Liquid explosives detection in transparent containers

M. Gaft; L. Nagli

doi:10.1117/12.852543

29 April 2010 Liquid explosives detection in transparent containers

M. Gaft, L. Nagli

Proceedings Volume 7664, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XV; 76641N (2010) https://doi.org/10.1117/12.852543
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

The principal possibility to recognize liquid explosives and their components in various glass and plastic containers with different transparency in visible spectral range was demonstrated. Acetone was used as a target, as alone and mixed with traditional liquids. The advantage of gated Raman spectroscopy over the CW was proved. It was found that using 532 nm, 6 ns laser pulses any real target with characteristic Raman spectrum with intensity similar to those for acetone may be detected in 100 % of glass and in 80 % of plastic containers. The mixing with different liquid makes detection more difficult and acetone was detected in 55 % of studied cases. The main reasons for detection difficulties are intrinsic Raman and luminescence of plastic containers and liquids relevant to airport passengers. In case of strong luminescence the advantages of red light excitation over green light was demonstrated.

Citation Download Citation

M. Gaft and L. Nagli "Liquid explosives detection in transparent containers", Proc. SPIE 7664, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XV, 76641N (29 April 2010); https://doi.org/10.1117/12.852543

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