Improved atomic data for electron-transport predictions by the codes TIGER and TIGERP. I. Inner-shell ionization by electron collision

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The inner-shell ionization data for electron-target collisions now in use in the TIGER and TIGERP electron-transport codes are extracted and compared with other data for these processes. The TIGER cross sections for K-shell ionization by electron collisions are found to be seriously in error for large-Z targets and incident electron energies greater than 1 MeV. A series of TIGER and TIGERP runs were carried out with and without improved K-shell electron ionization cross section data replacing that now in use. The relative importance of electron-impact and photon ionization of the various subshells was also extracted from these runs. In general, ... continued below

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Peek, J.M. & Halbleib, J.A. January 1, 1983.

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The inner-shell ionization data for electron-target collisions now in use in the TIGER and TIGERP electron-transport codes are extracted and compared with other data for these processes. The TIGER cross sections for K-shell ionization by electron collisions are found to be seriously in error for large-Z targets and incident electron energies greater than 1 MeV. A series of TIGER and TIGERP runs were carried out with and without improved K-shell electron ionization cross section data replacing that now in use. The relative importance of electron-impact and photon ionization of the various subshells was also extracted from these runs. In general, photon ionization dominated in the examples studied so the sensitivity of many predicted properties to errors in the electron-impact subshell ionization data was not large. However, some differences were found and, as all possible applications were not covered in this study, it is recommended that these electron-impact data now in TIGER and TIGERP be replaced. Cross section data for the processes under study are reviewed and those that are most suitable for this application are identified. 19 references, 9 figures, 2 tables.

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NTIS, PC A03/MF A01.

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  • Other: DE84014308
  • Report No.: SAND-82-2887
  • Grant Number: AC04-76DP00789
  • DOI: 10.2172/5992262 | External Link
  • Office of Scientific & Technical Information Report Number: 5992262
  • Archival Resource Key: ark:/67531/metadc1101863

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1983

Added to The UNT Digital Library

  • Feb. 18, 2018, 3:59 p.m.

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  • May 18, 2018, 1:46 p.m.

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Peek, J.M. & Halbleib, J.A. Improved atomic data for electron-transport predictions by the codes TIGER and TIGERP. I. Inner-shell ionization by electron collision, report, January 1, 1983; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc1101863/: accessed May 27, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.