corner
corner

Phys. Rev. Lett. 101, 194801 (2008) [4 pages]

Probing the Hydrogen Melting Line at High Pressures by Dynamic Compression

Download: PDF (633 kB) Buy this article Export: BibTeX or EndNote (RIS)

A. Grinenko1, D. O. Gericke1, S. H. Glenzer2, and J. Vorberger1
1Centre for Fusion, Space and Astrophysics, Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
2Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551, USA

Received 6 June 2008; published 6 November 2008

We investigate the capabilities of dynamic compression by intense heavy ion beams to yield information about the high pressure phases of hydrogen. Employing ab initio simulations and experimental data, a new wide range equation of state for hydrogen is constructed. The results show that the melting line up to its maximum as well as the transition from molecular fluids to fully ionized plasmas can be tested with the beam parameters soon to be available. We demonstrate that x-ray scattering can distinguish between phases and dissociation states.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.194801
DOI:
10.1103/PhysRevLett.101.194801
PACS:
41.75.Ak, 51.30.+i, 52.27.Gr, 64.70.dj