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Integrated simulations of implosion, electron transport, and heating for direct-drive fast-ignition targetsa)
a)Paper YI1 2, Bull. Am. Phys. Soc. 53, 320 (2008).
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10.1063/1.3121244
/content/aip/journal/pop/16/5/10.1063/1.3121244
http://aip.metastore.ingenta.com/content/aip/journal/pop/16/5/10.1063/1.3121244
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Hot-electron density (in ) and (b) component of magnetic field (in MG) 700 fs after the peak of the laser pulse in the simulation for a solid-density plastic target and a laser pulse with the focal spot diameter of and the maximum intensity of .

Image of FIG. 2.
FIG. 2.

The same as in Fig. 1 but for a laser pulse with the maximum intensity of .

Image of FIG. 3.
FIG. 3.

The same as in Fig. 1 but for a laser pulse with the maximum intensity of .

Image of FIG. 4.
FIG. 4.

Hot-electron density (in ) 700 fs after the peak of the laser pulse in the simulations for a solid-density plastic target and laser pulses with the focal spot diameter of and the maximum intensities of (a) , (b) , and (c) .

Image of FIG. 5.
FIG. 5.

(a) Hot-electron density (in ) and (b) magnetic field (in MG) 700 fs after the peak of the laser pulse in the simulation for a compressed uniform plastic target and a laser pulse with the focal spot diameter of and the maximum intensity of .

Image of FIG. 6.
FIG. 6.

The same as in Fig. 5 but for a compressed plastic target with a Gaussian spatial density distribution.

Image of FIG. 7.
FIG. 7.

Fuel assembly in the integrated simulations for a cone-in-shell plastic target used in the fast-ignition experiments at LLE. Schematics of (a) a plastic shell and (b) a cone tip; (c) temporal profile of the laser pulse used for the target implosion.

Image of FIG. 8.
FIG. 8.

(a) Target-density profile at the time of maximum in the integrated simulations for the fast-ignition experiments at LLE. The dashed lines show the initial position of the cone. Hot electrons are injected in the simulations from the target center. (b) Lineout of CD density through the axis. The density increase at is due to compression by a shock reflected from the cone tip.

Image of FIG. 9.
FIG. 9.

(a) Plasma density (in ), (b) hot-electron density (in ), and (c) azimuthal magnetic field (in MG) 6 ps after the beginning of the hot-electron beam with an initial divergence of 20° (half-angle). (d) Plasma temperature (in keV) before the electron beam injection. (e) Ion temperature increase (in keV) in the end of the hot-electron pulse; plasma density in contours (white curves) are also shown.

Image of FIG. 10.
FIG. 10.

(a) Hot-electron density (in ) and (b) azimuthal magnetic field (in MG) 6 ps after the beginning of the hot-electron beam with an initial divergence of 60° (half-angle). (c) Ion temperature increase (in keV) in the end of the hot-electron pulse; plasma density in contours (white curves) are also shown.

Image of FIG. 11.
FIG. 11.

(a) Plasma density (in ), (b) hot-electron density (in ), and (c) azimuthal magnetic field (in MG) 6 ps after the beginning of the hot-electron beam with an initial divergence of 20° (half-angle), injected 60 ps earlier than in the simulation of Fig. 9.

Image of FIG. 12.
FIG. 12.

Radial lineouts of the hot-electron density near the dense core: At in Figs. 9(b) (blue, solid line) and 10(a) (red, dotted line) and at in Fig. 11(b) (black, dashed-dotted line).

Image of FIG. 13.
FIG. 13.

Fraction of the electron-beam energy deposited in the dense core (in the region with density ).

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2009-04-27
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Integrated simulations of implosion, electron transport, and heating for direct-drive fast-ignition targetsa)
http://aip.metastore.ingenta.com/content/aip/journal/pop/16/5/10.1063/1.3121244
10.1063/1.3121244
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