![Civil Defense Museum - Radiation Instruments and Kits - Commercially Sold Radiation Meters For CD Use Civil Defense Museum - Radiation Instruments and Kits - Commercially Sold Radiation Meters For CD Use](http://www.civildefensemuseum.com/cdmuseum2/radkits/meters/bendkit/cdv736scale.jpg)
Civil Defense Museum - Radiation Instruments and Kits - Commercially Sold Radiation Meters For CD Use
What is the difference between Roentgen, Sieverts and RAD? I've looked it up but I still don't understand what they exactly measure in terms of radioactivity. - Quora
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