CANISTER, CONCRETE-MADE STORAGE CONTAINER PROVIDED WITH IT AND PRODUCTION METHOD FOR THE CANISTER

摘要

PROBLEM TO BE SOLVED: To provide a canister capable of storing radioactive materials safely, stably and for a long period, a concrete-made storage container provided with it and production method for the canister. SOLUTION: A container body of a concrete-made cask has a column shape container part and in this container part, a canister sealed with radioactive material is contained. The cansiter has a metal-made sealed container and the surrounding wall 17 of a neutron shield layer 40 of the sealed container is formed with a plate material 42 covered with corrosion resistive matal. This plate material is made by sealing powder of neutron shield material in a hollow container and formed by corrosion resistive metal plate and rolling the hollow container.