Doped Boron Carbide-Based Polymers: Fundamental Studies of a Novel Class of Materials for Enhanced Neutron Detection
Technical Report,01 Aug 2009,31 Jul 2014
University of North Texas Denton United States
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The overall goal of this basic research has been to develop novel, boron carbide-based polymers with novel chemical and electronic structures to enhance sensitivity to neutron detection. Films containing orthocarboranes with benzene, 1,4- diaminobenzene, or pyridine have been developed and characterized by photoemission and neutron voltaics studies at zero bias. Orthocarboranepyridine films with pyridineorthocarborane ratios1 deposited on n-type Si show greatly enhanced sensitivity to thermal neutrons, even with lower total B content, than pure boron carbide films, while remaining gamma-blind. The enhanced sensitivity indicates greatly enhanced charger collection efficiency in the carboranepyridine films.