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19 May 2005 THz standoff detection and imaging of explosives and weapons (Invited Paper)
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Abstract
Recently, there has been a significant interest in employing Terahertz (THz) technology, spectroscopy and imaging for standoff detection applications. There are three prime motivations for this interest: (a) THz radiation can detect concealed weapons since many non-metallic, non-polar materials are transparent to THz radiation, (b) target compounds such as explosives, and bio/chemical weapons have characteristic THz spectra that can be used to identify these compounds and (c) THz radiation poses no health risk for scanning of people. This paper will provide an overview of THz standoff detection of explosives and weapons including discussions of effective range, spatial resolution, and other limitations. The THz approach will be compared to alternative detection modalities such as x-ray and millimeter wave imaging.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John F. Federici, Dale Gary, Robert Barat, and David Zimdars "THz standoff detection and imaging of explosives and weapons (Invited Paper)", Proc. SPIE 5781, Optics and Photonics in Global Homeland Security, (19 May 2005); https://doi.org/10.1117/12.604695
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