Abstract
The work develops the concept of shielding external radiation using composite materials that are a single condensed structure with incorporated specially configured impurities and (or) defects. Using the example of a one-dimensional model of an inhomogeneous power chain, the possibility of the existence of blocking and transparency effects with respect to external radiation, which arise already in the presence of binary impurities, which, in turn, act as the simplest models of composite systems, is shown. It is proposed to use the above property (isomorphic to the experimentally observed Ramsauer-Townsend effect) for the synthesis of composite materials in radiation protection technologies.