AP EXPLAINS: A look at the science of uranium enrichment as tensions rise between the United States and Iran, MalcolmRitter writes.
Corrects headline; graphic shows the same centrifuge technology used to reach 3.6 percent can be used to drive enrichment to 90 percent.;
Enriching a supply of uranium means boosting its concentration of the type of uranium that can power a nuclear reaction. That type, or isotope, is called U-235. Enrichment basically means stripping away atoms of another isotope, called U-238. So once one achieves 20% purity on the way to 90%, “you’re most of the way there already,” Chyba said.
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