5 May 2006 Fast-neutron/gamma-ray radiography scanner for the detection of contraband in air cargo containers
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There is a worldwide need for efficient inspection of cargo containers at airports, seaports and road border crossings. The main objectives are the detection of contraband such as illicit drugs, explosives and weapons. Due to the large volume of cargo passing through Australia's airports every day, it is critical that any scanning system should be capable of working on unpacked or consolidated cargo, taking at most 1-2 minutes per container. CSIRO has developed a fast-neutron/gamma-ray radiography (FNGR) method for the rapid screening of air freight. By combining radiographs obtained using 14 MeV neutrons and 60Co gamma-rays, high resolution images showing both density and material composition are obtained. A near full-scale prototype scanner has been successfully tested in the laboratory. With the support of the Australian Customs Service, a full-scale scanner has recently been installed and commissioned at Brisbane International Airport.
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J. Eberhardt, Y. Liu, S. Rainey, G. Roach, B. Sowerby, R. Stevens, J. Tickner, "Fast-neutron/gamma-ray radiography scanner for the detection of contraband in air cargo containers", Proc. SPIE 6213, Non-Intrusive Inspection Technologies, 621303 (5 May 2006); doi: 10.1117/12.663984; https://doi.org/10.1117/12.663984


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