Abstract
The triple-differential cross sections for the ionization of and by a fast electron where the exiting electrons have energies of 20 eV and 1 keV have been measured and compared with distorted-wave Born calculations. Difficulties were encountered when trying to place the relative data on an absolute scale by extrapolation to the optical limit: an extensive study of this normalization process is presented and it is argued that it is not applicable to the heavier atoms considered here, but can be used effectively for helium targets.
- Received 10 June 1997
DOI:https://doi.org/10.1103/PhysRevA.56.4644
©1997 American Physical Society
