Photon energy absorption parameters for composite mixtures with boron compounds

► An experimental investigation of photon energy absorption parameters for 12 composite mixture samples with boron compounds. ► Calculations of total mass attenuation coefficients and effective atomic numbers for the energy up to 100 keV. ► Radiation shielding properties varied with concentration of composite materials. ► In general, the mixture with K2B4O7 4H2O is more absorber than with H3BO3.