NDLI: Magnetic Field Diffusion and Enhanced Resistivity in 12-cm-Diameter 200-ns 3.5-MA <formula formulatype=inline> <tex Notation=TeX>$Z$</tex></formula>-Pinch Implosions

Content Provider	IEEE Xplore Digital Library
Author	Niansheng Qi Failor, B.H. Levine, J.S. Goyer, J. Sze, H. Verma, A.
Copyright Year	1973
Abstract	Investigations of magnetic field diffusion and plasma resistivity in 12-cm-diameter triple-gas-puff Ar Z-pinch implosions were carried out by using planar laser-induced fluorescence (PLIF), a laser shearing interferometer (LSI), and a laser wavefront analyzer (LWA) on a 3.5-MA 200-ns generator. The PLIF measurements gave the initial Ar gas distributions. The implosion velocity and electron density profiles were measured from LWA and/or LSI. From these, the implosion plasma sheath thickness, ion density, mean ion charge states, temperatures, and implosion velocity are obtained, which allows us to calculate the classical plasma resistivity. A 1-D analytic magnetic field diffusion model is constructed and used to predict the imploding plasma sheath thickness and its resistivity. Based on comparisons of the experimental measurements and the diffusion model prediction, we found out that plasma resistivity is enhanced by the cross-field diffusion above the classical value, as high as 60 times the Spitzer's value. Details are given in this paper.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	545
Ending Page	553
Page Count	9
File Size	650148
File Format	PDF
ISSN	00933813
Volume Number	38
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic fields Conductivity Plasma measurements Magnetic field measurement Plasma sheaths Gas lasers Argon Large scale integration Magnetic analysis Plasma temperature plasma sheaths fluorescence interferometry plasma pinch
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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