TeachMeFinance.com - explain Roentgen (R)
Roentgen (R) The term 'Roentgen (R)' as it applies to the area of nuclear science can be defined as ' A unit of exposure to ionizing radiation. It is the amount of gamma or x-rays required to produce ions resulting in a charge of 0.000258 coulombs/kilogram of air under standard conditions. Named after Wilhelm Roentgen, the German scientist who discovered x-rays in 1895. '.
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