dose radiation dose false Jack Miller The samples received a dose of 1 Gy. (The use of the gray unit implies that "dose" refers to a measured quantity, typically absorbed dose or organ dose.) A measurement datum of the quantity of radiation absorbed by a substance or organism. The term "radiation dose" may for example refer to absorbed dose, organ dose, dose equivalent or equivalent dose, depending upon context and weighting factor(s). The samples received a dose of 1 Sv. (The use of the sievert unit implies that "dose" refers to a der