NDLI: Dynamics of hybrid X pinches

Content Provider	IEEE Xplore Digital Library
Author	Shelkovenko, T.A. Pikuz, S.A. Hoyt, C.L. Cahill, A.D. Hammer, D.A. Tilikin, I.N. Dimitriev, A.S. Mingaleev, A.R. Ivanenkov, G.V. Mishin, S.N.
Copyright Year	2013
Description	Author affiliation: P.N. Lebedev Inst., Moscow, Russia (Tilikin, I.N.; Dimitriev, A.S.; Mingaleev, A.R.; Ivanenkov, G.V.; Mishin, S.N.) \|\| Cornell Univ., Ithaca, NY, USA (Shelkovenko, T.A.; Pikuz, S.A.; Hoyt, C.L.; Cahill, A.D.; Hammer, D.A.)
Abstract	Summary form only given. The hybrid X pinch (HXP) configuration, consisting of solid conical electrodes connected by a wire, has been studied on pulsers with current from 250 kA to 1.2 MA and current rise time from 45 ns to 170 $ns^{1}.$ The experiments have shown that for each generator, it is possible to find a wire material, diameter and length for which the HXP generates an intense single burst of soft x-rays and develops a single hot spot with micron size. However, the physics of the process of single hot spot formation has not been studied in detail. In order to understand the physical processes that occur in the HXPs we are carrying out an in-depth investigation of those processes and comparing them with the physics of standard X pinches (SXP). The early stages of HXP and SXP hot spot formation have been studied on the BIN (250 kA, 100 ns) and XP (400 kA, 100 ns) pulsers. Point-projection x-ray radiography with HXPs as the source of the x-ray radiation was used in most $experiments^{2}.$ Hybrid and standard X-pinches were placed in the return current circuit of the pulsers in place of one of the two rods. 70 kA and 120 kA current through the X pinches were measured on the BIN and XP pulsers, respectively. The experiments have shown that the early stages of standard and hybrid X-pinch hot spot formation are very different. The final stage of hot spot formation has been studied in the configuration with two HXPs placed in parallel in the full current central electrode gap. The final pinching process in the HXP is similar to the same stage of SXP. The influence of the inter electrode plasma on HXP dynamics also has been studied, and it does have a substantial effect.
Starting Page	1
Ending Page	1
File Size	118067
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6635211
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes X-rays Standards Wires Physics Plasmas Educational institutions
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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