Ampoule for spent fuel assembly (versions)

FIELD: physics, atomic power. SUBSTANCE: invention relates to atomic power engineering, particularly to handling spent nuclear fuel and more specifically to an ampoule holding bundles of fuel elements of a spent fuel assembly of a RBMK-1000 reactor, for subsequent placement and transportation in a shipping packaging set to a dry storage facility. The ampoule has a cylindrical body with a mouth, a bottom and a cover which is fixed in the mouth by different locking devices. The locking devices have pockets made at the mouth. The cover or locking rings mounted on the cover and capable of rotating have protrusions which can be fitted into the pockets at the mouth upon vertical movement and subsequent rotation of the cover or locking ring. EFFECT: rigid fixation of the position of the cover relative to the body of the ampoule and shorter time for loading bundles of fuel elements into the ampoule. 8 cl, 8 dwg