Patents by Inventor William L. Adams

William L. Adams 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).

  • Publication number: 20180328861
    Abstract: Systems and methods for detecting clandestine fissile or radioactive material on the basis of emitted radiation and particles (such as neutrons and alpha particles) arising from within the material. Emission by the fissile or radioactive material is detected in conjunction with a conventional x-ray imaging system that includes an external source of illuminating penetrating radiation, at least one detector configured to detect at least the penetrating radiation and to generate a detector signal, and a processor configured as a detector signal discriminator to generate an output indicating whether the detector signal is triggered by an origin other than illuminating penetrating radiation. Active and passive modes of detection are described by some embodiments. Other embodiments are directed toward neutron detection, gamma ray detection with energy resolution, and designs of detectors to enhance the detection of clandestine nuclear material.
    Type: Application
    Filed: November 9, 2017
    Publication date: November 15, 2018
    Inventors: Lee Grodzins, Peter J. Rothschild, William L. Adams
  • Patent number: 9841386
    Abstract: Systems and methods for detecting clandestine fissile or radioactive material on the basis of emitted radiation and particles (such as neutrons and alpha particles) arising from within the material. Emission by the fissile or radioactive material is detected in conjunction with a conventional x-ray imaging system that includes an external source of illuminating penetrating radiation, at least one detector configured to detect at least the penetrating radiation and to generate a detector signal, and a processor configured as a detector signal discriminator to generate an output indicating whether the detector signal is triggered by an origin other than illuminating penetrating radiation. Active and passive modes of detection are described by some embodiments. Other embodiments are directed toward neutron detection, gamma ray detection with energy resolution, and designs of detectors to enhance the detection of clandestine nuclear material.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: December 12, 2017
    Assignee: AMERICAN SCIENCE AND ENGINEERING, INC.
    Inventors: Lee Grodzins, Peter J. Rothschild, William L. Adams
  • Patent number: 8325871
    Abstract: Systems and methods for detecting clandestine fissile or radioactive material on the basis of emitted radiation and particles (such as neutrons and alpha particles) arising from within the material. Emission by the fissile or radioactive material is detected in conjunction with a conventional x-ray imaging system that includes an external source of illuminating penetrating radiation, at least one detector configured to detect at least the penetrating radiation and to generate a detector signal, and a processor configured as a detector signal discriminator to generate an output indicating whether the detector signal is triggered by an origin other than illuminating penetrating radiation. Active and passive modes of detection are described by some embodiments. Other embodiments are directed toward neutron detection, gamma ray detection with energy resolution, and designs of detectors to enhance the detection of clandestine nuclear material.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 4, 2012
    Assignee: American Science and Engineering, Inc.
    Inventors: Lee Grodzins, Peter Rothschild, William L. Adams
  • Publication number: 20110079734
    Abstract: Methods and apparatus for analyzing a test sample using complementary techniques, such as x-ray fluorescence (XRF) and optical emission spectroscopy (OES), are disclosed for registering two or more test instruments, in relation to the test sample, such that each of the instruments analyzes substantially the same region as is analyzed by the other instrument(s), and for communicating analytical results between or among the instruments, or between the instruments and another component, to enable one or more of the instruments, or the other component, to combine the results and, thereby, more completely and accurately determine the composition of the test sample. Such registration and communication enables, for example, separate XRF and OES instruments to collectively determine the composition of the test sample, including the absolute amounts of light and heavy elements in the test material.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 7, 2011
    Inventors: Lee GRODZINS, William L. Adams, Paul Estabrooks
  • Publication number: 20100310041
    Abstract: An X-ray fluorescence instrument in which x-rays are directed from a source onto a sample by a focusing element. Fluorescence from the sample is detected by an x-ray detector disposed entirely within a volume “interior” to the focusing element, as defined in the description of the invention. A second focusing element may collect emission by the sample and direct it monochromatically, over a large opening angle, onto the x-ray detector. Methods for applying the instrument, particularly for the quantification of sulfur and other contaminating elements in lubricants and fuel are also provided.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 9, 2010
    Inventors: William L. Adams, Stephen I. Shefsky
  • Patent number: 7657003
    Abstract: An x-ray source produces a well-defined electron beam, without an undesirable halo. The x-ray source includes a housing, a cathode disposed within the housing, an anode spaced apart from the cathode for accelerating electrons emitted from the cathode and an x-ray emitter target disposed within the housing and spaced apart from the cathode for impact by the accelerated electrons. The cathode includes a passivation layer over only a portion of the area of the cathode, leaving an emission portion of the cathode that is not passivated. The passivation layer reduces or prevents emissions from the passivated portion of the cathode, thereby preventing a halo, which would otherwise be produced by lower-level emissions from the portion of the cathode that surrounds the emission portion of the cathode.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: February 2, 2010
    Assignee: Thermo Niton Analyzers LLC
    Inventor: William L. Adams
  • Publication number: 20090251007
    Abstract: A retrofit module electrically connects to a device's battery terminals, where an original main battery would otherwise connect to the device, and a hot-swappable battery electrically connects to the retrofit module, thereby retrofitting the device for operation with hot-swappable batteries, without shutting down the device to swap the batteries. When a charged hot-swappable battery is connected to the retrofit module, the retrofit module powers the device from the hot-swappable battery. The retrofit module includes a bridge battery and a circuit that charges the bridge battery from the hot-swappable battery and that provides power to the device from the bridge battery while the hot-swappable battery is replaced. The retrofit module may include a releasable structure that maintains the module in contact with the device's battery terminals, even after the hot-swappable battery has been removed.
