Ultrafast X-ray Thomson Scattering of Shock-Compressed Matter-Reference-Cited by-同舟云学术

Ultrafast X-ray Thomson Scattering of Shock-Compressed Matter

Published:2008-10-03 Issue:5898 Volume:322 Page:69-71
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Kritcher Andrea L.¹²³,Neumayer Paul¹²³,Castor John¹²³,Döppner Tilo¹²³,Falcone Roger W.¹²³,Landen Otto L.¹²³,Lee Hae Ja¹²³,Lee Richard W.¹²³,Morse Edward C.¹²³,Ng Andrew¹²³,Pollaine Steve¹²³,Price Dwight¹²³,Glenzer Siegfried H.¹²³

Affiliation:

1. Nuclear Engineering Department, University of California Berkeley, Berkeley, CA 94709, USA.

2. Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, CA 94551, USA.

3. Physics Department, University of California Berkeley, Berkeley, CA 94709, USA.

Abstract

Spectrally resolved scattering of ultrafast K-α 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. 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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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