Ultrafast x-ray Thomson scattering of shock-compressed matter

Kritcher, Andrea L.; Neumayer, Paul; Castor, John; Doppner, Tilo; Falcone, Roger W.; Landen, Otto L.; Lee, Hae Ja; Lee, Richard W.; Morse, Edward C.; Ng, Andrew; Pollaine, Steve; Price, Dwight; Glenzer, Siegfried H.

doi:10.1126/science.1161466

Title: Ultrafast x-ray Thomson scattering of shock-compressed matter

Journal Article · Fri Oct 03 00:00:00 EDT 2008 · Science

DOI:https://doi.org/10.1126/science.1161466· OSTI ID:1334333

Kritcher, Andrea L. ^[1]; Neumayer, Paul ^[2]; Castor, John ^[2]; Doppner, Tilo ^[2]; Falcone, Roger W. ^[3]; Landen, Otto L. ^[2]; Lee, Hae Ja ^[3]; Lee, Richard W. ^[4]; Morse, Edward C. ^[3]; Ng, Andrew ^[2]; Pollaine, Steve ^[2]; Price, Dwight ^[2]; Glenzer, Siegfried H. ^[2]

Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Univ. of California, Berkeley, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States)

Spectrally resolved scattering of ultrafast K-a x-rays has provided experimental validation of the modeling of the compression and heating of shocked matter. The elastic scattering component has characterized the evolution and coalescence of two shocks launched by a nanosecond laser pulse into lithium hydride with an unprecedented temporal resolution of 10 picoseconds. At shock coalescence, we observed rapid heating to temperatures of 25,000 kelvin when the scattering spectra show the collective plasmon oscillations that indicate the transition to the dense metallic plasma state. Furthermore, the plasmon frequency determines the material compression, which is found to be a factor of 3, thereby reaching conditions in the laboratory relevant for studying the physics of planetary formation.

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Research Organization:: Univ. of California, Berkeley, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG52-06NA26212

OSTI ID:: 1334333

Journal Information:: Science, Vol. 322, Issue 5898; ISSN 0036-8075

Publisher:: AAAS

Country of Publication:: United States

Language:: English

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