Hostname: page-component-7b7567c8c-wxvwp Total loading time: 0 Render date: 2026-11-14T09:08:30.421Z Has data issue: false hasContentIssue false

Linear response of partially ionized, dense plasmas†

Published online by Cambridge University Press:  09 March 2009

T. Błeński
Affiliation:
Institute de Génie Atomique, Département de Physique, Ecole Polytechnique Fédérate de Lausanne, 1015 Lausanne, Switzerland
B. Cichocki
Affiliation:
Institute de Génie Atomique, Département de Physique, Ecole Polytechnique Fédérate de Lausanne, 1015 Lausanne, Switzerland
Get access

Abstract

We propose a new formalism to electronic polarizability of dense, partially ionized plasmas. This formalism is based upon the density functional theory for the electronic equilibrium, the random phase approximation for the density response of electrons, and the cluster expansion in the averaging over ionic configurations. The first term in the final cluster expansion for the imaginary part of electron polarizability corresponds to the Lindhard dielectric function formula. The second term contains the electronic states of the average atom. The additional effects that result from this theory are: channel mixing (screening), “inverse Bremstrahlung” corrections, and free-bound electronic transitions. Our approach allows the plasma (collective) and atomic physics phenomena to be treated in the frame of one formalism. The theory can be applied for stopping power and opacity calculations.

Information

Type
Research Article
Copyright
Copyright © Cambridge University Press 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable