Effective dose rate coefficients for exposure to contaminated soil
| Autor: | M. M. Hiller, Keith F. Eckerman, C. E. Easterly, Shaheen A Dewji, Nolan E. Hertel, K. G. Veinot, Michael B. Bellamy, Ryan P. Manger |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Photon Adolescent Physics::Medical Physics Biophysics Effective dose (radiation) 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Positron Humans Soil Pollutants Radioactive Positron emission Child Radiometry General Environmental Science Radionuclide Radiation business.industry Phantoms Imaging Radiochemistry Bremsstrahlung Infant Newborn Infant Environmental exposure Radiation Exposure Computational physics 030220 oncology & carcinogenesis Child Preschool Environmental science Radiation protection business |
| Zdroj: | Radiation and environmental biophysics. 56(3) |
| ISSN: | 1432-2099 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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