Laser-Shock Compression and Hugoniot Measurements of Liquid Hydrogen to 55 GPa

Details Laser-Shock Compression and Hugoniot Measurements of Liquid Hydrogen to 55 GPa Laser-Shock Compression and Hugoniot Measurements of Liquid Hydrogen to 55 GPa

2011-01-06

arxiv.org/abs/1101.1143v1

Physics

Condensed Matter

Materials Science

8 pages, 7 figures, 2 tables, accepted for publication in Physical Review B

Scientific paper

The principal Hugoniot for liquid hydrogen was obtained up to 55 GPa under laser-driven shock loading. Pressure and density of compressed hydrogen were determined by impedance-matching to a quartz standard. The shock temperature was independently measured from the brightness of the shock front. Hugoniot data of hydrogen provide a good benchmark to modern theories of condensed matter. The initial number density of liquid hydrogen is lower than that for liquid deuterium, and this results in shock compressed hydrogen having a higher compression and higher temperature than deuterium at the same shock pressure.

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