[ RadSafe ] definition of Rad

Kai Kaletsch eic at shaw.ca
Tue Oct 2 11:10:38 CDT 2007


According to the Wikipedia entry for 'Rad', it was defined from 1918 to 1953 as the unit of X-ray dose required to kill a mouse. 1) I never heard this definition before and 2) This seems like a very low dose for killing anything.

This is somewhat before my time and I normally use SI units. Is the Wikipedia statement correct?


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