Patents Assigned to The Parvus Corporation
  • Dynamic multivane electron arc beam collimator
    Patent number: 5160847
    Abstract: This invention is a dynamic multivane electron arc beam collimator having collimation vanes, means for controlling the vanes, and local controllers at the collimation site which dynamically define an electron aperture which defines the electron field of an electron beam emitted by a linear accelerator during electron arc therapy. The collimator can be attached to or detached from the head of a linear accelerator. The collimator provides for improvement in electron arc therapy dose uniformity.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: November 3, 1992
    Assignee: The Parvus Corporation
    Inventors: Dennis D. Leavitt, George A. Takach, Jr.