Abstract: A storage device for transporting and/or storing nuclear fuel assemblies is intended to be accommodated in the cavity of a package for transporting and/or storing nuclear fuel assemblies, and includes adjacent recesses. The device includes a plurality of transverse structures spaced apart by spacers, and sleeves each passing through an opening of at least one of the transverse structures, each sleeve being made from flat bars. In at least one transverse plane of the device passing through the sleeves, at least one of these sleeves has an inner recess-delimiting surface formed in part by: an inner surface of a first flat bar made with boron; and an inner surface of a second flat bar made without boron.

Abstract: A storage device for storing and/or transporting nuclear fuel assemblies, comprising a number N of adjacent recesses, some of which are created by means of notched; intersecting and stacked plates, and, in at least one transverse plane, at least one of the adjacent recesses has an inner surface which defines the recess and is formed in part by: a first surface of a first notched plate made with boron; and a first surface of a second notched plate made without boron.

Abstract: A package (100) comprising storage packaging (1) as well as a confinement canister (3) for irradiated fuel, the packaging comprising a lateral body (2) which extends around a longitudinal axis (12) of the packaging and which includes an internal surface (22) which delimits a cavity for housing the canister (3), the packaging furthermore comprising at least one assembly (15) forming a guide rail for the canister in the cavity, mounted on the lateral body (2) and protruding at least partly into the housing cavity (4). According to the invention, the assembly forming a guide rail (15) includes an impact shock absorbing element (28) designed to absorb the shock, by plastic deformation, of a lateral impact between the packaging (1) and the confinement canister (3).

Abstract: A package (100) comprising storage packaging (1) as well as a confinement canister (3) for irradiated fuel, the packaging comprising a lateral body (2) which extends around a longitudinal axis (12) of the packaging and which includes an internal surface (22) which delimits a cavity for housing the canister (3), the packaging furthermore comprising at least one assembly (15) forming a guide rail for the canister in the cavity, mounted on the lateral body (2) and protruding at least partly into the housing cavity (4). According to the invention, the assembly forming a guide rail (15) includes an impact shock absorbing element (28) designed to absorb the shock, by plastic deformation, of a lateral impact between the packaging (1) and the confinement canister (3).