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SYSTEM AND PLASTIC SCINTILLATOR FOR DISCRIMINATION OF THERMAL NEUTRON, FAST NEUTRON, AND GAMMA RADIATION

United States Patent Application

20130299702
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A scintillator material according to one embodiment includes a polymer matrix; a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 3 wt % or more; and at least one component in the polymer matrix, the component being selected from a group consisting of B, Li, Gd, a B-containing compound, a Li-containing compound and a Gd-containing compound, wherein the scintillator material exhibits an optical response signature for thermal neutrons that is different than an optical response signature for fast neutrons and gamma rays. A system according to one embodiment includes a scintillator material as disclosed herein and a photodetector for detecting the response of the material to fast neutron, thermal neutron and gamma ray irradiation.
Zaitseva, Natalia P. (Livermore, CA), Carman, M Leslie (San Ramon, CA), Faust, Michelle A. (Woodland, CA), Glenn, Andrew M. (Livermore, CA), Martinez, H. Paul (Livermore, CA), Pawelczak, Iwona A. (Livermore, CA), Payne, Stephen A. (Castro Valley, CA), Lewis, Keith E. (Escalon, CA)
LAWRENCE LIVERMORE NATIONAL SECURITY, LLC (Livermore CA)
13/ 471,259
May 14, 2012
[0001] 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.