Long Implosion Time Aluminum K-shell Radiation Scaling Experiments

Physics – Plasma Physics

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Scientific paper

Several experiments to study the K-shell emissions of long implosion time z-pinches have been performed over the last couple of years. These types of experiments have been motivated primarily by the need to development a z-pinch source for the DECADE-Quad pulsed power driver. In this work, aluminum wire arrays were fielded as the z-pinch load on the 2.5 MA Decade Module 2 (DM2) and on the 7 MA Saturn accelerator. A peak aluminum K-shell yield (1.8 keV photons) of 4 kJ was measured on DM2 at an implosion time of 260 ns while the Saturn experiments produced > 30 kJ with an implosion time of 160 ns. These results will be compared to 0-d calculations and discussed within the context of K-shell scaling laws. The long implosion time results will also be compared with short implosion time measurements. This work is supported by the Defense Special Weapons Agency and the Department of Energy.

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