Dose equivalence has the dimension dose equivalent radioactive energy per mass. The SI derived unit of dose equivalence is the sievert, which is defined as a joule of dose equivalent radiation per kilogram.

Maple knows the units of dose equivalent listed in the following table.

An asterisk ( * ) indicates the default context, an at sign (@) indicates an abbreviation, and under the prefixes column, SI indicates that the unit takes all SI prefixes, IEC indicates that the unit takes IEC prefixes, and SI+ and SI- indicate that the unit takes only positive and negative SI prefixes, respectively.  Refer to a unit in the Units package by indexing the name or symbol with the context, for example, rem[radiation] or Sv[SI]; or, if the context is indicated as the default, by using only the unit name or symbol, for example, rem or Sv.

The unit of dose equivalent is defined as follows.

A rem is defined as  sievert.