论文标题
改进的测量低浓度赖以及其应用于超级Kamiokande Gadolinium项目的方法
Improved method for measuring low concentration radium and its application to the Super-Kamiokande Gadolinium project
论文作者
论文摘要
使用称为“ Empore rad rad Disk”的分子识别树脂提取化学提取，以提高对低浓度的镭（RA）的敏感性。与以前的方法相比，提取过程速度提高了三倍，$^{226} $ ra的回收率也从81 $ \ pm $ 4％$ \ $> $> $ 99.9％提高。使用高纯净仪锗检测器实现了10 $^{ - 1} $ MBQ水平的灵敏度。应用了此改进的方法来确定$^{226} $ ra中的gd $ _2 $（因此$ _4 $）$ _ 3 {\ cdot} $ 8H $ _2 $ o，该$ 8H $ _2 $ o将在Super-Kamiokande Gadolinium项目中使用。在本文中报告了改进和测量结果。
Chemical extraction using a molecular recognition resin named "Empore Radium Rad Disk" was developed to improve sensitivity for the low concentration of radium (Ra). Compared with the previous method, the extraction process speed was improved by a factor of three and the recovery rate for $^{226}$Ra was also improved from 81$\pm$4% to $>$99.9%. The sensitivity on the 10$^{-1}$ mBq level was achieved using a high purity germanium detector. This improved method was applied to determine $^{226}$Ra in Gd$_2$(SO$_4$)$_3{\cdot}$8H$_2$O which will be used in the Super-Kamiokande Gadolinium project. The improvement and measurement results are reported in this paper.
