Editing Equivalent dose (section)

===Limitation of equivalent dose calculation===
Equivalent dose ''H''<sub>T</sub> is used for assessing stochastic health risk due to external radiation fields that ''penetrate uniformly'' through the ''whole body''. However it needs further corrections when the field is applied only to part(s) of the body, or non-uniformly to measure the overall stochastic health risk to the body. To enable this a further dose quantity called [[Effective dose (radiation)|effective dose]] must be used to take into account the varying sensitivity of different organs and tissues to radiation.