Skip to main content
SpringerLink
Log in

Indirect processes in the electron-impact ionization of Li-like ions

  • Original Contributions
  • Published:
Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

Detailed measurements of electron-impact ionization cross sections have been made in the vicinity of the excitation-autoionization thresholds of Li-like B2+, C3+, N4+, O5+ and F6+ ions. With an energy spread of 0.4 to 1% of the electron energy and statistical uncertainties as low as 0.1% we could clearly resolve thresholds for excitation of individual terms in 1s2s2l configurations. Numerous resonance features were found which are due to dielectronic capture of the incident electron with subsequent two-electron emission. In particular, dielectronic capture processes involving Δn=2 excitations of a 1s electron provide the dominant resonance contributions to the measured cross sections. Rydberg series 1s2snln′l′ of resonances withn=3 (Δn=2) andn=4 (Δn=3) are resolved up to principle quantum numbersn′ equal to 6 or 7.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Müller, A.: In: Physics of ion impact phenomena. Berlin, Heidelberg, New York: Springer 1990 (in preparation)

    Google Scholar 

  2. Kunze, H.-J.: Phys. Rev. A3, 937 (1971)

    Google Scholar 

  3. Källne, E., Jones, L.A.: J. Phys. B10, 3637 (1977)

    Google Scholar 

  4. Donets, E.D.: IEEE Trans. Nucl. Sci. NS23, 897 (1976)

    Google Scholar 

  5. Donets, E.D., Ovsyannikov, V.P.: Report No. P7-10780 of the Joint Institute of Nuclear Research, Dubna, USSR

  6. Crandall, D.H., Phaneuf, R.A., Taylor, P.O.: Phys. Rev. A18, 1911 (1978)

    Google Scholar 

  7. Crandall, D.H., Phaneuf, R.A., Hasselquist, B.E., Gregory, D.C.: J. Phys. B12, L249 (1979)

  8. Henry, R.J.W.: J. Phys. B12, L309 (1979)

  9. Sampson, D.H., Golden, L.B.: J. Phys. B12, L785 (1979); J. Phys. B14, 903 (1981)

    Google Scholar 

  10. Jakubowicz, H., Moores, D.L.: J. Phys. B14, 3733 (1981)

    Google Scholar 

  11. Falk, R.A., Dunn, G.H.: Phys. Rev. A27, 754 (1983)

    Google Scholar 

  12. Crandall, D.H., Phaneuf, R.A., Gregory, D.C., Howald, A.M., Mueller, D.W., Morgan, T.J., Dunn, G.H., Griffin, D.C., Henry, R.J.W.: Phys. Rev. A34, 1757 (1986)

    Google Scholar 

  13. Rinn, K., Gregory, D.C., Wang, L.J., Phaneuf, R.A., Müller, A.: Phys. Rev. A36, 595 (1987)

    Google Scholar 

  14. Pindzola, M.S., Griffin, D.C.: Phys. Rev. A36, 2628 (1987)

    Google Scholar 

  15. Henry, R.J.W., Msezane, A.Z.: Phys. Rev. A26, 2545 (1982)

    Google Scholar 

  16. Müller, A., Tinschert, K., Hofmann, G., Salzborn, E., Dunn, G.H.: Phys. Rev. Lett.61, 70 (1988)

    Google Scholar 

  17. Müller, A., Hofmann, G., Tinschert, K., Salzborn, E.: Phys. Rev. Lett.61, 1352 (1988)

    Google Scholar 

  18. LaGattuta, K.J., Hahn, Y.: Phys. Rev. A24, 2273 (1981)

    Google Scholar 

  19. Tinschert, K., Müller, A., Hofmann, G., Huber, K., Becker, R., Gregory, D.C., Salzborn, E.: J. Phys. B22, 531 (1989)

    Google Scholar 

  20. Falk, R.A., Stefani, G., Camilloni, R., Dunn, G.H., Phaneuf, R.A., Gregory, D.C., Crandall, D.H.: Phys. Rev. A28, 91 (1983)

    Google Scholar 

  21. Müller, A., Huber, K., Tinschert, K., Becker, R., Salzborn, E.: J. Phys. B18, 3011 (1985);

    Google Scholar 

  22. Müller, A., Tinschert, K., Achenbach, C., Salzborn, E., Becker, R.: Nucl. Instrum. Methods Phys. Res. B10/11, 204 (1985)

    Google Scholar 

  23. Müller, A., Hofmann, G., Tinschert, K., Sauer, R., Salzborn, E., Becker, R.: Nucl. Instr. Methods Phys. Res. B24/25, 369 (1987)

    Google Scholar 

  24. Müller, A., Hofmann, G., Weissbecker, B., Stenke, M., Tinschert, K., Wagner, M., Salzborn, E.: Phys. Rev. Lett.63, 758 (1989)

    Google Scholar 

  25. Defrance, P.: J. Phys., Coll. C1. [Suppl.]50, C1–229 (1989); Proceedings of the International Conference on the Physics of Multiply Charged Ions and International Workshop on E.C.R. Ion Sources, Grenoble, Sept. 12.–16., 1988

    Google Scholar 

  26. Younger, S.M.: Phys. Rev. A22, 111 (1980); J. Quant. Spectrosc. Radiat. Transfer26, 329 (1981)

    Google Scholar 

  27. Stolterfoht, N.: Phys. Reports146, 315 (1987)

    Google Scholar 

  28. Rødbro, M., Bruch, R., Bisgaard, P.: J. Phys. B12, 2413 (1979)

    Google Scholar 

  29. Müller, A.: In: Electronic and atomic collisions, invited papers of the XVIth Int. Conf. on Elec. and At. Coll., New York, 1989 (in print)

  30. Chen, M.H., Crasemann, B.: At. Data Nucl. Data Tables37, 419 (1987)

    Google Scholar 

  31. Safronova, U.I., Lisina, T.G.: At. Data Nucl. Data Tables24, 49 (1979)

    Google Scholar 

  32. Grant, I.P., McKenzie, B.J., Norrington, P.H.: Comp. Phys. Commun.21, 207 (1980)

    Google Scholar 

Download references

Author information

Author notes

  1. K. Tinschert

    Present address: GSI, Darmstadt

Authors and Affiliations

  1. Institut für Kernphysik, Universität Giessen, D-6300, Giessen, Federal Republic of Germany

    G. Hofmann, A. Müller, K. Tinschert & E. Salzborn

Authors
  1. G. Hofmann
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. Müller
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. K. Tinschert
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. E. Salzborn
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

The present work contains parts of G. Hofmann's Thesis, Giessen D26

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hofmann, G., Müller, A., Tinschert, K. et al. Indirect processes in the electron-impact ionization of Li-like ions. Z Phys D - Atoms, Molecules and Clusters 16, 113–127 (1990). https://doi.org/10.1007/BF01679572

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01679572

PACS

Search

Navigation