Shaffer Nathaniel R, Starrett Charles E
Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, USA and Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, USA.
Phys Rev E. 2022 Jan;105(1-2):015203. doi: 10.1103/PhysRevE.105.015203.
The calculation of the optical properties of hot dense plasmas with a model that has self-consistent plasma physics is a grand challenge for high energy density science. Here we exploit a recently developed electronic structure model that uses multiple scattering theory to solve the Kohn-Sham density functional theory equations for dense plasmas. We calculate opacities in this regime, validate the method, and apply it to recent experimental measurements of opacity for Cr, Ni, and Fe. Good agreement is found in the quasicontinuum region for Cr and Ni, while the self-consistent plasma physics of the approach cannot explain the observed difference between models and the experiment for Fe.
用具有自洽等离子体物理的模型来计算热密等离子体的光学性质，是高能量密度科学面临的一项重大挑战。在此，我们采用一种最近开发的电子结构模型，该模型利用多重散射理论来求解稠密等离子体的科恩-沙姆密度泛函理论方程。我们计算了该区域的不透明度，验证了该方法，并将其应用于最近对Cr、Ni和Fe不透明度的实验测量。在Cr和Ni的准连续区发现了良好的一致性，而该方法的自洽等离子体物理无法解释模型与Fe的实验之间观察到的差异。
