Yeah, rhenium radioactivity is pretty much irrelevant for health. I would worry more about radioactivity as a failure mode for these transistors. Given how fas

Yeah, rhenium radioactivity is pretty much irrelevant for health. I would worry more about radioactivity as a failure mode for these transistors. Given how fast these are and how few atoms are supposed to be there, the question is if a single atom in the lattice undergoing fission can a) blow up the lattice enough to disrupt it b) make it no longer perform the function because the atom that is there has different chemical properties