Carbon K-shell excitation in small molecules by high-resolution electron impact
- 14 January 1979
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 12 (1), 137-157
- https://doi.org/10.1088/0022-3700/12/1/020
Abstract
The excitation of 1s carbon electrons has been observed in CO, CH4, CF4, CO2, COS, C2H2 and C2H4 by means of the electron energy-loss technique with high resolution (70 meV in the 300 eV excitation energy range) and at an incident electron energy of 1.5 keV. The energies, widths and vibrational structures of excited states corresponding to the promotion of 1s carbon electrons to unoccupied valence and Rydberg orbitals have been obtained. The validity of the equivalent-core model, and the role of resonances caused by potential barriers, are discussed.Keywords
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