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Title: Heat-release equation of state and thermal conductivity of warm dense carbon by proton differential heating

Abstract

Warm dense carbon is generated at 0.3–2.0 g/cc and 1–7 eV by proton heating. The release equation of state (EOS) after heating and thermal conductivity of warm dense carbon are studied experimentally in this regime using a Au/C dual-layer target to initiate a temperature gradient and two picosecond time-resolved diagnostics to probe the surface expansion and heat flow. Comparison between the data and simulations using various EOSs and thermal conductivity models is quantified with a statistical χ2 analysis. In conclusion, out of seven EOS tables and five thermal conductivity models, only L9061 with the Lee-More model provides a probability above 50% to match all data.

Authors:
ORCiD logo [1];  [1];  [2];  [1];  [1];  [1];  [1];  [3];  [3];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
  3. Univ. of California San Diego, La Jolla, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1597232
Report Number(s):
LLNL-JRNL-755776
Journal ID: ISSN 2470-0045; PLEEE8; 941920; TRN: US2103061
Grant/Contract Number:  
AC52-07NA27344; LFR-17-449059
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review E
Additional Journal Information:
Journal Volume: 100; Journal Issue: 4; Journal ID: ISSN 2470-0045
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; High-energy-density plasmas

Citation Formats

Ping, Yuan, Whitley, Heather D., McKelvey, Andrew, Kemp, Gregory E., Sterne, Phillp A., Shepherd, Ronnie, Marinak, Marty, Hua, Rui, Beg, Farhat N., and Eggert, Jon H. Heat-release equation of state and thermal conductivity of warm dense carbon by proton differential heating. United States: N. p., 2019. Web. doi:10.1103/PhysRevE.100.043204.
Ping, Yuan, Whitley, Heather D., McKelvey, Andrew, Kemp, Gregory E., Sterne, Phillp A., Shepherd, Ronnie, Marinak, Marty, Hua, Rui, Beg, Farhat N., & Eggert, Jon H. Heat-release equation of state and thermal conductivity of warm dense carbon by proton differential heating. United States. https://doi.org/10.1103/PhysRevE.100.043204
Ping, Yuan, Whitley, Heather D., McKelvey, Andrew, Kemp, Gregory E., Sterne, Phillp A., Shepherd, Ronnie, Marinak, Marty, Hua, Rui, Beg, Farhat N., and Eggert, Jon H. Thu . "Heat-release equation of state and thermal conductivity of warm dense carbon by proton differential heating". United States. https://doi.org/10.1103/PhysRevE.100.043204. https://www.osti.gov/servlets/purl/1597232.
@article{osti_1597232,
title = {Heat-release equation of state and thermal conductivity of warm dense carbon by proton differential heating},
author = {Ping, Yuan and Whitley, Heather D. and McKelvey, Andrew and Kemp, Gregory E. and Sterne, Phillp A. and Shepherd, Ronnie and Marinak, Marty and Hua, Rui and Beg, Farhat N. and Eggert, Jon H.},
abstractNote = {Warm dense carbon is generated at 0.3–2.0 g/cc and 1–7 eV by proton heating. The release equation of state (EOS) after heating and thermal conductivity of warm dense carbon are studied experimentally in this regime using a Au/C dual-layer target to initiate a temperature gradient and two picosecond time-resolved diagnostics to probe the surface expansion and heat flow. Comparison between the data and simulations using various EOSs and thermal conductivity models is quantified with a statistical χ2 analysis. In conclusion, out of seven EOS tables and five thermal conductivity models, only L9061 with the Lee-More model provides a probability above 50% to match all data.},
doi = {10.1103/PhysRevE.100.043204},
journal = {Physical Review E},
number = 4,
volume = 100,
place = {United States},
year = {Thu Oct 17 00:00:00 EDT 2019},
month = {Thu Oct 17 00:00:00 EDT 2019}
}

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Figures / Tables:

FIG. 1 FIG. 1: (a) Experimental setup for proton heating of multilayer targets. Both the incident angle of the FDI beam and the SOP collection lens position are 16 degrees from target normal. The temporal resolution is 6 ps in SOP and 1 ps in FDI. (b) Proton energy spectra measured bymore » the Thomson parabola spectrometer. (c) Measured carbon reflectivity vs time.« less

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