DOE/LANL Jurisdiction Fire Danger Rating:
Dense Matter Theory Banner
  1. LANL Home
  2. Engage with LANL
  3. Lab Organizations
  4. X Computational Physics
  5. XCP-5: Materials and Physical Data
  6. dense matter theory
  7. dense matter research

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.  

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.

Thomas Fermi Method for Dense Plasma Modeling, Wk Fletcher

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

References

  • Models of the elastic x-ray scattering feature for warm dense aluminum

Meet the Team

Los Alamos brings together experts from diverse backgrounds, including plasma physics, dynamic fluid flows, and computational sciences. Join us to tackle complex challenges in energy research, astrophysics, and inertial confinement fusion.

Meet the Team