A new software for rapid estimation of external dose to the public due to environmental radioactive contamination
10.3760/cma.j.cn112271-20230418-00125
- VernacularTitle:一种可快速估算环境放射性污染所致公众外照射剂量的新软件
- Author:
Jinghang WANG
1
;
Bo CHEN
;
Weihai ZHUO
Author Information
1. 复旦大学放射医学研究所，上海 200032
- Keywords:
Radioactive contamination;
External exposure;
Equivalent dose;
Effective dose;
Software tool
- From:
Chinese Journal of Radiological Medicine and Protection
2023;43(10):805-811
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To develop a software for rapid estimation of external dose to the public due to environmental radioactive contamination.Methods:Based on the data provided by the International Commission on Radiological Protection (ICRP), a database of the conversion coefficients of external dose rates for the public (adult and children of different age groups) under different environmental exposure scenarios was created. The programs of data search and calculation were written using Python language, and the software interface was designed using PyQt toolkit. To test the calculation results, the differences in external doses to different age groups of the public caused by most likely produced radionuclides under three environmental exposure scenarios were calculated, and their rationalities were analyzed.Results:The software can immediately complete the estimation of the organ equivalent doses and the effective dose due to the external exposure form environmental contamination by using a personal computer with a Windows system, and its results are reasonable. The test results showed that the younger the public members, the larger the organ dose and effective dose. For soil surface and water contaminated with 90Sr with the same activity concentration reaching radioactive equilibrium, the effective dose to infants was about 6.08 times and 2.51 times those to adults, respectively. Conclusions:The software developed in this study has the advantages of simple operation and fast calculation, and is suitable for rapid estimation of external dose to the public members of different age groups in emergency situations such as nuclear accidents.
