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Gadolinium-doped water cerenkov-based neutron and high energy gamma-ray detector and radiation portal monitoring system

United States Patent

February 12, 2013
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A water Cerenkov-based neutron and high energy gamma ray detector and radiation portal monitoring system using water doped with a Gadolinium (Gd)-based compound as the Cerenkov radiator. An optically opaque enclosure is provided surrounding a detection chamber filled with the Cerenkov radiator, and photomultipliers are optically connected to the detect Cerenkov radiation generated by the Cerenkov radiator from incident high energy gamma rays or gamma rays induced by neutron capture on the Gd of incident neutrons from a fission source. The PMT signals are then used to determine time correlations indicative of neutron multiplicity events characteristic of a fission source.
Dazeley; Steven A. (Oakland, CA), Svoboda; Robert C. (Davis, CA), Bernstein; Adam (Palo Alto, CA), Bowden; Nathaniel (Oakland, CA)
Lawrence Livermore National Security, LLC (Livermore, CA)
12/ 784,390
May 20, 2010
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.