First-principles equation of state of polystyrene and its effect on inertial confinement fusion implosions
Abstract
Obtaining an accurate equation of state (EOS) of polystyrene (CH) is crucial to reliably design inertial confinement fusion (ICF) capsules using CH/CH-based ablators. Thus, with first-principles calculations, we have investigated the extended EOS of CH over a wide range of plasma conditions (ρ = 0.1 to 100 g/cm3 and T = 1,000 to 4,000,000 K). When compared with the widely used SESAME-EOS table, the first-principles equation of state (FPEOS) of CH has shown significant differences in the low-temperature regime, in which strong coupling and electron degeneracy play an essential role in determining plasma properties. Hydrodynamic simulations of cryogenic target implosions on OMEGA using the FPEOS table of CH have predicted ~5% reduction in implosion velocity and ~30% decrease in neutron yield in comparison with the usual SESAME simulations. This is attributed to the ~10% lower mass ablation rate of CH predicted by FPEOS. Simulations using CH-FPEOS show better agreement with measurements of Hugoniot temperature and scattered lights from ICF implosions.
- Authors:
-
- Univ. of Rochester, Rochester, NY (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Univ. of Rochester, NY (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); Univ. of Rochester (United States); New York State Energy Research and Development Authority (United States)
- OSTI Identifier:
- 1223806
- Alternate Identifier(s):
- OSTI ID: 1223575; OSTI ID: 1329876
- Report Number(s):
- LA-UR-15-24894
Journal ID: ISSN 1539-3755; PLEEE8; 2015-104; 2205; TIC-1241
- Grant/Contract Number:
- NA0001944; AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
- Additional Journal Information:
- Journal Volume: 92; Journal Issue: 4; Journal ID: ISSN 1539-3755
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Hu, S. X., Collins, L. A., Goncharov, V. N., Kress, J. D., McCrory, R. L., and Skupsky, S. First-principles equation of state of polystyrene and its effect on inertial confinement fusion implosions. United States: N. p., 2015.
Web. doi:10.1103/PhysRevE.92.043104.
Hu, S. X., Collins, L. A., Goncharov, V. N., Kress, J. D., McCrory, R. L., & Skupsky, S. First-principles equation of state of polystyrene and its effect on inertial confinement fusion implosions. United States. https://doi.org/10.1103/PhysRevE.92.043104
Hu, S. X., Collins, L. A., Goncharov, V. N., Kress, J. D., McCrory, R. L., and Skupsky, S. Wed .
"First-principles equation of state of polystyrene and its effect on inertial confinement fusion implosions". United States. https://doi.org/10.1103/PhysRevE.92.043104. https://www.osti.gov/servlets/purl/1223806.
@article{osti_1223806,
title = {First-principles equation of state of polystyrene and its effect on inertial confinement fusion implosions},
author = {Hu, S. X. and Collins, L. A. and Goncharov, V. N. and Kress, J. D. and McCrory, R. L. and Skupsky, S.},
abstractNote = {Obtaining an accurate equation of state (EOS) of polystyrene (CH) is crucial to reliably design inertial confinement fusion (ICF) capsules using CH/CH-based ablators. Thus, with first-principles calculations, we have investigated the extended EOS of CH over a wide range of plasma conditions (ρ = 0.1 to 100 g/cm3 and T = 1,000 to 4,000,000 K). When compared with the widely used SESAME-EOS table, the first-principles equation of state (FPEOS) of CH has shown significant differences in the low-temperature regime, in which strong coupling and electron degeneracy play an essential role in determining plasma properties. Hydrodynamic simulations of cryogenic target implosions on OMEGA using the FPEOS table of CH have predicted ~5% reduction in implosion velocity and ~30% decrease in neutron yield in comparison with the usual SESAME simulations. This is attributed to the ~10% lower mass ablation rate of CH predicted by FPEOS. Simulations using CH-FPEOS show better agreement with measurements of Hugoniot temperature and scattered lights from ICF implosions.},
doi = {10.1103/PhysRevE.92.043104},
journal = {Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics},
number = 4,
volume = 92,
place = {United States},
year = {Wed Oct 14 00:00:00 EDT 2015},
month = {Wed Oct 14 00:00:00 EDT 2015}
}
Web of Science
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