Experience With the Use of Metallic Gaskets

In the Federal Republic of Germany a possible path for intermediate storage of spent fuel elements is the use of transport and storage casks. Intermediate storage of spent fuel in casks is approved for a period not exceeding 40 years. Since this concept for intermediate storage in transport and storage casks technically envisages a zero activity release a significant role is allocated to the cask orif ices and their leak-tightness during the storage period.