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4 May 2007 Terahertz interferometric imaging of RDX
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Experimental results of homodyne terahertz interferometric 2-D imaging of RDX are presented. Continuous waves at 0.25-0.6 THz are used to obtain images of a C-4 sample at several THz frequencies. The performance of an N element detector array is imitated by only one detector placed at N positions. The distance between the C-4 sample and the detector array is ~30 cm. By taking interferometric images at several THz frequencies RDX can be recognized by the spectral peak at 0.82 THz. Simulations of interferometric images of two point sources of spherical waves are presented. The terahertz interferometric imaging method can be used in defense and security applications to detect concealed weapons, explosives as well as chemical and biological agents.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander M. Sinyukov, Robert B. Barat, Dale E. Gary, Zoi-Heleni Michalopoulou, Ivan Zorych, David Zimdars, and John F. Federici "Terahertz interferometric imaging of RDX", Proc. SPIE 6549, Terahertz for Military and Security Applications V, 654909 (4 May 2007);

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