Nondipolarity of axial channeling radiation at GeV beam energies

Autor: W. Wagner, A. A. Savchenko, B. Azadegan, M. Shafiee
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Physical Review Accelerators and Beams, Vol 22, Iss 5, p 054502 (2019)
Druh dokumentu: article
ISSN: 2469-9888
DOI: 10.1103/PhysRevAccelBeams.22.054502
Popis: We consider the nondipolarity of axial channeling radiation generated in a tungsten single crystal at electron-beam energies of several GeV. The calculations are based on the realistic axial continuous potential. It could be shown that, compared to the dipole approximation, the nondipole approximation results in a considerable variation of the channeling radiation spectrum. In a simulation of positron production via conversion of γ radiation into e^{+}e^{−} pairs, the observed effect may play an important role.
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