Ion-atom collisions have been of interest to the general physics community because of their relevance to the penetration of charged particles in matter. As fast, charged ions pass through matter they ejected electrons from the atomic constituants. These electrons initiate physical and chemical changes known as radiation damage. For this reason the spectra electrons ejected by fast, positively charged ions have been of studied from the early days of the quantum theory. The Born approximation, for example, is well-adapted to analyze the excitation and ionization of atoms and molecules by fast ions. Measurements of excitation and ionization cross sections at high energy are typically understood in terms of concepts, e.g. the generalized oscillator strength, that have their origins in the Born theory(Fano 1963, Inokuti 1971). On average, exciation and ionization by high-energy ions are well understood in terms of the first Born approximation.
KeywordsBorn Approximation Fermi Acceleration Total Ionization Cross Section High Energy Theory Minus Sheet
Unable to display preview. Download preview PDF.
- Yu. N. Demkov, in Proceedings of Invited Talks of the Fifth International Conference on the Physics of Electronic and Atomic Collisions, Leningrad, 1967, edited by I. P. Flaks and E. S. Solovyev (Joint Institute for Laboratory Astrophysics, Boulder, CO, 1968), p. 186.Google Scholar
- R. Dörner, H. Khemliche, M. H. Prior, C. L. Cocke, J. A. Gary, R. E. Olson, V. Mergel, J. Ullrich, and H. Schmidt-Böcking, Phys. Rev. Lett. 77, 4250 (1996).Google Scholar
- R. Dörner, in Proceedings of the I9’th ICPEAC, Whistler, Canada, 26 July 1995, ed. by J.B.A. Mitchell, J. W. McConkey and C. E. Brian, p 756, and private communication.Google Scholar
- T. J. Gay, in Two-center effects in ion-atom collisions, ed. by T. J. Gay and A. F. Starace, AIP conference proceedings 362}, 1994}, p 1Google Scholar
- J. H. Macek, S. Yu. Ovchinnikov and E. A Solov’ev, in preparation.Google Scholar
- M. E. Rudd and J. H. Macek, Case Studies in Atomic Physics 3, 47 (1972).Google Scholar
- R. E. Olson, Phys. Rev. A 33, 4397.Google Scholar
- E. A. Solov’ev,.Zh. Eks. Teor. Fiz. 81, 1681 (1981) [Sov. Phys. JETP 54, 893 (1981)].Google Scholar