Follow-up organ dose

The subsequent organ dose is a parameter in radiation protection that is required when radiating material ( radionuclides ) is absorbed into the body. It is the organ dose that is accumulated in the respective organ or tissue over the period τ. The subsequent organ dose is denoted by, the unit is the Sievert (Sv). A period of 50 years is assumed for adults. The corresponding subsequent organ dose is referred to as or . For children it is calculated up to the age of 70 years after incorporation. ${\displaystyle H_{\mathrm {T} }(\tau )}$ ${\displaystyle H_{\mathrm {T} }(50)}$ ${\displaystyle H_{\mathrm {T} \,50}}$

The organ subsequent dose is calculated as a time integral of the mean organ dose rate in a particular tissue or organ T that is obtained a reference person after the supply of a radioactive substance in the body, where τ is the integration time in years is:

${\displaystyle H_{\mathrm {T} }(\tau )=\int \limits _{t_{0}}^{t_{0}+\tau }{\dot {H}}_{\mathrm {T} }(t)\,dt}$.

The consequent organ dose takes into account the consequences of different types and energies of radiation (→ radiation weighting factor ). With the help of the following organ dose, the effective following dose for all affected organs and tissues can be calculated, taking into account tissue weighting factors .

literature

• Torsten Kuwert, Frank Grünwald, Uwe Haberkorn, Thomas Krause (eds.): Nuclear medicine. Thieme, Stuttgart 2008, ISBN 978-3-13-118504-4 , pp. 55-57.
• The recommendations of the International Commission on Radiological Protection (ICRP) of 2007. ICRP Publication 103. Adopted in March 2007. Publications of the International Commission on Radiological Protection. German edition published by the Federal Office for Radiation Protection. ( pdf Online 1.1 MB)