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The aim of the present study is to determine effective atomic numbers (Zeff ) of FexCu1−x binary ferroalloys using scattering of 59.54 keV gamma photons at 130◦ (x = 4.36Å −1 ) scattering angle. For this purpose, the Rayleigh (R) and Compton (C) scattering intensities for the given alloys were measured using a monoenergetic beam of 59.54 keV gamma rays and the Rayleigh-to-Compton scattering ratio R/Cwas determined. Then the Zeff values of these alloys were determined by interpolating the R/C of the material using the R/C data of adjacent elements in between the R/C of the alloys. For comparison, Zeff s of alloys were also calculated using direct and interpolation methods in term of scattering R/C and attenuation of gamma photons. Good agreement in relative differences between Zeff s (experimental and theoretical) was found (maximum of ≤3.3% for total att.-direct method) for the chosen alloys and the Rayleigh-to-Compton scattering ratio was shown to be a complementary approach to determine the effective atomic number of binary ferroalloys. In addition, a polynomial equation between the experimental R/C values and the mass attenuation coefficients of alloys was developed to estimate the mass attenuation coefficient of different materials.

turkish journal of physics

Determination of the effective atomic numbers of Fe$_{x}$Cu$_{1-x} $binary ferroalloys using a nondestructive technique: Rayleigh-to-Compton scattering ratio