Probing the Hydrogen Melting Line at High Pressures by Dynamic Compression

Journal Article · Fri Nov 07 00:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.101.194801· OSTI ID:21179893

Grinenko, A; Gericke, D O; Vorberger, J ^[1]; Glenzer, S H ^[2]

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1. Centre for Fusion, Space and Astrophysics, Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom)
2. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States)

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.

• OSTI ID: 21179893
• Journal Information: Physical Review Letters, Vol. 101, Issue 19; Other Information: DOI: 10.1103/PhysRevLett.101.194801; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
COMPRESSION
DISSOCIATION
EQUATIONS OF STATE
HEAVY IONS
HYDROGEN
ION BEAMS
MELTING
SIMULATION
X-RAY DIFFRACTION