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Number of results
1993 | 83 | 3 | 375-380
Article title

Energy-Loss of Positrons in Foils

Content
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Languages of publication
EN
Abstracts
EN
The Giessen slow positron source TEPOS delivers intense beams in the energy range between some eV and 6 keV; with postacceleration up to 80 keV. Results for remoderation are described shortly. Further the energy-losses of positrons with incident energy of 6-20 keV through thin aluminium foils were measured. Cross sections for K- and L-shell ionization of thin silver and gold targets by positron and electron impact have been determined at projectile energies of 30-70 keV. The experimental results are presented in detail; they are confirmed by calculations in plane-wave-Born approximation which include an electron exchange term and account for the deceleration or acceleration of the incident projectile in the nuclear field of the target atom.
Keywords
EN
Contributors
author
  • Strahlenzentrum der Universität Giessen, Leihgesterner Weg 217, 6300 Giessen, Germany
author
  • Strahlenzentrum der Universität Giessen, Leihgesterner Weg 217, 6300 Giessen, Germany
author
  • Strahlenzentrum der Universität Giessen, Leihgesterner Weg 217, 6300 Giessen, Germany
author
  • Fakultät für Physik, Universität Bielefeld, Universitätsstrasse 25, 4800 Bielefeld 1, Germany
author
  • Fakultät für Physik, Universität Bielefeld, Universitätsstrasse 25, 4800 Bielefeld 1, Germany
References
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Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv83z323kz
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