2015
    Assignee: Rapiscan Systems, Inc.
    Inventors: Tsahi Gozani, Joseph Bendahan, Craig Matthew Brown, Willem G. J. Langevel, John David Stevenson
  • Publication number: 20150325401
    Abstract: An inspection system for scanning cargo and vehicles is described which employs an X-ray source that includes an electron beam generator, for generating an electron beam; an accelerator for accelerating said electron beam in a first direction; and, a first set of magnetic elements for transporting said electron beam into a magnetic field created by a second set of magnetic elements, wherein the magnetic field created by said second set of magnetic elements causes said electron beam to strike a target such that the target substantially only generates X-rays focused toward a high density section in the scanned object, which is estimated in a second pulse using image data captured by a detector array in a first pulse. The electron beam direction is optimized by said X-ray source during said second pulse to focus X-rays towards said high density section based on said image data in said first pulse.
    Type: Application
    Filed: September 19, 2014
    Publication date: November 12, 2015
    Inventors: Willem Gerhardus Johannes Langeveld, Joseph Bendahan, Tsahi Gozani, Michael King, Dan Strellis, Edward Franco, Krystal R. Alfonso
  • Patent number: 8963094
    Abstract: The present invention provides a gamma-neutron detector based on mixtures of thermal neutron absorbers that produce heavy-particle emission following thermal capture. In one configuration, B-10 based detector is used in a parallel electrode plate geometry that integrates neutron moderating sheets, such as polyethylene, on the back of the electrode plates to thermalize the neutrons and then detect them with high efficiency. The moderator can also be replaced with plastic scintillator sheets viewed with a large area photomultiplier tube to detect gamma-rays as well. The detector can be used in several scanning configurations including portal, drive-through, drive-by, handheld and backpack, etc.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: February 24, 2015
    Assignee: Rapiscan Systems, Inc.
    Inventors: Tsahi Gozani, Michael Joseph King, Donald Bennett Hilliard, Joseph Bendahan
  • Publication number: 20140341341
    Abstract: The application discloses systems and methods for X-ray scanning for identifying material composition of an object being scanned. The system includes at least one X-ray source for projecting an X-ray beam on the object, where at least a portion of the projected X-ray beam is transmitted through the object, and an array of detectors for measuring energy spectra of the transmitted X-rays. The measured energy spectra are used to determine atomic number of the object for identifying the material composition of the object. The X-ray scanning system may also have an array of collimated high energy backscattered X-ray detectors for measuring the energy spectrum of X-rays scattered by the object at an angle greater than 90 degrees, where the measured energy spectrum is used in conjunction with the transmission energy spectrum to determine atomic numbers of the object for identifying the material composition of the object.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 20, 2014
    Applicant: Rapiscan Systems, Inc.
    Inventors: Tsahi Gozani, Joseph Bendahan, Craig Matthew Brown, Willem G. J. Langevel, John David Stevenson
  • Publication number: 20140321588
    Abstract: The present specification discloses methods for inspecting an object. The method includes scanning an object in a two-step process. In the primary scan, a truck or cargo container (container) is completely scanned with a fan beam radiation, the transmitted radiation is measured with an array of detectors, and the transmission information and optionally the fission signatures are analyzed to determine the presence of high-density, high-Z and fissionable materials. If the container alarms in one or more areas, the areas are subjected to a secondary scan. This is done by precisely repositioning the container to the location of the suspect areas, adjusting the scanning system to focus on the suspect areas, performing a stationary irradiation of the areas, and analyzing the measured feature signatures to clear or confirm the presence of SNM.
    Type: Application
    Filed: May 9, 2014
    Publication date: October 30, 2014
    Applicant: Rapiscan Systems, Inc.
    Inventors: Tsahi Gozani, Joseph Bendahan, Michael Joseph King, Timothy John Shaw, John David Stevenson
  • Patent number: 8750454
    Abstract: The application discloses systems and methods for X-ray scanning for identifying material composition of an object being scanned. The system includes at least one X-ray source for projecting an X-ray beam on the object, where at least a portion of the projected X-ray beam is transmitted through the object, and an array of detectors for measuring energy spectra of the transmitted X-rays. The measured energy spectra are used to determine atomic number of the object for identifying the material composition of the object. The X-ray scanning system may also have an array of collimated high energy backscattered X-ray detectors for measuring the energy spectrum of X-rays scattered by the object at an angle greater than 90 degrees, where the measured energy spectrum is used in conjunction with the transmission energy spectrum to determine atomic numbers of the object for identifying the material composition of the object.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: June 10, 2014
    Assignee: Rapiscan Systems, Inc.
