Patents Assigned to The Nucleus, Inc.
  • Patent number: 3974088
    Abstract: An intimate mixture of americium-241 and iodine-129 provides an energy spectrum that reliably simulates the spectrum of iodine-125 in a well-type detector. As such, it may be used as a long-lived standard to calibrate instruments such as well scintillation spectrometers in which measurements are to be made involving iodine-125.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: August 10, 1976
    Assignee: The Nucleus, Inc.
    Inventor: David L. Coffey