Determination of the imaginary component of atomic scattering factor for x-ray for nickel element for the energy  range of 8.048-19.609 KeV

Hasan Ali, Dr.Muhsin

doi:10.32894/kujss.2017.131327

Determination of the imaginary component of atomic scattering factor for x-ray for nickel element for the energy range of 8.048-19.609 KeV

Author

Dr.Muhsin Hasan Ali

10.32894/kujss.2017.131327

Abstract

In this paper x-ray mass attenuation coefficients of nickel were measured with precision between 0.2% and 0.5% for four characteristic wavelengths: copper and molybdenum K lines. The mass photoelectric absorption coefficients were determined by subtracting the calculated Rayleigh scattering from the total scattering and the values of measured attenuation coefficients. The values of the imaginary component of atomic scattering factor for x-ray in nickel were determined from the difference between the values of measured attenuation coefficients and theoretical calculations, it is shown that In the low energy at ω≪ω_e, and the high energy at ω≫ω_e, the imaginary component approximately is zero, and the electrons are so tightly bound to the atom. In the region ω ~ ω_e where the imaginary component of the scattering is dominate and the electron become highly absorbing. There was good agreement between the values of the imaginary component of atomic scattering factor has been found and the values has been calculated by using various model

Keywords

atomic scattering factor

the imaginary component of atomic scattering factor

coherent scattering