notes: Nuke should be circular for even explosion (optional). Use lot's of flammable materials for lot's of plasma.
steps: 1 the pre-detonator: The pre-detonator is a small nuke inside the larger one. The smaller one makes neutrons and pressure that release to activate the actual bomb. This prevents having to waste fuel on activation. layers of the pre-detonator:
a.Use an explosive of your choice (excluding thermite). b.Plutonium activator because plutonium is too slow to use fully as a pre-detonator, we use DEUT, but DEUT doesn't react under pressure we need to start it off using plutonium. c.Break away shell. Depending on the size of your bomb, sizes and materials in break away shell may vary. The break away shell breaks away just in time to allows neutrons from plutonium to escape to the DEUT. d.DEUT e.A breakable material to let neutrons and pressure through to fuel.
2 Fuel: DEUT or PLUT maybe a mix. You may also put other materials here e.g C4, BMTL (to make more lava), fire etc.
3 Shell: This is the final and most important piece of the bomb. It should tear away to re lease the power of the bomb. If it's too weak it'll spill all it's fuel before using it, if it's too strong the power of the bomb would have faded by the time it's gone. I recommend an burnable but not breakable material like INSL. Burnable because it will only tear when it's in the lava of the bomb meaning it's detonated and it makes plasma in the heat of the bomb. Not breakable because it will just fly away when the fuel is half burned.
Post nukes here once finished if you want to. Happy exploding!
Perfect Example: Uses a C4-Plutonium detonator. The main explosion is caused by DEUT(this next part is IMPORTANT) which was cooled to absolute zero(DEUT at absolute zero filled the entire shell, that is). Then it was heated to the maximum possible temperature, causing it to be EXTREMELY dense! So when it goes off it shoots out tendrils of DEUT.