Editing Equivalent dose (section)

===Equivalent dose V dose equivalent===
There is no confusion between ''equivalent dose'' and ''dose equivalent''. Indeed, they are same concepts. Although the CIPM definition states that the linear energy transfer function of the ICRU is used in calculating the biological effect, the ICRP in 1990 <ref>ICRP publication 60 published in 1991</ref> developed the "protection" dose quantities named ''effective'' and ''equivalent'' dose, which are calculated from more complex computational models and are distinguished by not having the phrase ''dose equivalent'' in their name.

Prior to 1990, the ICRP used the term "dose equivalent" to refer to the absorbed dose at a point multiplied by the quality factor at that point, where the quality factor was a function of [[linear energy transfer]] (LET). Currently, the ICRP's definition of "equivalent dose" represents an average dose over an organ or tissue, and radiation weighting factors are used instead of quality factors.

The phrase ''dose equivalent'' is only used for which use Q for calculation, and the following are defined as such by the ICRU and ICRP:

* ambient dose equivalent
* directional dose equivalent
* personal dose equivalent

In the US there are further differently named dose quantities which are not part of the ICRP system of quantities.<ref>[http://www.wmsym.org/archives/2009/pdfs/9444.pdf - "The confusing world of radiation dosimetry"] {{Webarchive|url=https://web.archive.org/web/20161221205248/http://www.wmsym.org/archives/2009/pdfs/9444.pdf |date=2016-12-21 }} - M.A. Boyd, U.S. Environmental Protection Agency 2009. An account of chronological differences between US and ICRP dosimetry systems.</ref>