| 氚活度浓度标准装置的建立 |
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| 引用本文： | 冯梅,韦应靖,李德红,王勇,张庆利,王明亮.氚活度浓度标准装置的建立[J].辐射防护,2020,40(4):271-277. |
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| 作者姓名： | 冯梅 韦应靖 李德红 王勇 张庆利 王明亮 |
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| 作者单位： | 1.中国辐射防护研究院,山西 太原 030006;2.中国计量科学研究院,北京 100013 |
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| 基金项目： | 国家重点研发计划(NQI)项目(课题编号:2017YFF0206304)。 |
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| 摘 要： | 为解决国内气载氚监测仪量值传递问题,建立了氚活度浓度标准装置,并对其性能进行了测试。经过实验测试,其重复性为0.97%,稳定性为1.1%,可提供的氚活度浓度范围为5.0×10^4~2.0×10^8 Bq·m^-3,扩展不确定度U r=4.6%~5.0%(k=2)。该氚活度浓度标准装置已被授权为社会公用计量标准,可以承担国内氚监测仪的量值传递工作。
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| 关 键 词： | 氚活度浓度 氚监测仪 标准装置 量值传递 |
| 收稿时间： | 2019-05-14 |
Establishment of tritium activity concentration standard device |
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| FENG Mei,WEI Yingjing,LI Dehong,WANG Yong,ZHANG Qingli,WANG Mingliang.Establishment of tritium activity concentration standard device[J].Radiation Protection,2020,40(4):271-277. |
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| Authors: | FENG Mei WEI Yingjing LI Dehong WANG Yong ZHANG Qingli WANG Mingliang |
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| Affiliation: | 1.China Institute for Radiation Protection, Taiyuan 030006;2.National Institute of Metrology, Beijing 100013 |
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| Abstract: | In order to solve the problem of the value transfer of tritium-in-air monitors in China,tritium activity concentration standard device was built up and the performance of the standard device was tested in laboratory. Testing results show that the device has a repeatability of 0.97%, a stability of 1.1%, activity concentration ranges between 5.0×104 Bq·m-3 to 2.0×108 Bq·m-3, and the relative extended uncertainty of 4.6%-5.0% (k=2) was achieved. This tritium activity concentration standard device has been authorized as social public measurement standard, which could be used for value transferring of tritium-in-air monitors in China. |
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| Keywords: | tritium activity concentration tritium-in-air monitor standard device value transfer |
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