title: High-efficiency microstructured semiconductor neutron detectors that are arrayed, dual-integrated, and stacked.
abstract: Silicon diodes with large aspect ratio 3D microstructures backfilled with 6LiF show a significant increase in neutron detection efficiency beyond that of conventional thin-film coated planar devices. Described in this work are advancements in the technology using detector stacking methods and summed-detector 6×6-element arraying methods to dramatically increase the sensitivity to thermal neutrons. The intrinsic detection efficiency of the 6×6 array for normal-incident 0.0253 eV neutrons was found 6.8% compared against a calibrated 3He proportional counter.
authors.affiliation: Department of Mechanical and Nuclear Engineering, Kansas State University, Manhattan, KS 66506, USA. slb3888@ksu.edu
authors.forename: Steven L
authors.initials: SL
authors.lastname: Bellinger
authors.forename: Ryan G
authors.initials: RG
authors.lastname: Fronk
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Sobering
authors.forename: Douglas S
authors.initials: DS
authors.lastname: McGregor