Temperature-dependent infrared absorption cross sections of methyl cyanide (acetonitrile) |
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Authors: | Curtis P Rinsland Steven W Sharpe |
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Institution: | a NASA Langley Research Center, 21 Langley Boulevard, Mail Stop 401A, Hampton, VA 23681-2199 USA b Pacific Northwest National Laboratory (PNNL), P.O. Box 999, Mail Stop K8-88, Richland, WA 99352 USA |
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Abstract: | Pressure broadened (1 atm. N2) absorption cross sections and integrated band intensities have been derived from laboratory spectra of CH3CN, recorded at 276, 298, and 323 K, covering 600-. The spectra were recorded at a resolution of using a commercial Fourier transform spectrometer and a custom flowing sample delivery system. We report integrated absorption cross sections for intervals corresponding to the most prominent bands, compare the results with previously reported values, and discuss error sources, which are estimated as ∼7% with systematic error the largest error source. |
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Keywords: | Absorption cross section Infrared Methyl cyanide acetonitrile Laboratory spectroscopy Transmission and scattering of radiation Pollution |
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