Observations of continuum depression in warm dense matter with x-ray Thomson scattering.

Observations of continuum depression in warm dense matter with x-ray Thomson scattering.

Detailed measurements of the electron densities, temperatures, and ionization states of compressed CH shells approaching pressures of 50 Mbar are achieved with spectrally resolved x-ray scattering. Laser-produced 9 keV x-rays probe the plasma during the transient state of three-shock coalescence. Hi...

Täydet tiedot

Bibliografiset tiedot
Päätekijät: Fletcher, L, Kritcher, A, Pak, A, Ma, T, Döppner, T, Fortmann, C, Divol, L, Jones, O, Landen, O, Scott, H, Vorberger, J, Chapman, D, Gericke, DO, Mattern, B, Seidler, G, Gregori, G, Falcone, R, Glenzer, S
Aineistotyyppi: Journal article
Kieli:English
Julkaistu: American Physical Society 2014
Kuvaus
Yhteenveto:Detailed measurements of the electron densities, temperatures, and ionization states of compressed CH shells approaching pressures of 50 Mbar are achieved with spectrally resolved x-ray scattering. Laser-produced 9 keV x-rays probe the plasma during the transient state of three-shock coalescence. High signal-to-noise x-ray scattering spectra show direct evidence of continuum depression in highly degenerate warm dense matter states with electron densities ne>1024  cm-3. The measured densities and temperatures agree well with radiation-hydrodynamic modeling when accounting for continuum lowering in calculations that employ detailed configuration accounting.

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