Quote:
Originally Posted by AlexanderHowl
Anyway, the fuel would have decayed sufficiently within a quarter century to 'poison' the fuel rods, so they would just be highly radiative waste.
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How so? Submarine reactors use highly enriched uranium, and U-235 has a half-life of just over 700 million years. Now, if the reactor has been used significantly, some of the fission products may be strong neutron absorbers, but finding a nuclear sub is sufficiently implausible already that you might as well make it one with a fresh reactor.