Data base for analysis of RA-1 reactor decommissioning

Full text: The RA-1 'Enrico Fermi' reactor is located at the Constituyentes Atomic Centre near Buenos Aires city. It reached criticality for the first time on January 17th, 1958. During 45 years, major modifications were introduced. The Decommissioning of RA-1 is not foreseen in a near future, but nevertheless CNEA (legally responsible of Dismantling and Decommissioning of all relevant nuclear facilities in Argentina) has started Dismantling and Decommissioning planning activities. As a part of these activities, a historical information data base of the RA-1 reactor was performed. This report contains a set of global and specific data of the RA-1 Research Reactor prepared as a data base for a future decommissioning analysis. It describes the whole installation, and specially the core, fuel type, present configuration, shielding and the operation devices. An exhaustive listing of materials and components located in the Reactor building is given. It also reconstructs the reactor operation history based on the available information. (author)