Family of casks for transport of LWR spent fuel

Heat dissipation, closure system, and internal arrangements are given for TN 12/1, TN 12/2, TN 13/2, and TN 17/2 cask models. These casks have the following advantages: a large payload, based upon the rail and maritime modes of transport and only limited by the crane capacities at operation sites; a high operational reliability, backed by the experience which has been gained for 15 years by Transnucleaire with casks of similar operational features; and the standardization of the small components and tools which results in common operation procedures for the different models and facilitates the procurement of spare parts. 6 figures, 1 table