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Effective dose equivalent

Charlotte White — Thu, 10 Sep 2026 00:58:24 GMT

Charlotte White — Thu, 10 Sep 2026 00:33:09 GMT

Charlotte White — Thu, 10 Sep 2026 00:28:15 GMT

Charlotte White — Tue, 01 Sep 2026 17:57:36 GMT

Charlotte White — Tue, 01 Sep 2026 17:57:05 GMT

Charlotte White — Tue, 01 Sep 2026 17:53:12 GMT

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 <div style='text-align: center;'>
 <math>
-H_E = \displaystyle \sum_{T} w_TH_T
+H_\text{E} = \displaystyle \sum_{\text{T}} w_\text{T}H_\text{T}
 </math>
 </div>
-where H<sub>T</sub> is the dose equivalent to an organ or tissue T and w<sub>T</sub> is the tissue weighting factor. The SI unit of effective dose equivalent is joule per kilogramme (J kg<sup>-1</sup>), and its special name is sievert (Sv). A quantity introduced by ICRP in [[ICRP Publication 26|Publication 26]] (ICRP, 1977) and replaced by effective dose in [[ICRP Publication 60]] (ICRP, 1991).
+where <math>H_\text{T}</math> is the dose equivalent to an organ or tissue <math>\text{T}</math> and <math>w_\text{T}</math> is the tissue weighting factor. The SI unit of effective dose equivalent is joule per kilogramme (J kg<sup>-1</sup>), and its special name is sievert (Sv). A quantity introduced by ICRP in [[ICRP Publication 26|Publication 26]] (ICRP, 1977) and replaced by effective dose in [[ICRP Publication 60]] (ICRP, 1991).
 ''ICRP Glossary entry -  May 2019''

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-The sum of the products of the sex-averaged committed organ- or tissue-equivalent doses, <math>H_T(τ)</math>, and the appropriate tissue weighting factors (<math>w_T</math>), where <math>τ</math> is the integration time in years following the intake. The commitment period <math>τ</math> is taken to be 50 years for adults, and to 70 years of age for children. (adapted from [[ICRP Publication 103]], 2007)
+The sum of the products of the sex-averaged committed organ- or tissue-equivalent doses, <math>H_\text{T}(τ)</math>, and the appropriate tissue weighting factors (<math>w_\text{T}</math>), where <math>τ</math> is the integration time in years following the intake. The commitment period <math>τ</math> is taken to be 50 years for adults, and to 70 years of age for children. (adapted from [[ICRP Publication 103]], 2007)
 where <math>τ</math> is the integration time following the intake at time <math>t_0</math>. The quantity committed effective dose <math>E(τ)</math> is then given by:
 <div style='text-align: center;'>
 <math>
-E(τ) = \displaystyle \sum_{T} w_TH_T(τ)
+E(τ) = \displaystyle \sum_{\text{T}} w_\text{T}H_\text{T}(τ)
 </math>
 </div>

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-The time integral of the equivalent dose rate in a particular tissue or organ that will be received by an individual following intake of radioactive material into the body by a Reference Person, where s is the integration time in years. ([[ICRP Publication 103]], 2007)
+The time integral of the equivalent dose rate in a particular tissue or organ that will be received by an individual following intake of radioactive material into the body by a Reference Person, where <math>τ</math> is the integration time in years. ([[ICRP Publication 103]], 2007)
-The committed equivalent dose (<math>H_T(τ)</math>) in a tissue or organ <math>T</math> is defined by:
+The committed equivalent dose (<math>H_\text{T}(τ)</math>) in a tissue or organ <math>\text{T}</math> is defined by:
 <div style='text-align: center;'>
 <math>
-H_T(τ)= \int\limits_{t_0}^{t_0+τ} H_T(t)dt
+H_\text{T}(τ)= \int\limits_{t_0}^{t_0+τ} H_\text{T}(t)\text{d}t
 </math>
 </div>

@@ Line 3: / Line 3: @@
 <div style='text-align: center;'>
 <math>
-H_E = \displaystyle \sum_{T} w_tH_t
+H_E = \displaystyle \sum_{T} w_TH_T
 </math>
 </div>

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 <div style='text-align: center;'>
 <math>
-H_t(τ)= \int\limits_{t_0}^{t_0+τ} H_t(t)dt
+H_T(τ)= \int\limits_{t_0}^{t_0+τ} H_T(t)dt
 </math>
 </div>