منابع مشابه
Thomson Scattering from Warm Dense Matter
The dynamic structure function for Thomson scattering of x-rays by warm dense matter is evaluated within the average-atom framework. Contributions to the dynamic-structure function from elastic scattering by ions and from inelastic scattering by free and bound electrons are considered. Each contribution is evaluated using input parameters obtained from the averageatom model. Bound-state feature...
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Detailed measurements of the electron densities, temperatures, and ionization states of compressed CH shells approaching pressures of 50 Mbar are achieved with spectrally resolved x-ray scattering. Laser-produced 9 keV x-rays probe the plasma during the transient state of three-shock coalescence. High signal-to-noise x-ray scattering spectra show direct evidence of continuum depression in highl...
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We have studied the dynamics of warm dense Li with near-elastic x-ray scattering. Li foils were heated and compressed using shock waves driven by 4-ns-long laser pulses. Separate 1-ns-long laser pulses were used to generate a bright source of 2.96 keV Cl Ly- alpha photons for x-ray scattering, and the spectrum of scattered photons was recorded at a scattering angle of 120 degrees using a highly...
متن کاملThomson Scattering in Warm Dense Matter
The scattering of photons in plasmas is an important diagnostic tool. The region of warm dense matter can be probed by x-ray Thomson scattering. The scattering cross section is related to the dynamic structure factor S(k, ω). We focus on the contribution of free electrons to the dielectric function which is calculated in the Born–Mermin approximation. The inclusion of collisions modifies the dy...
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1s2p resonant inelastic X-ray scattering (RIXS) spectroscopy has been measured for a series of iron oxides, including octahedral and tetrahedral Fe(II) and Fe(III) systems. Their spectral shapes have been analyzed and explained using crystal-field multiplet simulations. The RIXS planes and the K-edge and L-edge X-ray absorption spectra related to these RIXS planes will be discussed with respect...
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ژورنال
عنوان ژورنال: High Energy Density Physics
سال: 2013
ISSN: 1574-1818
DOI: 10.1016/j.hedp.2013.05.015