As of Version 9.0, unit functionality is built into the Wolfram Language

is a unit of absorbed dose of radiation.


  • To use , you first need to load the Units Package using Needs["Units`"].
  • is equivalent to 0.01 GrayDose (SI units).
  • Convert[n Rad,newunits] converts n Rad to a form involving units newunits.
  • is typically abbreviated as rad.