Studies of Radiative and Implosion Characteristics From Brass Planar Wire Arrays

Ouart, N. D.; Safronova, A.S.; Kantsyrev, V.L.; Esaulov, A. A.; Williamson, K.; Shrestha, I.; Osborne, G. C.; Weller, M. E.

doi:10.1109/tps.2010.2040093

Cited by 21 publications

(8 citation statements)

References 13 publications

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“…Inc., NM, USA]). The non-LTE collisional-radiative calculation [14] was used to determine a plasma electron temperature T e in the cavities with PWAs. Highest T e was obtained for DPWA sources (for example, T e 400 eV from Cu L-shell spectra obtained with x-ray spectrometer).…”

Section: Demonstration Of Equally Redistributed Currents and The Syncmentioning

confidence: 99%

New compact hohlraum configuration research at the 1.7 MA Z-pinch generator

Kantsyrev¹,

Chuvatin²,

Rudakov³

et al. 2014

AIP Conference Proceedings

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Abstract.A new compact Z-pinch x-ray hohlraum design with parallel-driven x-ray sources was experimentally demonstrated in a full configuration with a central target and tailored shine shields (to provide a symmetric temperature distribution on the target) at the 1.7 MA Zebra generator. This presentation reports on the joint success of two independent lines of research. One of these was the development of new sources --planar wire arrays (PWAs). PWAs turned out to be a prolific radiator. Another success was the drastic improvement in energy efficiency of pulsed-power systems, such as the Load Current Multiplier (LCM). The Zebra/LCM generator almost doubled the plasma load current to 1.7 MA. The two above-mentioned innovative approaches were used in combination to produce a new compact hohlraum design for ICF, as jointly proposed by SNL and UNR. Good agreement between simulated and measured radiation temperature of the central target is shown. Experimental comparison of PWAs with planar foil liners (PFL) -another viable alternative to wire array loads at multi-MA generators show promising data. Results of research at the University of Nevada Reno allowed for the study of hohlraum coupling physics at University-scale generators. The advantages of new hohlraum design applications for multi-MA facilities with W or Au double PWAs or PFL x-ray sources are discussed.

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Section: Demonstration Of Equally Redistributed Currents and The Syncmentioning

confidence: 99%

New compact hohlraum configuration research at the 1.7 MA Z-pinch generator

Kantsyrev¹,

Chuvatin²,

Rudakov³

et al. 2014

AIP Conference Proceedings

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show abstract

“…More detailed description of this model can be found, for example, in Ref. [4]. Non-LTE calculations of the ionization balance in Cu plasma are compared with the results produced by two LTE models in Fig.…”

Section: Comparison With Non-lte Atomic Modelmentioning

confidence: 99%

Plasma ionization and resistivity models for low-, mid- and higher-atomic number plasmas and their applications to radiative properties of z-pinches

Esaulov

Johnson

Safronova

et al. 2012

High Energy Density Physics

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“…References [18,19] studied the L-shell radiative and implosion characteristics from brass planar wire arrays on the Zebra pulsed power generator. The diagnostic suite was the same as noted above, but the time-gated spectrometer was set to observe L-shell radiation instead.…”

Section: Summary Of Previous L-shell Investigationmentioning

confidence: 99%

“…The ion temperature is assumed to be equal to the peak electron temperature from the L-shell spectral analysis in Ref. [18]. Section 3 noted that the total ion density in the L-shell region is w5 Â 10 17 cm À3 .…”

Section: Cold Ka Modeling and Analysismentioning

confidence: 99%