The DSM theory for tip electron-atom bremsstrahlung at 5−500 MeV

The Dirac–Sommerfeld-Maue (DSM) theory for electron bremsstrahlung at the short-wavelength limit, based on a point-Coulomb description of the target nucleus, is tested against the Dirac partial-wave (DW) theory at collision energies up to 35 MeV. It is found that for the small photon angles, which c...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2019-09, Vol.162, p.172-177
Main Author: Jakubassa-Amundsen, D.H.
Format: Article
Language:English
Subjects:
Bremsstrahlung
Dependence
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Summary:The Dirac–Sommerfeld-Maue (DSM) theory for electron bremsstrahlung at the short-wavelength limit, based on a point-Coulomb description of the target nucleus, is tested against the Dirac partial-wave (DW) theory at collision energies up to 35 MeV. It is found that for the small photon angles, which contribute to the angle-integrated bremsstrahlung yield, the screening effects are at most in the percent region. Predictions are made for the nuclear charge dependence of the singly differential bremsstrahlung cross section at 500 MeV, where experiments are planned in the near future. •Study of bremsstrahlung from high-energy electron-nucleus collisions.•Dirac-Sommerfeld-Maue model extended to 500 MeV.•Prediction of increase of photon intensity with nuclear charge number for maximum frequency.•Verification of inverse proportionality of photon intensity with collision energy.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2019.04.049