Bin-to-bin spectrum reconstruction method for analyzing ?-rays passing through a certain thickness of aluminum

Abstract

Energy distribution of Y-rays emitted from standard sources, passing through various thicknesses of Al medium, were obtained by using 5.08cm x 5.08cm NaI(Tl) detector. The full energy peak and the total efficiency, photopeak/total (P/T) ratios and energy resolution of NaI(Tl) detector were measured using standard Y-ray sources. Detector response functions (DRFs) were obtained in every energy value of Y-ray rays by means of P/T ratios and energy resolutions. Y-rays incoming to the slice-shape geometry medium, can take all the energy values between 0 and the maximum energy. The energy range is divided into n lower energy region. DRFs are obtained for the energy values correspond to the midpoint of each energy range. In this way, the response matrix is developed. A bin to bin unfolding method is applied to the Y-ray spectra and the results are compared with the spectra obtained by the Monte Carlo method. © 2017 Author(s).