Neutron transmission measurement of thick natFe targets at nELBE

IF 1.9 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Annals of Nuclear Energy Pub Date : 2025-03-22 DOI:10.1016/j.anucene.2025.111363

A.R. Junghans , R. Beyer , R. Capote , D. Bemmerer , T. Hensel , T. Kögler , S.E. Müller , K. Römer , K. Schmidt , R. Schwengner , S. Turkat , J. Turko , S. Urlaß

{"title":"Neutron transmission measurement of thick natFe targets at nELBE","authors":"A.R. Junghans , R. Beyer , R. Capote , D. Bemmerer , T. Hensel , T. Kögler , S.E. Müller , K. Römer , K. Schmidt , R. Schwengner , S. Turkat , J. Turko , S. Urlaß","doi":"10.1016/j.anucene.2025.111363","DOIUrl":null,"url":null,"abstract":"<div><div>High-resolution neutron transmission measurements of natural iron have been performed in the fast neutron range from 100keV to 12MeV using the nELBE time-of-flight experiment at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) with a flight path of 868.34(30) cm. The measurements were carried out using three different iron samples of 20, 50 and 90mm thickness. The neutron transmission and effective total cross section were determined as a function of neutron energy, and the results were compared with existing evaluations and previous measurements. The measurements revealed significant shortcomings in the resolved resonance region of current evaluations, particularly in the energy range from 100 to 700 keV. The results of this work have already been used to improve the INDEN evaluation for the Fe-isotopes, which have been adopted by the ENDF/B-VIII.1 library and proposed for JEFF-4. The high-resolution time-of-flight measurements provide valuable new data for the development of more accurate nuclear data evaluations for natural iron.</div></div>","PeriodicalId":8006,"journal":{"name":"Annals of Nuclear Energy","volume":"218 ","pages":"Article 111363"},"PeriodicalIF":1.9000,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Nuclear Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S030645492500180X","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

High-resolution neutron transmission measurements of natural iron have been performed in the fast neutron range from 100 keV to 12 MeV using the nELBE time-of-flight experiment at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) with a flight path of 868.34(30) cm. The measurements were carried out using three different iron samples of 20, 50 and 90mm thickness. The neutron transmission and effective total cross section were determined as a function of neutron energy, and the results were compared with existing evaluations and previous measurements. The measurements revealed significant shortcomings in the resolved resonance region of current evaluations, particularly in the energy range from 100 to 700 keV. The results of this work have already been used to improve the INDEN evaluation for the Fe-isotopes, which have been adopted by the ENDF/B-VIII.1 library and proposed for JEFF-4. The high-resolution time-of-flight measurements provide valuable new data for the development of more accurate nuclear data evaluations for natural iron.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Annals of Nuclear Energy 工程技术-核科学技术

CiteScore

4.30

自引率

21.10%

发文量

632

审稿时长

7.3 months

期刊介绍： Annals of Nuclear Energy provides an international medium for the communication of original research, ideas and developments in all areas of the field of nuclear energy science and technology. Its scope embraces nuclear fuel reserves, fuel cycles and cost, materials, processing, system and component technology (fission only), design and optimization, direct conversion of nuclear energy sources, environmental control, reactor physics, heat transfer and fluid dynamics, structural analysis, fuel management, future developments, nuclear fuel and safety, nuclear aerosol, neutron physics, computer technology (both software and hardware), risk assessment, radioactive waste disposal and reactor thermal hydraulics. Papers submitted to Annals need to demonstrate a clear link to nuclear power generation/nuclear engineering. Papers which deal with pure nuclear physics, pure health physics, imaging, or attenuation and shielding properties of concretes and various geological materials are not within the scope of the journal. Also, papers that deal with policy or economics are not within the scope of the journal.