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 :

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