It's been used for plutonium. The explosive lenses used in implosion-type nuclear weapons are extremely-precise shaped charges, and work by focusing all the ex

It's been used for plutonium. The explosive lenses used in implosion-type nuclear weapons are extremely-precise shaped charges, and work by focusing all the explosion's energy into compressing the plutonium down to critical mass: https://en.wikipedia.org/wiki/Explosive_lens https://en.wikipedia.org/wiki/Explosive_lens https://en.wikipedia.org/wiki/Nuclear_weapon_design#Implosion-type https://en.wikipedia.org/wiki/Nuclear_weapon_design#Implosio...