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Composition of Partially Ionized Systems Using the PlanckLarkin Partition Function of Mid‐Z ions
Author(s) -
Sengebusch A.,
Reinholz H.,
Röpke G.
Publication year - 2009
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.200910087
Subject(s) - ionization , plasma , ion , classification of discontinuities , atomic physics , physics , partition (number theory) , partition function (quantum field theory) , non equilibrium thermodynamics , materials science , thermodynamics , quantum mechanics , mathematical analysis , mathematics , combinatorics
We report on the composition of warm, dense plasmas of M‐shell ions. Assuming local thermal equilibrium, the abundance of different ionization stages is given by a set of coupled Saha‐equations. In order to avoid discontinuities at the Mott density, the partition functions have to account for pressure ionization due to continuum lowering consistently. The Planck‐Larkin renormalization of bound and scattering states is well elaborated for hydrogenic systems. This paper shows the consistent extension to moderately ionized Mid‐Z elements. We present results for solid‐density polymere and titanium plasmas (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)