Photon Transport

Photon transport properties

Exploring X-ray thomson scattering and time-dependent density functional theory in plasma diagnostics

Photon transport properties of a material photons are absorbed, emitted or scattered in a dense plasma.  Example of our work include applications of time-dependent density functional theory to absorption,  free-free opacity in dense plasmas, and a model for X-ray.

Elastic Scattering Feature

In x-ray scattering experiments the static elastic contribution (W (k)) to the measured electron-electron dynamic structure factor can be approximated as which is the pseudoatom density multipled by the ion-ion structure factor.  

$W(k)=n(k)S(k)$

Both which are natural ouputs of our PAMD model. A direct application of this model to measurements by Fetcher et al revealed good agreement for the Kohn-Sham version of the PAMD model. However, using the Thomas-Fermi version, the model did not agree. This shows the breakdown of the Thomas-Fermi method.

This work was published in the AP Physical Review Journal, 2015.