| 11. | The two gaseous diffusion plants blend uranium into the concentrations needed by power plants.
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| 12. | The former gaseous diffusion plant covers of the site.
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| 13. | By the end of the summer in 1940, Peirels preferred gaseous diffusion to thermal diffusion.
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| 14. | The gaseous diffusion process remained more encouraging, although it too had technical obstacles to overcome.
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| 15. | AREVA replaced its Georges Besse gaseous diffusion plant with the Georges Besse II centrifuge plant.
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| 16. | Enrichment is achieved either by gaseous diffusion or centrifuge.
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| 17. | Over the next three years, Libby worked on the gaseous diffusion process for uranium enrichment.
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| 18. | The SAM Laboratory had 700 people working on gaseous diffusion and Kellex had about 900.
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| 19. | Gaseous diffusion had been used to separate isotopes before.
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| 20. | Richardson said to the applause of several hundred workers at the Portsmouth Gaseous Diffusion Plant.
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