2010•Applied SpectroscopyRequires access

Deep Ultraviolet Resonance Raman Excitation Enables Explosives Detection

David D. Tuschel, Aleksandr V. Mikhonin, B. E. Lemoff, Sanford A. Asher

Abstract

We measured the 229 nm absolute ultraviolet (UV) Raman cross-sections of the explosives trinitrotoluene (TNT), pentaerythritol tetranitrate (PETN), cyclotrimethylene-trinitramine (RDX), the chemically related nitroamine explosive HMX, and ammonium nitrate in solution. The 229 nm Raman cross-sections are 1000-fold greater than those excited in the near-infrared and visible spectral regions. Deep UV resonance Raman spectroscopy enables detection of explosives at parts-per-billion (ppb) concentrations and may prove useful for stand-off spectroscopic detection of explosives.

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Key concepts: Pentaerythritol tetranitrate, Trinitrotoluene, Explosive material, Raman spectroscopy, Ultraviolet, Analytical Chemistry (journal), Chemistry, Explosive detection