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开环式测量氡析出率

Yan-liang TAN,De-tao XIAO,Gui-zhi ZHAO,Qing-zhi ZHOU,Tian XIAO,Yi ZHOU

Jiliang Xuebao/Acta Metrologica Sinica（2013）

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Abstract
对开环式测量氡析出率方法进行了验证,测得的介质表面氡析出率与参考值符合得较好.通过理论分析得到了集氡罩内的氡浓度趋于恒定值的时间表达式；提出了采用底面积较大的集氡罩,并加一调节阀来调低泵的流量的方法来提高集氡罩内的氡浓度,减小RAD7测量时的统计涨落.
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Key words
Metrology,Open loop,Radon exhalation rate
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