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High-accuracy determination of the neutron flux at n TOF

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10.1140/epja/i2013-13156-x
 
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hdl:2117/21365

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Barbagallo, M.
Guerrero, C.
Tsinganis, A.
Tarrío, D.
Altstadt, S.
Andriamonje, S.
Andrzejewski, J.
Audouin, L.
Bécares, V.
Becvar, F.
Belloni, Fabio
Calviño Tavares, FranciscoMés informacióMés informacióMés informació
Cortés Rossell, Guillem PereMés informacióMés informacióMés informació
Gómez Hornillos, María Belén
Hernández-Prieto, A.
Riego Pérez, AlbertMés informacióMés informació
Document typeArticle
Defense date2013-12-18
Rights accessRestricted access - publisher's policy
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
ProjectANDES - Accurate Nuclear Data for nuclear Energy Sustainability (EC-FP7-249671)
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.
CitationBarbagallo, M. [et al.]. High-accuracy determination of the neutron flux at n TOF. "European physical journal A", 18 Desembre 2013, vol. 49, núm. 12, p. 15601-15611. 
URIhttp://hdl.handle.net/2117/21365
DOI10.1140/epja/i2013-13156-x
ISSN1434-6001
Publisher versionhttp://epja.epj.org/articles/epja/abs/2013/12/10050_2013_Article_9988/10050_2013_Article_9988.html
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  • Departament de Física i Enginyeria Nuclear (fins octubre 2015) - Articles de revista [603]
  • GREENER - Grup de recerca d'estudis energètics i de les radiacions - Articles de revista [178]
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