Changes

where <math>H_T^M</math>and math>H_F^M</math> are the equivalent doses to the tissues or organs <math>r_T</math> of the Reference Adult Male and the Reference Adult Female, respectively and <math>w_T</math> is the tissue weighting factor for target tissue T, with

where H_T^M and H_T^F are the equivalent doses to the tissues or organs r_T of the Reference Adult Male and the Reference Adult Female, respectively and <math>/sum_limits_T w_T is the tissue weighting factor for target tissue T, with ∑_T▒w_T = 1.  Effective dose is a weighted average of equivalent doses to organs/tissues. The averaging is performed over all organs and tissues of the human body for which radiation detriment can be quantified and for which wT values are assigned. As w_R and w_T are dimensionless, the SI unit for effective dose is the same as for absorbed dose J kg^(-1) and its special name is sievert (Sv).