A portable discrete frequency NQR explosives detection system

Todd Nichols; Shaun Gidcumb; Thomas Ketterl; Greg Brauns

doi:10.1117/12.2518719

10 May 2019 A portable discrete frequency NQR explosives detection system

Todd Nichols, Shaun Gidcumb, Thomas Ketterl, Greg Brauns

Proceedings Volume 11012, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXIV; 110120O (2019) https://doi.org/10.1117/12.2518719
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

This paper describes realization of a prototype discrete-frequency self-contained NQR system into a small portable battery powered form-factor capable of detecting and classifying explosive ingredients such as sodium nitrite, ammonium nitrate, RDX, HMX, PETN, potassium nitrate, tetryl, urea nitrate, and glycine. Size is similar to the smallest commercially available NMR spectrometer, but includes all system components. This version uses fixed frequencies and simple pulse sequences to prove feasibility. Results include signature amplitude variation as a function of both sample mass and standoff, and detection unaffected by presence of both metallic and non-metallic clutter.

Conference Presentation

Citation Download Citation

Todd Nichols, Shaun Gidcumb, Thomas Ketterl, and Greg Brauns "A portable discrete frequency NQR explosives detection system", Proc. SPIE 11012, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXIV, 110120O (10 May 2019); https://doi.org/10.1117/12.2518719

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