| Fu Ximing,Chang Chunhui,Liu Yulong,Wu Zhen,Chen Huifang,Lei Cuiping,Yuan Long.Physical dose estimation for an accidental exposed person in industrial γ-ray flaw detection[J].Chinese Journal of Radiological Medicine and Protection,2021,41(5):380-384 |
| Physical dose estimation for an accidental exposed person in industrial γ-ray flaw detection |
| Received:July 09, 2020 |
| DOI：10.3760/cma.j.issn.0254-5098.2021.05.011 |
| KeyWords:Industrial radiography Physical dose estimation Monte Carlo simulation Local dose distribution |
| FundProject: |
| Author Name | Affiliation | E-mail | | Fu Ximing | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Chang Chunhui | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Liu Yulong | Department of Nuclear Emergency Center, Second Affiliated Hospital of Soochow University, Suzhou 215004, China | | | Wu Zhen | Nuctech Company Limited, Beijing 100084, China | | | Chen Huifang | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Lei Cuiping | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Yuan Long | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | yuanlong@nirp.chinacdc.cn |
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| Abstract:: |
| Objective To estimate the physical dose of an over exposed person working for industrial radiography. Methods The main exposure parameters were obtained. The exposure duration was 8 min. The exposure pattern was external exposure by isotropic point radioactive source. The radioactive activity was 2.183 TBq. In the present calculation, the Chinese reference adult voxel phantom was used, and the Monte Carlo simulation was performed using the program based on the secondary development of Geant4 to obtain the absorbed dose of each part of the victim. Results The dose distribution in the victim's hands was obtained. The doses to most areas of the palm were 2-10 Gy, and the doses to the fingers were 10-20 Gy. The equivalent doses to 23 tissues or organs of the exposed person were estimated to be in the range of 0.012-0.207 Gy. Conclusions The physical dose estimation method could evaluate rapidly the local dose distribution of the victim's key exposed body parts, and thus provide an important reference for medical treatment. |
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