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DOE OSTI · 22483248

Efficient scalable solid-state neutron detector

Moses, Daniel
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Abstract

We report on scalable solid-state neutron detector system that is specifically designed to yield high thermal neutron detection sensitivity. The basic detector unit in this system is made of a {sup 6}Li foil coupled to two crystalline silicon diodes. The theoretical intrinsic efficiency of a detector-unit is 23.8% and that of detector element comprising a stack of five detector-units is 60%. Based on the measured performance of this detector-unit, the performance of a detector system comprising a planar array of detector elements, scaled to encompass effective area of 0.43 m{sup 2}, is estimated to yield the minimum absolute efficiency required of radiological portal monitors used in homeland security.

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGYDESIGNEFFICIENCYFOILSLITHIUM 6NEUTRON DETECTIONNEUTRON DETECTORSPERFORMANCESECURITYSENSITIVITYSILICON DIODESTHERMAL NEUTRONSYIELDS

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Moses, Daniel. 2015-06-15. Efficient scalable solid-state neutron detector. https://doi.org/10.1063/1.4922530

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