Patents by Inventor Gerry Frketich

Gerry Frketich 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).

  • Electron radiation dose tailoring by variable beam pulse generation
    Patent number: 5449916
    Abstract: A method and apparatus for controlling the delivered dose across a target area from an electron beam produced by a high energy, high power pulsed rf linear accelerator. Pulse width modulation as a function of scan position is applied to the rf drive pulses of the accelerator operated in a long pulse mode and fast feedback control is used to maintain uniform rf field intensity on an intra-pulse basis. In an alternative embodiment, rf drive pulses are inhibited as a function of scan position.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: September 12, 1995
    Assignee: Atomic Energy of Canada Limited
    Inventors: Dennis L. Smyth, Gerry Frketich