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Preparative scale mass spectrometry: A brief history of the calutron

J Mass Spectrom. 2020-08-01; 
Alfred L Yergey, A Karl Yergey
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摘要

Calutrons were developed in the laboratory of E. O. Lawrence at the University of California at Berkeley. They were a modification of the cyclotrons he had invented and used in his Nobel Prize-winning investigations of the atomic nucleus. At the time their construction was undertaken, calutrons represented the only certain means of preparing enriched uranium isotopes for the construction of a fission bomb. The effort was successful enough that every atom of the 42 kg of U used in the first uranium bomb had passed through at least one stage of calutron separation. At peak production, the first stage separators, α tanks, yielded an aggregate 258-g/day U enriched to about 10 at. % from its natural abundance lev... More

關(guān)鍵詞

calutron, history of MS, preparative scale, special issue, tribute to Alfred Yergey
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