Direct density measurement of shock-compressed iron using hard x rays generated by a short laser pulse
Direct density measurement of shock-compressed iron using hard x rays generated by a short laser pulse
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DOI：
10.1103/physreve.80.056407
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发表时间：
2009-11-01
影响因子：
2.4
通讯作者：
Koenig, M.
中科院分区：
文献类型：
--
作者：
Brambrink, E.;Wei, H. G.;Koenig, M.
我们提出了应用短脉冲激光驱动的硬x射线（>40 keV）的直接密度测量的铁由激光驱动的冲击压缩。通过使用光谱吸收的即时校准，我们能够以5%-10%的精度获得线密度，尽管X射线源不是单色的。我们还讨论了提高精度的可能性，这将是一个改进的状态方程测量。
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.