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High-accuracy determination of the neutron flux at n_TOF

Name: High-accuracy determination of the neutron flux at n_TOF
Keywords: Neutrons, :Energies::Energia nuclear [Àrees temàtiques de la UPC], Flux, :Física [Àrees temàtiques de la UPC], Physics, Àrees temàtiques de la UPC::Física, ddc:530, [PHYS.NEXP] Physics/Nuclear Experiment, Àrees temàtiques de la UPC::Energies::Energia nuclear, Neutron

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Dec 2013 Spain, Spain, Spain, France, Spain, Australia, Germany Publisher:Springer Science and Business Media LLCJournal:The European Physical Journal A, volume 49 (issn: 1434-6001, eissn: 1434-601X,

Authors: F. Bečvář; Jeri Kroll; Alberto Ventura; P. M. Milazzo; E. Jericha; Roberto Losito; R. Vlastou; +109 Authors

doi: 10.1140/epja/i2013-13156-x

handle: 2117/21365 , 1885/101036

High-accuracy determination of the neutron flux at n_TOF

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Abstract

The neutron flux of the n TOF facility at CERN was measured, after installation of the new spallation target, with four different systems based on three neutron-converting reactions, which represent accepted cross sections standards in different energy regions. A careful comparison and combination of the different measurements allowed us to reach an unprecedented accuracy on the energy dependence of the neutron flux in the very wide range (thermal to 1 GeV) that characterizes the n TOF neutron beam. This is a pre-requisite for the high accuracy of cross section measurements at n TOF. An unexpected anomaly in the neutron-induced fission cross section of 235U is observed in the energy region between 10 and 30 keV, hinting at a possible overestimation of this important cross section, well above currently assigned uncertainties.

Countries

Spain, Spain, Spain, France, Spain, Australia, Germany

Related Organizations

French Institute for Research in Computer Science and Automation
France
Spanish National Research Council
Spain
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
Spain
University of Salford
United Kingdom
University of Rijeka, Faculty of Physics
Croatia

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Keywords

Neutrons, :Energies::Energia nuclear [Àrees temàtiques de la UPC], Flux, :Física [Àrees temàtiques de la UPC], Physics, Àrees temàtiques de la UPC::Física, ddc:530, [PHYS.NEXP] Physics/Nuclear Experiment, Àrees temàtiques de la UPC::Energies::Energia nuclear, Neutron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 530, Ntof, CERN, High pressure physics, [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], Experimental physics, info:eu-repo/classification/ddc/530

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	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	72
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%