NDLI: Plasma dynamics in radial wire array Z-pinches

Content Provider	IEEE Xplore Digital Library
Author	Lebedev, S.V. Ampleford, D.J. Bland, S.N. Bott, S. Chittenden, J.P. Ciardi, A. Jennings, C. Haines, M.G. Hall, G. Palmer, J.B.A. Rapley, J.
Copyright Year	2004
Description	Author affiliation: Blackett Lab., Imperial Coll., London, UK (Lebedev, S.V.; Ampleford, D.J.; Bland, S.N.; Bott, S.; Chittenden, J.P.; Ciardi, A.; Jennings, C.; Haines, M.G.; Hall, G.; Palmer, J.B.A.; Rapley, J.)
Abstract	Summary form only given. We describe experiments on the MAGPIE facility (1 MA, 250ns) with radial wire array Z-pinches, in which the wires form a wheel-spoke configuration. Variation of the global magnetic field and the corresponding JxB force along the wires in this configuration allows studying an effect of the global magnetic field on the ablation rate of the wires. The knowledge of the scaling of the ablation rate is important for interpretation of the dynamics of wire array Z-pinch plasma radiation sources. The parameters of the coronal plasma, which is pushed away from the wire cores by the JxB force, were measured using laser interferometry, X-ray and XUV imaging. The complete ablation of the wires near the inner electrode, where the ablation rate is the highest, triggers an axial acceleration of the plasma. This leads to formation of plasma configuration similar to a plasma focus and generation of the X-ray pulse. The results of the experiments with tungsten and aluminium radial wire arrays are presented.
Sponsorship	Plasma Sci. and Applications Committee of the IEEE Nuclear and Plasma Sci. Soc
File Size	72393
File Format	PDF
ISBN	0780383346
ISSN	07309244
DOI	10.1109/PLASMA.2004.1339604
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wire Plasma measurements Plasma accelerators Plasma x-ray sources Plasma sources Force measurement X-ray lasers X-ray imaging Magnetic cores Magnetic field measurement
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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