Characteristics of trace explosives particles in fingerprints for optical detection

R. Andrew McGill; Robert Furstenberg; Michael Papantonakis; Viet Nguyen; Christopher A. Kendziora; Lara Stroud; Lars Dryer; Thomas Fischer; Benjamin Andrews; Caroline Colpoys; Abby Goldberg; Lilly Zehfus; Andrew Kusterbeck

doi:10.1117/12.2519433

17 May 2019 Characteristics of trace explosives particles in fingerprints for optical detection

R. Andrew McGill, Robert Furstenberg, Michael Papantonakis, Viet Nguyen, Christopher A. Kendziora, Lara Stroud , Lars Dryer, Thomas Fischer, Benjamin Andrews, Caroline Colpoys, Abby Goldberg, Lilly Zehfus, Andrew Kusterbeck

Author Affiliations +

Proceedings Volume 11010, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XX; 110100I (2019) https://doi.org/10.1117/12.2519433
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Trace particle quantities of explosives left behind by those handling explosives materials present an opportunity to identify both the handlers, secondary handlers and the objects they have contacted. Understanding the nature of these particles is critical for tailoring optical detection strategies as well as non-optical contact harvesting methods. We are working towards developing a model to understand and quantify the nature of particles transferred from the hands to different substrate surfaces. In this preliminary paper we report on a newly developed finger test-bed to produce a robotically controlled series of fingerprints, with an artificial finger designed to mimic the physicochemical properties of the human finger. In an initial set of experiments, we examine the effect of a range of applied forces, the effect of a range of initial particle sizes, and the serial print number on the deposited mass and deposited particle sizes, for a surrogate explosive loaded as particles on gloved fingers which are subsequently pressed against a set of clean glass slides.

Citation Download Citation

R. Andrew McGill, Robert Furstenberg, Michael Papantonakis, Viet Nguyen, Christopher A. Kendziora, Lara Stroud , Lars Dryer, Thomas Fischer, Benjamin Andrews, Caroline Colpoys, Abby Goldberg, Lilly Zehfus, and Andrew Kusterbeck "Characteristics of trace explosives particles in fingerprints for optical detection", Proc. SPIE 11010, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XX, 110100I (17 May 2019); https://doi.org/10.1117/12.2519433

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