Direct density measurement of shock-compressed iron using hard x rays generated by a short laser pulse

E Brambrink, H G Wei, B Barbrel, P Audebert, A Benuzzi-Mounaix, T Boehly, T Endo, C D Gregory, T Kimura, R Kodama, N Ozaki, H-S Park, M Koenig

Research output: Contribution to journalArticlepeer-review

Abstract

We present the application of short-pulse laser-driven hard x rays (>40 keV) for the direct density measurement of iron compressed by a laser-driven shock. By using an on-shot calibration of the spectral absorption, we are able to obtain line densities with 5%-10% precision, although the x-ray source is not monochromatic. We also discuss possibilities for increasing the precision, which would be an improvement for equation of state measurements.
Original languageEnglish
Pages (from-to)056407
JournalPhysical Review E - Statistical, Nonlinear and Soft Matter Physics
Volume80
Issue number5 Pt 2
Publication statusPublished - 2009

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