Using 1-D MHD Calculations to Analyze Time-resolved Z-pinch Data

Physics – Plasma Physics

Scientific paper

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Scientific paper

A systematic analysis is made of a set of three 90 wire, aluminum, z-pinch experiments that were conducted on the Saturn generator at the Sandia National Laboratories. The analysis utilizes one-dimensional (1-D) radiation-magneto-hydrodynamics simulations of these experiments, which drive z-pinch implosions using the measured Saturn circuit parameters. In these experiments, a variety of fiduciated measurements were made of the pinch implosion time, (2) the time-resolved size of the K-shell emission region, (3) the time-resolved amount of hydrogen-like to helium-like emission, (4) the total power and K-shell power outputs, and (5) the time-resolved slope of the continuum emission from which a time-resolved electron temperature can be derived. The 1-D simulations were used to calculate these same quantities in order to make comparisons with the five measured quantities. From these comparisons, we analyze whether or not different dynamical assumptions can or can not be invoked to explain the ensemble of or parts of the data. Results of this analysis will be described in this talk.

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