| 摘要 |
The present invention relates to a cask that includes: a container body provided to store high radioactive materials; a shielding lead attached to the container body to block the external leakage of the high radioactive materials; and a leakage blocking means of the radioactive materials mounted on the container body or the shielding lead, operating by the internal pressure of the container body when the shielding lead is damaged and open, and provided to block the leakage of the high radioactive materials. According to the present invention the cask can block leaking of the high radioactive materials by the cask internal pressure even when the shielding lead of the cask is damaged and open. |
