<Gun-type fission weapons> don't work with <Plutonium-239> because of the presence of <Plutonium-240> as an impurity which leads to <fizzle (nuclear explosion)>.

Good mentions at: https://youtu.be/dgBDvnqMkT4?t=252


Gun-type fission weapons don't work with plutonium

{wiki}

This is the <isotope> that is produced for <nuclear weapons> by irradiating <Uranium-238> with a <neutron>.

<Plutonium-240> is a contaminant.


Plutonium-239

{c}

\Video[https://www.youtube.com/watch?v=W06g7gIfwRE]
{title=Oppenheimer's Gamble by <#Welch Labs>}
{description=
Fails to mention <Plutonium-240> as the source of the problem.
* https://youtu.be/W06g7gIfwRE?t=252 cool to learn that the explosive lenses had to be made out of two different types of explosives, slow and fast, to be more symmetrical
}


Ciro Santilli @cirosantilli 36

 Incoming links: Plutonium-240