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[目的]研制建立核和辐射卫生监测公众内照射剂量估算软件。[方法]使用POWERBUILDER 11.5,运用IAEA-TECDOC-1162出版物中有关食入和吸入途径内照射剂量估算方法,结合江苏省田湾核电站周围人群健康背景资料编制软件。[结果]建成核和辐射卫生监测公众内照射剂量估算软件,并运用软件计算2010年度田湾核电站30km半径范围内食品中137Cs致公众内照射集体有效剂量为5.05人.mSv。2011年应对日本核电站泄漏辐射监测期间,南京地区蔬菜中131I致公众内照射有效剂量最大为2.2×10-4mSv。[结论]该软件可满足核电站正常运行和事故状态下,食入和吸入两种途径公众内照射待积有效剂量的快速计算评价。为保证评价准确性,需要对核电站地区人口结构和饮食结构资料进行定期调查。
[Objective] To develop and establish a public internal radiation dose estimation software for monitoring nuclear and radiation health. [Method] Using POWERBUILDER 11.5, the method of IAEA-TECDOC-1162 publication was used to estimate the dose of radiation in the ingestion and inhalation routes and to compile the software based on the health background information of people around Tianwan Nuclear Power Station in Jiangsu Province. [Results] The public internal radiation dose estimation software for nuclear and radiation health monitoring was established and the collective effective dose of public internal irradiation caused by 137Cs in food within 30km of Tianwan Nuclear Power Station in 2010 was calculated by software to be 5.05 mSv. In response to the Japanese nuclear power station leak radiation monitoring in 2011, the effective dose of 131I caused by public exposure to vegetables in Nanjing was 2.2 × 10-4mSv. [Conclusion] The software can meet the rapid calculation and evaluation of effective dose of public internal radiation to be eaten and inhaled both in normal operation and accident status of nuclear power station. In order to ensure the accuracy of evaluation, periodic surveys on the population structure and dietary structure information of the nuclear power plant area are required.