This is what was done in constructing the Oak Ridge calutrons.
Program I ran from November 1942 to November 1943 and Program II, necessitated by the expansion of the number of calutrons authorized by Groves in September, 1943, ran from late November 1943 to August 1944.
Eventually, the Y-12 calutrons would be fed with uranium enriched to 7% [.
The Alpha calutrons had been shut down earlier as the gaseous diffusion plant's ability to enrich uranium exceeded that of the Alphas and hence it could provide feed material directly to Beta units.
1987 -- Lab-scale quantities of LEU are produced by calutrons, now referred to as "Baghdadtrons.
More significant, neither Russia nor America believed that any nation would pursue "obsolete" calutron technology in a bomb program.
Scientists use it in gas-centrifuge and other enrichment processes and as a purging agent to remove industrial residues from centrifuges and calutron parts.
Many of the bulky calutron pole magnets used to enrich uranium were produced in Austria by a state-owned firm that shipped the finished products to Iraq, half by truck through Turkey and the rest through Hamburg.
In 1991, in one of the first, and only, instances of finding prohibited equipment, inspectors came upon some massive calutrons
used for enriching uranium at an Iraqi military base.