Thumbnail
Access Restriction
Open

Author Shelkovenko, T. A. ♦ Sinars, D. B. ♦ Pikuz, S. A. ♦ Hammer, D. A.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ELECTRON TEMPERATURE ♦ EMISSION SPECTRA ♦ IMAGES ♦ IMPLOSIONS ♦ PHYSICS ♦ PLASMA
Abstract Experimental results are presented from studies of the dynamics of X-pinch plasmas, formed using two fine wires that cross and touch at a single point (in the form of an X) as the load of a high current pulser. High-resolution (sub-ns in time and 2--3 {mu}m in space) x-ray radiographs of X pinches driven by current pulses that rise to 200--250 kA peak current in 40 ns show that {<=}300 {mu}m long Z pinches form in the region of the original wire cross-point a few ns prior to the first sub-ns intense x-ray bursts that are characteristic of an X pinch. The Z pinches implode to {<=}10 {mu}m diam and then appear to develop gaps in the radiographic images in one or two places, coincident in time with the x-ray burst(s). The emission spectra of the intense x-ray bursts from different wire materials indicate electron temperatures of 500--1300 eV and densities in excess of 10{sup 22}/cm{sup 3}.
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-04-01
Publisher Place United States
Journal Physics of Plasmas
Volume Number 8
Issue Number 4


Open content in new tab

   Open content in new tab