Naval Reactors History Database (nrhdb)
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1Title:  Seed fuel assembly being removed from reactor vessel by an extraction crane Add
 Summary:  A highly-enriched Uranium fuel element is removed from the Shippingport reactor core in 1960. Alvin Radkowsky, the chief physicist for Naval Reactors, "suggested the possibility of using a 'seed' of highly-enriched uranium surrounded by a much larger 'blanket' of natural uranium" (244). This core design approach offered several advantages, including ease of refueling (by replacing the seed elements), and was employed in the Shippingport reactor cores during the plant's operations, including the Light-Water Breeder Reactor (LWBR) core that was used from 1977 to 1982. 
 Reference:  Hewlett, Richard G., and Francis Duncan. Nuclear Navy, 1946-1962. Chicago: University of Chicago Press, 1974, pages 242-246. 
 Date:  07 January 1960 
 Subject(s):  Shippingport Atomic Power Station | Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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