Ultrafast x-ray Thomson scattering of shock-compressed matter

被引：167

作者：

Kritcher, Andrea L. ^{[1
,2
]}

Neumayer, Paul ^{[2
]}

Castor, John ^{[2
]}

Doppner, Tilo ^{[2
]}

Falcone, Roger W. ^{[3
]}

Landen, Otto L. ^{[2
]}

Lee, Hae Ja ^{[3
]}

Lee, Richard W. ^{[2
,3
]}

Morse, Edward C. ^{[1
]}

Ng, Andrew ^{[2
]}

Pollaine, Steve ^{[2
]}

Price, Dwight ^{[2
]}

Glenzer, Siegfried H. ^{[2
]}

机构：

[1] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94709 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94709 USA

来源：

SCIENCE | 2008年 / 322卷 / 5898期

关键词：

D O I：

10.1126/science.1161466

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Spectrally resolved scattering of ultrafast K-alpha 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.

引用

页码：69 / 71

页数：3

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