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Equivalent dose

The limiting quantity equivalent dose (H) represents the stochastic health effects of low levels of ionizing radiation on human tissue. The corresponding unit is sievert (Sv).

The equivalent dose is obtained by multiplying the absorbed dose (D) with the radiation weighting factor (wR):

H = wR×D

In order to prevent tissue reactions, the Decree on Basic Standards Radiation Protection poses a limit on the anual equivalent dose the lens of the eye, the skin and the extremities (see table below).

category limit (mSv/year)
Hlens Hskin Hextremities
exposed A-worker 20 500 500
exposed B-worker 15 150 150
other worker 15 50 50
member of the public 15 50 50

Related dose quantities:

Last modified:15 January 2021 4.20 p.m.
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