[elchrio]

It depends on the trigger, and the style. Tritium is typically used. Some may even use the polonium style, but that won't last much longer.

However.. The big thing is, maybe they can be refueled by the bad powers. I bet NK has quite a bit of Tritium now.

And for a real downer, a fizzle with no 'trigger' will detonate at minimum 10x Oklahoma City's bombing.

And you know what's worse? Uranium guns like Little Boy apparently do not need neutron triggers at all. That's 10-18kt of easy power, and look at the Graple tests. A small artillery shell can contain enough Uranium for a gun-detonation and delivery 15kt.

[Southack]

"It depends on the trigger, and the style. Tritium is typically used. Some may even use the polonium style, but that won't last much longer. However.. The big thing is, maybe they can be refueled by the bad powers. I bet NK has quite a bit of Tritium now."

That's all incorrect. Tritium is **not** a trigger material, by the way. Tritium is a booster.

[Southack]

"And you know what's worse? Uranium guns like Little Boy apparently do not need neutron triggers at all."

That's incorrect. Gun Assemblies **require** neutron triggers to initiate the chain reaction. Uranium weapons are gun assemblies, by the way.