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Parametrization of the total photon mass attenuation coefficients for photon energies between 100 eV and 1000 MeV

A convenient way of generating mass attenuation coefficients for data analysis in various fields of X-ray spectroscopy is by means of semi-empirical schemes. However, the validity of most of the existing schemes is limited to relatively narrow energy intervals (typiclly 1-50 keV) and their accuracy is usually poor especially in regions near absorption edges. A few years ago, we use a new semi-empirical schemes that enabled us to fit, for the first time, photon data for all elements in the very wide energy range, i.e. between 0.1 and 1000 keV.

photon cross sections; attenuation; parametrization

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