Patents by Inventor Amir H. Mohagheghi

Amir H. Mohagheghi 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).

  • Detection of alpha radiation in a beta radiation field
    Patent number: 6262420
    Abstract: An apparatus and method for detecting alpha particles in the presence of high activities of beta particles utilizing an alpha spectrometer. The apparatus of the present invention utilizes a magnetic field applied around the sample in an alpha spectrometer to deflect the beta particles from the sample prior to reaching the detector, thus permitting detection of low concentrations of alpha particles. In the method of the invention, the strength of magnetic field required to adequately deflect the beta particles and permit alpha particle detection is given by an algorithm that controls the field strength as a function of sample beta energy and the distance of the sample to the detector.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: July 17, 2001
    Assignee: Sandia Corporation
    Inventors: Amir H. Mohagheghi, Robert P. Reese