Planar Wire Array as Powerful Radiation Source

Kantsyrev, V.L.; Rudakov, L. I.; Safronova, A.S.; Fedin, D.; Иванов, В. В.; Velikovich, A. L.; Esaulov, A. A.; Chuvatin, A. S.; Williamson, K.; Ouart, N. D.; Nalajala, V.; Osborne, G. C.; Shrestha, I.; Yilmaz, M.F.; Pokala, S.; Laca, P.J.; Cowan, T. E.

doi:10.1109/tps.2006.883395

Cited by 42 publications

(29 citation statements)

References 17 publications

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“…[8][9][10][11] both subkeV and total radiated energies are ∼ 3−5 times higher then the calculated kinetic energy of the imploding load. Some new unconventional mechanisms of plasma heating has been proposed, such as the anomalous plasma heating (see, for example, Refs.…”

Section: B Double Planar Wire Arraymentioning

confidence: 64%

“…In its turn, the implosion character depends on the planar array geometry. Below in this section we shall consider single planar wire array (SPWA) and double planar wire array (DPWA), built of a single wire row [8,9] and two wire rows [11] respectively. Two Zebra shots No.…”

Section: Wadm Modeling Of Planar Wire Arraysmentioning

confidence: 99%

“…This search has inspired several extensive programs for studying the wire array implosion at 1 MA currents at the university based laboratories, first at the Imperial College in UK [6,7] and later at the University of Nevada, Reno (UNR) [8][9][10][11] and Cornell University (see, for example, Ref. [12]) in the United States.…”

mentioning

confidence: 99%

“…In 2005 a novel wire array configuration, a planar wire array, was tested as the x-ray radiation source at 1 MA Zebra facility at UNR [8]. Since that time numerous experiments have demonstrated that among all the other low-wirenumber loads the planar wire arrays yield the highest x-ray radiation energies and powers [9][10][11].…”

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confidence: 99%

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Wire ablation dynamics model and its application to imploding wire arrays of different geometries

et al. 2012

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The paper presents an extended description of the amplified Wire Ablation Dynamics Model (WADM) that accounts in a single simulation for the processes of the wire ablation and implosion of a wire array load of arbitrary geometry and wire material composition. To investigate the role of the wire ablation effects, the implosions of cylindrical and planar wire array loads at the university based generators Cobra (Cornell University) and Zebra (University of Nevada, Reno) have been analyzed. The analysis of the experimental data shows that the wire mass ablation rate can be described as a function of the current through the wire and some coefficient defined by the wire material properties. The aluminum wires were found to ablate with the highest rate, while the copper ablation is the slowest one. The lower wire ablation rate results in higher inward velocity of the ablated plasma, higher rate of the energy coupling with the ablated plasma, and more significant delay of implosion for a heavy load due to the ablation effects, which manifest the most in a cylindrical array configuration and almost vanish in a single planar array configuration. The WADM is an efficient tool suited for wire array load design and optimization in wide parameter ranges, including the loads with specific properties needed for the Inertial Confinement Fusion research and laboratory astrophysics experiments. The data output from the WADM simulation can be used to simplify the radiation MHD modeling of the wire array plasma.

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Section: B Double Planar Wire Arraymentioning

confidence: 64%

Section: Wadm Modeling Of Planar Wire Arraysmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Wire ablation dynamics model and its application to imploding wire arrays of different geometries

et al. 2012

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“…The combined X-pinches studied in this work had an Al 5056 (5% Mg) wire in the anode (cathode) loop and an Mo wire in a cathode (anode) loop [13]. PWAs are loads that have been shown to radiate the highest peak power and energy in sub-kiloelectron volt and kiloelectron volt of all loads at the 1 MA ZEBRA generator at UNR [14,15]. The combined Mo and Al PWAs had from 10 to 15 wires arranged in a plane where the Mo wires were replaced with two Al 5056 wires either on ends or in the center.…”

Section: Introductionmentioning

confidence: 99%