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https://www.osti.gov/biblio/4027625 CALANDRIA TYPE SODIUM GRAPHITE REACTOR (Patent) | OSTI.GOV A sodium graphite power reactor in which the unclad graphite moderator and fuel elements are contained within a core tank is described. The core tank is... sodium graphite reactorcalandriatypepatentosti https://www.sciencenews.org/archive/sodium-graphite-reactor-generate-electricity Sodium Graphite Reactor to Generate Electricity | Science News sodium graphite reactorgenerate electricitysciencenews