An analysis of the results of the national assessments of gamma spectrometry of radionuclides, 2014-2021
10.13491/j.issn.1004-714X.2023.04.015
- VernacularTitle:2014—2021年参加全国放射性核素γ能谱分析能力考核结果分析
- Author:
Huan WANG
1
;
Qinghua MENG
1
;
Yaru SUN
1
;
Bin BAI
1
;
Yuxia KONG
1
;
Yongzhong MA
1
Author Information
1. Beijing Center for Disease Prevention and Control, Beijing 100013 China.
- Publication Type:OriginalArticles
- Keywords:
Gamma spectrometry;
Radionuclide;
Assessment
- From:
Chinese Journal of Radiological Health
2023;32(4):444-449
- CountryChina
- Language:Chinese
-
Abstract:
Objective To ensure the accuracy of gamma spectrometer in our laboratory for the analysis of radionuclides in samples and to improve the laboratory personnel’s ability to perform analyses of radionuclides. Methods Our laboratory had continuously participated in the national assessments of gamma spectrometry of radionuclides organized by the Chinese Center for Disease Control and Prevention. The samples were measured by a high-purity germanium gamma spectrometer (GEM-MX7080P4). An analysis was performed on the results of the gamma spectrometry assessments from 2014 to 2021. Results Our laboratory had an overall qualified rate of 100% (8/8) and an overall excellent rate of 39% (3/8) in the gamma spectrometry assessments from 2014 to 2021. The distribution ranges of RD, Z, U, and Urel for 28 measurements involving radionuclides 208Tl, 228Ac, 232Th, 40K, 238U, and 137Cs were −11.82% to 5.97%, −0.59 to 0.30, 0.02 to 0.92, and 4.33% to 10.49%, respectively. Conclusion The methods used in our laboratory for gamma spectrometry of radionuclides are accurate and the testing reports issued by our laboratory are reliable.
