3 ms·
I was curious so I went to check, it seems that the minimum size (as a sphere) for a critical mass of Pu-239 would be around 10cm. https://en.wikipedia.org/wik
by aledalgrande 4y ago
I was curious so I went to check, it seems that the minimum size (as a sphere) for a critical mass of Pu-239 would be around 10cm.
https://en.wikipedia.org/wiki/Critical_mass#Critical_mass_of_a_bare_sphere https://en.wikipedia.org/wiki/Critical_mass#Critical_mass_of...
- bombcar 4y agoWasn’t the issue that you can make a core just below critical and shove it above critical by wrapping it in reflectors?