The database consists of six ASCII files which contain all the necessary data for making detailed computations of the prevailing interactions (photoelectric effect, Rayleigh scattering, and Compton scattering) in X-ray photon transport for a wide energy range, from 1 keV to 1 Mev, and for all the elements in the periodic table, from Hydrogen (Z=1) to Uranium (Z=92). The files in this database are the following:

ASCII filename contained data file format PARAM.ASC basic parameters like density, atomic weight, and pre-computed transformation coefficients from barn/atom to cm2/g format MCMASTER.ASC checked and corrected coefficients from Ref. [1] for generating atomic mass attenuation coefficients for photoelectric effect, Rayleigh scattering, Compton scattering, and total. format EDGES.ASC photoelectric subshell data like absorption edge energy and jump, fluorescence yield, and the radiationless Coster-Kronig transition probability format LINES.ASC X-ray fluorescence line data like the subshell where the line is originated, the line denomination according to the Siegbahn nomenclature, the line fraction into the spectral series, the natural width, and the energy of the line format CROMER.ASC a group of nine coefficients by element, which allow the computation of the atomic form factors for the angular distribution of Rayleigh scattering and the scattering functions for the angular distribution of Compton scattering  format PACKPROF.ASC a hughe file, inspired in the table of Biggs, Mendelsohn and Mann [2], which contains all the necessary data for the computation of the Compton profiles format

As these files are in ASCII format, they can be easily modified in case of need. Each file is accompanied with a corresponding documentation file (*.DOC), containing last minute information about the data contained.

 REFERENCES

1. W.H. Mc Master, N. Kerr del Grande, J.H. Mallett and J.H. Hubbell, Compilation of X-ray cross-sections, Lawrence Livermore National Laboratory Report  UCRL-50174, Sect. 2, Rev. 1 (1969).
2. F. Biggs, L.B. Mendelsohn and J.B. Mann. Hartree-Fock Compton profiles for the elements. Atomic Data and Nuclear Data Tables 16, 210-309 (1975).

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