Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..dppjr1001h&link_type=abstract
American Physical Society, 44th Annual Meeting of the Division of Plasma , abstract #JR1.001
Astronomy and Astrophysics
Astrophysics
Scientific paper
High energy density (HED) facilities are unique in accessing extreme conditions of temperature and pressure in the laboratory, allowing replication of conditions relevant to astrophysics, planetary interiors, and stellar physics, for example. In recent years, experiments have significantly matured, and are now routinely providing high quality data in the areas of hydrodynamics and implosions, radiation transport and opacity, hugoniot and isentropic equation-of-state at high pressure, and material dynamics. Current facilities include high energy lasers, such as the 60 beam Omega laser at the Laboratory of Laser Energetics at Rochester and other kJ class lasers worldwide, as well as pulsed power machines, such as the Z facility at Sandia National Laboratories. 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) will potentially reach regimes of ˜ 10 keV material temperature and ˜ GB pressure in the laboratory, allowing study of exciting new areas of physics. In addition, the use of high intensity, high power (>10^17 W/cm^2) lasers shows promise both in the creation of new material regimes and as a diagnostic probe for high energy density experiments. We will review capabilities of these facilities, highlight examples of recent results in these areas, and discuss new regimes achievable on NIF, next generation pulsed power facilities and high intensity lasers.
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