Tungsten Long Implosions on the Saturn Generator

Details Tungsten Long Implosions on the Saturn Generator Tungsten Long Implosions on the Saturn Generator

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aps..dpp.r8s14d&link_type=abstract

American Physical Society, Division of Plasma Physics Meeting, November 16-20, 1998 New Orleans, LA, abstract #R8S.14

Physics

Plasma Physics

Scientific paper

Recent success on the Saturn and Z accelerators at Sandia National Laboratories have demonstrated the ability to scale z-pinch parameters to increasingly larger current pulsed power facilities. Next generation machines will require even larger currents (>20 MA), placing further demands on pulsed power technology. To this end, experiments have been carried out on Saturn operating in a long pulse mode, investigating the potential capability of lower voltages and longer implosion times while still maintaining pinch fidelity. High wire number, 25 mm diameter tungsten wire arrays were imploded with implosion times ranging from 130 to 240 ns. The results were comparable to those observed in the Saturn short pulse mode, with rise times on the order of 4.5 to 6.5 ns. This latter result suggest that instabilities, which dominated previous long pulse experiments, are less of a factor here. The experimental data will be presented, along with 2D radiation magnetohydrodynamic simulations used to explain and reproduce the experiment.

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