The influence of local field corrections on Thomson scattering in non-ideal two-component plasmas

TL;DR

This paper develops a new theoretical approach to analyze Thomson scattering in non-ideal plasmas, incorporating detailed electron-electron and electron-ion interactions with a novel response function interpolation.

Contribution

It introduces a generalized interpolation scheme for the electron-electron response function and accounts for dynamic, complex collision frequencies in non-ideal plasmas.

Findings

The new interpolation scheme improves accuracy of scattering predictions.

Different local field correction models significantly affect scattering results.

The approach provides a more comprehensive understanding of plasma response in non-ideal conditions.

Abstract

Thomson scattering in non-ideal (collision-dominated) two-component plasmas is calculated accounting for electron-ion collisions as well as electron-electron correlations. This is achieved by using a novel interpolation scheme for the electron-electron response function generalizing the traditional Mermin approach. Also, ions are treated as randomly distributed inert scattering centers. The collision frequency is taken as a dynamic and complex quantity and is calculated from a microscopic quantum-statistical approach. Implications due to different approximations for the electron-electron correlation, i.e. different forms of the OCP local field correction, are discussed.