Difference between revisions of "Organ/tissue absorbed dose"
| Line 22: | Line 22: | ||
</math> | </math> | ||
| − | === from [[ICRP Publication 130]], 2015 | + | === from [[ICRP Publication 116]], 2010; [[ICRP Publication 123]], 2013; [[ICRP Publication 130]], 2015; [[ICRP Publication 133]], 2016 === |
The mean absorbed dose in a specified organ or tissue region <math>r_T</math> is given by: | The mean absorbed dose in a specified organ or tissue region <math>r_T</math> is given by: | ||
| Line 30: | Line 30: | ||
</math> | </math> | ||
| − | where <math>m_T</math> is the mass of the organ or tissue and <math>D</math> is the absorbed dose in the mass element <math>dm</math>. The SI unit of mean absorbed dose is joule per kilogramme (J kg<sup>-1</sup>) and its special name is [[gray]] (Gy). | + | where <math>m_T</math> is the mass of the organ or tissue and <math>D</math> is the absorbed dose in the mass element <math>dm</math>. The SI unit of mean absorbed dose is joule per kilogramme (J kg<sup>-1</sup>) and its special name is [[gray]] (Gy). The mean absorbed dose in an organ is sometimes termed organ dose. |
Revision as of 18:09, 18 August 2021
Absorbed dose, [math]D[/math], averaged over an organ or tissue region, [math]T[/math], as:
[math] D_T=\frac{\epsilon_T}{m_T} [/math]
Where [math]\epsilon_T[/math] is the mean total energy imparted in a tissue or organ [math]T[/math], and [math]m_T[/math] is the mass of that tissue or organ.
ICRP Publication 103, 2007
Return to Glossary
Previous glossary entries
from ICRP Publication 106, 2007
The mean absorbed dose [math]D_T[/math] to a target organ or tissue [math]T[/math] is the sum of the contributions, [math]D(T \leftarrow S)[/math], arising from nuclear transformations of the radionuclide in various source organs [math]S[/math], i.e.:
[math] D_t = \sum_{S} D(T \leftarrow S) [/math]
from ICRP Publication 116, 2010; ICRP Publication 123, 2013; ICRP Publication 130, 2015; ICRP Publication 133, 2016
The mean absorbed dose in a specified organ or tissue region [math]r_T[/math] is given by:
[math] D_T = \frac{1}{m_T} \int D\ dm [/math]
where [math]m_T[/math] is the mass of the organ or tissue and [math]D[/math] is the absorbed dose in the mass element [math]dm[/math]. The SI unit of mean absorbed dose is joule per kilogramme (J kg-1) and its special name is gray (Gy). The mean absorbed dose in an organ is sometimes termed organ dose.
