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Author Li, M. ♦ Li, Y. ♦ Zhang, J. H. ♦ Sun, T. P. ♦ Wang, L. P. ♦ Sheng, L. ♦ Qiu, M. T. ♦ Mao, W. T. ♦ Wu, J. ♦ Li, X. W.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ABLATION ♦ CAMERAS ♦ COATINGS ♦ DIELECTRIC MATERIALS ♦ EXPANSION ♦ IMAGES ♦ IMPLOSIONS ♦ LASERS ♦ PLASMA ♦ PRECURSOR ♦ TUNGSTEN ♦ VELOCITY ♦ WIRES
Abstract This paper presents experimental results on the effects of insulating coatings on tungsten planar wire array Z-pinches on an 80 kA, 100 ns current facility. Expansion velocity is obviously increased from ∼0.25 km/s to ∼3.5 km/s by using the insulating coatings. It can be inferred that the wire cores are in gaseous state with this fast expansion velocity. An optical framing camera and laser probing images show that the standard wire arrays have typical ablation process which is similar to their behaviors on mega-ampere facilities. The ablation process and precursor plasma are suppressed for dielectric tungsten wires. The wire array implosion might be improved if these phenomena can be reproduced on Mega-ampere facilities.
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-07-15
Publisher Place United States
Journal Physics of Plasmas
Volume Number 23
Issue Number 7


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