Elastic scattering of electrons from CO2in the intermediate energy range
- 28 March 1984
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 17 (6) , L185-L189
- https://doi.org/10.1088/0022-3700/17/6/006
Abstract
Ratios of elastic differential cross sections of CO2 to those of N2 have been measured at electron impact energies of 500, 800 and 1000 eV in the angular range of 5 degrees to 120 degrees , using a crossed electron-beam-molecular-beam geometry and the relative flow technique. These ratios have been multiplied by previously known N2 elastic differential cross sections to obtain elastic differential cross sections for CO2. At 500 eV, the authors' experimental results agree quite well with the absolute values of Bromberg (1974). Comparison has also been made with the theoretical results obtained in the renormalised multicentre potential model approach of Botelho et al. and shows an agreement within 20% in the entire angular range. The elastic integral and momentum transfer cross sections have also been determined from the differential cross sections.Keywords
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