Ionizing Radiation Imaging Technologies for Homeland Security


D. J. Strom, J. Callerame


Inspection of cargo containers, vehicles, and people is essential for detection of weapons, explosives, and contraband. A wide variety of imaging technologies have been deployed in recent years, from traditional transmission radiography to the new backscatter x-ray imaging now used from ports to prisons. This paper briefly outlines the physics of transmission and backscatter imaging technologies, reviews the kinds of radiation generating devices (e.g., radionuclide sources, x-ray generators, and linacs) used in each, and the benefits and drawbacks of each. The paper concludes with data on doses to persons being scanned, to cargo, and to workers and public in the vicinity.


This abstract was presented at the 36th Annual Midyear Meeting, "Radiation Safety Aspects of Homeland Security and Emergency Response", Emerging Technologies, Part 2 Session, 1/26/2003 - 1/29/2003, held in San Antonio, TX.

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