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A portable system has been developed for the detection of neutrons. The sensing element is a silicon radiation detector with a Boron-based converter material that detects neutrons with the 10B(n, α)7 Li reaction. The detector response has been simulated with the MCNPX Monte-Carlo software and the detector geometry has been optimized. A portable readout electronics has been built to operate the detector...
The nondestructive method to detect explosive and chemical threats hidden in a cargo is based on determination of its bulk isotopic content under the fast neutron irradiation using the neutron-induced fingerprint photons. The computational analysis of nuclear processes in the active interrogation system consisting of a 14-MeV pulse neutron generator, neutron and photon detectors, and a cargo truck...
The Fast Neutron Imaging Telescope (FNIT) instrument is a NA-22 funded project for the design, construction, calibration and modeling of an instrument specifically tailored to measure and identify sources of fission neutrons - a key signature of Special Nuclear Material (SNM). A neutron detector that is sensitive to this energy range is of utmost importance to stop the proliferation of these materials...
The paper describes a novel detector for neutrons in the 1 to 20-MeV energy range with combined imaging and spectroscopic capabilities. The Fast Neutron Imaging Telescope (FNIT) was designed to detect solar neutrons from spacecraft deployed to the inner heliosphere. However, the potential application of this instrument to Special Nuclear Material (SNM) identification was also examined. In either case,...
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