| LUO Li-juan,CHEN Bo,ZHUO Wei-hai,et al.Development of a software for predicting the effects of nuclear and radiological terrorism events in city areas[J].Chinese Journal of Radiological Medicine and Protection,2011,31(2):206-209 |
| Development of a software for predicting the effects of nuclear and radiological terrorism events in city areas |
| Received:August 01, 2010 |
| DOI：10.3760/cma.j.issn.0254-5098.2011.02.024 |
| KeyWords:Nuclear Radiation Terrorism events Radioactive pollution Dose Geographic information system |
| FundProject:上海市环境保护科研项目［沪环科(08)37］ |
| Author Name | Affiliation | | LUO Li-juan | College of Environmental Sciences and Engineering, Donghua University, 200051 Shanghai, China | | CHEN Bo | College of Environmental Sciences and Engineering, Donghua University, 200051 Shanghai, China | | ZHUO Wei-hai | College of Environmental Sciences and Engineering, Donghua University, 200051 Shanghai, China | | LU Shu-yu | College of Environmental Sciences and Engineering, Donghua University, 200051 Shanghai, China |
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| Abstract:: |
| Objective To develop a new software system that can directly display the predicted results on an electronic map,in order to get a directly perceived understanding of the affected areas of nuclear and radiological terrorism events in city areas. Methods Three scenarios of events including spreading radioactive materials, dirty bomb attack, and explosion or arson attacks on the radiation facilities were assumed. Gaussian diffusion model was employed to predict the spread and deposition of radioactive pollutants, and both the internal and external doses were estimated for the representative person by using the corresponding dose conversion factors. Through integration of the computing system and Mapinfo geographic information system(GIS), the predicted results were visually displayed on the electronic maps of a city. Results The new software system could visually display the predicted results on the electronic map of a city, and the predicted results were consistent with those calculated by the similar software Hotspot. The deviation between this system and Hotspot was less than 0.2 km for predicted isoplethic curves of dose rate downwind. Conclusions The newly developed software system is of the practical value in predicting the effects of nuclear and radiological terrorism events in city areas. |
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