In the days of Cockroft and Walton, when they were first developing particle accelerators they didn't know about the dangers of radiation, and so one… - Suzie Sheehy

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In the days of Cockroft and Walton, when they were first developing particle accelerators they didn't know about the dangers of radiation, and so one of the ways that they counted the events... what was happening in their experiments, was... to sit... under the beam. The beam would come down, some nuclear reaction would happen, and... his fluorescent screen... would light up every time what they were looking for happened... [T]hey would sit there and count each time it lit up, sitting underneath the beam, being irradiated. ...[T]hese people lived relatively healthy lives, and Cockroft and Walton got a for work, which doesn't justify it, but there have been people who have stuck their heads in particle accelerators.