Dose equivalent Equivalent dose or radiation dosage is a dose quantity used in radiological protection to represent the stochastic health effects (probability of cancer induction and genetic damage) of low levels of ionizing radiation on the human body. It is based on the physical quantity absorbed dose, but takes into account the biological effectiveness of the radiation, which is dependent on the radiation type and energy. [Wikipedia: https://en.wikipedia.org/wiki/Absorbed_dose] Radiology QUDT http://qudt.org/vocab/quantity#DoseEquivalent Absorbed dose, does equivalent, and specific energy all have the same dimensionality. ODM2 Units Type Controlled Vocabulary ODM2 Working Group A vocabulary for describing the type of the Unit or the more general quantity that the Unit represents.