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Ambient dose equivalent

ICRU-sphere
ICRU-sphere

The operational quantity ambient dose equivalent (H*(d)) is defined as the equivalent dose at point P at a depth of d mm in the ICRU-sphere. The corresponding unit is sievert (Sv).

It is assumed that the radiation field anywhere within the sphere is equal to that at point P (extended field) and that all radiation comes from the direction parallel to the shortest connection between the spherical surface and point P (aligned field).

Related dose quantities:

Last modified:16 January 2021 09.31 a.m.
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