Progress in passive submillimeter-wave video imaging

Erik Heinz; Torsten May; Detlef Born; Gabriel Zieger; Katja Peiselt; Vyacheslav Zakosarenko; Torsten Krause; André Krüger; Marco Schulz; Frank Bauer; Hans-Georg Meyer

doi:10.1117/12.2054481

9 June 2014 Progress in passive submillimeter-wave video imaging

Erik Heinz, Torsten May, Detlef Born, Gabriel Zieger, Katja Peiselt, Vyacheslav Zakosarenko, Torsten Krause, André Krüger, Marco Schulz, Frank Bauer, Hans-Georg Meyer

Author Affiliations +

Proceedings Volume 9078, Passive and Active Millimeter-Wave Imaging XVII; 907808 (2014) https://doi.org/10.1117/12.2054481
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

Since 2007 we are developing passive submillimeter-wave video cameras for personal security screening. In contradiction to established portal-based millimeter-wave scanning techniques, these are suitable for stand-off or stealth operation. The cameras operate in the 350GHz band and use arrays of superconducting transition-edge sensors (TES), reflector optics, and opto-mechanical scanners. Whereas the basic principle of these devices remains unchanged, there has been a continuous development of the technical details, as the detector array, the scanning scheme, and the readout, as well as system integration and performance. The latest prototype of this camera development features a linear array of 128 detectors and a linear scanner capable of 25Hz frame rate. Using different types of reflector optics, a field of view of 1×2m² and a spatial resolution of 1–2 cm is provided at object distances of about 5–25m. We present the concept of this camera and give details on system design and performance. Demonstration videos show its capability for hidden threat detection and illustrate possible application scenarios.

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Erik Heinz, Torsten May, Detlef Born, Gabriel Zieger, Katja Peiselt, Vyacheslav Zakosarenko, Torsten Krause, André Krüger, Marco Schulz, Frank Bauer, and Hans-Georg Meyer "Progress in passive submillimeter-wave video imaging", Proc. SPIE 9078, Passive and Active Millimeter-Wave Imaging XVII, 907808 (9 June 2014); https://doi.org/10.1117/12.2054481

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