A modelling approach to defining radiochemical separation requirements for gamma spectrometry analysis

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-10-08 DOI:10.1016/j.radphyschem.2025.113348

T.C. Stokes , M.A. Goodwin , M.J. Jackson , A.J. Boston

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引用次数: 0

Abstract

A novel application of the GEANT4 toolkit has been developed to assess the impact of various radiochemical separation outcomes on the detection limit for particular radionuclides of interest. A high-purity germanium detector has been modelled using the toolkit and validated using experimental measurements with software developed to perform automated spectral analysis. This software has been shown to be capable of simulating high-purity germanium spectra with varying activities of target analyte(s) and impurities. The time taken to perform the separation is also considered. The primary product of this analysis is a design space for radiochemical separation, which contributes to the definition of requirements for chemical yield, purity, and speed. This allows for an assessment, on an individual sample basis, on which process improvements are likely to result in the greatest measurement benefit. Further uses of this work include the development of radiochemical separation methods, the utility of further sample purification, and evaluation of the impact of individual impurity radionuclides. Specific theoretical and applied examples have been analysed and are reported in this work.

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定义伽马能谱分析的放射化学分离要求的建模方法

开发了GEANT4工具包的新应用程序，以评估各种放射化学分离结果对感兴趣的特定放射性核素的检测限的影响。高纯度锗探测器已使用工具包建模，并使用实验测量验证了开发的软件进行自动光谱分析。该软件已被证明能够模拟具有不同活性的目标分析物和杂质的高纯度锗光谱。还考虑了进行分离所需的时间。该分析的主要产品是放射化学分离的设计空间，它有助于定义化学产率，纯度和速度的要求。这允许在单个样本的基础上进行评估，在此基础上，过程改进可能会产生最大的度量效益。这项工作的进一步用途包括发展放射化学分离方法，进一步样品纯化的效用，以及评估单个杂质放射性核素的影响。本文分析并报道了具体的理论和应用实例。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.