Los Alamos National LaboratoryDense Plasma Theory
Microphysical properties of dense, strongly coupled, and quantum plasmas
X-ray Thomson Scattering
X-ray Thomson scattering is a commonly used diagnostic for dense plasmas. It can be used to determine the temperature of a plasma. Usually a model is needed to extract this information.
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. 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 here.
