produced by the absorbed dose of 1
Gy
of photon radiation.
The non-SI unit of the equivalent
dose is roentgen-equivalent-man (rem).
1
Sv
=
100 Rem
The equivalent dose rate
(H) is defined by the formula:
H= dH/dT, where dT is a period of time.
In the SI system the equivalent dose rate
(H) is measured by Sievert per second (Sv/s).
1 Sv/s = 100 Rem/s
1 Sv/s= R/s or 1 µSv/s = 100 µR/s approximately.
It’s considered that the radiation level of 0,6 µSv/h (or 60 µR/h) detecting by modern
methods is safe for human.
