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1 janv. 1941 - Glenn Seaborg discovers plutonium. The U.S. Committee on X‑ray Protection recommends adoption of maximum body burden of 0.1 microCurie for radium. L.S. Taylor recommends lowering the x‑ray exposure dose to 0.02 Roentgens/day.

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Radiation Timeline

ByJoshua Ha
8 juin 2018
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Date:

1 janv. 1941
Maintenaint
~ Il y a 84 ans

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