Active Mode Remote Infrared Spectroscopy Detection of TNT and PETN on Aluminum Substrates
Two standoff detection systems were assembled using an infrared telescope coupled to a Fourier transform infrared spectrometer, a cryocooled mercury-cadmium telluride detector, and a telescope-coupled midinfrared excitation source. Samples of the highly energetic materials (HEMs) 2,4,6-trinitrotolue...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2017/2730371 |
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| author | John R. Castro-Suarez Leonardo C. Pacheco-Londoño Joaquín Aparicio-Bolaño Samuel P. Hernández-Rivera |
| author_facet | John R. Castro-Suarez Leonardo C. Pacheco-Londoño Joaquín Aparicio-Bolaño Samuel P. Hernández-Rivera |
| author_sort | John R. Castro-Suarez |
| collection | DOAJ |
| description | Two standoff detection systems were assembled using an infrared telescope coupled to a Fourier transform infrared spectrometer, a cryocooled mercury-cadmium telluride detector, and a telescope-coupled midinfrared excitation source. Samples of the highly energetic materials (HEMs) 2,4,6-trinitrotoluene (TNT) and pentaerythritol tetranitrate (PETN) were deposited on aluminum plates and detected at several source-target distances by carrying out remote infrared spectroscopy (RIRS) measurements on the aluminum substrates in active mode. The samples tested were placed at 1–30 m for the RIRS detection experiments. The effect of the angle of incidence/collection of the IR beams on the vibrational band intensities and the signal-to-noise ratios (S/N) were investigated. Experiments were performed at ambient temperature. Surface concentrations from 50 to 400 μg/cm2 were studied. Partial least squares regression analysis was applied to the spectra obtained. Overall, RIRS detection in active mode was useful for quantifying the HEMs deposited on the aluminum plates with a high confidence level up to the target-collector distances of 1–25 m. |
| format | Article |
| id | doaj-art-c91b0d6e5ef640fe9759f45758164556 |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-c91b0d6e5ef640fe9759f457581645562025-02-03T01:12:32ZengWileyJournal of Spectroscopy2314-49202314-49392017-01-01201710.1155/2017/27303712730371Active Mode Remote Infrared Spectroscopy Detection of TNT and PETN on Aluminum SubstratesJohn R. Castro-Suarez0Leonardo C. Pacheco-Londoño1Joaquín Aparicio-Bolaño2Samuel P. Hernández-Rivera3ALERT DHS Center of Excellence for Explosives Research, Department of Chemistry, University of Puerto Rico-Mayagüez, Mayagüez, PR 00681, USAALERT DHS Center of Excellence for Explosives Research, Department of Chemistry, University of Puerto Rico-Mayagüez, Mayagüez, PR 00681, USADepartment of Physics, University of Puerto Rico, Ponce, PR 00732, USAALERT DHS Center of Excellence for Explosives Research, Department of Chemistry, University of Puerto Rico-Mayagüez, Mayagüez, PR 00681, USATwo standoff detection systems were assembled using an infrared telescope coupled to a Fourier transform infrared spectrometer, a cryocooled mercury-cadmium telluride detector, and a telescope-coupled midinfrared excitation source. Samples of the highly energetic materials (HEMs) 2,4,6-trinitrotoluene (TNT) and pentaerythritol tetranitrate (PETN) were deposited on aluminum plates and detected at several source-target distances by carrying out remote infrared spectroscopy (RIRS) measurements on the aluminum substrates in active mode. The samples tested were placed at 1–30 m for the RIRS detection experiments. The effect of the angle of incidence/collection of the IR beams on the vibrational band intensities and the signal-to-noise ratios (S/N) were investigated. Experiments were performed at ambient temperature. Surface concentrations from 50 to 400 μg/cm2 were studied. Partial least squares regression analysis was applied to the spectra obtained. Overall, RIRS detection in active mode was useful for quantifying the HEMs deposited on the aluminum plates with a high confidence level up to the target-collector distances of 1–25 m.http://dx.doi.org/10.1155/2017/2730371 |
| spellingShingle | John R. Castro-Suarez Leonardo C. Pacheco-Londoño Joaquín Aparicio-Bolaño Samuel P. Hernández-Rivera Active Mode Remote Infrared Spectroscopy Detection of TNT and PETN on Aluminum Substrates Journal of Spectroscopy |
| title | Active Mode Remote Infrared Spectroscopy Detection of TNT and PETN on Aluminum Substrates |
| title_full | Active Mode Remote Infrared Spectroscopy Detection of TNT and PETN on Aluminum Substrates |
| title_fullStr | Active Mode Remote Infrared Spectroscopy Detection of TNT and PETN on Aluminum Substrates |
| title_full_unstemmed | Active Mode Remote Infrared Spectroscopy Detection of TNT and PETN on Aluminum Substrates |
| title_short | Active Mode Remote Infrared Spectroscopy Detection of TNT and PETN on Aluminum Substrates |
| title_sort | active mode remote infrared spectroscopy detection of tnt and petn on aluminum substrates |
| url | http://dx.doi.org/10.1155/2017/2730371 |
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