Fusors make neutrons and can cause activation of nearby materials which can lead to all sorts of decay chains and radioactive products. Particle accelerators a

Fusors make neutrons and can cause activation of nearby materials which can lead to all sorts of decay chains and radioactive products. Particle accelerators are cool though, despite the obvious danger. If you're dealing with just electrons, IIRC you need to get to about 6MeV to overcome the nuclear binding forces and initiate a decay. You can make a hell of a lot of X-rays below that of course, but personally one of my life's goals is to cause an atom to split :) No time for that now, but that's what retirement is for. As a bonus, radiation is a lot less damaging when you're past 50, so unless you get high enough to induce acute radiation poisoning you'll probably be fine. You can actually make a fairly low-tech accelerator with just a large Van De Graaff generator. There are even designs which replace the belt with a chain(https://en.wikipedia.org/wiki/Pelletron https://en.wikipedia.org/wiki/Pelletron) and reach fairly high energies(for a home unit anyway).