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Proceedings Paper

Standoff infrared detection of explosives at laboratory scale
Author(s): Leonardo Pacheco-Londoño; Oliva M. Primera-Pedrozo; Michael Ramírez; Orlando Ruiz; Samuel P. Hernández-Rivera
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Paper Abstract

An actively operated standoff infrared detection system was designed from commercial infrared equipment: VECTOR 22 FTIR (Bruker Optics), an external mirror and an external MCT detector. One type of experiment was done for IR detection of high explosives RDX and TNT on reflective surfaces. In the detection on surface, the samples were move to different distances and a beam of infrared light was reflect on surface in angle of ~ 0° (backward collection from surface normal). First the samples: 2 to 30 μg/cm2 of high explosives TNT and RDX were characterized after depositing on stainless steel reflective surfaces using Reflection-Absorption Infrared Spectroscopy (RAIS). Then targets were moved to increasing distances: 3 to 12 feet and remote-sensed spectra were collected in active reflectance mode. The limits of detection were determined for all distances measured in both nitroexplosives. Limit of detection of 18 and 20 μg/cm2 for TNT and RDX respectively in the longest distances measured.

Paper Details

Date Published: 18 May 2006
PDF: 8 pages
Proc. SPIE 6206, Infrared Technology and Applications XXXII, 620634 (18 May 2006); doi: 10.1117/12.666535
Show Author Affiliations
Leonardo Pacheco-Londoño, Univ. of Puerto Rico Mayagüez (United States)
Oliva M. Primera-Pedrozo, Univ. of Puerto Rico Mayagüez (United States)
Michael Ramírez, Univ. of Puerto Rico Mayagüez (United States)
Orlando Ruiz, Univ. of Puerto Rico Mayagüez (United States)
Samuel P. Hernández-Rivera, Univ. of Puerto Rico Mayagüez (United States)

Published in SPIE Proceedings Vol. 6206:
Infrared Technology and Applications XXXII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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