Triply differential cross section and polarization correlations in electron bremsstrahlung emission
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)
- Institute of Physics, Chinese Academy of Science, Beijing, 100080 (China)
We report results from a reformulation of the relativistic bremsstrahlung code of Tseng and Pratt. This permits calculation of the triply differential cross section {ital d}{sup 3}{sigma} of bremsstrahlung (electron-photon coincidence measurements) in electron scattering on neutral atoms and ions. The cross section {ital d}{sup 3}{sigma} is viewed as a more sensitive test of the theory, and predictions are needed for comparison with the more systematic and accurate experiments which are now being undertaken. The reformulation represents an extension of the previous code (which only calculated the doubly differential cross section), again utilizing partial-wave and multipole expansions in a screened potential within the independent particle approximation, but differently organizing their summation. The best previous predictions for the triply differential cross sections are due to Elwert and Haug, under assumptions less restrictive than Born approximation yet valid for high-{ital Z} elements only at very high incident electron energy. While we confirm differences from the Elwert-Haug results, we do not see a systematic improvement in the agreement with the limited previous experimental data, and further experiments are awaited with interest. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 284331
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 53; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Bremsstrahlung energy spectra from electrons with kinetic energy 1 keV-10 GeV incident on screened nuclei and orbital electrons of neutral atoms with Z = 1--100*
Electron bremsstrahlung angular-distribution fits for atomic numbers 1 less than or equal to Z less than or equal to 92, and incident-electron energies 1 keV less than or equal to T less than or equal to 500 keV
Atomic field Bremsstrahlung for electron energy 50 to 100 keV for Z from 6 to 92
Journal Article
·
Fri Oct 31 23:00:00 EST 1986
· At. Data Nucl. Data Tables; (United States)
·
OSTI ID:5109277
Electron bremsstrahlung angular-distribution fits for atomic numbers 1 less than or equal to Z less than or equal to 92, and incident-electron energies 1 keV less than or equal to T less than or equal to 500 keV
Technical Report
·
Thu Dec 31 23:00:00 EST 1981
·
OSTI ID:5186026
Atomic field Bremsstrahlung for electron energy 50 to 100 keV for Z from 6 to 92
Thesis/Dissertation
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:6595107