Advertisement

Electron and positron impact experiments on metallic foils at the giessen positron source TEPOS

  • W. Faust
  • C. Hahn
  • M. Rückert
  • H. Schneider
  • A. Singe
  • I. Tobehn
Conference paper

Abstract

The sources TEPOS for slow positrons were installed at the Giessen 65 MeV electron linear accelerator. Ratios of K- and L-shell ionization cross-sections by electron and positron impact were measured on Au-/Ag-foils as function of the incident projectile energy. With energies near threshold a departure is observed of the ratio σ (e-)/σ(e+) from unity (increasing with decreasing energy).

Keywords

Projectile Energy Double Ratio Electron Linear Accelerator Metallic Foil Shell Ionization 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    F. Ebel, W. Faust, C. Hahn, S. Langer, M. Rückert, H. Schneider, A. Singe and I. Tobehn; Nucl. Instr. a. Meth. A272, 626 (1988)CrossRefADSGoogle Scholar
  2. 2.
    F. Bbel, V. Faust, C. Hahn, K. Rückert, H. Schneider, A. Singe and I. Tobehn; Nucl. Instr. a. Meth. B50, 328 (1990)ADSGoogle Scholar
  3. 3.
    F. Ebel, W. Faust, C. Hahn, M. Rückert, H. Schneider, A. Singe and I. Tobehn Phys. Lett. A140, 114 (1989)ADSGoogle Scholar
  4. 4.
    S. Ito, S. Shimizu, T. Kawaratani, and K. Kubota; Phys, Rev. A22, 407 (1980)ADSGoogle Scholar
  5. 5.
    P.J. Schultz and J.L. Campbell; Phys. Lett. 112A, 316 (1985)ADSGoogle Scholar
  6. 6.
    R. Hippler; Phys. Lett. A144, 81 (1990) and private communicationsADSGoogle Scholar
  7. 7.
    R. Hippler, W. Jitschin Z. Physik A307, 287 (1982)ADSGoogle Scholar
  8. 8.
    G. Hock Proc. XIth ICPEAC. Kyoto, 1979 (North Holland) p. 974Google Scholar
  9. 9.
    A.I. Lennard, P.J. Schultz, G.R. Massoumi and L.R. Logan; Phys. Rev. Lett. 61, 2428 (1988)CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • W. Faust
    • 1
  • C. Hahn
    • 1
  • M. Rückert
    • 1
  • H. Schneider
    • 1
  • A. Singe
    • 1
  • I. Tobehn
    • 1
  1. 1.Abteilung Angewandte KernphysikStrahlenzentrum der Universität GiessenGiessenGermany

Personalised recommendations