Preparations for decommissioning the MR research reactor at the Russian Science Center Kurchatov institute

The preparations of the MP research loop reactor for decommissioning are described. After final shutdown in 1993, a system of measures to ensure the required level of nuclear and radiation safety for the complex was implemented and a concept and fundamental program for decommissioning the reactor were developed. The variant DECON was taken as the base variant for decommissioning — immediate staged disassembly of structures and equipment, including disassembly of in-vessel structures of the RFT predecessor reactor which are stored in a central room of the reactor. The main results of the work performed to normalize the radiation conditions in the central room and to examine the safety-and-control system repository in this room are presented.