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A software to determine atomic spatial distribution from normal incidence x-ray standing wave data


Torricelli is a software designed for the analysis of x-ray standing wave (XSW) data. While the XSW technique has been employed for several decades, to our knowledge no free, open source, user-friendly and well-documented program for conducting XSW data analysis exists to date. Torricelli is therefore an attempt to fill this gap. The spatial distribution of atomic species with respect to the atomic planes of a single crystal can be described by two parameters, the coherent position Pc and the coherent fraction Fc. The main target of Torricelli is to determine this pair of parameters in the most accurate way, and also provide the corresponding statistical errors.