Risley prism scan-based approach to standoff trace explosive detection
2013
A number of optical techniques are available to perform active standoff trace explosive detection. Integrating a laser scanner provides the ability to detect explosives over a wide area as well as to assess the full extent of a threat. Risley prism laser-beam steering systems provide a robust alternative to conventional scanner solutions and are ideal for portable and mobile systems due to their compact size, low power, large field- of-view, and fast scan speed. The design of a long-wave infrared Risley prism-scanned diffuse reflectance spec- troscopy system along with data obtained from a prototype system is presented for both simulant and live explo- sive materials. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this
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