Michael S. Lorrey writes:
> Unshielded radiation sources I'm told can be easily detected, especially on cold
> terrain or in cold water because of the normal IR emissions of radioactive
Er, people say Pu is warm to the touch. I don't think this is true for
U235 (but they probably don't use it anymore). I don't think a warhead
will dissipate more than, say 20-30 W. This can be easily counteracted
with cooling techniques, creating a zero signature warhead.
> decay, I'm also told there are some neutron and xray detection methods as well.
You could spot a ton of uranium ore on Moon surface from orbit,
possibly. On Earth, forget it.
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