Off-Hugoniot measurements of water and hydrogen using laser-produced shocks in diamond anvil cells
Abstract
Laser-driven shocks in targets make it possible to study the equation of state of samples well into the hundreds-of-GPa regime. Generally such experiments employ a sample initially at normal density and standard pressure, thereby providing data on the principal Hugoniot. Diamond anvil cells can be used to isothermally compress a sample, changing the initial state of the sample. We demonstrate a technique to use a cell to pre-compress a sample to several GPa and then strong-shock the sample with a laser to provide shock data off the principal Hugoniot. This novel use of a modified diamond anvil cell can be used to further map out the equation of state phase space.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- November 2002
- Bibcode:
- 2002APS..DPPBP1105M