Investigations of the regularities in the tranport of 137Cs, 60Co, and 24Na photons in iron, lead, bismuth, tungsten, and uranium

The methods and results of benchmark experiments and calculations of the transport of ^sup 137^Cs, ^sup 60^Co, and ^sup 22^Na photons in iron, lead, bismuth, tungsten, and uranium are described. The results are photon spectra which served as the basis for determining the photon absorption coefficients in a wide geometry and the accumulation factors. A comprehensive analysis of the experimental and computational results revealed the regularities in the differences between the experimental and computational photon absorption coefficients in a wide geometry.[PUBLICATION ABSTRACT]