    Inventors: Tsahi Gozani, Joseph Bendahan, Craig Mathew Brown, Willem Gerhardus Johannes Langeveld, John David Stevenson
  • Publication number: 20120321049
    Abstract: The invention provides an X-ray source having a generator for generating an electron beam, an accelerator for accelerating the generated electron beam in a desired direction, one or more magnetic elements for transporting portions of the electron beam in a more than one desired direction, and a shaped target made from a material having an atomic number lying within a predetermined range of values, the transported parts of the electron beam producing a fan beam of X rays upon striking the shaped target.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 20, 2012
    Inventors: Willem Gerhardus Johanne Langeveld, Tsahi Gozani, Joseph Bendahan
  • Publication number: 20120155592
    Abstract: The present specification discloses a system for detecting nuclear material based on at least one source of probing radiation and the radiation signatures generated from interrogating an object under inspection. In addition, the present specification describes a threshold-activation detector capable of detecting prompt neutrons, via the activation, after the source's blinding radiation has stopped. The threshold-activation detector can be manufactured from liquid fluorocarbons that allow for the detection of beta radiation and gamma rays.
    Type: Application
    Filed: February 25, 2011
    Publication date: June 21, 2012
    Inventors: Tsahi Gozani, Michael Joseph King, Timothy John Shaw, John David Stevenson
  • Publication number: 20110235777
    Abstract: The application discloses systems and methods for X-ray scanning for identifying material composition of an object being scanned. The system includes at least one X-ray source for projecting an X-ray beam on the object, where at least a portion of the projected X-ray beam is transmitted through the object, and an array of detectors for measuring energy spectra of the transmitted X-rays. The measured energy spectra are used to determine atomic number of the object for identifying the material composition of the object. The X-ray scanning system may also have an array of collimated high energy backscattered X-ray detectors for measuring the energy spectrum of X-rays scattered by the object at an angle greater than 90 degrees, where the measured energy spectrum is used in conjunction with the transmission energy spectrum to determine atomic numbers of the object for identifying the material composition of the object.
    Type: Application
    Filed: February 23, 2011
    Publication date: September 29, 2011
    Inventors: Tsahi Gozani, Joseph Bendahan, Craig Mathew Brown, Willem Gerhardus Johannes Langeveld, John David Stevenson
  • Patent number: 5388128
    Abstract: A detector structure adjacent an opening in a cavity structure for detecting explosives in objects within such opening including a plurality of thin nonchlorinated hydrogenous wall members forming a passageway to define such opening. A source of high energy neutrons located adjacent the passageway to direct neutrons into the passageway. A premoderator formed by nonchlorinated hydrocarbon material surrounding the source of high energy neutrons to reduce the energy in at least a portion of the neutrons. A first moderator formed by heavy water surrounding the source of neutrons and the premoderator to reduce the energy in at least a further portion of the neutrons. A second moderator formed by carbonaceous material at least partially surrounding the plurality of thin hydrogenous wall members and the first moderator to reduce the energy in at least an additional portion of the neutrons and reflect back the additional portion of neutrons into the opening.
