DATA SETS coeff*.dat Energies and coefficients of Biggs & Lighthill photoelectric cross section parameterisation nrows.dat Number of energy intervals for each Z in the parameterisation ratio.dat Z/A ratio UNITS Lower energy bounds are in keV. Photoelectric cross-section coefficients are in cm^2 keV^(1-4)/g. CREDITS The values in this database are those originally published in the SAND-0070 report. REFERENCES F. Biggs andR. Lighthill, 'Analytical Approximation for X-ray Cross Sections III', SAND-0070 Report, 1988.