Loading...
Please wait, while we are loading the content...
Similar Documents
Raman spectra and cross sections of ammonia , chlorine , hydrogen sulfide , phosgene , and sulfur dioxide toxic gases in the fingerprint region 400 ‐ 1400
| Content Provider | Semantic Scholar |
|---|---|
| Author | Aggarwal, R. L. Farrar, Lewis W. Cecca, Salvatore Di Jeys, Thomas H. |
| Copyright Year | 2017 |
| Abstract | Raman spectra of ammonia (NH3), chlorine (Cl2), hydrogen sulfide (H2S), phosgene (COCl2), and sulfur dioxide (SO2) toxic gases have been measured in the fingerprint region 400‐1400 cm‐1. A relatively compact (< 2’x2’x2’), sensitive, 532 nm 10 W CW Raman system with double‐pass laser and double‐sided collection was used for these measurements. Two Raman modes are observed at 934 and 967 cm‐1 in NH3. Three Raman modes are observed in Cl2 at 554, 547, and 539 cm‐1, which are due to the 35/35 35/37, and 37/37 Cl isotopes, respectively. Raman modes are observed at 870, 570, and 1151 cm‐1 in H2S, COCl2, and SO2, respectively. Values of 4.63±0.32x10‐31, 1.72±0.12x10‐29, 4.09±0.29x10‐30, 2.05±0.14x10‐29, and 3.87±0.27x10‐29 cm2 were determined for the Raman cross section of the 967 cm‐1 mode of NH3, sum of the 554, 547, and 539 cm‐1 modes of Cl2, 870 cm‐1 mode of H2S, 570 cm‐1 mode of COCl2, and 1151 cm‐1 mode of SO2, respectively, using the Raman cross section of 4.5±0.18x10‐30 cm2 for the 1285 cm‐1 mode of CO2 as the reference. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.dtic.mil/dtic/tr/fulltext/u2/1034501.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
