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X-ray atomic resolution holography is a new method for direct evaluation of three-dimensional electron density distribution in solids. The practical implementation of the multiple-energy technique on a synchrotron radiation source as well as image reconstruction from the experimental data are described. Holograms at several different energies were processed(More)
Study of two Paleo-Eskimo skulls found in a necropolis on St-Lawrence Island (Alaska), including radiography and histological examination, revealed the following features. One of the skulls showed a perforation with remodelled borders, considered to be due to trauma and secondary infection. The other showed areas of osteolysis characteristic of a malignant(More)
An analyzer-based X-ray phase contrast imaging (ABI) system with an asymmetrical crystal set-up was mounted at Elettra's SYRMEP beamline. It was the first time that this set-up was implemented at Elettra. Advantages and disadvantages of such a set-up were exploited with quantitative and qualitative studies. For quantitative studies a simple hollow tube and(More)
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