On the Possibility of Using Model Experiments to Study Shielding Problems

Abstract

The possible use of models to study gamma radiation penetration of complex shielding configurations is discussed with reference to the limitations. An iron model with 2 to 3 Mev gamma rays may serve as a model of the relative intensities in thick concrete shields. Experiments were carried out in which the penetration of 7-Mev gamma rays through a concrete shield was compared with that of 2.62Mev gammas through an iron model constructed on a 1 : 5.8 scale. Various shield configurations were studied, including shields with straight holes and holes with bends. The results show excellent correspondence between the spectra. (D.L.C.)