用液体闪烁技术-TDCR方法对使用进口226Ra溶液制备的2个密封平行的226Ra液体闪烁源进行了为期一个多月放射性活度测量.最后测量的结果与用γ谱仪方法给出的测量结果进行了比对,发现两组数据在1.25%和1.60%的误差范围,测量的结果令人满意.研究表明:液体闪烁技术-TDCR方法是测量226Ra溶液的一种快速、准确、可靠的测量方法.%Introduction of used import 206Ra solution preparation for 2 parallel 226Ra liquid scintilliation source by Liquid Scintillation Technique - TDCR method absolute measurement. following measmed Radioative in ten to forty days. The Last result of measured compared into measured result import 226 Ra solution obtained by using .γ spectrum system. Discover two data deviation within 1.25 ％ and 1. 60 ％, The measured result very satisfied。research make know: make use of Liquid Scintillation Technique -TDCR method absolute measured 226Ra solution should be added a methnod of measurement of in rapid accurate reliable.
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