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Title: The Mayak Worker Dosimetry System (MWDS-2013): Internal Dosimetry Results

Abstract

The distribution of calculated internal doses was determined for 8043 Mayak Production Associate (Mayak PA) workers according to the epidemiological cohorts and groups of raw data used as well as the type of industrial compounds of inhaled aerosols. Statistical characteristics of point estimates of accumulated doses to 17 different tissues and organs and the uncertainty ranges were calculated. Under the MWDS-2013 dosimetry system, the mean accumulated lung dose was 185585 mGy, with a median value of 31 mGy and a maximum of 8980 mGy maximum. The ranges of relative standard uncertainty were: from 40 to 2200% for accumulated lung dose, from 25-90% to 2600-3000% for accumulated dose to different regions of respiratory tract, from 13-18% to 2300-2500% for systemic organs and tissues. The Mayak PA workers accumulated internal plutonium lung dose is shown to be close to lognormal. The accumulated internal plutonium dose to systemic organs was close to a log-triangle. The dependency of uncertainty of accumulated absorbed lung and liver doses on the dose estimates itself is also shown. The accumulated absorbed doses to lung, alveolar-interstitial region, liver, bone surface cells and red bone marrow, calculated both with MWDS-2013 and MWDS-2008 have been compared. In general, the accumulated lungmore » doses increased by a factor of 1.8 in median value, while the accumulated doses to systemic organs decreased by factor of 1.3-1.4 in median value. For the cases with identical initial data, accumulated lung doses increased by a factor of 2.1 in median value, while accumulated doses to systemic organs decreased by 8-13% in median value. For the cases with both identical initial data and all of plutonium activity in urine measurements above the decision threshold, accumulated lung doses increased by a factor of 2.8 in median value, while accumulated doses to systemic organs increased by 6-12% in median value.« less

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1416690
Report Number(s):
PNNL-SA-115989
Journal ID: ISSN 0144-8420; HU2006300
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Radiation Protection Dosimetry
Additional Journal Information:
Journal Volume: 176; Journal Issue: 1-2; Journal ID: ISSN 0144-8420
Publisher:
Oxford University Press
Country of Publication:
United States
Language:
English
Subject:
Mayak; dose reconstruction; retrospective dosimetry; internal dose; plutonium

Citation Formats

Vostrotin, Vadim, Birchall, Alan, Zhdanov, Alexey, Puncher, Matthew, Efimov, Alexander, Napier, Bruce, Sokolova, Alexandra, Miller, Scott, and Suslova, Klara. The Mayak Worker Dosimetry System (MWDS-2013): Internal Dosimetry Results. United States: N. p., 2016. Web. doi:10.1093/rpd/ncw268.
Vostrotin, Vadim, Birchall, Alan, Zhdanov, Alexey, Puncher, Matthew, Efimov, Alexander, Napier, Bruce, Sokolova, Alexandra, Miller, Scott, & Suslova, Klara. The Mayak Worker Dosimetry System (MWDS-2013): Internal Dosimetry Results. United States. doi:10.1093/rpd/ncw268.
Vostrotin, Vadim, Birchall, Alan, Zhdanov, Alexey, Puncher, Matthew, Efimov, Alexander, Napier, Bruce, Sokolova, Alexandra, Miller, Scott, and Suslova, Klara. Sat . "The Mayak Worker Dosimetry System (MWDS-2013): Internal Dosimetry Results". United States. doi:10.1093/rpd/ncw268.
@article{osti_1416690,
title = {The Mayak Worker Dosimetry System (MWDS-2013): Internal Dosimetry Results},
author = {Vostrotin, Vadim and Birchall, Alan and Zhdanov, Alexey and Puncher, Matthew and Efimov, Alexander and Napier, Bruce and Sokolova, Alexandra and Miller, Scott and Suslova, Klara},
abstractNote = {The distribution of calculated internal doses was determined for 8043 Mayak Production Associate (Mayak PA) workers according to the epidemiological cohorts and groups of raw data used as well as the type of industrial compounds of inhaled aerosols. Statistical characteristics of point estimates of accumulated doses to 17 different tissues and organs and the uncertainty ranges were calculated. Under the MWDS-2013 dosimetry system, the mean accumulated lung dose was 185585 mGy, with a median value of 31 mGy and a maximum of 8980 mGy maximum. The ranges of relative standard uncertainty were: from 40 to 2200% for accumulated lung dose, from 25-90% to 2600-3000% for accumulated dose to different regions of respiratory tract, from 13-18% to 2300-2500% for systemic organs and tissues. The Mayak PA workers accumulated internal plutonium lung dose is shown to be close to lognormal. The accumulated internal plutonium dose to systemic organs was close to a log-triangle. The dependency of uncertainty of accumulated absorbed lung and liver doses on the dose estimates itself is also shown. The accumulated absorbed doses to lung, alveolar-interstitial region, liver, bone surface cells and red bone marrow, calculated both with MWDS-2013 and MWDS-2008 have been compared. In general, the accumulated lung doses increased by a factor of 1.8 in median value, while the accumulated doses to systemic organs decreased by factor of 1.3-1.4 in median value. For the cases with identical initial data, accumulated lung doses increased by a factor of 2.1 in median value, while accumulated doses to systemic organs decreased by 8-13% in median value. For the cases with both identical initial data and all of plutonium activity in urine measurements above the decision threshold, accumulated lung doses increased by a factor of 2.8 in median value, while accumulated doses to systemic organs increased by 6-12% in median value.},
doi = {10.1093/rpd/ncw268},
journal = {Radiation Protection Dosimetry},
issn = {0144-8420},
number = 1-2,
volume = 176,
place = {United States},
year = {2016},
month = {9}
}

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