Simulation models to obtain X-ray spectra using the Compton scattering technique

Quality control of X-ray tubes for medical radiodiagnostic services is very important. Therefore, it is convenient to develop new procedures to characterise the X-ray primary beam, obtaining an accurate assessment of the actual photon spectrum. The Compton scattering technique is very useful to determine X-ray spectra, avoiding the pile-up effect in the detector, as usually a large room is not available to apply other techniques. The Compton scattering procedure has been simulated using the Monte Carlo method. Several simplified models have been developed for the scattering assembly, considering the X-ray focus as a point source.