Results of the nationwide assessment of radionuclide γ spectrum measurement in 2018—2020 / 中国辐射卫生

ABSTRACT

@#<b>Objective</b> To ensure the effectiveness and improve the capacity of laboratories in the measurement of γ spectra of radionuclides. <b>Methods</b> A statistical analysis was performed using relative deviation, accuracy, precision, and relative combined uncertainty for the nationwide assessment of radionuclide γ spectrum measurement. <b>Results</b> 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 |Z_test|≤1 and U_test≤2.58 in 2018, |Z_test|≤1 and U_test≤1 in 2019, and U_test≤1 and U_rel≤20% in 2020. <b>Conclusion</b> Our laboratory employs the correct method for radionuclide γ spectrum measurement, and the analysis data are accurate and reliable.