The EXPURT model for calculating external gamma doses from deposited material in inhabited areas
| Autor: | L.N. Singer, J. Brown, J.A. Jones |
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| Rok vydání: | 2003 |
| Předmět: |
Radioactive Fallout
Materials science Health Toxicology and Mutagenesis Rain Poaceae Radiation Dosage Trees Environmental Chemistry Deposition (phase transition) Humans Soil Pollutants Radioactive Waste Management and Disposal Decontamination Environmental modelling Computer simulation Construction Materials General Medicine Mechanics Environmental Exposure Models Theoretical Pollution Air Pollutants Radioactive Cesium Radioisotopes Gamma Rays Air Pollution Indoor Dose rate |
| Zdroj: | Journal of environmental radioactivity. 85(2-3) |
| ISSN: | 0265-931X |
| Popis: | EXPURT, NRPB's model for calculating external γ doses in inhabited areas, was originally developed in the mid-1980s. Deposition on surfaces in the area, the subsequent transfer of material between different surfaces or its removal from the system, and dose rates in various locations from material on the different surfaces are modelled. The model has been updated to take account of more recent experimental data on the transfer rates between surfaces and to make it more flexible for use in assessing dose rates following an accidental release. EXPURT is a compartmental model and models the transfer of material between the surfaces using a set of first order differential equations. It enables the impact of the decontamination of surfaces on doses and dose rates to be explored. The paper describes the EXPURT model and presents some preliminary results obtained using it. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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