Accession Number : AD1005251


Title :   Doped Boron Carbide-Based Polymers: Fundamental Studies of a Novel Class of Materials for Enhanced Neutron Detection


Descriptive Note : Technical Report,01 Aug 2009,31 Jul 2014


Corporate Author : University of North Texas Denton United States


Personal Author(s) : Kelber,Jeffry A ; Dowben,Peter A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1005251.pdf


Report Date : 01 Mar 2016


Pagination or Media Count : 24


Abstract : 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. Orthocarborane/pyridine films with pyridine:orthocarborane 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 carborane/pyridine films.


Descriptors :   polymers , Thermal Neutrons , neutron detectors , thin films , spectroscopy , polymeric films , Semiconductors


Distribution Statement : APPROVED FOR PUBLIC RELEASE