Concealed drug detection via fan beam coded-aperture x-ray diffraction imaging

Joel A. Greenberg; Stefan Stryker; Josh Carpenter; Anuj J. Kapadia

doi:10.1117/12.2587061

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19 April 2021 Concealed drug detection via fan beam coded-aperture x-ray diffraction imaging

Joel A. Greenberg, Stefan Stryker, Josh Carpenter, Anuj J. Kapadia

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Proceedings Volume 11738, Anomaly Detection and Imaging with X-Rays (ADIX) VI; 1173806 (2021) https://doi.org/10.1117/12.2587061
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

Detecting illegal drugs in mailed packages without opening the package is a challenge. X-ray diffraction tomography offers the potential capability of uniquely identifying illegal drugs within a package based on their atomic structure. To understand the separability of different drug classes, we generated a library of X-ray diffraction drug signatures and explored them using dimensionality reduction techniques. In addition, we used a compact, multi-modality fan beam Xray imaging system (combining transmission and X-ray diffraction) to distinguish oxycodone from non-prescription medicine when concealed within different types of containment.

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Joel A. Greenberg, Stefan Stryker, Josh Carpenter, and Anuj J. Kapadia "Concealed drug detection via fan beam coded-aperture x-ray diffraction imaging", Proc. SPIE 11738, Anomaly Detection and Imaging with X-Rays (ADIX) VI, 1173806 (19 April 2021); https://doi.org/10.1117/12.2587061

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KEYWORDS

X-ray diffraction

Fluctuations and noise

Scanners

Prototyping

Tomography

X-rays

Coded apertures

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