Neutron transmission measurements at nELBE

  • Neutron total cross sections are an important source of experimental data in the evaluation of neutron-induced cross sections. The sum of all neutron-induced reaction cross sections can be determined with a precision of a few per cent in a relative measurement. The neutron spectrum of the photoneutron source nELBE extends in the fast region from about 100 keV to 10 MeV and has favourable conditions for transmission measurements due to the low instantaneous flux of neutrons and low gamma-flash background. Several materials of interest (in part included in the CIELO evaluation or on the HPRL of OECD/NEA) have been investigated: 197Au [1, 2], natFe [2], natW [2], 238U, natPt, 4He, natO, natNe, natXe. For gaseous targets high pressure gas cells with flat end-caps have been built that hold up to 200 bar pressure. The experimental setup will be presented including results from several transmission experiments and the data analysis leading to the total cross sections will be discussed.

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Author:Arnd Rudolf JunghansORCiDGND, Roland Beyer, Jürgen Claußner, Toni Kögler, Sebastian Urlaß, Daniel BemmererORCiDGND, Anna Ferrari, Ronald Schwengner, Andreas Wagner, Mirco Dietz, Axel Frotscher, Marcel Grieger, Thomas Hensel, Martina Koppitz, Felix Ludwig, Steffen Turkat, Ralf NolteORCiD, Elisa PirovanoORCiD, Stefan Kopecky, Markus Nyman, Arjan J. M. PlompenORCiD, Peter Schillebeeckx, Erik Borris, René ReifarthORCiDGND, Daniel Veltum, Mario WeigandORCiDGND, Jan GloriusORCiDGND, Joachim Görres, Uwe Oberlack, Daniel Wenz
Parent Title (English):EPJ Web of Conferences
Publisher:EDP Sciences
Place of publication:Les Ulis
Document Type:Article
Date of Publication (online):2020/09/30
Year of first Publication:2020
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Contributing Corporation:ND 2019: International Conference on Nuclear Data for Science and Technology
Release Date:2020/11/18
Issue:article number 01006
Page Number:6
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoCreative Commons - Namensnennung 4.0