Patents by Inventor Anne-Marie Frelin

Anne-Marie Frelin 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).

  • System for controlling photomultiplier gain drift and associated method
    Patent number: 8624192
    Abstract: A system for controlling photomultiplier gain drift is disclosed. According to one aspect, the system includes first means for measuring a noise signal of the photomultiplier, the first means configured emit a measurement signal representative of the photomultiplier's noise signal. The system further includes second means for maintaining the measured noise signal at a constant level, based on the measurement signal. The disclosed embodiments apply to stabilization of the gain of photomultipliers and, more specifically, to stabilization of neutron measurement systems using photomultipliers.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: January 7, 2014
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Stéphane Normand, Anne-Marie Frelin, Hassen Hamrita, Vladimir Kondrasovs
  • SYSTEM FOR CONTROLLING PHOTOMULTIPLIER GAIN DRIFT AND ASSOCIATED METHOD
    Publication number: 20110186740
    Abstract: A system for controlling photomultiplier gain drift is disclosed. According to one aspect, the system includes first means for measuring a noise signal of the photomultiplier, the first means configured emit a measurement signal representative of the photomultiplier's noise signal. The system further includes second means for maintaining the measured noise signal at a constant level, based on the measurement signal. The disclosed embodiments apply to stabilization of the gain of photomultipliers and, more specifically, to stabilization of neutron measurement systems using photomultipliers.
    Type: Application
    Filed: September 22, 2009
    Publication date: August 4, 2011
    Applicant: Commissariat a l'energie atomiwque et aux energies altenatives
    Inventors: Stéphane Normand, Anne-Marie Frelin, Hassen Hamrita, Vladimir Kondrasovs