Scaling Cross Sections for Ion-atom Impact Ionization
Abstract
The values of ion-atom ionization cross sections are frequently needed for many applications that utilize the propagation of fast ions through matter. When experimental data and theoretical calculations are not available, approximate formulas are frequently used. This paper briefly summarizes the most important theoretical results and approaches to cross section calculations in order to place the discussion in historical perspective and offer a concise introduction to the topic. Based on experimental data and theoretical predictions, a new fit for ionization cross sections is proposed. The range of validity and accuracy of several frequently used approximations (classical trajectory, the Born approximation, and so forth) are discussed using, as examples, the ionization cross sections of hydrogen and helium atoms by various fully stripped ions.
- Authors:
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC) (US)
- OSTI Identifier:
- 814022
- Report Number(s):
- PPPL-3819
TRN: US0303977
- DOE Contract Number:
- AC02-76CH03073
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: 6 Jun 2003
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 08 HYDROGEN; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCURACY; ATOMS; BORN APPROXIMATION; CROSS SECTIONS; HELIUM; HYDROGEN; IONIZATION; ATOMIC PHYSICS; RECOMBINATION; ATOMIC AND MOLECULAR PHYSICS; BEAMS, REB; IONIZATION AND RECOMBINATION
Citation Formats
Kaganovich, Igor D, Startsev, Edward, and Davidson, Ronald C. Scaling Cross Sections for Ion-atom Impact Ionization. United States: N. p., 2003.
Web. doi:10.2172/814022.
Kaganovich, Igor D, Startsev, Edward, & Davidson, Ronald C. Scaling Cross Sections for Ion-atom Impact Ionization. United States. https://doi.org/10.2172/814022
Kaganovich, Igor D, Startsev, Edward, and Davidson, Ronald C. 2003.
"Scaling Cross Sections for Ion-atom Impact Ionization". United States. https://doi.org/10.2172/814022. https://www.osti.gov/servlets/purl/814022.
@article{osti_814022,
title = {Scaling Cross Sections for Ion-atom Impact Ionization},
author = {Kaganovich, Igor D and Startsev, Edward and Davidson, Ronald C},
abstractNote = {The values of ion-atom ionization cross sections are frequently needed for many applications that utilize the propagation of fast ions through matter. When experimental data and theoretical calculations are not available, approximate formulas are frequently used. This paper briefly summarizes the most important theoretical results and approaches to cross section calculations in order to place the discussion in historical perspective and offer a concise introduction to the topic. Based on experimental data and theoretical predictions, a new fit for ionization cross sections is proposed. The range of validity and accuracy of several frequently used approximations (classical trajectory, the Born approximation, and so forth) are discussed using, as examples, the ionization cross sections of hydrogen and helium atoms by various fully stripped ions.},
doi = {10.2172/814022},
url = {https://www.osti.gov/biblio/814022},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jun 06 00:00:00 EDT 2003},
month = {Fri Jun 06 00:00:00 EDT 2003}
}