3 ms·
I remember reading somewhere that water slows neutrons down enough to allow for a much lower critical mass. I think it's in mentioned in Richard Feynman's acco
by soVeryTired 9y ago
I remember reading somewhere that water slows neutrons down enough to allow for a much lower critical mass.
I think it's in mentioned in Richard Feynman's account of his time in Loa Alamos in 'Surely you're joking Mr Feynman'.
- wereHamster 9y agoNot just any water, only https://en.wikipedia.org/wiki/Heavy_water https://en.wikipedia.org/wiki/Heavy_water has that property.
- philipkglass 9y agoHeavy water is more effective, but light (ordinary) water moderates neutrons too. That's how light water reactors work: https://en.wikipedia.org/wiki/Light-water_reactor https://en.wikipedia.org/wiki/Light-water_reactor