For a specific living organism or part of an organism, the ratio of the absorbed doseThe absorbed dose D is the quotient of the average energy tr... of a reference radiationEnergy dispersion through matter or space. In atomic physics... (mostly 200 kV x-rays) causing a certain biological effect to the absorbed doseThe absorbed dose D is the quotient of the average energy tr... of the respective radiationEnergy dispersion through matter or space. In atomic physics... causing the same biological effect. The term should be used exclusively in radiobiology and not in radiation protectionRadiation protection deals with the protection of individual....