There's a Russian Physicist that was in an accident where a proton beam went through his head: https://en.wikipedia.org/wiki/Anatoli_Bugorski https://en.wikiped

There's a Russian Physicist that was in an accident where a proton beam went through his head: https://en.wikipedia.org/wiki/Anatoli_Bugorski https://en.wikipedia.org/wiki/Anatoli_Bugorski He lived but with some brain injury. I'm not sure what the differences in effect electrons vs protons and a focused vs diffuse beam would be though.