21. The United States, meanwhile, is re-emphasizing centrifuges over gaseous diffusion , a more cumbersome enrichment technology. 22. The plant uses gaseous diffusion to enrich uranium for use as fuel in nuclear reactors. 23. He headed the group located at Columbia University that developed isotope separation using gaseous diffusion . 24. USEC had gaseous diffusion plants at Piketon, Ohio near Piketon and consolidated operations in Paducah, Kentucky. 25. By the end of 1943, Urey had over 700 people working for him on gaseous diffusion . 26. One is that they use the oldest and most energy-intensive technology to enrich uranium, gaseous diffusion . 27. In fact, gas centrifuges using uranium hexafluoride have largely replaced gaseous diffusion technology for uranium enrichment. 28. The gaseous diffusion plant covers of a site. 29. Because of this, gaseous diffusion is the most expensive method currently used for producing enriched uranium. 30. Power for the Paducah gaseous diffusion plant came from the Tennessee Valley Authority ( TVA ).
