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System for the storage of radioactive material in rock

Image Number 8 for United States Patent #4192629.

An underground repository for the storage of radioactive material, particularly spent fuel from nuclear reactors and radioactive wastes produced by reprocessing spent nuclear fuel. The repository comprises a hollow body of solid material for accommodating the radioactive material. The hollow body is surrounded by a shell or barrier of clay. The hollow body and the clay barrier are located in a cavity in rock, the clay filling the space between the hollow body and the inside of the rock cavity.

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