Mass and wire number effects of long implosion time Aluminum Z-pinches on Saturn

Physics – Plasma Physics

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Scientific paper

Aluminum K-shell emissions from long implosion time Z-pinches have been studied on the 7 MA Saturn accelerator. These experiments, motivated in part by the need to develop Z-pinch sources for the DECADE-Quad pulsed power driver, were designed to investigate the effects of wire number and mass on the Al K-shell radiation. The wire arrays were 40 mm in diameter and the wire number was varied from 32 to 282, holding the mass constant. In a separate scan, the load mass was varied from 400 to 2000 μg/cm, resulting in implosion times of 130 to 180 ns. K-shell yields greater than 60 kJ were measured with pulsewidths as short as 8 ns. These results will be compared with calculations and discussed within the context of K-shell scaling laws. Comparisons will also be made to short implosion time Al experiments performed on Saturn. *This work is supported by the Defense Threat Reduction Agency and the Department of Energy. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94Al85000.

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