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
![Relation between Roentgen (R), Radiation absorbed dose (RAD), Roentgen equivalent man (REM) radiation dose units Relation between Roentgen (R), Radiation absorbed dose (RAD), Roentgen equivalent man (REM) radiation dose units](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjJBlv7whRsywkSBOnoWCd-yW_IqIH22whfAfqvpp5iZrMk6yjD55ywZ7Mu0uu6aGZ9bOrh476R9AJyj_15uf-gaLREWZmNXyowpmEnQ3ReToELqKgecN9D9iDAdnchi5zOpNpR81JN9BZ4cBsV6NYkH6XNEO9SKocxswZ2arL0QyMG94T691U42SMB/s800/R%20to%20RAD%20to%20REM.webp)
Relation between Roentgen (R), Radiation absorbed dose (RAD), Roentgen equivalent man (REM) radiation dose units
![Comparison of miR-RAD and CBC in mice exposed to IND-spectrum neutrons... | Download Scientific Diagram Comparison of miR-RAD and CBC in mice exposed to IND-spectrum neutrons... | Download Scientific Diagram](https://www.researchgate.net/publication/342986568/figure/fig1/AS:913988414083075@1594923227744/Comparison-of-miR-RAD-and-CBC-in-mice-exposed-to-IND-spectrum-neutrons-and-gamma-rays-A.png)