Measurement of the free-free cross section of e--Ar scattering
- 15 June 1978
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 11 (13), 2355-2360
- https://doi.org/10.1088/0022-3700/11/13/019
Abstract
Free-free transitions have been observed in electron-argon scattering in the presence of the radiative field of a CO2 laser. The ratio of the free-free and elastic differential cross sections has been determined at a scattering angle of 160 degrees and electron energies of 5, 11.15 and 16 eV. Good agreement was found with the soft-photon approximation at 11.15 and 16 eV. At 5 eV the correspondence was not as good, possibly indicating the expected failure of this approach towards lower electron energies.Keywords
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