Abstract.
We present a novel scheme to measure sound velocity of shock-compressed iron of geophysical interest. The sound velocity of laser-irradiated iron foils was obtained with side-on X-ray radiograph technique from measured rarefaction wave velocity of shocked iron. Iron foils were irradiated with a two-stepped square laser pulse to reach Earth's core condition by double compression. The experimental parameters of temperature and pressure were very close to the Earth's core condition.
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Shigemori, K., Ichinose, D., Irifune, T. et al. Measurements of sound velocity of laser-irradiated iron foils relevant to Earth core condition. Eur. Phys. J. D 44, 301–305 (2007). https://doi.org/10.1140/epjd/e2007-00142-5
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DOI: https://doi.org/10.1140/epjd/e2007-00142-5