High-Precision Hugoniot measurements for CH foams in the 2-9 Mbar range
Abstract
Absolute Hugoniot measurements for plastic foams at 10% of solid CH density and supporting simulation results are reported. Planar foam slabs, 400 μm thick and 500 μm wide, some of which were covered with a 10 μm solid plastic ablator, were directly driven with 4 ns long Nike KrF 248 nm wavelength laser pulses that produced strong shock waves in the foam. The shock and mass velocities in our experiments were up to 104 km/s and 84 km/s, respectively, and the shock pressures up to 9 Mbar. The motion of the shock and ablation fronts was recorded using side-on monochromatic x-ray imaging radiography. The steadiness of the observed shock and ablation fronts within 1
Work supported by the U.S. DOE/NNSA. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. DOE's NNSA under contract DE-NA-0003525.- Publication:
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APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- 2018
- Bibcode:
- 2018APS..DPPUO7003A