| 张庆,张京,李文红,徐翠华.建筑材料样品中放射性核素γ能谱测量比对[J].中华放射医学与防护杂志,2009,29(4):435-437 |
| 建筑材料样品中放射性核素γ能谱测量比对 |
| Gamma spectrometry comparison on the measurements of radionuclides in building samples |
| 投稿时间：2008-09-08 |
| DOI： |
| 中文关键词: 建筑材料 放射性核素 γ能谱分析 测量比对 |
| 英文关键词:Building materials Radionuclides Gamma spectrometry analysis Measurement comparison |
| 基金项目: |
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| 摘要点击次数: 3037 |
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| 中文摘要: |
| 目的 通过全国省级疾病预防控制中心γ能谱实验室对建筑材料中放射性核素的测量比对,检验其测量结果的精确度和准确度,提高其对放射性核素的分析水平。方法 依据IAEA 2002年放射性核素国际比对方法,于2007年组织了15个单位对我国建筑材料样品中放射性核素γ能谱测量比对。结果 各参加比对单位提供的测量值与参考值符和较好,其中有50%的参加单位相对偏差小于5%,相对偏差小于10%的单位超过80%。结论 γ能谱分析建筑材料样品中放射性核素含量的方法是准确可靠的,可以满足GB 6566-2001《建筑材料放射性核素限量》标准的要求。 |
| 英文摘要: |
| Objective To organize measurement comparison among provincial CDC gamma spectrometry laboratory for verification of the precision and accuracy of the measuring results from each laboratory and to improve the ability and level for radionuclides measurement in building materials. Methods The method for gamma spectrometry measurement comparison was referred to the method of IAEA international comparison in 2002. Results The results of these labs in this comparison agreed with the reference results well. About 50% labs' relative biases were less than 5%, over 80% labs were less than 10%. Conclusions The results of this comparison showed that the analysis method for the radioactivity content in building materials by gamma spectrometry in each lab was credible and meet the request of the standard GB 6566-2001 "Radioactive Nuclide Limit for Building Materials". |
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