Measurement of the dynamic response of compressed hydrogen by inelastic X-ray scattering

K. Falk, A. P. Jephcoat, B. J.B. Crowley, R. R. Fäustlin, C. Fortmann, F. Y. Khattak, A. K. Kleppe, D. Riley, S. Toleikis, J. Wark, H. Wilhelm, G. Gregori

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Abstract

Measurement of the dynamic properties of hydrogen and helium under extreme pressures is a key to understanding the physics of planetary interiors. The inelastic scattering signal from statically compressed hydrogen inside diamond anvil cells at 2.8 GPa and 6.4 GPa was measured at the Diamond Light Source synchrotron facility in the UK. The first direct measurement of the local field correction to the Coulomb interactions in degenerate plasmas was obtained from spectral shifts in the scattering data and compared to predictions by the Utsumi-Ichimaru theory for degenerate electron liquids.

Original languageEnglish
Article number042014
JournalJournal of Physics: Conference Series
Volume244
Issue numberPART 4
DOIs
Publication statusPublished - Jan 1 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Falk, K., Jephcoat, A. P., Crowley, B. J. B., Fäustlin, R. R., Fortmann, C., Khattak, F. Y., Kleppe, A. K., Riley, D., Toleikis, S., Wark, J., Wilhelm, H., & Gregori, G. (2010). Measurement of the dynamic response of compressed hydrogen by inelastic X-ray scattering. Journal of Physics: Conference Series, 244(PART 4), [042014]. https://doi.org/10.1088/1742-6596/244/4/042014