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The first measurements of soft x-ray flux from ignition scale Hohlraums at the National Ignition Facility using DANTE (invited)a)
a)Invited paper published as part of the Proceedings of the 18th Topical Conference on High-Temperature Plasma Diagnostics, Wildwood, New Jersey, May, 2010.
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10.1063/1.3491032
/content/aip/journal/rsi/81/10/10.1063/1.3491032
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/10/10.1063/1.3491032
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic layout of the scale-0.7 Hohlraum target with directional locations of DANTE, static x-ray imager (SXI), and backscatter diagnostics (full aperture backscatter station and near backscatter imager). (b) Scaling of the (●) measured peak radiation fluxes compared with that of flux-limited XSN simulation with a flux limit of (—) 0.05 and of the DCA model with a flux limit of (- - -) 0.15. The peak radiation temperatures (◻) measured are also plotted.

Image of FIG. 2.
FIG. 2.

(a) (●) input and (—) output signals from a cable calibration with the (- - -) deconvolved signal using the derived constrained least-squares filter. (b) (●)The input and (—) output signals from a cable calibration with the (- - -) deconvolved signal from an in situ calibration of the cable with a shaped pulse.

Image of FIG. 3.
FIG. 3.

(a) Schematic setup of the calibration light box with a radiograph of a portion of a grid. (b) The calibration values of the sieve transmission using the light box.

Image of FIG. 4.
FIG. 4.

(a) Schematic of the sphere target experimental layout viewed from (90–175) with location of the x-ray instruments in (polar-azimuthal) angles. (b) Plot of the (—) incident laser power and the (- - -) measured x-ray power vs time along with comparison of the integral of the radiated power from (—) a simulation and (- - -) the measured values as a function of time.

Image of FIG. 5.
FIG. 5.

(a) Schematic diagram of the half-Hohlraum experimental layout with target dimensions. (b) DANTE measurements of the flux for the (- - -, gray) NIF early light half hohlraum experiments and the (—, black) current experiments using the same size target with the laser pulse shape for both the (- - -, gray) NIF early light and the (—, black) current experiments.

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/content/aip/journal/rsi/81/10/10.1063/1.3491032
2010-10-26
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The first measurements of soft x-ray flux from ignition scale Hohlraums at the National Ignition Facility using DANTE (invited)a)
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/10/10.1063/1.3491032
10.1063/1.3491032
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