Use of Z-pinch sources for high-pressure shock wave studies Page: 4 of 17
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Abstract
In this paper, we will discuss the use of z-pinch sources for shock wave studies at multi-Mbar
pressures. Experimental plans to use the technique for absolute shock Hugoniot measurements
are discussed.
Recent developments have demonstrated the use of pulsed power techniques for producing
intense radiation sources (Z pinches) for driving planar shock waves in samples with spatial
dimensions significantly larger than possible with other radiation sources. Initial indications are
that using Z pinch sources for producing Planckian radiation sources in secondary hohlraums can
be used to drive shock waves in samples with diameters to a few millimeters and thicknesses
approaching one millimeter in thickness. These dimensions provides the opportunity to measure
both shock velocity and the particle velocity behind the shock front with accuracy comparable to
that obtained with gun launchers. In addition, the peak hohlraum temperatures of nearly 150 eV
that are now possible with Z pinch sources result in shock wave pressures approaching 45 Mbar
in high impedance materials such as tungsten and 10-15 Mbar in low impedance materials such as
aluminum and plastics. In this paper, we discuss the use of Z pinch sources for making accurate
absolute EOS measurements in the megabar pressure range.2
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Konrad, C.H.; Asay, J.R. & Hall, C.A. Use of Z-pinch sources for high-pressure shock wave studies, report, January 1, 1998; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc691401/m1/4/: accessed May 7, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.