Determination of Pressure Response From Multi-Frame Monochromatic X-ray Backlighting
Abstract
The shockless compression of a cylindrical liner Z-pinch is explored as a method to obtain high pressure (10's of Mbar) states while minimizing the entropy production in the target material. Experiments with beryllium liners on the Z-machine resulted in radiographic profiles at four different times in the liner's trajectory. From these results, we infer the longitudinally and azimuthally averaged material density, material pressure, and magnetic pressure along with their uncertainties. By combining these results with magnetohydrodynamic simulation, we obtain a pressure versus density response in solid beryllium up to 2.4 Mbar. Through the use of synthetic diagnostics and simulation we conclude that the pressure versus density response for material samples in the 10 Mbar range is achievable on the Z-machine with improved radiographic capability.
Sandia is a multiprogram laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Company, for the US Department of Energy's National Nuclear Security Administration under Contract No. DE-ACO4-94AL85000.- Publication:
-
APS Shock Compression of Condensed Matter Meeting Abstracts
- Pub Date:
- June 2011
- Bibcode:
- 2011APS..SHK.B4003M