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Title: 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., NJ (US)
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

Igor D. Kaganovich, Edward Startsev, and Ronald C. Davidson. Scaling Cross Sections for Ion-atom Impact Ionization. United States: N. p., 2003. Web. doi:10.2172/814022.
Igor D. Kaganovich, Edward Startsev, & Ronald C. Davidson. Scaling Cross Sections for Ion-atom Impact Ionization. United States. doi:10.2172/814022.
Igor D. Kaganovich, Edward Startsev, and Ronald C. Davidson. Fri . "Scaling Cross Sections for Ion-atom Impact Ionization". United States. doi:10.2172/814022. https://www.osti.gov/servlets/purl/814022.
@article{osti_814022,
title = {Scaling Cross Sections for Ion-atom Impact Ionization},
author = {Igor D. Kaganovich and Edward Startsev and Ronald C. Davidson},
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},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jun 06 00:00:00 EDT 2003},
month = {Fri Jun 06 00:00:00 EDT 2003}
}

Technical Report:

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