skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The estimation of absorbed dose rates for non-human biota : an extended inter-comparison.

Abstract

An exercise to compare 10 approaches for the calculation of unweighted whole-body absorbed dose rates was conducted for 74 radionuclides and five of the ICRP's Reference Animals and Plants, or RAPs (duck, frog, flatfish egg, rat and elongated earthworm), selected for this exercise to cover a range of body sizes, dimensions and exposure scenarios. Results were analysed using a non-parametric method requiring no specific hypotheses about the statistical distribution of data. The obtained unweighted absorbed dose rates for internal exposure compare well between the different approaches, with 70% of the results falling within a range of variation of {+-}20%. The variation is greater for external exposure, although 90% of the estimates are within an order of magnitude of one another. There are some discernible patterns where specific models over- or under-predicted. These are explained based on the methodological differences including number of daughter products included in the calculation of dose rate for a parent nuclide; source-target geometry; databases for discrete energy and yield of radionuclides; rounding errors in integration algorithms; and intrinsic differences in calculation methods. For certain radionuclides, these factors combine to generate systematic variations between approaches. Overall, the technique chosen to interpret the data enabled methodological differences inmore » dosimetry calculations to be quantified and compared, allowing the identification of common issues between different approaches and providing greater assurance on the fundamental dose conversion coefficient approaches used in available models for assessing radiological effects to biota.« less

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1];  [2];  [2];  [2] more »;  [2];  [2];  [2];  [2];  [2];  [2] « less
  1. (Environmental Science Division)
  2. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
EH
OSTI Identifier:
1020658
Report Number(s):
ANL/EVS/JA-68040
Journal ID: 0301-634X; TRN: US201116%%556
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Radiat. Environ. Biophys.; Journal Volume: 50; Journal Issue: 2 ; May 2011
Country of Publication:
United States
Language:
ENGLISH
Subject:
59 BASIC BIOLOGICAL SCIENCES; 61 RADIATION PROTECTION AND DOSIMETRY; ALGORITHMS; ANIMALS; CALCULATION METHODS; DAUGHTER PRODUCTS; DIMENSIONS; DISTRIBUTION; DOSE RATES; DOSIMETRY; GEOMETRY; RADIATION DOSES; RADIOISOTOPES

Citation Formats

Batlle, J. V. I., Beaugelin-Seiller, K., Beresford, N. A., Copplestone, D., Horyna, J., Hosseini, A., Johansen, M., Kamboj, S., Keum, D.-K., Kurosawa, N., Newsome, L., Olyslaegers, G., Vandenhove, H., Ryufuku, S., Lynch, S. V., Wood, M. D., Yu, C., Westlakes Scientific Consulting Ltd.), Inst. de Radioprotection et de Surete Nucleaire), Centre for Ecology & Hydrology), Norwegian Radiation Protection Authority), State Office for Nuclear Safety), Korea Atomic Energy Research Institute), Visible Information Centre Inc.), Belgian Nuclear Research Centre), and University of Liverpool). The estimation of absorbed dose rates for non-human biota : an extended inter-comparison.. United States: N. p., 2011. Web. doi:10.1007/s00411-010-0346-5.
Batlle, J. V. I., Beaugelin-Seiller, K., Beresford, N. A., Copplestone, D., Horyna, J., Hosseini, A., Johansen, M., Kamboj, S., Keum, D.-K., Kurosawa, N., Newsome, L., Olyslaegers, G., Vandenhove, H., Ryufuku, S., Lynch, S. V., Wood, M. D., Yu, C., Westlakes Scientific Consulting Ltd.), Inst. de Radioprotection et de Surete Nucleaire), Centre for Ecology & Hydrology), Norwegian Radiation Protection Authority), State Office for Nuclear Safety), Korea Atomic Energy Research Institute), Visible Information Centre Inc.), Belgian Nuclear Research Centre), & University of Liverpool). The estimation of absorbed dose rates for non-human biota : an extended inter-comparison.. United States. doi:10.1007/s00411-010-0346-5.
Batlle, J. V. I., Beaugelin-Seiller, K., Beresford, N. A., Copplestone, D., Horyna, J., Hosseini, A., Johansen, M., Kamboj, S., Keum, D.-K., Kurosawa, N., Newsome, L., Olyslaegers, G., Vandenhove, H., Ryufuku, S., Lynch, S. V., Wood, M. D., Yu, C., Westlakes Scientific Consulting Ltd.), Inst. de Radioprotection et de Surete Nucleaire), Centre for Ecology & Hydrology), Norwegian Radiation Protection Authority), State Office for Nuclear Safety), Korea Atomic Energy Research Institute), Visible Information Centre Inc.), Belgian Nuclear Research Centre), and University of Liverpool). Sun . "The estimation of absorbed dose rates for non-human biota : an extended inter-comparison.". United States. doi:10.1007/s00411-010-0346-5.
@article{osti_1020658,
title = {The estimation of absorbed dose rates for non-human biota : an extended inter-comparison.},
author = {Batlle, J. V. I. and Beaugelin-Seiller, K. and Beresford, N. A. and Copplestone, D. and Horyna, J. and Hosseini, A. and Johansen, M. and Kamboj, S. and Keum, D.-K. and Kurosawa, N. and Newsome, L. and Olyslaegers, G. and Vandenhove, H. and Ryufuku, S. and Lynch, S. V. and Wood, M. D. and Yu, C. and Westlakes Scientific Consulting Ltd.) and Inst. de Radioprotection et de Surete Nucleaire) and Centre for Ecology & Hydrology) and Norwegian Radiation Protection Authority) and State Office for Nuclear Safety) and Korea Atomic Energy Research Institute) and Visible Information Centre Inc.) and Belgian Nuclear Research Centre) and University of Liverpool)},
abstractNote = {An exercise to compare 10 approaches for the calculation of unweighted whole-body absorbed dose rates was conducted for 74 radionuclides and five of the ICRP's Reference Animals and Plants, or RAPs (duck, frog, flatfish egg, rat and elongated earthworm), selected for this exercise to cover a range of body sizes, dimensions and exposure scenarios. Results were analysed using a non-parametric method requiring no specific hypotheses about the statistical distribution of data. The obtained unweighted absorbed dose rates for internal exposure compare well between the different approaches, with 70% of the results falling within a range of variation of {+-}20%. The variation is greater for external exposure, although 90% of the estimates are within an order of magnitude of one another. There are some discernible patterns where specific models over- or under-predicted. These are explained based on the methodological differences including number of daughter products included in the calculation of dose rate for a parent nuclide; source-target geometry; databases for discrete energy and yield of radionuclides; rounding errors in integration algorithms; and intrinsic differences in calculation methods. For certain radionuclides, these factors combine to generate systematic variations between approaches. Overall, the technique chosen to interpret the data enabled methodological differences in dosimetry calculations to be quantified and compared, allowing the identification of common issues between different approaches and providing greater assurance on the fundamental dose conversion coefficient approaches used in available models for assessing radiological effects to biota.},
doi = {10.1007/s00411-010-0346-5},
journal = {Radiat. Environ. Biophys.},
number = 2 ; May 2011,
volume = 50,
place = {United States},
year = {Sun May 01 00:00:00 EDT 2011},
month = {Sun May 01 00:00:00 EDT 2011}
}