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arXiv 2006.07146nucl-thphysics.med-ph
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医用放射性核素核反应模型的统计描述:厚钒靶产生$^{47}$ Sc的典型情况

A Statistical Description of Nuclear Reaction Models for Medical Radionuclides: the Paradigmatic Case of $^{47}$Sc Production with Thick Vanadium Targets

M. P. Carante, F. Barbaro, L. Canton, A. Colombi, A. Fontana

摘要:

我们介绍了一种工具,以简单有效的方式描述已知的核反应代码的结果。它不同于通常选择特定单个模型而忽略其余模型的习惯使用。使用简单的统计程序允许引入一个更一般的理论评价与定量的不确定性,内置的理论模型的可变性上构建。我们应用该技术研究质子束撞击厚天然钒靶产生$^{47}$ Sc(一种在核医学中具有潜在治疗诊断应用的放射性核素)。我们发现一个能量范围内有显着的生产$^{47}$ Sc,和最低限度的共同生产$^{46}$ Sc,放射性污染物,必须尽可能避免,因为它的半衰期比$^{47}$ Sc(83.79天比3.3492天)。

英文摘要:

We have introduced a tool to describe in a simple and efficient way the outcomes of known nuclear reaction codes. It differs from the customary use where typically a specific single model is selected and the remaining disregarded. The use of simple statistical procedures allows to introduce a more general theoretical evaluation with quantitative uncertainty, constructed on the variability of the built-in theoretical models. We apply the technique to study the production of $^{47}$Sc (a radio-nuclide with potential theranostic applications in nuclear medicine) with a proton beam impinging on a thick natural Vanadium target. We find an energy range with significant production of $^{47}$Sc, and a minimum co-production of $^{46}$Sc, the radioactive contaminant that has to be avoided as much as possible because of its much longer half life than $^{47}$Sc (83.79 d vs 3.3492 d).

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