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| Results of the nationwide assessment of radionuclide γ spectrum measurement in 2018—2020 |
| DONG Qian, LOU Hailin, SUN Xiaoyu, LU Ying, TU Xingming, WANG Shaolin, ZHANG Zhuangzhuang |
| China Institute of Atomic Energy, Beijing 102413 China |
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Abstract Objective To ensure the effectiveness and improve the capacity of laboratories in the measurement of γ spectra of radionuclides.Methods A statistical analysis was performed using relative deviation, accuracy, precision, and relative combined uncertainty for the nationwide assessment of radionuclide γ spectrum measurement.Results In the assessment from 2018 to 2020, our laboratory showed qualified or above results, and the performance in 2019 was excellent. The maximum relative deviation of 11 measurements from 2018 to 2020 was 18.01%. The assessment showed |Ztest|≤1 and Utest≤2.58 in 2018, |Ztest|≤1 and Utest≤1 in 2019, and Utest≤1 and Urel≤20% in 2020.Conclusion Our laboratory employs the correct method for radionuclide γ spectrum measurement, and the analysis data are accurate and reliable.
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Received: 27 January 2022
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