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: February 7, 1995
    Assignee: Science Applications International Corporation
    Inventor: Tsahi Gozani
  • Patent number: 5162096
    Abstract: A detector structure adjacent an opening in a cavity structure for detecting explosives in objects within such opening including a plurality of thin nonchlorinated hydrogenous wall members forming a passageway to define such opening. A source of high energy neutrons located adjacent the passageway to direct neutrons into the passageway. A premoderator formed by nonchlorinated hydrocarbon material surrounding the source of high energy neutrons to reduce the energy in at least a portion of the neutrons. A first moderator formed by heavy water surrounding the source of neutrons and the premoderator to reduce the energy in at least a further portion of the neutrons. A second moderator formed by carbonaceous material at least partially surrounding the plurality of thin hydrogenous wall members and the first moderator to reduce the energy in at least an additional portion of the neutrons and reflect back the additional portion of neutrons into the opening.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: November 10, 1992
    Assignee: Science Applications International Corporation
    Inventor: Tsahi Gozani
  • Patent number: 5153439
    Abstract: A nuclear detection system and method uses an artificial neural system to efficiently detect explosives in checked airline baggage or other parcels with a high probability of detection (PD) and a low probability of false alarms (PFA). The detection system detects the presence of nitrogen and other elements and their rough density distribution within the object under investigation by performing a nuclear-based analysis of the object. The detection system includes a source of neutrons; an array of gamma ray detectors; at least one neutron detector; means for irradiating the object being examined with neutrons from the neutron source, which neutrons interact with the atomic nuclei of one or more specific elements, e.g.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: October 6, 1992
    Assignee: Science Applications International Corporation
    Inventors: Tsahi Gozani, Patrick M. Shea
  • Patent number: 5114662
    Abstract: A system for detecting the presence of explosives contained in an object under observation, including a cavity structure for receiving the object and a radiation source for producing thermal neutrons directed to the object under observation. Gamma rays are produced to represent the presence of explosives and as an example the concentration of nitrogen contained in the object. Inorganic scintillators are located within the cavity structure to detect the gamma rays and produce an output signal representative of the presence and concentration of the nitrogen and/or other elements contained in the object. The inorganic scintillators are formed as a ring around the cavity structure to detect the nitrogen and/or other elements within at least one particular plane passing through the object. The object under observation is moved through the cavity structure to detect the nitrogen in successive planes to build up a three dimensional profile of explosives concentration.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: May 19, 1992
    Assignee: Science Applications International Corporation
    Inventors: Tsahi Gozani, Patrick M. Shea
  • Patent number: 5098640
    Abstract: An apparatus and method non-invasively interrogates an object to detect contraband. The apparatus irradiates the object with fast neutrons of energy greater than 6.7 MeV, and measures the ensuing gamma-ray spectra. Irradiation of the object is accomplished by producing a neutron beam and moving the interrogated object stepwise or continuously relative to the beam. The nuclear interactions of highly penetrating neutrons within the irradiated volume of the object give rise to energetic nuclear-species characteristic gamma-rays. The energy and intensity of the emitted gamma-rays provide information relative to the spatial and density distributions of the gamma-ray sources, i.e., the specific atomic nuclei within the object. From this information, three-dimensional images of the atomic nuclei spatial and density distributions are inferred. Such three-dimensional images allow a decision to be made as to the presence of contraband. Measurements are made using arrays of gamma-ray scintillator detectors.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: March 24, 1992
    Assignee: Science Applications International Corporation
    Inventors: Tsahi Gozani, Z. Peter Sawa, Patrick M. Shea
  • Patent number: 5078952
    Abstract: A nuclear detection system and method efficiently detects explosives in checked airline baggage or other parcels with a high probability of detection (PD) and a low probability of false alarms (PFA). The detection system detects the presence of nitrogen and its rough density distribution within the object under investigation by performing a nuclear-based analysis of the object. The detection system includes a source of thermal neutrons; an array of gamma ray detectors; a neutron detector; means for irradiating the object being examined to neutrons from the neutron source, which neutrons interact with the atomic nuclei of one or more specific elements, e.g.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: January 7, 1992
    Assignee: Science Applications International Corporation
    Inventors: Tsahi Gozani, Patrick M. Shea, Z. Peter Sawa
  • Patent number: 5076993
    Abstract: A system and method for detecting contraband generates a highly collimated beam of pulsed fast neutrons, having a pulse width on the order of a nanosecond, and an energy of 5 to 9 MeV. An object under investigation is scanned with the collimated pulsed beam. The neutrons in the beam cause (n, .gamma.) reactions in a limited object volume or voxel, defined by the intersection of the collimated beam and the scanned object. The highly penetrating fast neutrons produce nuclear reactions with the atomic elements present within the object, causing gamma rays to be emitted. By measuring the approximate time of flight of the neutron pulse, a determination is made as to the particular voxel from which the gamma ray originated. The energy of the detected gamma rays identifies the particular elements from which the gamma rays originated. Thus, e.g., the carbon, nitrogen, oxygen, and chlorine content, which elements are commonly found in contraband, of a particular voxel can be determined directly and precisely.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: December 31, 1991
    Assignee: Science Applications International Corporation
    Inventors: Z. Peter Sawa, Tsahi Gozani, Peter Ryge