Radiation Detection and Dual-Energy X-Ray Imaging for Port Security

Technical Report · Wed Aug 09 04:00:00 EDT 2017

DOI:https://doi.org/10.2172/1389982· OSTI ID:1389982

Pashby, J. ^[1]; Glenn, S. ^[1]; Divin, C. ^[1]; Martz, H. ^[1]

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1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Millions of cargo containers are transported across the United States border annually and are inspected for illicit radioactive material and contraband using a combination of passive radiation portal monitors (RPM) and high energy X-ray non-intrusive inspection (NII) systems. As detection performance is expected to vary with the material composition of cargo, characterizing the types of material present in cargo is important to national security. This work analyzes the passive radiation and dual energy radiography signatures from on RPM and two NII system, respectively. First, the cargos were analyzed to determine their ability to attenuate emissions from an embedded radioactive source. Secondly, dual-energy X-ray discrimination was used to determine the material composition and density of the cargos.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 1389982
• Report Number(s): LLNL-TR--736549
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
97 MATHEMATICS AND COMPUTING
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
CARGO
NATIONAL SECURITY
RADIATION DETECTION
RADIOACTIVE MATERIALS