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Choosing an alpha radiation weighting factor for doses to non-human biota
- Source :
-
Journal of Environmental Radioactivity . Mar2006, Vol. 87 Issue 1, p1-14. 14p. - Publication Year :
- 2006
-
Abstract
- Abstract: The risk to non-human biota from exposure to ionizing radiation is of current international interest. In calculating radiation doses to humans, it is common to multiply the absorbed dose by a factor to account for the relative biological effectiveness (RBE) of the radiation type. However, there is no international consensus on the appropriate value of such a factor for weighting doses to non-human biota. This paper summarizes our review of the literature on experimentally determined RBEs for internally deposited alpha-emitting radionuclides. The relevancy of each experimental result in selecting a radiation weighting factor for doses from alpha particles in biota was judged on the basis of criteria established a priori. We recommend a nominal alpha radiation weighting factor of 5 for population-relevant deterministic and stochastic endpoints, but to reflect the limitations in the experimental data, uncertainty ranges of 1–10 and 1–20 were selected for population-relevant deterministic and stochastic endpoints, respectively. [Copyright &y& Elsevier]
- Subjects :
- *RADIATION doses
*RADIOISOTOPES
*RADIOTHERAPY
*STOCHASTIC models
*RESEARCH
Subjects
Details
- Language :
- English
- ISSN :
- 0265931X
- Volume :
- 87
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Environmental Radioactivity
- Publication Type :
- Academic Journal
- Accession number :
- 19609113
- Full Text :
- https://doi.org/10.1016/j.jenvrad.2005.10.009