Journal
PHYSICAL REVIEW LETTERS
Volume 104, Issue 23, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.235003
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Funding
- U.S. Department of Energy Office of Inertial Confinement Fusion [DE-FC52-08NA28302]
- University of Rochester
- New York State Energy Research and Development Authority
- National Science Foundation (NSF) [PHY090093, PHY100003]
- University of California
- NSF
- NASA
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Accurate knowledge about the equation of state (EOS) of deuterium is critical to inertial confinement fusion (ICF). Low-adiabat ICF implosions routinely access strongly coupled and degenerate plasma conditions. Using the path integral Monte Carlo method, we have derived a first-principles EOS (FPEOS) table of deuterium. It is the first ab initio EOS table which completely covers typical ICF implosion trajectory in the density and temperature ranges of rho = 0.002-1596 g/cm(3) and T = 1.35 eV-5.5 keV. Discrepancies in internal energy and pressure have been found in strongly coupled and degenerate regimes with respect to SESAME EOS. Hydrodynamics simulations of cryogenic ICF implosions using the FPEOS table have indicated significant differences in peak density, areal density (rho R), and neutron yield relative to SESAME simulations.
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