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Resonance-Enhanced Raman Spectroscopy on Explosives Vapor at Standoff Distances
Joint Authors
Johansson, Ida
Ehlerding, Anneli
Wallin, Sara
Östmark, Henric
Source
International Journal of Spectroscopy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-22
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Resonance-enhanced Raman spectroscopy has been used to perform standoff measurements on nitromethane (NM), 2,4-DNT, and 2,4,6-TNT in vapor phase.
The Raman cross sections for NM, DNT, and TNT in vapor phase have been measured in the wavelength range 210–300 nm under laboratory conditions, in order to estimate how large resonance enhancement factors can be achieved for these explosives.
The results show that the signal is enhanced up to 250,000 times for 2,4-DNT and up to 60,000 times for 2,4,6-TNT compared to the nonresonant signal at 532 nm.
Realistic outdoor measurements on NM in vapor phase at 13 m distance were also performed, which indicate a potential for resonance Raman spectroscopy as a standoff technique for detection of vapor phase explosives.
In addition, the Raman spectra of acetone, ethanol, and methanol were measured at the same wavelengths, and their influence on the spectrum from NM was investigated.
American Psychological Association (APA)
Ehlerding, Anneli& Johansson, Ida& Wallin, Sara& Östmark, Henric. 2012. Resonance-Enhanced Raman Spectroscopy on Explosives Vapor at Standoff Distances. International Journal of Spectroscopy،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-450505
Modern Language Association (MLA)
Ehlerding, Anneli…[et al.]. Resonance-Enhanced Raman Spectroscopy on Explosives Vapor at Standoff Distances. International Journal of Spectroscopy No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-450505
American Medical Association (AMA)
Ehlerding, Anneli& Johansson, Ida& Wallin, Sara& Östmark, Henric. Resonance-Enhanced Raman Spectroscopy on Explosives Vapor at Standoff Distances. International Journal of Spectroscopy. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-450505
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-450505