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Fokker–Planck simulations for core heating in subignition cone-guiding fast ignition targets
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10.1063/1.3157249
/content/aip/journal/pop/16/6/10.1063/1.3157249
http://aip.metastore.ingenta.com/content/aip/journal/pop/16/6/10.1063/1.3157249

Figures

Image of FIG. 1.
FIG. 1.

Simulation condition for the case without cone tip.

Image of FIG. 2.
FIG. 2.

Temporal evolution of core heating profiles (colored map). The thin lines show the core density contours (1, 5, 50, 100, and ).

Image of FIG. 3.
FIG. 3.

Spatial profiles of (a) -directional component of fast electron current density and (b) azimuthal magnetic field observed at . The thin lines show the core density contours (1, 5, 50, 100, and ).

Image of FIG. 4.
FIG. 4.

Spatial profiles of (a) bulk electron temperature and (b) azimuthal magnetic field observed at . The thin lines show the core density contours (1, 5, 50, 100, and ).

Image of FIG. 5.
FIG. 5.

Temporal evolution of (a) heating rate in the dense core and (b) bulk ion temperature averaged over space by weighting with D–D fusion reaction rates for the CD core.

Image of FIG. 6.
FIG. 6.

Comparison of core heating properties between CD and DT cores in the case neglecting field effects. (a) Temporal evolution of heating rate in the dense core and (b) temporal evolution of bulk electron and ion temperatures averaged over space by weighting with D–D (or D–T) fusion reaction rates and .

Image of FIG. 7.
FIG. 7.

Spatial profiles of magnetic fields (upper) and the core heating rates (lower) obtained at in the simulations including field effects for the CD (left) and DT (right) cores.

Image of FIG. 8.
FIG. 8.

Comparison of core heating properties between CD and DT cores in the case including field effects. (a) Temporal evolution of heating rate in the dense core and (b) temporal evolution of bulk electron and ion temperatures and .

Image of FIG. 9.
FIG. 9.

Simulation conditions for the case with cone tip. The fast electron beam is injected inside the cone tip.

Image of FIG. 10.
FIG. 10.

Fast electron profiles: (a) longitudinal profile of fast electron beam power in the region of , [(b)–(d)] angular distribution of fast electrons of which energy range is (b) , (c) , and (d) (solid lines show the profiles after propagation in the cone tip and dotted lines for the profiles around the beam injection region).

Image of FIG. 11.
FIG. 11.

Spatial profiles of (a) transverse magnetic fields (T) and (b) heating rates for the case with Au cone tip observed at 3 ps. (c) and (d) are the corresponding ones for the case without cone tip, respectively.

Image of FIG. 12.
FIG. 12.

Dependence of (a) heating energy by fast electrons and (b) resultant core temperature on the cone-tip material. The values in the case without cone tip are shown by the arrows.

Tables

Generic image for table
Table I.

Comparison of core heating properties between CD and DT cores.

Generic image for table
Table II.

Comparison of core heating properties between the cases without and with cone tip.

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/content/aip/journal/pop/16/6/10.1063/1.3157249
2009-06-26
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Fokker–Planck simulations for core heating in subignition cone-guiding fast ignition targets
http://aip.metastore.ingenta.com/content/aip/journal/pop/16/6/10.1063/1.3157249
10.1063/1.3157249
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