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Choosing an Alpha Radiation Weighting Factor for Doses to Non-human Biota by Douglas B. Chambers; Richard V. Osborne; Amy L. Garva is a Environmental Science article available to read on EtoBox.

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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.

Who reads Choosing an Alpha Radiation Weighting Factor for Doses to Non-human Biota?

Author

Douglas B. Chambers; Richard V. Osborne; Amy L. Garva

Publisher

Elsevier Science; Elsevier ; Elsevier BV; Publons (ISSN 0265-931X)

Published

2006

Language

EN

Field

Environmental Science (Physical Sciences)