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(last updated 15 Nov 2022)
Contents:
If organ-specific results are not required, see the more sophisticated Uranium Radiation Individual Dose Calculator
The calculator only determines exposure to radiation; the chemical toxicity of uranium is not covered (see Uranium Toxicity).
The calculator only determines doses for adults. For age-specific dose calculations, see the Uranium Radiation Age-specific Dose Calculator.
The calculator only determines doses to exposed individuals. For collective dose calculations, see the Nuclear Fuel Population Health Risk Calculator.
The calculator only determines doses for situations, where the pathway and the rate of exposure to a contaminant is known. Otherwise, some more sophisticated software has to be used (see Uranium Mine and Mill Resident Individual Dose Calculator and Dose calculation software).
The parameters used for the calculation can be set in the Input table. These parameters show reasonable initial values which can be modified as needed. There are no other hidden parameters used in the calculation. Any assumptions made for the calculations are described on this page.
Cautionary Notice:
The user should be aware that several of the parameters used in the biokinetic model for the dose factors are subject to variations and uncertainties, while the calculator produces only one result, without indicating these elements of uncertainty.
> See also: Study assesses uncertainty of ICRP dose factors for ingestion and inhalation of radionuclides
The Calculator uses the dose coefficients from ICRP 72. At present, the dose coefficients of ICRP 60/61 (1990) are widely used, while revised dose coefficients have been presented for workers in ICRP 68 (1995) and for the public in ICRP 72 (1997). The new dose factors show significant differences from the old ones for the nuclides of interest.
All coefficients used are for adults.
For inhalation, an activity median aerodynamic diameter (AMAD) of 1 µm is assumed, and the solubility Class can be selected according to the chemical form of the uranium:
F: UF_{6}, UO_{2}F_{2}, UO_{2}(NO_{3})_{2} (f_{1} = 0.02)
M: UO_{3}, UF_{4}, UCl_{4} (f_{1} = 0.02)
S: UO_{2}, U_{3}O_{8} (f_{1} = 0.002)
For decay products, the calculator assumes the same solubility class as for the parent nuclide.
For ingestion, there is no distinction between solubility classes in ICRP 72.
The Risk Factor describes the risk of contracting fatal cancer per effective dose equivalent received.
The contents of the Results field can be highlighted for copying and pasting to other applications.
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