Units of measurement
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Roentgen (R)
Millisievert (mSv)
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Information
Roentgen (R)
Röntgen (R) – unit of measurement for ionizing radiation dose, widely used before the introduction of the SI system but still used in some countries.
Millisievert (mSv)
Millisievert (mSv) – unit of measurement for ionizing radiation dose, equal to one-thousandth of a sievert (1 mSv = 0.001 Sv).