HEDLP FESAC Subpanel Workshop Washington, DC 25-27 August 2008

1. Creating warm and hot dense matter Hot Dense Matter (implosion core) Hot Dense Matter (isochoric heating) HEDLP FESAC Subpanel Workshop Washington, DC 25-27 August 2008 S. P. Regan University of Rochester Laboratory for Laser Energetics

2. Summary HEDP with exotic combinations of temperature and density can be explored using long and short pulse laser drivers • States of warm and hot dense matter can be created with current and future HED facilities using: • laser-ablation-driven shock-waves (10-70 Mbar) • relativistic-electron-energy deposition in small mass, solid-density targets. • HEDP is well diagnosed using x-ray absorption and emission spectroscopy, Ka,b emission spectroscopy, and spectrally-resolved x-ray scattering. • HEDP experiments can: • study new extreme states of matter (e.g., off-Hugoniot) • validate astrophysical models (e.g., opacity, equation of state, hydrodynamic instability) • investigate the physics of inertial confinement fusion (e.g., compressibility of thermonuclear fuel, a=Pfuel/PFermi)

3. Collaborators Creating warm and hot dense matter S. P. Regan, P. Nilson,a R. Betti,a J. A. Delettrez, R. Epstein, V. Yu. Glebov, V. N. Goncharov, R. L. McCrory, D. D. Meyerhofer, J. Myatt, P. B. Radha, T. C. Sangster, H. Sawada, V. A. Smalyuk, W. Seka, C. Stoeckl, W. Theobald and B. Yaakobi, Laboratory for Laser Energetics University of Rochester aalso FSC R. Mancini University of Nevada-Reno D. Haynes Los Alamos National Laboratory S. Glenzer, N. Landen, P. Neumayer, T. Doeppner Lawrence Livermore National Laboratory G. Gregori Oxford University

4. Warm dense matter can be diagnosed with spectrally-resolved x-ray scattering and x-ray absorption spectroscopy X-ray Al 1s-2p absorption spectroscopy Spectrally-resolved x-ray scattering 10-70 Mbar Sawada et al., PoP to be submitted (2008). Boehly et al., PRL 87, 145003 (2001). Planar shocked liquid deuterium and H/He mixtures are being investigated. Sawada et al., PoP 14, 122703 (2007). Glenzer et al., PRL 90, 175002 (2003). Glenzer et al., PRL 98, 065022 (2007). H. Lee et al., submitted to PRL (2008).

5. The density and temperature of the warm dense matter are controlled by the pulse shape of the laser drive shaped pulse square pulse Higher density, Fermi-degenerate matter can be created with spherically converging shell targets Regan et al., submitted to PRL (2008).

6. Planar metallic target (e.g., Cu)

7. hLe = 20% and solid-density, 200 eV plasmas are diagnosed using Ka,b spectroscopy Expect keV, solid-density plasmas with OMEGA EP.

8. Hot dense matter is created in implosions of Ar-doped, deuterium gas-filled plastic shell targets Hot Dense Matter (implosion core) Ar K-shell emission spectroscopy Regan et al., PoP 9, 1357 (2001).

9. HEDP with exotic combinations of temperature and density will be explored using long and short pulse laser drivers Hot Dense Matter (implosion core) Hot Dense Matter (isochoric heating) Future directions: • X-ray scattering from shocked liquid deuterium and H/He mixtures (EOS) • Create keV, solid density plasmas (off Hugoniot) with small mass targets • Isochorically heat, shocked matter • Explore conditions of planetary and stellar interiors • Short pulse backlighters

10. Summary/Conclusions HEDP with exotic combinations of temperature and density can be explored using long and short pulse laser drivers • States of warm and hot dense matter can be created with current and future HED facilities using: • laser-ablation-driven shock-waves (10-70 Mbar) • relativistic-electron-energy deposition in small mass, solid-density targets. • HEDP is well diagnosed using x-ray absorption and emission spectroscopy, Ka,b emission spectroscopy, and spectrally-resolved x-ray scattering. • HEDP experiments can: • study new extreme states of matter (e.g., off-Hugoniot) • validate astrophysical models (e.g., opacity, equation of state, hydrodynamic instability) • investigate the physics of inertial confinement fusion (e.g., compressibility of thermonuclear fuel, a=Pfuel/PFermi)