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Equation of state, transport coefficients, and stopping power of dense plasmas from the average-atom model self-consistent approach for astrophysical and laboratory plasmas
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10.1063/1.3420276
/content/aip/journal/pop/17/5/10.1063/1.3420276
http://aip.metastore.ingenta.com/content/aip/journal/pop/17/5/10.1063/1.3420276

Figures

Image of FIG. 1.
FIG. 1.

Carbon average ionization as a function of temperature at . The experimental data (Ref. 70) are compared to PURGATORIO (Ref. 71), Thomas–Fermi (Ref. 35), and SCAALP (Ref. 6). Two PURGATORIO values are given: one including all continuum electrons (dot-dashed line) and one excluding continuum electrons in quasibound resonance states (dotted line).

Image of FIG. 2.
FIG. 2.

Helium pressure as a function of temperature using the SCAALP model (SCAALP), the PIMC approach (PIMC), and DFT-MD simulations (Ref. 72) at electron Wigner–Seitz radius equal to 2.4, 2.2, 2, 1.86, 1.75, and 1.5 a.u.

Image of FIG. 3.
FIG. 3.

Carbon pressure at obtained with the SCAALP model using the HS reference system (SCAALP-HS) or the VMHNC approach (SCAALP-VMHNC). Results are compared with calculations performed by Potekhin et al. (Ref. 73) (PMC05). We indicate at which density the principal shell of quantum number disappears.

Image of FIG. 4.
FIG. 4.

Pressure (a) and temperature (b) of aluminum along the Hugoniot curve using (dashed lines), (solid lines), and QEOS (Ref. 34) (dotted lines) for initial conditions and .

Image of FIG. 5.
FIG. 5.

Aluminum Hugoniot curves calculated using (dashed lines) and (solid lines) for different initial conditions (a) and (b) .

Image of FIG. 6.
FIG. 6.

Electrical resistivity of aluminum along the Hugoniot curve using with the ZE formula (solid line) and the KG formula (dashed line) for initial conditions and .

Image of FIG. 7.
FIG. 7.

Electronic thermal conductivity calculated using the ABINIT code (Refs. 84–86), the SCAALP model, the Spitzer approach (Ref. 87), and the Hubbard (Refs. 88 and 89) and Lee–More (Ref. 90) models for hydrogen at .

Image of FIG. 8.
FIG. 8.

Stopping power in solid-density aluminum target at room temperature as a function of proton energy. SCAALP calculations (SCAALP) are compared to NIST values (NIST).

Image of FIG. 9.
FIG. 9.

Stopping power in solid-density aluminum target at various temperatures as a function of proton energy predicted by SCAALP. Calculations have been done at 1, 2, 5, 7, 10, 20, 50, 70, 100, 200, 500, 700, and 1000 eV. The stopping peak amplitude decreases with increasing temperature.

Image of FIG. 10.
FIG. 10.

Proton range as a function of temperature in solid-density aluminum target at 0.1, 1, and 10 MeV.

Image of FIG. 11.
FIG. 11.

Proton range as a function of density along the aluminum Hugoniot (initial conditions and ) at 0.1, 1, and 10 MeV using (dashed lines) and (solid lines).

Tables

Generic image for table
Table I.

Ionic self-diffusion coefficient for thermodynamic points along the principal Hugoniot of iron. Results are obtained with the SCAALP model and the OFMD simulations (Ref. 94). We consider the HS reference system (SCAALP-HS), the OCP reference system (SCAALP-OCP), and the VMHNC method (SCAALP-VMHNC) to describe the ionic structure with the SCAALP model. The self-diffusion coefficient is in .

Generic image for table
Table II.

Ionic shear viscosity for thermodynamic points along the principal Hugoniot of iron. Results are obtained with the SCAALP model and the OFMD simulations (Ref. 95). We consider the HS reference system (SCAALP-HS), the OCP reference system (SCAALP-OCP), and the VMHNC method (SCAALP-VMHNC) to describe the ionic structure with the SCAALP model. The shear viscosity is in GPa ps.

Generic image for table
Table III.

Value of appearing in the Stokes–Einstein relation (14). Results are obtained with the SCAALP model and the OFMD simulations (Ref. 95). We consider the HS reference system (SCAALP-HS), the OCP reference system (SCAALP-OCP), and the VMHNC method (SCAALP-VMHNC) to describe the ionic structure with the SCAALP model.

Generic image for table
Table IV.

Range in obtained with SCAALP and from NIST (Ref. 97) for various elements at solid density and room temperature for 0.1, 1, and 10 MeV proton energies. is the relative error between the NIST and the SCAALP values, the NIST value being the reference.

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/content/aip/journal/pop/17/5/10.1063/1.3420276
2010-05-20
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Equation of state, transport coefficients, and stopping power of dense plasmas from the average-atom model self-consistent approach for astrophysical and laboratory plasmas
http://aip.metastore.ingenta.com/content/aip/journal/pop/17/5/10.1063/1.3420276
10.1063/1.3420276
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