Single-quantum annihilation of positrons with-shell electrons
- 1 July 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 20 (1) , 82-86
- https://doi.org/10.1103/physreva.20.82
Abstract
Reevaluations of the total -shell cross sections of single-quantum annihilation of positrons have been made by taking into account the -shell contribution. dependence of the cross section was studied for five high- elements, , and for 300-keV positrons. Energy dependence has also been investigated for the last two elements in the energy region of 250-400 keV. Comparisons with theoretical predictions including the screening effect are also made.
Keywords
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