ADVANCES IN NATURAL URANIUM-GRAPHITE NUCLEAR REACTORS

The advances made in the technology of natural uraniumgraphite reactors are summarized by a study of the main characteristics of these systems. The problems presented by the development of these reactor systems (neutron, thermal, technological, and fuel stability to high temperature and irradiation are reviewed. The solutions found to some of these problems are indicated, and possible future development of the natural uranium-graphite system is discussed. (J.S.R.)