| RN-FD型固体氡气源的稳定性及应用分析 |
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| 引用本文： | 李朝明,杨志坚,褚金学,吴谋.RN-FD型固体氡气源的稳定性及应用分析[J].震灾防御技术,2018,13(1):114-124. |
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| 作者姓名： | 李朝明 杨志坚 褚金学 吴谋 |
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| 作者单位： | 1.中国地震局滇西地震预报实验场, 云南大理 671000 |
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| 基金项目： | 地震行业科研专项（201308006） |
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| 摘 要： | 对测氡仪器进行精确校准是氡测量工作中的重要环节，固体氡气源的稳定性、可靠性在校准中则显得至关重要。本文通过分析RN-FD型固体氡气源对闪烁室K值的稳定性实验结果，认为:RN-FD型固体氡气源标称的浓度值与实际浓度值不一致，标称浓度值只是理论浓度值而不是实际浓度值，需重新刻度才能使用；RN-FD型固体氡气源抽气循环时间不同则浓度不同，但抽气循环时间固定，观测结果比较稳定；对于没有α检查源的台站，RN-FD型固体氡气源可用于氡观测仪器坪区检查。
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| 关 键 词： | 氡观测 固体氡气源 测氡仪校准 标称浓度 稳定性 |
| 收稿时间： | 2017/5/26 0:00:00 |
Stability and Practicability Analysis of RN-FD Type Solid Radon Source |
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| Li Zhaoming,Yang Zhijian,Chu Jinxue and Wu Mou.Stability and Practicability Analysis of RN-FD Type Solid Radon Source[J].Technology for Earthquake Disaster Prevention,2018,13(1):114-124. |
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| Authors: | Li Zhaoming Yang Zhijian Chu Jinxue and Wu Mou |
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| Institution: | 1.Western Yunnan Earthquake Prediction Study Area, China Earthquake Administration, Dali 671000, Yunnan, China2.Midu Seismic Station, Yunnan Earthquake Agency, Midu 675600, Yunnan, China |
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| Abstract: | The precise calibration of observing instruments plays an important part in the measurement of radon. The stability and reliability of the solid radon source are very crucial in the calibration. In this paper, through the analysis of the stability of the scintillation chamber K value derived from the RN-FD solid radon source, we found that the nominal value of the concentration of RN-FD solid radon source was not consistent with the actual value. The actual concentration value needs to rescale before to use. The concentration difference waw caused by different pumping cycle time. When the pumping cycle time is fixed the observed results are stable. For a station without the α-check-source, the RN-FD solid radon source can be applied as the plateau area check of the radon detector. |
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| Keywords: | Radon observation Solid radon source Calibration of radon detector Nominal concentration Stability |
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