Current status of spent nuclear fuel integrity evaluation R and D in the major countries

The cask or canister has been concerned for containment safety in the last decades, but these systems have developed very robustly by the commercial cask vendors. By the way, SNF itself faces another challenges of integrity evaluation for the extended storage time beyond its initial licensed period. This article is willing to briefly introduce what is current situation in the major SNF dry storage countries for this and where should our country take a step towards. As SNF Dry Storage is getting longer than the initial 'interim' purpose, the importance of SNF integrity evaluation work is getting higher, especially for the extended storage era.