Present and Future Capabilities of High Energy Density Experiments*

Details Present and Future Capabilities of High Energy Density Experiments* Present and Future Capabilities of High Energy Density Experiments*

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apr.k7001m&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

In recent years, experiments on high energy lasers and pulsed power facilities have successfully reached extreme conditions of temperature and pressure in the laboratory, allowing replication of conditions relevant to areas of high energy density (HED) plasma physics (for example, astrophysics, planetary interiors, stellar physics, and Inertial Confinement Fusion). Experiments in these areas are now routinely providing high quality data in the areas of high energy density hydrodynamics and implosions, radiation transport, and equation-of-state. Current facilities include pulsed-power accelerators, such as the Z facility at Sandia National Laboratories, and high-energy lasers, such as the 60-beam Omega laser at the Laboratory of Laser Energetics at Rochester, as well as other MA-class pulsed-power facilities and kJ-class lasers worldwide. These facilities routinely conduct experiments at radiation temperatures of 200 eV and pressures up to 40 MBar. New facilities, such as the National Ignition Facility (NIF) and the refurbished Z facility, will extend the experimental regimes to higher temperatures and densities. The National Petawatt laser initiative is examining the physics regimes that could be explored by coupling energetic short-pulse lasers (multi-kJ energies at ps pulse widths) to experiments on these large HED facilities. We will review capabilities of the existing HED facilities, highlight examples of recent experimental results in HED plasma physics, discuss new regimes that might be achievable on next-generation facilities (e.g. NIF and refurbished Z), and explore the potential applications resulting from coupling multi-PW laser pulses with HED plasmas produced on these facilities. *Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94AL85000.

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