Calculation of free-free Gaunt factors in hot dense plasmas

Journal Article · Wed Jun 01 00:00:00 EDT 1983 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.27.3209· OSTI ID:6013041

Feng, I J; Lamoureux, M; Pratt, R H; Tseng, H K

We have obtained predictions for free-free Gaunt factors, using a full relativistic numerical partial-wave and multipole calculation of the bremsstrahlung process as a single electron transition in a potential. We study hot dense cesium plasmas, at various densities and temperatures, using the finite-temperature and -density Thomas-Fermi potential. We consider incident electron energies in the range 1--50 keV. Our results show that use of isolated neutral or ion Gaunt factors has only limited applicability in this environment, while use of the Elwert-Born approximation can lead to a factor-of-3 discrepancy for low incident electron energies.

• Research Organization: Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
• OSTI ID: 6013041
• Journal Information: Phys. Rev. A; (United States), Vol. 27:6
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
HOT PLASMA
BREMSSTRAHLUNG
BORN APPROXIMATION
CESIUM
ELECTRONS
KEV RANGE 10-100
KRAMERS THEOREM
PLASMA DIAGNOSTICS
RELATIVISTIC RANGE
TRANSITION RADIATION
ALKALI METALS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
KEV RANGE
LEPTONS
METALS
PLASMA
RADIATIONS
700108* - Fusion Energy- Plasma Research- Wave Phenomena