Patents by Inventor Grayson H. Rayborn

Grayson H. Rayborn 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).

  • Low energy electron magnetometer using a monoenergetic electron beam
    Patent number: 4414509
    Abstract: A low energy electron beam magnetometer that utilizes near-monoenergetic electrons thereby reducing errors due to electron energy spread and electron nonuniform angular distribution. In a first embodiment of the invention (FIGS. 3 and 4) atoms in an atomic beam 30 of an inert gas are excited to a Rydberg state (lasers 32, 33 and 34) and then electrons of near zero energy are detached from the Rydberg atoms (gas chamber 35 ). The near zero energy electrons are then accelerated by an electric field V.sub.acc to form the electron beam 21. In a second embodiment of the invention (FIG. 5) a filament 42 emits electrons into an electrostatic analyzer 40 which selects electrons at a predetermined energy level within a very narrow range. These selected electrons make up the electron beam that is subjected to the magnetic field being measured.
    Type: Grant
    Filed: November 26, 1980
    Date of Patent: November 8, 1983
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Jag J. Singh, George M. Wood, Jr., Grayson H. Rayborn, Frederick A. White