METALLIC BERYLLIUM PEBBLES FOR NUCLEAR FUSION REACTORS

摘要

Metallic beryllium pebbles for nuclear fusion reactors, wherein the grain sizes are adjusted to range from 0.1 to 1.8 mm and the average grain size is adjusted to lie from 0.05 to 0.6 mm, making it possible to strikingly increase tritium radioactivity. This makes it possible to enhance the efficiency for recovering tritium that serves as a fuel for nuclear fusion reactors while effectively suppressing the occurrence of swelling. Thus, it is allowed to advantageously avoid a reduction in the resistance against the external stress and in the heat conductivity of the metallic beryllium pebbles used as a material of the nuclear fusion reactors.