NDLI: X pinch with conical electrodes

Content Provider	IEEE Xplore Digital Library
Author	Shelkovenko, T.A. Pikuz, S.A. Cahill, A.D. Blanchard, J.T. Hammer, D.A. Sinars, D.B.
Copyright Year	2010
Description	Author affiliation: Laboratory of Plasma Studies, Cornell University, 439 Rhodes Hall, Ithaca, NY 14853, USA (Shelkovenko, T.A.; Pikuz, S.A.; Cahill, A.D.; Blanchard, J.T.; Hammer, D.A.) \|\| Sandia National Laboratories, P.O. Box 5800, Albuquerque, NM87185, USA (Sinars, D.B.)
Abstract	A standard X pinch consists of two or more fine wires that cross at a single point as the load of a 200-500 kA pulsed power generator. At the MA current level, multi-wire, multilayer and solid conical X pinches have been proposed and $tested^{1,2}.$ To simplify the X pinch load while retaining the favorable properties of the fine wire loads achieved at the 200-500 kA level, a hybrid configuration consisting of solid conical electrodes connected by a wire has been tested on the XP generator (45 ns risetime, 500 kA current). The X pinch consists of 60° cone electrodes made of tungsten with 5% copper with a 0.6-1.3 mm long wire between them. Al, Ti, Ni, NiCr, Cu, Mo, Pd, W and Au wires were loaded through 1 mm holes in the cones and tested in the experiments. Most of the wires were 50 (µm diameter. In the experiments, most of the X pinches generate an intense single burst of soft x-rays and develop a single hot spot that is less than 3 µm diameter. Also, they generate less hard x-ray intensity than is measured in standard X pinches. The new configuration can be used to design a system for reloading X pinches under vacuum for application as a source of x-ray radiation for point-projection backlighting of different plasma and biological objects.
Starting Page	1
Ending Page	1
File Size	118508
Page Count	1
File Format	PDF
ISBN	9781424454747
ISSN	07309244
e-ISBN	9781424454761
e-ISBN	9781424454754
DOI	10.1109/PLASMA.2010.5534347
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Wires Testing X-rays Solids Copper Plasma measurements Power generation Pulse generation Nonhomogeneous media
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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