To do this you would need a way to create a good vacuum and a way to generate some seriously high voltages. For confirmations, you would also need a neutron detector. Totally achievable stuff, many people have done it with home setups, there is even an Instructable here https://www.instructables.com/Build-A-Fusion-Reactor/
Impressive build by the kid!
The kind of nuclear fusion that governments spend billions of dollars of research on though is the kind where you actually get some net energy out of the reaction.
Amusingly, the vacuum pump in the picture (above this text, his right hand resting on it):
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Within his home, Jackson’s lab is quite extensive and he describes it as having too many parts to even write down!
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Looks precisely like the model I bought from Amazon, to pull a vacuum for my self-install of my heat pump at home! These sorts of heat pumps come pre-charged with coolant, so after you connect the copper piping between the head (indoor) unit and the external compressor, you then need to pull a vacuum, validate the system is stable, then finally let the coolant into the entire system.
To me, this only highlights how some things are easily done with low cost, off the shelf parts.
When I was a kid, there was no way to easily, or effectively find such things anywhere my small rural town. Nor was there any easy way to even find magazines, which might have ads for companies selling such things!
I read an article once on how to create a low-tech nuke in a house. The TL;DR is that you mainly need shaped plutonium or a spicy flavor of uranium (a half ball and socket), a pipe, and some explosives. Shoot the ball at the socket using explosives, ?????, city leveled.
Getting the plutonium is the hard part though. And I'm probably trivializing it / missing some steps.
You either need enough of it so it goes prompt critical on it's own (which is very different from being critical, which means your largely running on natural fission, prompt means that your fission rates become exponential), without refining that probably requires half a ton of U or P material.
Nuclear non-proliferation is about controlling access to highly enriched materials, not the knowledge. If you have enough refined material for critical mass, getting it to blow up is trivial. Maximizing yield, not so much.
Impressive build by the kid!
The kind of nuclear fusion that governments spend billions of dollars of research on though is the kind where you actually get some net energy out of the reaction.