欧洲核子研究中心处理LHC束流倾倒系统的一种新的非破坏性分析方法

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

Applied Radiation and Isotopes Pub Date : 2025-06-28 DOI:10.1016/j.apradiso.2025.112004

Nabil Menaa, Patrycja Dyrcz, Ana-Paula Bernardes, Marco Calviani, Gerald Dumont, Angelo Infantino, Matteo Magistris, Chris Theis

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引用次数: 0

摘要

在长停堆（LS2）期间，更换了大型强子对撞机（LHC）的束流阻挡器。决定将提取的两个LHC束流转储（也称为外部喷射束流目标转储（TDE））作为放射性废物消除。对倾倒场进行放射性特征鉴定是对放射性废物贮存库进行适当分类和随后接受的一个至关重要和必要的步骤。接受标准要求准确申报易测放射性核素的活度值。本文概述了与高接触剂量率（达到2msv /h）和ETM放射性核素的不均匀分布有关的挑战。这项工作提出了一种新的量化方法来解决这些挑战。所采用的开发方法可作为应对其他加速器和核设施中类似挑战的指南。

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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A novel non-destructive assay methodology for the disposal of the LHC beam dumping system at CERN

During the Long Shut-down (LS2), the beam stopper of the Large Hadron Collider (LHC) was replaced. It was decided to eliminate the extracted two LHC beam dumps, also known as Target Dump for Ejected Beam External (TDE), as radioactive waste. The radiological characterization of the dumps is a vital and a necessary step for the proper classification and subsequent acceptance by the radioactive waste repository. The acceptance criteria require accurate declaration of the activity values of the Easy-to-Measure (ETM) radionuclides. This paper provides an overview of the challenges related to the high contact dose rates (reaching 2 mSv/h) and the heterogeneous distribution of the ETM radionuclides. This work proposes a novel quantification methodology that addresses those challenges. The developed methodologies followed can serve as a guide for addressing similar challenges in other accelerator and nuclear facilities.

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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.