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Quasispherical fuel compression and fast ignition in a heavy-ion-driven X-target with one-sided illumination
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10.1063/1.3563589
/content/aip/journal/pop/18/3/10.1063/1.3563589
http://aip.metastore.ingenta.com/content/aip/journal/pop/18/3/10.1063/1.3563589

Figures

Image of FIG. 1.
FIG. 1.

The X-target.

Image of FIG. 2.
FIG. 2.

[(a)–(d)] Location of compression annular beams showing specific beam energy deposition distributions (arbitrary units) and material interfaces (black lines) at the beginning of each pulse. (a) First compression beam annulus. (b) Second compression beam annulus. (c) Third compression beam. (d) shows the ignition beam deposition at peak compression density; notice that the beam stops inside the fuel region.

Image of FIG. 3.
FIG. 3.

[(a)–(d)] Example of conversion of a cylindrical implosion into a quasi-three-dimensional (hemispherical) convergent implosion. Density profiles for (a) beam annulus going through case opening, (b) a cylindrical shock is launched. (c) Beam annulus depositing energy in the case, (d) a spherical shock is launched.

Image of FIG. 4.
FIG. 4.

Radial density profiles at the midplane of the X-target as calculated by HYDRA with and without radiation at various times close to the ignition time.

Image of FIG. 5.
FIG. 5.

Material distribution at a time just before the injection of the ignition beam. The insets show the X-target and the zoomed region at the start of the HYDRA calculation.

Image of FIG. 6.
FIG. 6.

1D spherical equivalent geometry of the X-target used to determine candidate target builds and drive dynamics for higher-density fuel assembly.

Image of FIG. 7.
FIG. 7.

Heavy-ion pulse shape for fuel assembly. The total energy and peak powers are 4 (2) MJ and 300 (150) TW, respectively, for a full (half) sphere.

Tables

Generic image for table
Table I.

Results of initial LASNEX fuel assembly simulations in 1D spherical geometry. The values in parentheses for extensive quantities are those corresponding to an ideal spherically converging X-target with a 45° half-angle, which is 50% of the full-sphere values.

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/content/aip/journal/pop/18/3/10.1063/1.3563589
2011-03-09
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quasispherical fuel compression and fast ignition in a heavy-ion-driven X-target with one-sided illumination
http://aip.metastore.ingenta.com/content/aip/journal/pop/18/3/10.1063/1.3563589
10.1063/1.3563589
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