Measurement of the 117mSn, 125mTe, 135mBa and 195mPt half-lives for reactor dosimetry application

IF 1.6 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2024-09-07 DOI:10.1016/j.apradiso.2024.111512

引用次数: 0

Abstract

Nuclear isomers are investigated to perform precise epithermal neutron dosimetry. One key physical property for reactor dosimetry is the precise knowledge of the isomer half-life. In the list of potential candidates, the half-life values available in the literature or in the recommended database for reactor dosimetry for ^117mSn, ^125mTe, ^135mBa and ^195mPt show some discrepancy. New half-life measurements are presented in this work. Those isomers were produced by neutron activation at the JSI TRIGA Reactor from tin, tellurium, barium (all three of them enriched in their parent of interest) and natural platinum dosimeters. Precise half-lives measurements were performed at the MADERE platform using gamma and X-ray spectrometry. Special care has been taken on the uncertainty determinations.

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测量反应堆剂量测定应用中的 117mSn、125mTe、135mBa 和 195mPt 半衰期

研究核异构体是为了进行精确的表热中子剂量测定。反应堆剂量测定的一个关键物理特性是精确了解异构体的半衰期。在潜在候选清单中，文献或反应堆剂量测定推荐数据库中关于 117mSn、125mTe、135mBa 和 195mPt 的半衰期值存在一定差异。本文介绍了新的半衰期测量结果。这些异构体是由锡、碲、钡（三者都富含相关母体）和天然铂剂量计在 JSI TRIGA 反应堆中通过中子活化产生的。在 MADERE 平台上使用伽马和 X 射线光谱仪进行了精确的半衰期测量。对不确定性的确定也特别谨慎。

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.