Calculation of free-free Gaunt factors in hot dense plasmas

Journal Article · Wed Jun 01 04:00:00 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), Journal Name: Phys. Rev. A; (United States) Vol. 27:6; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

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