title: Efficient scalable solid-state neutron detector.
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 (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(2), is estimated to yield the minimum absolute efficiency required of radiological portal monitors used in homeland security.
authors.affiliation: Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106-5090, USA.
authors.forename: Daniel
authors.initials: D
authors.lastname: Moses