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Efficient laser-induced 6-8 keV x-ray production from iron oxide aerogel and foil-lined cavity targets
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10.1063/1.4740076
/content/aip/journal/pop/19/8/10.1063/1.4740076
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/8/10.1063/1.4740076

Figures

Image of FIG. 1.
FIG. 1.

Photographs of an iron-oxide-aerogel target: (a) side view, (b) end view.

Image of FIG. 2.
FIG. 2.

Photographs of a steel-lined cavity target: (a) side view, (b) end view, (c) inset of end view.

Image of FIG. 3.
FIG. 3.

Schematic of the target and laser beams showing the three cones orientations.

Image of FIG. 4.
FIG. 4.

Laser irradiation patterns on (a) the end of aerogel targets and (b) the inside wall of cavity targets.

Image of FIG. 5.
FIG. 5.

Diagnostics orientation in the first campaign.

Image of FIG. 6.
FIG. 6.

Diagnostics orientation in the second campaign.

Image of FIG. 7.
FIG. 7.

Electron density maps simulated by LASNEX, for different targets, at 1 and 2 ns. Only one quadrant of the simulation is drawn (z is the cylinder axis).

Image of FIG. 8.
FIG. 8.

Electron temperature maps simulated by LASNEX, for different targets, at 1 and 2 ns.

Image of FIG. 9.
FIG. 9.

K-shell x-ray flux vs time as simulated by LASNEX.

Image of FIG. 10.
FIG. 10.

HENWAY spectra from various aerogel targets.

Image of FIG. 11.
FIG. 11.

HENWAY spectra from various steel cavity targets.

Image of FIG. 12.
FIG. 12.

HENWAY vs SCRAM spectra comparison for a aerogel. Note that the SCRAM simulated spectra have been normalized to the same maximum value.

Image of FIG. 13.
FIG. 13.

Fe K-shell x-ray power as a function of time for aerogel targets of different densities, as recorded by DANTE. Each line corresponds to a specific shot, the dotted lines being from the second campaign.

Image of FIG. 14.
FIG. 14.

Fe K-shell x-ray power as a function of time for cavity targets of different steel thicknesses, as recorded by DANTE. Each line corresponds to a specific shot, the dotted lines being from the second campaign.

Image of FIG. 15.
FIG. 15.

Fe K-shell emission images at different times, for two different densities of aerogel targets.

Image of FIG. 16.
FIG. 16.

Fe K-shell emission images at different times, for a cavity target. Note that the times are later than for the aerogel targets in Fig. 15.

Image of FIG. 17.
FIG. 17.

Fe K-shell yields from (a) aerogel and (b) cavity targets, as measured by DANTE, HENWAY, and DMX.

Image of FIG. 18.
FIG. 18.

Total x-ray yields from (a) aerogel and (b) cavity targets, as measured by DANTE and DMX.

Image of FIG. 19.
FIG. 19.

Typical time-resolved SRS spectra from the FABS instrument for (a) aerogel, (b) aerogel, and (c) 1 -thick steel cavity. The line at 527 nm is a fiducial representing the laser duration.

Image of FIG. 20.
FIG. 20.

Typical time-resolved SBS spectra from the FABS instrument for (a) aerogel, (b) aerogel, and (c) 1 -thick steel cavity. The line at 351 nm is a fiducial representing the laser duration.

Image of FIG. 21.
FIG. 21.

Laser-to-x-ray conversion efficiencies obtained in various experiments, as reported in Ref. 10. Arrows indicate the results from the present paper.

Tables

Generic image for table
Table I.

Experimental laser-to-x-ray conversion efficiencies (CE) in the Fe K-shell range (6.5–8.5 keV) and the full x-ray range. Results from LASNEX simulations are provided in parentheses.

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/content/aip/journal/pop/19/8/10.1063/1.4740076
2012-08-01
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Efficient laser-induced 6-8 keV x-ray production from iron oxide aerogel and foil-lined cavity targets
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/8/10.1063/1.4740076
10.1063/1.4740076
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