(rem) The rem is the dose equivalent of the absorbed dose considering the biological efficiency of the radiation, also called quality factor. With a quality factor of 1 is 1 rem equal to 1.07185 roentgens. One millirem is one thousandth of one rem.|
In the SI system of units the rem is replaced by the sievert (Sv), which is numerically equal to the absorbed dose in gray modified by a radiation
weighting factor. The conversion factor has been readjusted from 1 to 1.07185 so that 100 rem are equal to 1 Sv.
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