Standoff LIBS measurements of energetic materials using a 266nm excitation laser

Robert D. Waterbury; Avishekh Pal; Dennis K. Killinger; Jeremy Rose; Edwin L. Dottery; Guy Ontai

doi:10.1117/12.778668

17 April 2008 Standoff LIBS measurements of energetic materials using a 266nm excitation laser

Robert D. Waterbury, Avishekh Pal, Dennis K. Killinger, Jeremy Rose, Edwin L. Dottery, Guy Ontai

Proceedings Volume 6954, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing IX; 695409 (2008) https://doi.org/10.1117/12.778668
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

A Deep-UV LIBS system has been constructed for the standoff detection of Explosives, and potentially Chemical, Biological, Radiological, and Nuclear (CBRN) substances. A Q-Switched Nd:YAG Laser operating in at 266nm was used for excitation of the LIBS plasma and future Raman excitation. This plasma was enhanced by the means of a nearly simultaneous CO₂ laser which results in a method referred to as Townsend Effect Plasma Spectroscopy (TEPS). Spectra covering the range of 240-800nm at standoff distances are presented. The classical emission lines (i.e. C, N, O, H, etc) of the energetic samples were observed and a peak ratio technique was used to differentiate between benign and energetic samples of interest.

Citation Download Citation

Robert D. Waterbury, Avishekh Pal, Dennis K. Killinger, Jeremy Rose, Edwin L. Dottery, and Guy Ontai "Standoff LIBS measurements of energetic materials using a 266nm excitation laser", Proc. SPIE 6954, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing IX, 695409 (17 April 2008); https://doi.org/10.1117/12.778668

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