Patents by Inventor David B. McColl

David B. McColl 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).

  • Raster scan control system for a charged-particle beam
    Patent number: 5017789
    Abstract: A raster scan control system (18) for use with a charged-particle beam delivery system (20) provides precise control of large currents driving an inductive load. The beam delivery system includes a nozzle through which a charged-particle beam (24), such as a proton beam, passes prior to being directed to a target (32). The nozzle includes both fast and slow sweep scan electromagnets (204, 208) that cooperate to generate a sweeping magnetic field that steers the beam along a desired raster scan pattern at the target. The electromagnets are driven by large currents (213, 215) from the raster scan control system.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: May 21, 1991
    Assignee: Loma Linda University Medical Center
    Inventors: Phillip E. Young, David B. McColl