looking for documentation for 1963 minuteman missile computer

17 Oct 2001

...
   There are
tricks to getting the critical radius down to lower values...
   Hmmm.  Well, like I said, I'm not a weapon designer.  I don't even play
 one on TV. :)

 (does the trick involve Tritium, or is that just a yield enhancer for
 implosion types?) 
The tricks usually involve things like surrounding the implosion core
with a neutron reflector which can reduce the critical mass by a factor
of two (from 11 kg to 5 kg or so for Pu).

For some reason I don't understand and haven't looked into, it's possible
to get a critical mass as low as 1 kg using plutonium nitrate solution 
in a stainless steel implosion sphere.  Yield would probably be a few kilotons.

Tritium is a yeild enhancer.  Turns your A bomb into an H bomb.

Eric (also not a weapons designer)

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looking for documentation for 1963 minuteman missile computer