Lawrence Livermore National Security, LLC

Iwona A Pawelczak

Stephen Anthony Payne

M Leslie Carman

Natalia P Zaitseva

Andrew M Glenn

H Paul Martinez

Michelle A Faust

Keith E Lewis

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.

System and plastic scintillator for discrimination of thermal neutron, fast neutron, and gamma radiation

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Livermore, CA, United States of America

Iwona A Pawelczak