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DOE OSTI · 1762151

Boron-loaded organic glass scintillators

Nguyen, Lucas Q.·Gabella, Gino·Goldblum, Bethany L.·Laplace, Thibault A.·Carlson, Joseph S.·Brubaker, Erik·Feng, Patrick L.
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Abstract

Herein we report the progress towards an organic glass scintillator with fast and thermal neutron sensitivity providing “triple” pulse shape discrimination (PSD) through the inclusion of a boron-incorporated aromatic molecule. Here, the commercially available molecule 2-(p-tolyl)-1,3,2-dioxaborinane (TDB) can be readily synthesized in one step using inexpensive materials and incorporated into the organic glass scintillator at 20% by weight or 0.25% 10 B by mass. In addition, we demonstrate that TDB can be easily scaled up and formulated into organic glass scintillator samples to produce a thermal neutron capture signal with a light yield equivalent to 120.4 ± 3.7 keVee, which is the highest value reported in the literature to date.

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGYBoron-10GlassOrganic scintillatorParticle discriminationThermal neutron

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Nguyen, Lucas Q., Gabella, Gino, Goldblum, Bethany L., Laplace, Thibault A., Carlson, Joseph S., Brubaker, Erik, Feng, Patrick L.. 2020-11-30. Boron-loaded organic glass scintillators. https://doi.org/10.1016/j.nima.2020.164898

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