70 citations · 242 across the 16 of their papers we have counts for
16 papers
Measurement and analysis of the Doppler broadened energy spectra of annihilation gamma radiation originating from clean and adsorbate-covered surfaces
S. Lotfimarangloo, V. A. Chirayath, P. A. Sterne +8
We present measurements and theoretical modeling demonstrating the capability of Doppler Broadened annihilation gamma Spectroscopy (DBS) to provide element-specific information fro…
Atom-in-jellium predictions of the shear modulus at high pressure
Damian C. Swift, Thomas Lockard, Sebastien Hamel +3
Atom-in-jellium calculations of the Einstein frequency in condensed matter and of the equation of state were used to predict the variation of shear modulus from zero pressure to ~$…
Atom-in-jellium equations of state and melt curves in the white dwarf regime
Damian C. Swift, Thomas Lockard, Sebastien Hamel +4
Atom-in-jellium calculations of the electron states, and perturbative calculations of the Einstein frequency, were used to construct equations of state (EOS) from around …
Benchmarking boron carbide equation of state using computation and experiment
Shuai Zhang, Michelle C. Marshall, Lin H. Yang +13
Boron carbide (BC) is of both fundamental scientific and practical interest in inertial confinement fusion (ICF) and high energy density physics experiments. We report the resu…
Identification of Auger mechanisms responsible for low energy electron emission from graphene on copper using Auger-gamma coincidence spectroscopy
R. W. Gladen, V. A. Chirayath, P. A. Sterne +3
We present a novel method for the analysis of the Doppler broadened spectrum of gamma photons emitted following the annihilation of surface trapped positrons with the electrons of…
Comparison of ablators for the polar direct drive exploding pusher platform
Heather D. Whitley, G. Elijah Kemp, Charles Yeamans +36
We examine the performance of pure boron, boron carbide, high density carbon, and boron nitride ablators in the polar direct drive exploding pusher (PDXP) platform. The platform us…
Carbon ionization at Gbar pressures: an ab initio perspective on astrophysical high-density plasmas
Mandy Bethkenhagen, Bastian B. L. Witte, Maximilian Schörner +6
A realistic description of partially-ionized matter in extreme thermodynamic states is critical to model the interior and evolution of the multiplicity of high-density astrophysica…
Equations of state for ruthenium and rhodium
Damian C. Swift, Thomas Lockard, Olivier Heuze +8
Ru and Rh are interesting cases for comparing equations of state (EOS), because most general purpose EOS are semi-empirical, relying heavily on shock data, and none has been report…
Application of Doppler Broadened Gamma Spectroscopy to Study the Surface of Graphene
A. H. Weiss, V. A. Chirayath, R. W. Gladen +4
We present Doppler broadened gamma spectra, obtained using the newly developed advanced positron beam at the University of Texas at Arlington, from a sample consisting of 6 to 8 la…
Atom-in-jellium equations of state for cryogenic liquids
Thomas Lockard, Marius Millot, Burkhard Militzer +4
Equations of state (EOS) calculated from a computationally efficient atom-in-jellium treatment of the electronic structure have recently been shown to be consistent with more rigor…
High temperature ion-thermal behavior from average-atom calculations
Damian C. Swift, Mandy Bethkenhagen, Alfredo A. Correa +5
Atom-in-jellium calculations of the Einstein frequency were used to calculate the mean displacement of an ion over a wide range of compression and temperature. Expressed as a fract…
Atom-in-jellium equations of state in the high energy density regime
Damian C. Swift, Thomas Lockard, Richard G. Kraus +5
Recent path-integral Monte Carlo and quantum molecular dynamics simulations have shown that computationally efficient average-atom models can predict thermodynamic states in warm d…
Equation of state of warm-dense boron nitride combining computation, modeling, and experiment
Shuai Zhang, Amy Lazicki, Burkhard Militzer +18
The equation of state (EOS) of materials at warm dense conditions poses significant challenges to both theory and experiment. We report a combined computational, modeling, and expe…
A first-principles global multiphase equation of state for hydrogen
Alfredo A. Correa, Lorin X. Benedict, Miguel A. Morales +3
We present and discuss a wide-range hydrogen equation of state model based on a consistent set of ab initio simulations including quantum protons and electrons. Both the process of…
Theoretical and experimental investigation of the equation of state of boron plasmas
Shuai Zhang, Burkhard Militzer, Michelle C. Gregor +11
We report a theoretical equation of state (EOS) table for boron across a wide range of temperatures (5.110-5.210 K) and densities (0.25-49 g/cm), and ex…
Path integral Monte Carlo simulations of dense carbon-hydrogen plasmas
Shuai Zhang, Burkhard Militzer, Lorin X. Benedict +3
Carbon-hydrogen plasmas and hydrocarbon materials are of broad interest to laser shock experimentalists, high energy density physicists, and astrophysicists. Accurate equations of…