Investigation of warm dense matter by combining static and dynamic compression
- Univ. of Rochester, NY (United States)
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- University of California, Berkeley, CA (United States)
Shock-compressing material samples that are precompressed with diamond-anvil cells (DACs) enables benchmarking equation of state measurements over a wide range of high-pressure conditions, in particular, warm dense matter relevant to planetary science, astrophysics, and inertial confinement fusion. These targets provide optical access to the shocked sample, so optical velocity interferometry and pyrometry are typical diagnostics. We present a scaling for the coupling of the laser drive to the shock pressure in DACs based on over 150 prior experiments that can be used to design future experiments. For initial static pressures ≤ 5 GPa, using a sapphire window mitigates the effect of photoionization compared to diamond windows and allows the measurement of shock pressures up to 1 TPa with optical diagnostics.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of Rochester, NY (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- Grant/Contract Number:
- AC52-07NA27344; NA0004144; SC0020340
- OSTI ID:
- 3001406
- Alternate ID(s):
- OSTI ID: 2998815
- Report Number(s):
- LLNL--JRNL-2002942; 2024-528, 2124, 3136
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 10 Vol. 32; ISSN 1070-664X; ISSN 1089-7674
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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