Abstract
Electron bremsstrahlung has been investigated for collisions of 223.2 MeV/amu He-like uranium ions with N2 and Ar gaseous targets. The doubly differential cross-sections for bremsstrahlung are compared to the predictions of relativistic first order Born calculations (Bethe-Heitler formula with Elwert correction factor) and to the calculations based on the exact wavefunctions for electrons moving in the external point-Coulomb potential of the projectile. Whereas the “exact” IPA calculations give an improved agreement with experimental data, as compared to the Bethe-Heitler theory, in particular at the end-point region of the bremsstrahlung spectra, discrepancies still remain at lower photon energies.
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Ludziejewski, T., Stöhlker, T., Keller, S. et al. Study of electron bremsstrahlung in strong Coulomb fields at the ESR storage ring. Hyperfine Interactions 114, 165–169 (1998). https://doi.org/10.1023/A:1012626606276
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DOI: https://doi.org/10.1023/A:1012626606276