Detection of Energetic Materials and Explosive Residues With Laser-Induced Breakdown Spectroscopy: 2: Stand-off Measurements

Abstract

We have developed a double pulse stand-off laser-induced breakdown spectroscopy (LIBS) system capable of detecting explosive residues as far as 50 m. As described in an earlier report (ARL-TR-4240), the use of a double pulse laser improves the sensitivity and selectivity of LIBS for the detection of energetic materials. This report discusses the extension of these studies to stand-off distances. The efficacy of chemometric techniques such as linear correlation, principal components analysis, and partial least squares discriminant analysis for the identification of explosive residues is also discussed. We have shown that despite the typical characterization of LIBS as an elemental technique, the relative elemental intensities in the LIBS spectra are representative of the stoichiometry of the parent molecules and can be used to discriminate materials containing the same elements.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2007
Accession Number
ADA472708

Entities

People

  • Andrzej W. Miziolek
  • Chase A. Munson
  • Christopher Ford
  • Frank C. De Lucia Jr.
  • Jennifer L Gottfried

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • C4I
  • Counter IED
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Entrainment
  • Charge Coupled Devices
  • Detection
  • Detectors
  • Energetic Materials
  • Explosives
  • Explosives Detection
  • Information Science
  • Laser-Induced Breakdown Spectroscopy
  • Lasers
  • Materials
  • Materials Laboratories
  • Measurement
  • Organic Materials
  • Rdx
  • Spectra
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Pulsed Power and Plasma Physics.
  • Regression Analysis.
  • Rocket Propulsion.

Technology Areas

  • Directed Energy