| Full text | |
| Author(s): |
Mangiarotti, A.
;
Jakubassa-Amundsen, D. H.
Total Authors: 2
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW A; v. 96, n. 4, p. 10-pg., 2017-10-09. |
| Abstract | |
The analytic Sommerfeld-Maue theory, including the next-to-leading-order correction, and the relativistic Dirac partial-wave theory are probed by a systematic comparison of the bremsstrahlung spectra with available experimental data. These measurements cover a wide range of nuclear charge numbers (13 <= Z <= 79), collision energies (1-10 MeV), and photon angles (4 degrees <= theta(k) <= 60 degrees). It is found that the analytic model performs well for Z <= 13 at all angles down to very low photon frequencies. For high charge numbers, at high photon energies (i.e., in the short-wavelength limit) or for the larger angles at all photon energies, the partial-wave theory has to be used. For intermediate Z <= 50, the maximum angle up to which the analytic formulae can be used decreases with increasing Z. (AU) | |
| FAPESP's process: | 13/15634-5 - Study of bremsstrahlung properties at the few MeV energy range |
| Grantee: | Marcos Nogueira Martins |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - International |
| FAPESP's process: | 16/13116-5 - Systematic measurements of electron and proton multiple scattering with energies up to 5 MEV |
| Grantee: | Alessio Mangiarotti |
| Support Opportunities: | Research Grants - Young Investigators Grants |