Patents by Inventor Larry Dean Partain

Larry Dean Partain 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).

  • MEGAVOLTAGE IMAGING WITH A PHOTOCONDUCTOR BASED SENSOR
    Publication number: 20110079729
    Abstract: A photodetector for detecting megavoltage (MV) radiation comprises a semiconductor conversion layer having a first surface and a second surface disposed opposite the first surface, a first electrode coupled to the first surface, a second electrode coupled to the second surface, and a low density substrate including a detector array coupled to the second electrode opposite the semiconductor conversion layer. The photodetector includes a sufficient thickness of a high density material to create a sufficient number of photoelectrons from incident MV radiation, so that the photoelectrons can be received by the conversion layer and converted to a sufficient of recharge carriers for detection by the detector array.
    Type: Application
    Filed: December 10, 2010
    Publication date: April 7, 2011
    Inventors: Larry Dean Partain, George Zentai
  • Megavoltage imaging with a photoconductor based sensor
    Patent number: 7884438
    Abstract: A photodetector for detecting megavoltage (MV) radiation comprises a semiconductor conversion layer having a first surface and a second surface disposed opposite the first surface, a first electrode coupled to the first surface, a second electrode coupled to the second surface, and a low density substrate including a detector array coupled to the second electrode opposite the semiconductor conversion layer. The photodetector includes a sufficient thickness of a high density material to create a sufficient number of photoelectrons from incident MV radiation, so that the photoelectrons can be received by the conversion layer and converted to a sufficient of recharge carriers for detection by the detector array.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: February 8, 2011
    Assignee: Varian Medical Systems, Inc.
    Inventors: Larry Dean Partain, George Zentai
  • Photodetector biasing scheme
    Patent number: 6969896
    Abstract: A photodetector having a semiconductor conversion layer is described. The photodetector is configured to receive x-rays incident on its substrate with the substrate-side contact biased so that the lowest mobility carrier in the semiconductor conversion layer is collected by the substrate side contact.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: November 29, 2005
    Assignee: Varian Medical Systems Technologies, Inc.
    Inventors: Larry Dean Partain, George Zentai, Raisa Pavlyuchkova