COMPTRA04
 a program package to calculate composition and transport
coefficients in dense plasmas
COMPTRA04 is a Fortran 90 program package developed for the calculation of composition and transport coefficients within the partially ionized plasma model.
For details and a manual, see:
S. Kuhlbrodt et. al., Contributions to Plasma Physics, Volume 45, Issue 2 , Pages 73  88 (2005)
For downloading the package use the following link:
comptra04.tar.gz
(version 040726, 350kB)
Transport Coefficients and
Composition of Dense Plasmas
This site contains data files for the composition of various metal
and noble gas plasmas as well as for the transport coefficients
electrical conductivity (sigma), thermal conductivity (lambda),
thermopower (kappa), and Lorentz number (L) for given densities and
temperatures. Basis for the calculation of the composition is the
partially ionized plasma (PIP) model: Free electrons, various ion
species, and neutral atoms are treated in a chemical picture. For the
calculation of the transport coefficients, the linear response theory
(LRT) in the formulation of Zubarev was used which is valid for
arbitrary degeneracy.
For details of these models and the respective calculations, see:
S. Kuhlbrodt, PhD thesis,
Universität Rostock 2003
. (in german)
S. Kuhlbrodt et. al., Contributions to Plasma Physics,
Volume 45, Issue 1 , Pages 61  69 (2005)
Here, only the most important approximations are mentioned:
Calculation of composition:
 Padé approximations of Ebeling et al. for the
contributions of charged particles to the free energy
 2nd virial coefficient for the polarization
contribution of chargedneutral interactions to the free energy
 neglect of contributions to the free energy due to
particle volumina (excluded volume)
Calculation of the transport coefficients:
 threemoment approximation
 transport cross sections in Tmatrix approximation
for ei and ee scattering
 transport cross sections in Born approximation for
eatom scattering
 neglect of ionion structure factor effects
The files given below are named due to there content. For example,
files fe1030K_* contain data for iron (fe) between 10000 K
and 30000 K. The prefix *_comp stands for a composition file, *_trans
are files that include data for the transport coefficients, *_sesa
contains
electrical conductivity, thermal conductivity, and thermopower in the
usual SESAME format for the same temperatures and densities as the
*_trans files. (see more information
about formats
)
Metal Plasmas
Noble Gas
Plasmas
