Electron scattering from vibrationally excited CO2
- 14 October 1987
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 20 (19) , 5175-5182
- https://doi.org/10.1088/0022-3700/20/19/027
Abstract
The total cross section for electron scattering from vibrationally excited (principally 010) CO2 molecules has been measured in the energy range 0.12-2.0 eV with a time of flight electron spectrometer. The vibrationally excited molecules were produced by thermal excitation of the gas contained in a scattering cell at a temperature of 300 degrees C. The cross section for scattering from these excited molecules was deduced by comparison with similar measurements performed at room temperature. At energies below 2 eV the excited-state cross section is considerably larger than that for scattering from ground-state CO2. The ground-state measurements are in excellent agreement with other recent experimental and theoretical work. No other experimental or theoretical data exist for the excited-state cross section.Keywords
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