GAMMA-QUANTA RADIATION-FIELD IN A LAMINATED SYSTEM

A method is presented for calculating the effective gamma-quanta spect ra for conditions of parallel-plate barrier geometry of irradiation fr om an isotropic Co-60 source, when multiple Compton scattering plays t he most important part in the process of propagation of gamma-radiatio n. It is a version of the successive collision method, in which an act ual gamma-quanta spectrum is expressed as the infinite sum of the part ial spectra of gamma-quanta that undergo a certain number of Compton s catterings. The convergence of this series of partial spectra is analy tically proven for a real range of the energy changes.