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We have developed a setup for low angle energy dispersive X-ray scattering measurement employing two key components: i) a Silicon Drift Detector (SDD) which can provide energy resolution close to Fano limit at fast processing times and ii) an X-ray collimator based on parallel polycapillary technology that allows angular resolution in the milli-radiant range. Combining these features an instrument...
A complete three-dimensional simulation tool for X-ray scatter imaging experiments was developed. This tool is able to compute the interaction of the incoming X-ray beam with a 3D sample having defined X-ray cross-sections and to record the radiation detected by the collimation-detection system. The physical model of the interaction includes X-ray absorption, and elastic as well as inelastic scattering...
X-ray Scatter Imaging (XSI) is a technique based on exploiting the capability of coherently scattered X-rays to probe the structure of matter at molecular level which can produce images with higher contrast and specificity than conventional transmission imaging. A novel XSI system was developed, featuring improved spatial resolution and ability to exploit photon energy information. To this purpose...
The full exploitation of polycapillary X-ray lenses in X-ray imaging systems - e.g. based on X-ray fluorescence, X-ray diffraction, X-ray scattering - is strictly related to the critical angle for total X-ray reflection. This means that the output beam is strongly dependent on both the spatial and spectral properties of the incoming beam. Therefore, X-ray polycapillary optics need to tailor their...
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