Absorbed Dose
type: QuantityKind
description: "Absorbed Dose" (also known as Total Ionizing Dose, TID) is a measure of the energy deposited in a medium by ionizing radiation. It is equal to the energy deposited per unit mass of medium, and so has the unit $J/kg$, which is given the special name Gray ($Gy$).
applicable unit: CentiGRAY
applicable unit: GRAY
applicable unit: KiloGRAY
applicable unit: MegaGRAY
applicable unit: MicroGRAY
applicable unit: MilliGRAY
applicable unit: MilliRAD R
applicable unit: NanoGRAY
applicable unit: RAD R
dbpedia match: http://dbpedia.org/resource/Absorbed_dose
has dimension vector: A0E0L2I0M0H0T-2D0
iec61360 code: 0112/2///62720#UAD000
informative reference: https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/ListsOfUnitsAllVersions/0112-2---62720%23UAD000
informative reference: https://en.wikipedia.org/wiki/Absorbed_dose
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $D = \frac{d\bar{\varepsilon}}{dm}$, where $d\bar{\varepsilon}$ is the mean energy imparted by ionizing radiation to an element of irradiated matter with the mass $dm$.
organized under: SpecificEnergy
si exact match: ABDO
symbol: D
wikidata match: Q215313
comment: Applicable units are those of quantitykind:AbsorbedDose
comment: Note that the absorbed dose is not a good indicator of the likely biological effect. 1 Gy of alpha radiation would be much more biologically damaging than 1 Gy of photon radiation for example. Appropriate weighting factors can be applied reflecting the different relative biological effects to find the equivalent dose. The risk of stoctic effects due to radiation exposure can be quantified using the effective dose, which is a weighted average of the equivalent dose to each organ depending upon its radiosensitivity. When ionising radiation is used to treat cancer, the doctor will usually prescribe the radiotherapy treatment in Gy. When risk from ionising radiation is being discussed, a related unit, the Sievert is used.
broader: SpecificEnergy