A thorough look at Iran’s deployment and operation of IR-6 centrifuges indicates that this advanced centrifuge, widely assumed to be Iran’s most promising and successful model, represents hidden challenges and inefficiencies in the Iranian enrichment program. There are several indicators that Iran’s IR-6 centrifuge is less reliable, either due to design issues or lack of high quality components, and less efficient in its enrichment output than publicly assumed. It is achieving about half of its single machine theoretical value and about two thirds of its expected production-scale value. 

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Read the rest of the report at the Institute for Science and International Security.