High-efficiency organic glass scintillators

United States Patent

December 19, 2017
View the Complete Patent at the US Patent & Trademark Office
Organic Glass for Radiation Detection
A new family of neutron/gamma discriminating scintillators is disclosed that comprises stable organic glasses that may be melt-cast into transparent monoliths. These materials have been shown to provide light yields greater than solution-grown trans-stilbene crystals and efficient PSD capabilities when combined with 0.01 to 0.05% by weight of the total composition of a wavelength-shifting fluorophore. Photoluminescence measurements reveal fluorescence quantum yields that are 2 to 5 times greater than conventional plastic or liquid scintillator matrices, which accounts for the superior light yield of these glasses. The unique combination of high scintillation light-yields, efficient neutron/gamma PSD, and straightforward scale-up via melt-casting distinguishes the developed organic glasses from existing scintillators.
October 10, 2016
G01T 1/20 (20060101); C07C 211/54 (20060101); C07F 7/08 (20060101); C09K 11/06 (20060101); C07F 9/46 (20060101); C07C 209/08 (20060101); G01T 3/06 (20060101);
GOVERNMENT RIGHTS This invention was made with Government support under Contract No. DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The Government has certain rights in the invention.