Skip to main content
SpringerLink
Log in

A new technique for measuring positron impact direct ionisation

  • Regular Article
  • Published:
The European Physical Journal D Aims and scope Submit manuscript

Abstract

We present a method for measuring the electron yield in positron impact direct ionisation of atomic or molecular targets using a magnetically confined positron beam. This method can be used to determine the (relative) direct ionisation cross section. The use of this technique and a Surko trap based positron beam allows the electron yield to be measured at impact energies as low as 100 meV above the direct ionisation threshold. Application of this technique to the measurement of the energy dependence of the direct ionisation cross section near threshold is also discussed.

Graphical abstract

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. R.P. McEachran, J.P. Sullivan, S.J. Buckman, M.J. Brunger, M.C. Fuss, A. Muñoz, F. Blanco, R.D. White, Z. Lj Petrović, P. Limão-Vieira, G. García, J. Phys. B At. Mol. Opt. Phys. 45, 045207 (2012)

    Article  ADS  Google Scholar 

  2. A. Fridman, Plasma chemistry (Cambridge University Press, New York, 2008)

  3. N. Prantzos, C. Boehm, A.M. Bykov, R. Diehl, K. Ferrière, N. Guessoum, P. Jean, J. Knoedlseder, A. Marcowith, I.V. Moskalenko, A. Strong, G. Weidenspointner, Rev. Mod. Phys. 83, 1001 (2011)

    Article  ADS  Google Scholar 

  4. F. Blanco, A.M Roldán, K. Krupa, R.P. McEachran, R.D. White, S. Marjanović, Z. Lj Petrović, M.J. Brunger, J.R Machacek, S.J. Buckman, J.P. Sullivan, L. Chiari, P. Limão-Vieira, G. García, J. Phys. B At. Mol. Opt. Phys. 49, 145001 (2016)

    Article  ADS  Google Scholar 

  5. D.V. Fursa, I. Bray, New J. Phys. 14, 35002 (2012)

    Article  Google Scholar 

  6. R.P. McEachran, A.D. Stauffer, J. Phys. B At. Mol. Opt. Phys. 43, 215209 (2010)

    Article  ADS  Google Scholar 

  7. R.P. McEachran, A.D. Stauffer, J. Phys. B At. Mol. Opt. Phys. 46, 75203 (2013)

    Article  Google Scholar 

  8. C.M. Surko, G.F. Gribakin, S.J. Buckman, J. Phys. B At. Mol. Opt. Phys. 38, R57 (2005)

    Article  ADS  Google Scholar 

  9. H. Knudsen, L. Brun-Nielsen, M. Charlton, M.R. Poulsen, J. Phys. B At. Mol. Opt. Phys. 23, 3955 (1990)

    Article  ADS  Google Scholar 

  10. S. Mori, O. Sueoka, J. Phys. B At. Mol. Opt. Phys. 27, 4349 (1994)

    Article  ADS  Google Scholar 

  11. D. Fromme, G. Kruse, W. Raith, G. Sinapius, Phys. Rev. Lett. 57, 3031 (1986)

    Article  ADS  Google Scholar 

  12. D. Fromme, G. Kruse, W. Raith, G. Sinapius, J. Phys. B At. Mol. Opt. Phys. 21, L261 (1988)

    Article  ADS  Google Scholar 

  13. J.P. Marler, J.P. Sullivan, C.M. Surko, Phys. Rev. A 71, 022701 (2005)

    Article  ADS  Google Scholar 

  14. J.P. Marler, C.M. Surko, Phys. Rev. A 72, 062713 (2005)

    Article  ADS  Google Scholar 

  15. J.P. Sullivan, A. Jones, P. Caradonna, C. Makochekanwa, S.J. Buckman, Rev. Sci. Instrum. 79, 113105 (2008)

    Article  ADS  Google Scholar 

  16. M.R. Natisin, J.R. Danielson, C.M. Surko, Phys. Plasmas 22, 033501 (2015)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Plasma Research Laboratory, Research School of Physics and Engineering, Australian National University, Canberra, 2601, Australia

    Joshua R. Machacek, Tamara J. Babij, Daniel J. Murtagh, Steven J. Buckman & James P. Sullivan

Authors
  1. Joshua R. Machacek
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Tamara J. Babij
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Daniel J. Murtagh
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Steven J. Buckman
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. James P. Sullivan
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Joshua R. Machacek.

Additional information

Contribution to the Topical Issue “Low Energy Positron and Electron Interactions”, edited by James Sullivan, Ron White, Michael Bromley, Ilya Fabrikant and David Cassidy.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Machacek, J.R., Babij, T.J., Murtagh, D.J. et al. A new technique for measuring positron impact direct ionisation. Eur. Phys. J. D 71, 328 (2017). https://doi.org/10.1140/epjd/e2017-80533-7

Download citation

  • Received:

  • Revised:

  • Published:

  • DOI: https://doi.org/10.1140/epjd/e2017-80533-7

Search

Navigation