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| A Comparison of Activity Analysis of γ Radionuclides in Water |
| YANG Zhi-jie1,2,LIU Hao-ran2,LIANG Jun-cheng2,ZHU Da-bin3,WANG Nan-ping1 |
1. China University of Geosciences, Beijing 100083, China
2. National Institute of Metrology, Beijing 100029, China
3. Suzhou Nuclear Power Research Institute, Suzhou, Jiangsu 215004, China
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Abstract In order to examine the accuracy and consistency of measurement results in measurement laboratories, measurement comparison had been organized to measure the same sample with the same properties between multiple laboratories. After the comparison, a full-factor check for levels of the measuring instruments, measuring personnel, operating procedures and daily quality control of each participating laboratory had been achieved. From 2017 to 2018, the comparison of radioactivty analysis of the gamma radionuclides in the water of China General Nuclear Power Group was organized and implemented. 15 laboratories from 6 major nuclear power bases participated in the comparison, and submitted 23 comparison results. The data were analyzed according to the relative deviation comparison method, En evaluation method and the Z-scores method. Finally, in order to compare the advantages and disadvantages of the comparison results, combined with the special situation in the field of nuclear power, the eligibility of the comparison results had been distinguished based on the En evaluation and Z-scores comprehensive evaluation method. Based on the evaluation criteria, the pass rate of the nuclide 57Co, 137Cs and 241Am is 95.7%; the pass rate of the nuclide 109Cd and 60Co is 91.3%.
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Received: 21 January 2019
Published: 01 September 2019
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［1］张淑蓉. 核电站低水平液体流出物的γ谱分析［J］. 中国辐射卫生, 1992, (1): 46-47.
Zhang S R. γ-spectrum analysis of low-level liquid effluent from nuclear power plants［J］. Chinese Journal of Radiological Health, 1992, (1):46-47.
［2］苏琼, 郭剑英, 邵宪章,等. 大亚湾核电厂应急计划区内的食品和水样品的γ谱法检测及其评价［M］. 北京:原子能出版社, 1999: 1-8.
［3］国家质量监督检验检验总局. JJF1117-2010 计量比对［S］. 2010.
［4］国家质量监督检验检疫总局. GB18871-2002 电离辐射防护与辐射源安全基本标准［S］. 2002.
［5］谭金波, 李彦禄, 徐春长. 高纯锗γ谱仪活度测量标准装置［J］. 计量学报, 2000, 21(3): 232-238.
Tan J B, Li Y L, Xu C C. HPGe gamma-ray spectrometer standard for activity measurement［J］. Acta Metrologica Sinica, 2000, 21(3):232-238.
［6］LNE-LNHB/CEA, Table de Radionucleides 2017［EB/OL］. http://www.nucleide.org/toc.htm.
［7］周强, 拓飞. 水样品放射性核素γ能谱分析的比对与评价［J］. 中华放射医学与防护杂志, 2017, 37(9): 700-704.
Zhou Q, Tuo F. Intercomparison and evaluation onγ-spectrometry of radionuclides in water［J］. Chinese Journal of Radiological Medicine and Protection, 2017, 37(9): 700-704.
［8］刁立军, 孟 军,陈细林,等. 环境水平样品放射性活度γ能谱法测量分析比对［R］. 北京: 中国原子能科学研究院年报, 2011: 141-142.
［9］郝润龙、谭金波、唐贞信. 环境放射性样品的锗γ谱测量比对［J］. 辐射防护, 1993, 13(4): 241-253.
Hao R L, Tan J B, Tang Z X. Intercomparison of samples radioactivity measurement of environmental by Ge gamma-ray spectrometer［J］. Radiation Protection, 1993, 13 (4): 241-253.
［10］拓飞. 2008年全国放射性核素γ能谱分析比对［J］. 中华放射医学与防护杂志, 2010, 30(3): 343-345.
Tuo F. Nationwide intercomparison of radionuclide by γ spectrometry analyses in 2008［J］. Chinese Journal of Radiological Medicine and Protection, 2010, 30(3):343-345.
［11］中国合格评定国家认可委员会.CNAS-GL002 能力验证结果的统计处理和能力评价指南［S］. 2018.
［12］中国国家标准化管理委员会.GB/T28043利用实验室间比对进行能力验证的统计方法［S］. 2011. |
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2019, Vol. 40 