    Type: Application
    Filed: March 18, 2009
    Publication date: October 8, 2009
    Inventors: William L. Adams, Mark Hamilton
  • Publication number: 20090175412
    Abstract: Systems and methods for detecting clandestine fissile or radioactive material on the basis of emitted radiation and particles (such as neutrons and alpha particles) arising from within the material. Emission by the fissile or radioactive material is detected in conjunction with a conventional x-ray imaging system that includes an external source of illuminating penetrating radiation, at least one detector configured to detect at least the penetrating radiation and to generate a detector signal, and a processor configured as a detector signal discriminator to generate an output indicating whether the detector signal is triggered by an origin other than illuminating penetrating radiation. Active and passive modes of detection are described by some embodiments. Other embodiments are directed toward neutron detection, gamma ray detection with energy resolution, and designs of detectors to enhance the detection of clandestine nuclear material.
    Type: Application
    Filed: September 26, 2008
    Publication date: July 9, 2009
    Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.
    Inventors: Lee Grodzins, Peter Rothschild, William L. Adams
  • Publication number: 20090060142
    Abstract: An x-ray source produces a well-defined electron beam, without an undesirable halo. The x-ray source includes a housing, a cathode disposed within the housing, an anode spaced apart from the cathode for accelerating electrons emitted from the cathode and an x-ray emitter target disposed within the housing and spaced apart from the cathode for impact by the accelerated electrons. The cathode includes a passivation layer over only a portion of the area of the cathode, leaving an emission portion of the cathode that is not passivated. The passivation layer reduces or prevents emissions from the passivated portion of the cathode, thereby preventing a halo, which would otherwise be produced by lower-level emissions from the portion of the cathode that surrounds the emission portion of the cathode.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 5, 2009
    Inventor: William L. ADAMS
  • Patent number: 7218704
    Abstract: An inspection system based upon an enclosed conveyance such as a van, capable of road travel, for inspecting persons or objects. The conveyance is characterized by an enclosing body, or skin. A source of penetrating radiation and a spatial modulator for forming the penetrating radiation into a beam, both contained entirely within the body of the enclosed conveyance, irradiate the person or object with a time-variable scanning profile. A detector module generates a scatter signal based on the scatter of penetrating radiation. A proximity sensor may be employed to generate a relative motion signal based on a relative disposition of the conveyance and the inspected object. An image is formed of the contents of the object based in part on the scatter signal and the relative motion signal. A detector, which may be separate or part of the scatter detector module, may exhibit sensitivity to decay products of radioactive material.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: May 15, 2007
    Assignee: American Science and Engineering, Inc.
    Inventors: William L. Adams, Alex Chalmers, Lee Grodzins, Louis W. Perich, Peter Rothschild
  • Patent number: 6453007
    Abstract: An inspection system is for inspecting an object with penetrating radiation. A source of penetrating radiation provides a beam of radiation. The beam alternates between a first beam shape and a second beam shape, the first and second beam shapes being coplanar. A first detector arrangement is for detecting penetrating radiation from a portion of the beam transmitted through the object and generating a transmitted radiation signal. A second detector arrangement is for detecting penetrating radiation from a portion of the beam scattered by the object and generating a scattered radiation signal. A processor determines at least one characteristic of the object based at least on the transmitted and scattered radiation signals.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: September 17, 2002
    Assignee: American Science and Engineering, Inc.
    Inventors: William L. Adams, Lee Grodzins
  • Publication number: 20010016028
    Abstract: An inspection system is for inspecting an object with penetrating radiation. A source of penetrating radiation provides a beam of radiation. The beam alternates between a first beam shape and a second beam shape, the first and second beam shapes being coplanar. A first detector arrangement is for detecting penetrating radiation from a portion of the beam transmitted through the object and generating a transmitted radiation signal. A second detector arrangement is for detecting penetrating radiation from a portion of the beam scattered by the object and generating a scattered radiation signal. A processor determines at least one characteristic of the object based at least on the transmitted and scattered radiation signals.
    Type: Application
    Filed: February 16, 2001
    Publication date: August 23, 2001
    Inventors: William L. Adams, Lee Grodzins
  • Patent number: 6081580
    Abstract: A tomography system for analyzing an object concealed within an enveloping surface. The system has multiple beams of penetrating radiation, each beam disposed with a distinct orientation with respect to the enveloping surface. Detectors are provided for measuring radiation backscattered by the contents of the enveloping surface and for measuring radiation transmitted through the enveloping surface. The enveloping surface is moved with respect to the multiple beams, and a timer provides for measurement of a time difference between the appearance of features in signals of respective detectors, allowing geometrical characteristics of the features to be determined and displayed.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: June 27, 2000
    Assignee: American Science and Engineering, Inc.
    Inventors: Lee Grodzins, William L. Adams
  • Patent number: 4964468
    Abstract: Corrosion inhibition composition formed as a water-external emulsions having an oil soluble organic film forming type of corrosion inhibitor in the dispersed phase thereof are disclosed for downhole well applications, such emulsions having a stability at room temperature without agitation of from 2 to 30 minutes.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: October 23, 1990
    Assignee: Nalco Chemical Company
    Inventors: William L. Adams, Gary R. Chesnut
  • Patent number: 4738723
    Abstract: Disclosed is a new and improved sealant and cement asphalt composition that is asbestos-free. The asbestos-free asphalt composition comprises about 40 to about 70 weight percent asphalt, about 5 to about 40 weight percent mineral filler, about 2 to about 10 weight percent cellulose fibers and about 2 to about 20 weight percent of a water-containing material such as an acrylic latex emulsion, asphalt emulsion or aqueous surfactant solution.
    Type: Grant
    Filed: May 29, 1985
    Date of Patent: April 19, 1988
    Assignee: Gulf States Asphalt Co.
    Inventors: Chris Frizzell, William L. Adams, Robert Fulton