6533b7d2fe1ef96bd125e385
RESEARCH PRODUCT
Nitrogen broadening of SF6 transitions in the nu3 band
Tony GabardNelly LacomeG. PierreRobert R. Gamachesubject
010504 meteorology & atmospheric sciences[ PHYS.QPHY ] Physics [physics]/Quantum Physics [quant-ph]Organic Chemistrychemistry.chemical_elementSulfur hexafluoride01 natural sciencesNitrogenAnalytical ChemistryMarie curieInorganic ChemistrySulfur hexafluoridechemistry.chemical_compoundFormalism (philosophy of mathematics)chemistry[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]0103 physical sciencesIntermolecular potentialTemperature dependence of the halfwidthHalfwidthsAtomic physicsLine broadening010306 general physicsSpectroscopy0105 earth and related environmental sciencesdescription
Abstract Nitrogen induced pressure-broadened halfwidths of a number of ν3 transitions of SF6 are calculated using the complex Robert–Bonamy (CRB) formalism. The calculations are made at 200, 250, 296 and 350 K and the temperature dependence of the halfwidths are determined. The intermolecular potential is taken as a sum of the leading electrostatic and Lennard-Jones [6] , [7] , [8] , [9] , [10] , [11] , [12] atom–atom components. The dynamics of the collision process are correct to second order in time. The calculated halfwidths are used to simulate the ν3 spectrum, which is compared to a simulation made using the HITRAN96 halfwidths and measurements made at the Universite Pierre et Marie Curie. It is shown that simulations made using the halfwidths calculated in this work are in better agreement with the measurements.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-12-01 |