Strong Coupling and Degeneracy Effects in Inertial Confinement Fusion Implosions

被引：155

作者：

Hu, S. X. ^{[1
]}

Militzer, B. ^{[2
,3
]}

Goncharov, V. N. ^{[1
]}

Skupsky, S. ^{[1
]}

机构：

[1] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA

[2] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 23期

基金：

美国国家科学基金会;

关键词：

EQUATION-OF-STATE; LIQUID DEUTERIUM; HYDROGEN; DENSITY; FLUID; SIMULATIONS; IGNITION; HOT;

D O I：

10.1103/PhysRevLett.104.235003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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