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Geometric shielding corrections for total cross section calculations of electron scattering by CH4, C2H6, C2H3F3, C2H4, C2F4, C2Cl4 and C2Cl2F2 from 30–5000 eV
- Source :
-
European Physical Journal D (EPJ D) . Feb2008, Vol. 46 Issue 2, p253-259. 7p. 7 Graphs. - Publication Year :
- 2008
-
Abstract
- To quantify the changes in the geometric shielding effect in a molecule as the incident electron energy varies, an empirical fraction, which represents the total cross section contributions of shielded atoms in a molecule at different energies, is presented. Using this empirical fraction, the total cross sections for electron scattering by CH4, C2H6, C2H3F3, C2H4, C2F4, C2Cl4 and C2Cl2F2 are calculated over a wide energy range from 30 to 5000 eV by the additivity rule model at the Hartree-Fock level. The quantitative total cross sections are compared with those obtained by experiment and other theories where available. Good agreement is attained above 100 eV. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14346060
- Volume :
- 46
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- European Physical Journal D (EPJ D)
- Publication Type :
- Academic Journal
- Accession number :
- 27018085
- Full Text :
- https://doi.org/10.1140/epjd/e2007-00235-1