Skip to main content
SpringerLink
Log in

Fourfold ionization by electrons near the threshold

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

Abstract

Threshold law for the processe+A q+→A(q+4)++5e has been derived within the classical theory. For neutral targets (q=0) the threshold exponent assumes value 5.08, consistent with previous calculations for ionizations of lower orders. The method fails forq<−4. The results are compared with recent experimental measurements, which considerably underestimate theoretical findings. An empirical formula forn-fold ionization is provided, which predicts values for the threshold exponent κ=7.8 and 12.5 forn=5, 6 respectively.

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. Peterkop, R.: Theory of ionization of atoms by electron impact. Riga: Zinatne 1975 [Engl. Transl.: Boulder: Colorado University Press 1977]; Read, F.H.: In: Electron impact ionization. Mark, T., Dunn, G. (eds), p. 42. Berlin, Heidelberg, New York: Springer 1985

    Google Scholar 

  2. Wannier, G.H.: Phys. Rev.90, 817 (1953)

    Google Scholar 

  3. Samson, A.R., Angel, G.C.: Phys. Rev. Lett.61, 1584 (1988)

    Google Scholar 

  4. Lebius, H., Binder, J., Koslowski, H.R., Wiesemann, K., Huber, B.A.: J. Phys. B: At. Mol. Opt. Phys.22, 83 (1989)

    Google Scholar 

  5. Koslowski, H.R., Binder, J., Huber, B.A., Wiesemann, K.: J. Phys. B: At. Mol. Phys.20, 5903 (1987)

    Google Scholar 

  6. Grujić, P., Koledin, D.: In: Proceedings of the 3rd ECAMP, Bordeaux 1989. Salin, A. (ed.), Vol.13C, p. 310

  7. Klar, H., Schlecht, W.: J. Phys. B: At. Mol. Phys.9, 1699 (1976)

    Google Scholar 

  8. Grujić, P.: J. Phys. B: At. Mol. Phys.16, 2567 (1983)

    Google Scholar 

  9. Grujić, P.: Phys. Lett.96a, 233 (1983)

    Google Scholar 

  10. Wannier, G.H.: Phys. Rev.100, 1180 (1955)

    Google Scholar 

  11. Klar, H.: J. Phys. B: At. Mol. Phys.14, 3255 (1981); see also Hippler, R., Klar, H., Saeed, K., McGregor, I., Duncan, A., Kleinpopen, H., J. Phys. B: At. Mol. Phys.16, L617 (1983)

    Google Scholar 

  12. Grujić, P.: Comm. At. Mol. Phys.17, 47 (1986)

    Google Scholar 

  13. Vinkalns, I., Gailitis, M.: In: Latvian Academy of Science Report No 4, p. 17. Riga: Zinatne 1967 (in Russian)

    Google Scholar 

  14. Metropulos, A., Nicolaides, C.A.: J. Phys. B: At. Mol. Opt. Phys.21 L77 (1988)

  15. Grujić, P., Simonović, N.: J. Phys. B: At. Mol. Opt. Phys.21, 1945 (1988)

    Google Scholar 

  16. Smirnov, B.M.: Atomic collisions and elementary processes in plasma. Moscow: Atomizdat 1969 (in Russian)

    Google Scholar 

  17. Grujić, P., Koledin, D.: Z. Phys. D — Atoms, Molecules and Clusters14, 327 (1989)

    Google Scholar 

  18. Stauffer, A.D.: Phys. Lett.91A, 114 (1982)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Astronomical Observatory, Volgina 7, YU-11050, Belgrade, Yugoslavia

    M. S. Dimitrijević

  2. Institute of Physics, P.O. Box 57, YU-11001, Belgrade, Yugoslavia

    P. Grujić & N. Simonović

Authors
  1. M. S. Dimitrijević
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. P. Grujić
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. N. Simonović
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Dimitrijević, M.S., Grujić, P. & Simonović, N. Fourfold ionization by electrons near the threshold. Z Phys D - Atoms, Molecules and Clusters 15, 203–209 (1990). https://doi.org/10.1007/BF01437181

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01437181

PACS

Search

Navigation