| 87Kr活度测量中干扰核素的扣除 |
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| 引用本文： | 李奇,王世联,解峰,李琦,常永福.87Kr活度测量中干扰核素的扣除[J].核电子学与探测技术,2006,26(6):926-928. |
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| 作者姓名： | 李奇 王世联 解峰 李琦 常永福 |
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| 作者单位： | 西北核技术研究所,陕西,西安69信箱17分箱,710613;西北核技术研究所,陕西,西安69信箱17分箱,710613;西北核技术研究所,陕西,西安69信箱17分箱,710613;西北核技术研究所,陕西,西安69信箱17分箱,710613;西北核技术研究所,陕西,西安69信箱17分箱,710613 |
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| 摘 要： | 用内充气正比计数管测量短寿命核素87Kr活度中,存在气体核素85mKr和125Xe的干扰,且在制源过程中无法将杂质核素分离出去.根据各核素半衰期不同的特点,对样品进行跟踪测量,用加权最小二乘法求解线性方程组的系数对干扰气体进行了扣除,准确测量了87Kr的活度.
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| 关 键 词： | 87Kr 活度 最小二乘法 |
| 文章编号： | 0258-0934(2006)06-0926-03 |
| 修稿时间： | 2005年9月5日 |
Deduction of interfering nuclides in radioactive measurement of 87Kr |
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| LI Qi,WANG SHI-lian,XIE Feng,LI Qi,CHANG Yong-fu.Deduction of interfering nuclides in radioactive measurement of 87Kr[J].Nuclear Electronics & Detection Technology,2006,26(6):926-928. |
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| Authors: | LI Qi WANG SHI-lian XIE Feng LI Qi CHANG Yong-fu |
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| Abstract: | The radioactivity of short-lived nuclide ~(87)Kr is interfered by ~(85m)Kr and ~(125)Xe when it is measured by internal gas proportional counting.It is difficult to separate interfering nuclides from the gas sample.In this work,a series of data were measured according to the characteristic that different nuclides have different half-life,the radioactivity of ~(87)kr is obtained by calculating coefficients of linear equations by the least square method. |
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| Keywords: | ~(87)Kr radioactivity least square method |
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