Nuclear Weapons Material

Mikolaj Habryn dichro at tartarus.uwa.edu.au
Wed Aug 24 21:10:13 PDT 1994


> In a fusion, or H Bomb, the tritium (which is just hydrogen with an
> extra two neutrons) is that which produces the boom -- the main fuel,
> as it were. Its a "neutron source" only in the weakest possible sense
> -- the same way dynamite might be considered to need nitroglycerine as
> a "neutron source". (I'm not sure that people outside of the bomb
> building industry really know *for sure* what the geometries used in
> the atomic weapon that sets off the fusion reaction.)
> 

	This also depends on the type of bomb. In a two-stage fusion
bomb, you are quite correct - the tritium-deuterium/tritium fusion
reaction gives the boom. However, in a three-stage bomb, there is an
additional fission reaction, this due to the fact that the neutrons
produced by the fusion reaction have the precise energy required to
fission U-238. Since U-238 is vastly easier to obtain than enriched
U-235, there is no great problem with sticking in half a tonne of it.
Around that you can add cobalt jackets, etc, for more interesting
effects.

-- 
*       *       Mikolaj J. Habryn
                dichro at tartarus.uwa.edu.au
    *           "I'm just another sniper on the information super-highway."
                PGP Public key available by finger
    *           #include <standard-disclaimer.h>





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