[en] An outline of the fuel management calculations by COSMOS is stated. The COSMOS database, datablocks and nests, labels are exposed

[en] This databank is a large set of files controlled by a management suite of COBOL data handling programs. The data, data dictionary and data directory are stored on exchangeable disc packs in the Random Access Index Sequential mode on an ICL 4/72 computer. It is a databank for the UKAEA Prototype Fast Reactor which stores data pertaining to the entire composition of the in-core components, concentrating particularly upon the fissile fuelled driver assemblies and the many experimental assemblies of both fuel pin and cladding/structural materials. At this time, the reactor is not yet operating at full power. This should be achieved in 1977 and the databank will then contain reactor operating history and reactor physics data, and also post-irradiation examination data for the discharged units. The databank will then represent a complete data compilation of in-reactor performance of fully documented materials. The current size of the databank is of the order of 100 megabytes and is expected to increase to approximately 200 megabytes over the next 2 years. The ICL 4/72 computer will be phased out during 1977 and replaced by an ICL 2980 computer. The Databank Management System adopted by ICL is IDMS (Integrated Database Management System), and it will be available on the 2980 computer. Initially, the databank will be moved on to the 2980 in its current form, but IDMS potential will be probed by moving selected sub-sets of the databank into this management system