Patents by Inventor Stephen Croft

Stephen Croft 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).

  • Method for the determination of the neutron multiplicity counter dead time parameter
    Patent number: 8044366
    Abstract: A method is provided for simplifying the calibration of neutron multiplicity counters. The method includes multiplicity counter dead time correction algorithms that preclude the need for extended calibration steps with known radiation sources. The algorithms include approximations that allow calculation of the counter's efficiency without knowledge of sample source activity or origin.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: October 25, 2011
    Assignee: Canberra Industries, Inc.
    Inventors: Stephen Croft, Robert D. McElroy, Jr., Sasha Philips
  • METHOD FOR THE DETERMINATION OF THE NEUTRON MULTIPLICITY COUNTER DEAD TIME PARAMETER
    Publication number: 20110231138
    Abstract: A method is provided for simplifying the calibration of neutron multiplicity counters. The method includes multiplicity counter dead time correction algorithms that preclude the need for extended calibration steps with known radiation sources. The algorithms include approximations that allow calculation of the counter's efficiency without knowledge of sample source activity or origin.
    Type: Application
    Filed: July 13, 2007
    Publication date: September 22, 2011
    Inventors: Stephen Croft, Robert D. McElroy, JR., Sasha Philips
  • Extending the dynamic range of the TGS through the use of a dual intensity transmission beam
    Patent number: 7541590
    Abstract: A method for automating and extending the density range for gamma ray attenuation correction algorithms for all classes of non-destructive assay systems including those without automated shutters or automated collimators. A system and software for implementing the method are also provided. The system features a dual-intensity transmission source and utilizes a three pass scanning protocol. The high-energy source in conjunction with a beam modulator produces a high and low energy beam. Automated software determines which beam data to use in tomographic reconstruction of an object being scanned.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: June 2, 2009
    Assignee: Canberra Albuquerque, Inc.
    Inventors: Stephen Croft, Susan C. Kane, Patty McClay, Robert D. McElroy, Jr., Wilhelm F. Mueller, Marcel F. Villani
  • Extending the Dynamic Range of the TGS Through the Use of a Dual Intensity Transmission Beam
    Publication number: 20080084960
    Abstract: A method for automating and extending the density range for gamma ray attenuation correction algorithms for all classes of non-destructive assay systems including those without automated shutters or automated collimators. A system and software for implementing the method are also provided. The system features a dual-intensity transmission source and utilizes a three pass scanning protocol. The high-energy source in conjunction with a beam modulator produces a high and low energy beam. Automated software determines which beam data to use in tomographic reconstruction of an object being scanned.
    Type: Application
    Filed: July 13, 2007
    Publication date: April 10, 2008
    Inventors: Stephen Croft, Susan Kane, Patty McClay, Robert McElroy, Wilhelm Mueller, Marcel Villani
  • Sachet
    Patent number: D960715
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: August 16, 2022
    Inventor: Stephen Croft