Neutron-induced fission studies of the NTUA at the neutron facility of NCSR “Demokritos” :The case of the 234U(n,f) cross section at the first chance fission threshold

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

Applied Radiation and Isotopes Pub Date : 2025-09-12 DOI:10.1016/j.apradiso.2025.112113

M. Diakaki , S. Kopanos , M. Kokkoris , N. Kyritsis , V. Michalopoulou , K. Kaperoni , M. Mavromatakou-Karamitsiou , N. Giannakou , R. Vlastou , A. Lagoyannis , M. Axiotis

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引用次数: 0

Abstract

Studies of neutron-induced fission reaction cross section data are required in nuclear reactor applications as well as for the deeper understanding of the fission process. To this end, an extensive study of neutron-induced fission cross-sections at and above the fission threshold of various actinides has been carried out at the neutron beam facility of the National Center for Scientific Research “Demokritos” by the Nuclear Physics Group of the National Technical University of Athens (NTUA), using quasi-monoenergetic neutron beams and Micromegas detectors. An overview of the above-mentioned measurements at this facility is given in this manuscript, along with new data on the ²³⁴U(n,f) reaction cross section in the energy range 450-800 keV.

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NCSR“Demokritos”中子设施中NTUA的中子诱导裂变研究：第一次裂变阈值处234U（n,f）截面的情况

中子诱导裂变反应截面数据的研究是核反应堆应用以及对裂变过程的深入理解所必需的。为此目的，雅典国立技术大学（NTUA）核物理小组在国家科学研究中心“Demokritos”的中子束设施上，使用准单能中子束和微巨气体探测器，对各种锕系元素在裂变阈值及以上的中子诱导裂变截面进行了广泛的研究。本文概述了在该设备上的上述测量结果，并提供了能量范围为450-800 keV的234U（n,f）反应截面的新数据。

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.