TRANSPORT OR STORAGE METAL CASK FOR SPENT NUCLEAR FUEL

摘要

PURPOSE: An after usage nuclear fuel transportation or a metal case for the storage are provided to arrange a neutron shielding material to the front and rear side of a heat transfer member, thereby preventing the external leakage of the neutron. CONSTITUTION: A cask main body (110) comprises a cavity. The cavity accommodates a basket inside. An external casing (120) is separated from the outside of the cask main body in the predetermined interval. A neutron shielding material (130) is equipped between the cask main body and the external casing. A heat transfer member is connected between the cask main body and the external casing.