1. Laser-shock compression and Hugoniot measurements of liquid hydrogen to 55 GPa.
- Author
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Sano, T., Ozaki, N., Sakaiya, T., Shigemori, K., Ikoma, M., Kimura, T., Miyanishi, K., Endo, T., Shiroshita, A., Takahashi, H., Jitsui, T., Hori, Y., Hironaka, Y., Iwamoto, A., Kadono, T., Nakai, M., Okuchi, T., Otani, K., Shimizu, K., and Kondo, T.
- Subjects
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LIQUID hydrogen , *MECHANICAL shock , *CONDENSED matter , *DEUTERIUM , *TEMPERATURE - Abstract
The principal Hugoniot for liquid hydrogen was obtained up to 55 GPa under laser-driven shock loading. The 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. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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