Dry cask storage is a method of storing high-level radioactive waste, such as spent nuclear fuel that has already been cooled in a spent fuel pool for at least one year and often as many as ten. Casks
Dry cask storage area
Multipurpose Constor Storage, Transport, and Disposal Cask
A nuclear flask is a shipping container that is used to transport active nuclear materials between nuclear power station and spent fuel reprocessing facilities.
Wagon with transport cabin containing a nuclear waste flask, at Bristol
A typical SNF shipping cask mounted on a railroad car
Nuclear flask train near the Sellafield nuclear spent fuel reprocessing facility in the UK
1980s Old Dalby Test Track test against a flask in its most vulnerable position. Video footage is available on various hosting services.