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PLASTIC SCINTILLATOR WITH EFFECTIVE PULSE SHAPE DISCRIMINATION FOR NEUTRON AND GAMMA DETECTION

United States Patent Application

20160186052
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
In one embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 5 wt % or more; wherein the scintillator material exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays. In another embodiment, a scintillator material includes a polymer matrix comprising at least one of: polyvinyl xylene (PVX); polyvinyl diphenyl; and polyvinyl tetrahydronaphthalene; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount greater than 10 wt %. A total loading of dye in the scintillator material is sufficient to cause the scintillator material to exhibit a pulse-shape discrimination (PSD) figure of merit (FOM) of about at least 2.0.
Zaitseva, Natalia P. (Livermore, CA), Carman, M Leslie (San Ramon, CA), Cherepy, Nerine (Piedmont, CA), Glenn, Andrew M. (Livermore, CA), Hamel, Sebastien (Livermore, CA), Payne, Stephen A. (Castro Valley, CA), Rupert, Benjamin L. (Berkeley, CA)
15/ 063,285
March 7, 2016
[0002] 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.