Abstract
In this study, effective atomic numbers of composite materials, polyethylene and coal have been estimated by using Compton scattering of 662keV 137 gamma rays emitted from Cs source. In order to estimate the effective atomic numbers, the Klein-Nishina theoretical cross sections were obtained from 0 0 50 to 100 angles. Then, the scattering cross sections of the samples were experimentally determined. By using this method, effective atomic numbers of polyethylene and coal are obtained as 2.25 and 2.39 respectively.
Keyword(s)
Compton, Scattering, Effective Atomic Number, Polyethylene, Coal