Reference-free measurement of photon emission intensities in the decay of standard radionuclides

IF 1.8 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2025-09-03 DOI:10.1016/j.apradiso.2025.112159

Ablaihan Utepov, Marie-Christine Lépy, Yves Ménesguen, Lucille Chambon

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引用次数: 0

Abstract

Reliable X-ray emission intensities are essential for quantitative material analysis using X-ray spectrometry and for the efficiency calibration of energy-dispersive spectrometers. In order to improve the reliability of data, reference-free measurements were performed to determine X-ray emission intensities, along with their associated uncertainties, for a set of standard radionuclides in the energy range from 5.4 keV to 53.13 keV. Partial K X-ray emission intensities were determined for nine radionuclides, resulting in total K emission intensities, I_XK, of 24.06(49)% for ⁵⁴Mn, 27.59(48)% for ⁵⁵Fe, 55.8(10)% for ⁵⁷Co, 37.4(9)% for ⁶⁵Zn, 60.0(7)% for ⁸⁵Sr, 59.0(7)% for ⁸⁸Y, 100.5(15)% for ¹⁰⁹Cd, 117.3(12)% for ¹³³Ba and 77.7(9)% for ¹³⁹Ce. In addition, γ-ray emission intensities were measured as 8.77(12)% for the 14.41 keV transition of ⁵⁷Co and 2.199(29)% for the 53.16 keV transition of ¹³³Ba. The results are in good agreement with existing data, although some differences were observed for a few radionuclides. For all investigated radionuclides, a fully traceable and reliable uncertainty budget has been provided.

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标准放射性核素衰变中光子发射强度的无参考测量

可靠的x射线发射强度对于使用x射线光谱进行定量物质分析和能量色散光谱仪的效率校准至关重要。为了提高数据的可靠性，对一组能量在5.4 keV至53.13 keV之间的标准放射性核素进行了无参考测量，以确定x射线发射强度及其相关的不确定度。测定了9种放射性核素的部分K x射线发射强度，得到54Mn的总K发射强度IXK为24.06(49)%，55Fe为27.59(48)%，57Co为55.8(10)%，65Zn为37.4(9)%，85Sr为60.0(7)%，88Y为59.0(7)%，109Cd为100.5(15)%，133Ba为117.3(12)%，139Ce为77.7(9)%。此外，57Co的14.41 keV跃迁的γ射线发射强度为8.77(12)%，133Ba的53.16 keV跃迁的γ射线发射强度为2.199(29)%。这些结果与现有的数据非常一致，尽管对一些放射性核素观察到一些差异。对于所有已调查的放射性核素，提供了完全可追溯和可靠的不确定性预算。

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

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. 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. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.