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Title: Analysis of laser shock experiments on precompressed samples using a quartz reference and application to warm dense hydrogen and helium

Abstract

Megabar (1 Mbar = 100 GPa) laser shocks on precompressed samples allow reaching unprecedented high densities and moderately high ~10 3–10 4 K temperatures. We describe in this paper a complete analysis framework for the velocimetry (VISAR) and pyrometry (SOP) data produced in these experiments. Since the precompression increases the initial density of both the sample of interest and the quartz reference for pressure-density, reflectivity, and temperature measurements, we describe analytical corrections based on available experimental data on warm dense silica and density-functional-theory based molecular dynamics computer simulations. Finally, using our improved analysis framework, we report a re-analysis of previously published data on warm dense hydrogen and helium, compare the newly inferred pressure, density, and temperature data with most advanced equation of state models and provide updated reflectivity values.

Authors:
 [1]; ORCiD logo [2];  [1];  [3]; ORCiD logo [3];  [3];  [3];  [3];  [3];  [3]; ORCiD logo [4];  [3];  [3];  [3];  [3];  [5]
  1. Alternative Energies and Atomic Energy Commission (CEA), Arpajon (France)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Swinburne Univ. of Technology, Hawthorn, VIC (Australia)
  5. Univ. of California, Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); USDOE National Nuclear Security Administration (NNSA); LLNL Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1376040
Report Number(s):
LLNL-JRNL-672121
Journal ID: ISSN 0021-8979
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 118; Journal Issue: 19; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; quartz; reflectivity; shock waves; equations of state; silica

Citation Formats

Brygoo, Stephanie, Millot, Marius, Loubeyre, Paul, Lazicki, Amy E., Hamel, Sebastien, Qi, Tingting, Celliers, Peter M., Coppari, Federica, Eggert, Jon H., Fratanduono, Dayne E., Hicks, Damien G., Rygg, J. Ryan, Smith, Raymond F., Swift, Damian C., Collins, Gilbert W., and Jeanloz, Raymond. Analysis of laser shock experiments on precompressed samples using a quartz reference and application to warm dense hydrogen and helium. United States: N. p., 2015. Web. doi:10.1063/1.4935295.
Brygoo, Stephanie, Millot, Marius, Loubeyre, Paul, Lazicki, Amy E., Hamel, Sebastien, Qi, Tingting, Celliers, Peter M., Coppari, Federica, Eggert, Jon H., Fratanduono, Dayne E., Hicks, Damien G., Rygg, J. Ryan, Smith, Raymond F., Swift, Damian C., Collins, Gilbert W., & Jeanloz, Raymond. Analysis of laser shock experiments on precompressed samples using a quartz reference and application to warm dense hydrogen and helium. United States. doi:10.1063/1.4935295.
Brygoo, Stephanie, Millot, Marius, Loubeyre, Paul, Lazicki, Amy E., Hamel, Sebastien, Qi, Tingting, Celliers, Peter M., Coppari, Federica, Eggert, Jon H., Fratanduono, Dayne E., Hicks, Damien G., Rygg, J. Ryan, Smith, Raymond F., Swift, Damian C., Collins, Gilbert W., and Jeanloz, Raymond. Mon . "Analysis of laser shock experiments on precompressed samples using a quartz reference and application to warm dense hydrogen and helium". United States. doi:10.1063/1.4935295. https://www.osti.gov/servlets/purl/1376040.
@article{osti_1376040,
title = {Analysis of laser shock experiments on precompressed samples using a quartz reference and application to warm dense hydrogen and helium},
author = {Brygoo, Stephanie and Millot, Marius and Loubeyre, Paul and Lazicki, Amy E. and Hamel, Sebastien and Qi, Tingting and Celliers, Peter M. and Coppari, Federica and Eggert, Jon H. and Fratanduono, Dayne E. and Hicks, Damien G. and Rygg, J. Ryan and Smith, Raymond F. and Swift, Damian C. and Collins, Gilbert W. and Jeanloz, Raymond},
abstractNote = {Megabar (1 Mbar = 100 GPa) laser shocks on precompressed samples allow reaching unprecedented high densities and moderately high ~103–104 K temperatures. We describe in this paper a complete analysis framework for the velocimetry (VISAR) and pyrometry (SOP) data produced in these experiments. Since the precompression increases the initial density of both the sample of interest and the quartz reference for pressure-density, reflectivity, and temperature measurements, we describe analytical corrections based on available experimental data on warm dense silica and density-functional-theory based molecular dynamics computer simulations. Finally, using our improved analysis framework, we report a re-analysis of previously published data on warm dense hydrogen and helium, compare the newly inferred pressure, density, and temperature data with most advanced equation of state models and provide updated reflectivity values.},
doi = {10.1063/1.4935295},
journal = {Journal of Applied Physics},
number = 19,
volume = 118,
place = {United States},
year = {2015},
month = {11}
}

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Cited by: 18 works
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