1 May 2007 High-resolution passive millimeter-wave security screening using few amplifiers
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Trex Enterprises has applied the frequency scanned antenna architecture found in the ST-150 stand-off imager to closein personnel screening devices, including a full-body imager and a handheld scanning imager. These devices present the user with an image with 3mm square pixels and 10-18 mm spatial resolution using few amplifiers and a low level of mechanical complexity. The frequency scanned architecture permits the real-time imaging of a linear array of 64 pixels with a single amplifier module. The linear imager or imagers are slowly mechanically scanned to provide a twodimensional image. The imagers were used to capture images of concealed threat items at thermal resolutions from 1 K to 0.2 K, indoor and outdoors. Image quality is generally superior to that of stand-off detectors, detecting items as small as 10 mm.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christopher A. Martin, Christopher A. Martin, John A. Lovberg, John A. Lovberg, William H. Dean, William H. Dean, Eahab Ibrahim, Eahab Ibrahim, } "High-resolution passive millimeter-wave security screening using few amplifiers", Proc. SPIE 6548, Passive Millimeter-Wave Imaging Technology X, 654806 (1 May 2007); doi: 10.1117/12.718950; https://doi.org/10.1117/12.718950

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