Studies on mass attenuation coefficient, mass energy absorption coefficient, andkerma for Fe alloys at photon energies of 17.44 to 51.70 keV

Abstract

The mass attenuation coe cient ( m), the mass energy absorption coe cient ( en/ ), and kerma relativeto air were determined for some alloys, namely Fe0:5Cr0:5, Fe0:7Cr0:3, Fe0:8Cr0:2, Fe0:9Cr0:1, Fe0:2Ni0:8, Fe0:3Ni0:7,Fe0:5Ni0:5, Fe0:6Ni0:4, Fe0:7Ni0:3, and Fe0:8Ni0:2, at 17.44, 19.63, 22.10, 24.90, 32.06, 36.39, 37.26, 43.74, 44.48,50.38, and 51.70 photon energies by using an HPGe detector with a resolution of 182 eV at 5.9 keV. The experimentalresults of mwere compared with the theoretical results. The theoretical values of en/ were compared with thesemiempirical values. It was observed that kerma values relative to air values were di erent in Fe{Ce and Fe{Ni alloysdue to photoelectric cross sections depending on the atomic numbers of the material.