| 1 | X-ray absorption spectroscopy study of energy transport in foil targets heated by petawatt laser pulses显示文摘X-ray absorption spectroscopy is proposed as a method for studying the heating of solid-density matter excited by secondary X-ray radiation from a relativistic laser-produced plasma. The method was developed and applied to experiments involving thin silicon foils irradiated by 0.5–1.5 ps duration ultrahigh contrast laser pulses at intensities between 0.5 × 10^(20) and 2.5 × 10^(20) W∕cm^2. The electron temperature of the material at the rear side of the target is estimated to be in the range of 140–300 eV. The diagnostic approach enables the study of warm dense matter states with low self-emissivity. | I. Y. SKOBELEV S. N. RYAZANTSEV D. D. ARICH P. S. BRATCHENKO A. Y. FAENOV T. A. PIKUZ P. DUREY L. DOEHL D. FARLEY C. D. BAIRD K. L. LANCASTER C. D. MURPHY N. BOOTH C. SPINDLOE P. MCKENNA S. B. HANSEN J. COLGAN R. KODAMA N. WOOLSEY S. A. PIKUZ | 2018 | Photonics Research2018，6，4： | 0 |
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