My understanding of fusion reactors they are creating a condition similar what is happening on the sun. However, one of the benefits that have been noted is that with fusion reactors, there isn’t nuclear waste created by harmful radioactive waste particles like there is with fission reactors.
While the sun is undergoing fusion reactions, it emits large amounts of harmful radioactive particles. Why is the same case not happening with a Fusion Reactor?
In: 0
So there’s radiation and then there are materials that produce said radiation.
The sun produces harmful radiation but we’re mostly shielded from it by 100-ish km thick atmosphere, our buildings, our clothes, and sunblock (as a last resort when we cast off the buildings and clothes at the beach).
Nuclear fusion reactors produce the same or very similar harmful radiation but the reactors are shielded. The waste is mostly just helium that isn’t significantly dangerous.
Now, “old-school” fission reactors produce helium (we call it alpha radiation) but they also leave lots of material behind that is highly radioactive for a “brief” time (in geological or cosmological time scales). Also, it leaves behind some material that is moderately radioactive for much longer.
Either will kill you and it will probably hurt the entire time you’re dying.
Interesting tidbit of info: most of the “nuclear waste” from fission reactors is actually “spent nuclear fuel” and it still has tons of nuclear energy left in it. Like 90-95% of the potential energy remains. However, the engineering to get at that last 95% is difficult. There are new designs that could theoretically use up far more of the potential energy (and even make use of the spent nuclear fuel) but they still need a fair amount of R&D before they’re commercializable.
Latest Answers