> Chernobyl is the only accident in commercial nuclear history that has exposed people to large enough doses of radiation to poison and kill them. The Tokaimura incident (Japan, 1999) comes to mind as a counterexample. https://www-pub.iaea.org/MTCD/Publications/PDF/TOAC_web.pdf TL;DR: enriched uranium solution was poured into a tank with improper geometry and reached criticality; three workers were severely irradiate…
I remember someone from the Manhattan Project that suffered the same fate. Is that "commercial nuclear history?" This article on Douglas Crofut [died 1981] implies that there were several. "His death was the first of its kind in the United States since the 1940s, when radiation deaths occurred during the Manhattan Project at Los Alamos, New Mexico." https://en.wikipedia.org/wiki/Douglas_Crofut It turns out that there…
https://en.wikipedia.org/wiki/Cecil_Kelley_criticality_accid...
Interestingly, both the Tokaimura and Kelley incidents involved a radioactive solution in an unfavorable geometry.