Microfocus x-ray spectra measurement

The applied equipment, the experimental procedures, and the results obtained in the experimental measurement of x-ray spectra from a microfocus x-ray unit are described. The measured spectra of x rays passing through different absorbers are compared to calculated spectra, based on calculation of the linear absorption coefficient, μ, and the spectrum of the incident radiation. The nice fit between the measured and the calculated spectra testifies to the applicability of the presented method for determination of the linear attenuation coefficient. Such calculations form the basis for a more accurate experimental determination of the contrast reducing build-up factor in industrial radiography.