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A study of vacuum arc ion velocities using a linear set of probes

Description: The most likely velocity of ions moving away from vacuum arc cathode spots was measured using a set of probes along the path of plasma expansion. The goal was to determine how much, if any, change of the ion drift velocity occurs in the expanded plasma. The arc discharge current was perturbed to create plasma density markers whose travel is picked up by the set of probes. It was found that the perturbation with current oscillations did not result in consistent data because ion current maxima an… more
Date: July 15, 2008
Creator: Hohenbild, Stefan; Grubel, Christoph; Yushkov, Georgy Yu.; Oks, Efim M. & Anders, Andre
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Creating metallic under-dense radiators by electron beam heating prior to laser impact

Description: A pulsed, relativistic electron beam can heat a metal foil to a plasma state, and initiate an expanding flow into vacuum. At a given time in its evolution, this flow fills a nearly spherical volume with nearly uniform density, assuming a rapid expansion prior to any condensation. A metal cloud produced in this way can serve as a target of intense laser illumination to create an under-dense radiator of x-rays. The phrase ''under-dense radiator'' means that the cloud, assumed ionized, has a plasm… more
Date: December 15, 1998
Creator: Garcia, M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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