This paper describes and discusses the combined system which was installed to allocate and identify contraband materials hidden in air cargo containers by fast neutron radiography and neutron elemental analysis techniques. A slit of fan beam of fast neutrons emitted from Pu-Be source was used. The fast neutron fluxes passed through different lines crossing the hidden object were detected by a neutron spectrometer applies stilbene scintillator and pulse shape method to discriminate agnist undesired pulses of gamma-rays. A two channel spectroscopy method was used to eleminate the effect of spectrum shift caused by the benign materials surrounding the hidden object.
Osman AM, Abd-elrhman AS, Bashter II, Megahid RM (2013) Detection and Identification of Contraband in Air Cargo Containers Using Neutron Based Techniques. J Nucl Ene Sci Power Generat Technol 2:3.