Long-Implosion-Time Aluminum Wire-Array Experiments on the 10-MA Saturn Generator: K-shell scaling and energetics

Details Long-Implosion-Time Aluminum Wire-Array Experiments on the 10-MA Saturn Generator: K-shell scaling and energetics Long-Implosion-Time Aluminum Wire-Array Experiments on the 10-MA Saturn Generator: K-shell scaling and energetics

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aps..dppgp1056d&link_type=abstract

American Physical Society, 42nd Annual Meeting of the APS Division of Plasma Physics combined with the 10th International Congre

Physics

Plasma Physics

Scientific paper

Experiments plus modeling have shown that wire array implosions have four major phases: the individual wire initiation; the pre-cursor formation and merger; the implosion; and the stagnation with associated emissions. To verify the effect of the longer implosion times had on these wire dynamics, a series of wire number scans have been performed on the Saturn generator with aluminum wires. The data from these confirm that the critical wire gap is increased when the implosion times are increased. The wire number scan also indicated that the K-shell powers increased with wire number (except for the highest wire numbers) but that the K-shell yield was relatively insensitive. We will present data from these shots along with the length and radius scans which were conducted to optimize the yield. Most of these experiments exhibited total radiated yields between 2 to 4 times the zero dimensional kinetic energy. This data will be discussed in light of the various heating models for z-pinches. Sandia operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94AL85000.

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