Iran In Brief

Performance of the IR-1 Centrifuge at Natanz

October 19, 2011

Although the average monthly production of 3.5 percent low enriched uranium (LEU) has increased to about 150 kg/month, the number of centrifuges needed to produce this LEU has increased disproportionately compared to the previous year. During the last year, Iran has needed 5,860 IR-1 centrifuges to produce this amount of LEU. In the previous year, it would have needed only about 4,820 IR-1 centrifuges to make this quantity of LEU.

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