rem: Rem is the term used to describe equivalent or effective radiation dose. In the International System of Units, the sievert (Sv) describes equivalent or effective radiation dose. One Sievert is equal to 100 rem.
Rem
The special unit for dose equivalent. The dose equivalent in rem is equal to the absorbed dose in rads, multiplied by the quality factor.
Roentgen (R) ...
in rem Against the thing.
insecticide Any substance or chemical formulated to kill or control insects.
in situ In place, the original location, in the natural environment.
REM (See reporting on environmental policies and measures.)
REReP (See Regional Environmental Reconstruction Programme)
RIVM (See National Institute for Public Health and the Environment, the Netherlands) ...
Rem
The rem is the old unit of Equivalent Dose (or more accurately Dose Equivalent ) and is derived by multiplying Absorbed Dose (in Rads ) by a Quality Factor . The modern SI unit is the Gray (Gy). 1 Gy = 100rem.
Quality Factor (QF): The factor by which the absorbed dose (rad or gray) must be multiplied to obtain a quantity that expresses, on a common scale for all ionizing radiation, the biological damage (rem or sievert) to the exposed tissue.
 See also: Environment, Media, Reduction, Air, Radiation
  
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