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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >Standardization of a (186)Re sodium perrhenate radiochemical solution using the TDCR method in liquid scintillation counting.
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Standardization of a (186)Re sodium perrhenate radiochemical solution using the TDCR method in liquid scintillation counting.

机译：在液体闪烁计数中使用TDCR方法标准化（186）Re高per酸钠放射化学溶液。

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摘要

Rhenium-186 has several current and potential applications in nuclear medicine. It decays by beta minus emissions mainly to the fundamental and the 137keV excited levels of (186)Os and by electron capture to (186)W. This paper describes the standardization of this radionuclide using the Triple to Double Coincidence Ratio model (TDCR) method. This is done by the calculation of the energy transferred to the scintillator by considering the various decay/de-excitation paths following the disintegration of the nuclide. The uncertainty on the detection efficiency is evaluated by stochastic methods by considering statistical distribution of theoretical and experimental parameters used in the calculation model. The detection efficiency was found to be higher than 97%, allowing a relative standard uncertainty on the activity determination of about 0.3%.
机译：hen186在核医学中有几种当前和潜在的应用。它会因β减去发射而衰减至（186）Os的基波和137keV激发能级，而由于电子捕获而衰减至（186）W。本文使用三重对重合比率模型（TDCR）方法描述了这种放射性核素的标准化。这是通过考虑核素分解后的各种衰变/去激发路径来计算转移到闪烁体的能量来完成的。通过考虑计算模型中使用的理论和实验参数的统计分布，通过随机方法评估检测效率的不确定性。发现检测效率高于97％，因此活性测定的相对标准不确定度约为0.3％。

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