Current Events — HabitableZone

Current Events » in reply to Hello? Power plants make lousy weapons manufacturing sites.

It derpends on a couple of things.

1. How long the fuel rods remain in the reactor. For maximum production of Pu239, with a minimum of Pu240-241-242 contamination, you want short dwell times. For some power reactors, the entire reactor needs to be shut down to take fuel rods out. However, it is possible to design a power reactor in which the fuel rods can be rotated while in use.

2. To produce U235, one does not need a reactor at all. One needs isotopic separation using centrifugation or lasers. This can be done on a fairly small scale and hidden if desired.

3. Lasers can also be used to separate Pu isotopes after a long burn in a reactor. This produces isotopically pure Pu239. Pu can not be separated using centrifugation because PuF6 is too chemically unstable, and PuF4 is not sufficiently volatile, nor stable.

So there are several options open to Iran, at least one using a conventional power reactor.

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