Abstract: The invention relates to a shielding wall (12) with a puncture-resistant shield for a container (1), said wall (12) comprising support means (20) as well as the following respective stacked elements (24, 26, 28, 30, 32): an outer plate (24); a first dampening layer (26); an intermediate plate (28); a second dampening layer (30); an inner plate (32). According to the invention, the intermediate plate (28) is positioned non-rigidly with respect to the support means (20). The invention likewise relates to a container (1) comprising at least one shielding wall (12) such as the one described above. Application to the field of transporting/storing nuclear materials.

Abstract: The invention relates to a shielding wall (12) with a puncture-resistant shield for a container (1), said wall (12) comprising support means (20) as well as the following respective stacked elements (24, 26, 28, 30, 32): an outer plate (24); a first dampening layer (26); an intermediate plate (28); a second dampening layer (30); an inner plate (32). According to the invention, the intermediate plate (28) is positioned non-rigidly with respect to the support means (20). The invention likewise relates to a container (1) comprising at least one shielding wall (12) such as the one described above. Application to the field of transporting/storing nuclear materials.

Abstract: A sealable metal multipurpose canister for confining irradiated nuclear fuel assemblies and a sealing means therefor. The canister includes a tubular or cylindrical body having a vertical major axis and vertical wall, a lower end closed by a welded base and an open and sealable upper end having a vertical inner wall section including a transverse shoulder extending over at least a portion of the vertical inner wall. The sealing means includes a first solid metal sealing disk supported by the transverse shoulder and having a peripheral portion cooperating sealingly with the vertical inner wall, a second solid metal sealing disk resting on and above the first sealing disk and having a peripheral portion cooperating sealingly with the vertical inner wall and a gripping means located inside the upper end above the second sealing disk, and acting on the first and second sealing disks to create a leaktight seal.

Abstract: A rack for storing or transporting nuclear fuel assemblies includes a plurality of adjacent prismatic cells having cell walls defining interior fuel assembly storage spaces. The cell walls are formed from a criss-crossed, ordered stack of elongated structural elements of constant cross section, disposed in successive layers and having a long dimension perpendicular to the axis of the cells. Neutrophage sections in tubular form and having a cross section corresponding to that of the cells are disposed against the cell walls within the nuclear fuel assembly storage spaces.