Relative infrared (IR) and terahertz (THz) signatures of common explosives

S. W. Sharpe; T. J. Johnson; D. M. Sheen; D. A. Atkinson

doi:10.1117/12.686432

25 October 2006 Relative infrared (IR) and terahertz (THz) signatures of common explosives

S. W. Sharpe, T. J. Johnson, D. M. Sheen, D. A. Atkinson

Proceedings Volume 6378, Chemical and Biological Sensors for Industrial and Environmental Monitoring II; 63780A (2006) https://doi.org/10.1117/12.686432
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

Pacific Northwest National Laboratory (PNNL) has recently recorded the infrared (IR) and far-infrared (FIR, sometimes also called the terahertz, THz) spectral signatures of four common explosives in the condensed phase. The signatures of RDX, PETN, TNT and Tetryl were recorded both in the infrared and the THz domains, using Fourier transform infrared (FTIR) spectroscopy. Samples consisted of thin films and were made by depositing and subsequent evaporation of an acetone-explosive mixture. The complete spectrum spanned the range from 4,000 to 8 cm-1 at 2.0 cm-1 spectral resolution. Preliminary results in the infrared agree with those of previous workers, while the THz signatures are one order of magnitude weaker than the strongest IR bands.

Citation Download Citation

S. W. Sharpe, T. J. Johnson, D. M. Sheen, and D. A. Atkinson "Relative infrared (IR) and terahertz (THz) signatures of common explosives", Proc. SPIE 6378, Chemical and Biological Sensors for Industrial and Environmental Monitoring II, 63780A (25 October 2006); https://doi.org/10.1117/12.686432

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