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| Comparison and analysis of the intercomparison results of national personal dose monitoring from 2016 to 2018 |
| ZHAI Hezheng1, DU Zhongqing2, WU Xiangjun1, WANG Qiaojuan1, ZHANG Wenyi1, WANG Xin1, RUAN Shuzhou1, WU Quan1 |
1. Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Tianjin 300192 China;
2. Tianjin Center for Disease Control and Prevention |
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Abstract Objective To participate in the national ability assessment of personal dose monitoring, understand the performance of personal dose monitoring system and the level of technical personnel, and improve the ability of personal dose monitoring and the accuracy of data.Methods According to GBZ 207—2016 and the evaluation plan, seven groups of personal dosimeters were prepared to carry out personal dose monitoring ability assessment and data analysis in 2016—2018, the uncertainty of the measurement results was evaluated and the results were compared with the reference value.Results The single group performance results of personal dose monitoring ability assessment were −0.02～0.20, and the comprehensive performance result was 0.14, which was qualified in 2016, and the single group performance results of personal dose monitoring ability assessment were −0.01～0.02, and the comprehensive performance result was 0.02, which was excellent in 2017. At last, the single group performance results of personal dose monitoring ability assessment were −0.01～0.02, the comprehensive performance result was 0.01 and the result is excellent in 2018.Conclusion The data processing of personal dose monitoring in our laboratory was standardized, and the results were accurate and reliable, which met the requirements of relevant national standards. It is necessary and important to improve the ability of personal dose monitoring, strengthen quality control and actively participate in personal dose ability assessment.
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Received: 16 November 2019
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