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. 2017 Aug;56(3):255-267.
doi: 10.1007/s00411-017-0692-7. Epub 2017 May 10.

Effective dose rate coefficients for exposure to contaminated soil

K G Veinot  1   2 , K F Eckerman  3 , M B Bellamy  4 , M M Hiller  4 , S A Dewji  4 , C E Easterly  3 , N E Hertel  4   5 , R Manger  6
Affiliations

Effective dose rate coefficients for exposure to contaminated soil

K G Veinot et al. Radiat Environ Biophys. 2017 Aug.

Abstract

The Oak Ridge National Laboratory Center for Radiation Protection Knowledge has undertaken calculations related to various environmental exposure scenarios. A previous paper reported the results for submersion in radioactive air and immersion in water using age-specific mathematical phantoms. This paper presents age-specific effective dose rate coefficients derived using stylized mathematical phantoms for exposure to contaminated soils. Dose rate coefficients for photon, electron, and positrons of discrete energies were calculated and folded with emissions of 1252 radionuclides addressed in ICRP Publication 107 to determine equivalent and effective dose rate coefficients. The MCNP6 radiation transport code was used for organ dose rate calculations for photons and the contribution of electrons to skin dose rate was derived using point-kernels. Bremsstrahlung and annihilation photons of positron emission were evaluated as discrete photons. The coefficients calculated in this work compare favorably to those reported in the US Federal Guidance Report 12 as well as by other authors who employed voxel phantoms for similar exposure scenarios.

Keywords: Dose coefficients; Effective dose; Electron; Environmental; Organ dose; Phantoms; Photon; Positron; Soil; Tissue dose.

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References

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