Absorbed dose rate coefficients for 134Cs and 137Cs with steady-state distribution in the human body : S-coefficients revisited
(2021) In Journal of Radiological Protection 41(4).- Abstract
In the event of an accidental release of radioactive elements from a nuclear power plant, it has been shown that the radionuclides contributing the most to long-term exposure are 134Cs and 137Cs. In the case of nuclear power plant fallout, with subsequent intake of radionuclides through the food chain, the internal absorbed dose to target tissues from protracted intake of radionuclides needs to be estimated. Internal contamination from food consumption is not caused by a single intake event; hence, the committed equivalent dose, calculated by a dose coefficient or dose per content function, cannot be easily used to calculate the cumulative absorbed dose to relevant target tissues in the body. In this study, we calculated updated... (More)
In the event of an accidental release of radioactive elements from a nuclear power plant, it has been shown that the radionuclides contributing the most to long-term exposure are 134Cs and 137Cs. In the case of nuclear power plant fallout, with subsequent intake of radionuclides through the food chain, the internal absorbed dose to target tissues from protracted intake of radionuclides needs to be estimated. Internal contamination from food consumption is not caused by a single intake event; hence, the committed equivalent dose, calculated by a dose coefficient or dose per content function, cannot be easily used to calculate the cumulative absorbed dose to relevant target tissues in the body. In this study, we calculated updated absorbed dose rate coefficients for 134Cs and 137Cs based on data from the International Commission on Radiological Protection (ICRP) on specific absorbed fractions. The absorbed dose rate coefficients are provided for male and female adult reference phantoms, respectively, assuming a steady-state distribution of Cs that we calculated from the ICRP biokinetic model for Cs. With these coefficients, the absorbed dose to the listed target tissues, separately and to the total body, are related to the number of nuclear transitions (time-integrated activity) in each listed source region. Our new absorbed dose rate coefficients are given for the complete set of target tissues and have not been presented before. They are also provided for aggregated categories of organs to facilitate epidemiological studies.
(Less)
- author
- Isaksson, Mats ; Tondel, Martin ; Wålinder, Robert and Rääf, Christopher LU
- organization
- publishing date
- 2021-12
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Radiological Protection
- volume
- 41
- issue
- 4
- article number
- 1213
- publisher
- IOP Publishing
- external identifiers
-
- pmid:34634780
- scopus:85122166641
- ISSN
- 0952-4746
- DOI
- 10.1088/1361-6498/ac2ec4
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2021 The Author(s). Published on behalf of the Society for Radiological Protection by IOP Publishing Ltd.
- id
- 02cbb9aa-19c4-4421-a46d-f3f648d22430
- date added to LUP
- 2022-02-21 09:29:08
- date last changed
- 2024-04-04 03:48:45
@article{02cbb9aa-19c4-4421-a46d-f3f648d22430,
abstract = {{<p>In the event of an accidental release of radioactive elements from a nuclear power plant, it has been shown that the radionuclides contributing the most to long-term exposure are 134Cs and 137Cs. In the case of nuclear power plant fallout, with subsequent intake of radionuclides through the food chain, the internal absorbed dose to target tissues from protracted intake of radionuclides needs to be estimated. Internal contamination from food consumption is not caused by a single intake event; hence, the committed equivalent dose, calculated by a dose coefficient or dose per content function, cannot be easily used to calculate the cumulative absorbed dose to relevant target tissues in the body. In this study, we calculated updated absorbed dose rate coefficients for 134Cs and 137Cs based on data from the International Commission on Radiological Protection (ICRP) on specific absorbed fractions. The absorbed dose rate coefficients are provided for male and female adult reference phantoms, respectively, assuming a steady-state distribution of Cs that we calculated from the ICRP biokinetic model for Cs. With these coefficients, the absorbed dose to the listed target tissues, separately and to the total body, are related to the number of nuclear transitions (time-integrated activity) in each listed source region. Our new absorbed dose rate coefficients are given for the complete set of target tissues and have not been presented before. They are also provided for aggregated categories of organs to facilitate epidemiological studies.</p>}},
author = {{Isaksson, Mats and Tondel, Martin and Wålinder, Robert and Rääf, Christopher}},
issn = {{0952-4746}},
language = {{eng}},
number = {{4}},
publisher = {{IOP Publishing}},
series = {{Journal of Radiological Protection}},
title = {{Absorbed dose rate coefficients for <sup>134</sup>Cs and <sup>137</sup>Cs with steady-state distribution in the human body : S-coefficients revisited}},
url = {{http://dx.doi.org/10.1088/1361-6498/ac2ec4}},
doi = {{10.1088/1361-6498/ac2ec4}},
volume = {{41}},
year = {{2021}},
}