High-accuracy determination of the neutron flux at n_TOF

被引：0

作者：

M. Barbagallo

C. Guerrero

A. Tsinganis

D. Tarrío

S. Altstadt

S. Andriamonje

J. Andrzejewski

L. Audouin

V. Bécares

F. Bečvář

F. Belloni

E. Berthoumieux

J. Billowes

V. Boccone

D. Bosnar

M. Brugger

M. Calviani

F. Calviño

D. Cano-Ott

C. Carrapiço

F. Cerutti

E. Chiaveri

M. Chin

N. Colonna

G. Cortés

M. A. Cortés-Giraldo

M. Diakaki

C. Domingo-Pardo

I. Duran

R. Dressler

N. Dzysiuk

C. Eleftheriadis

A. Ferrari

K. Fraval

S. Ganesan

A. R. García

G. Giubrone

K. Göbel

M. B. Gómez-Hornillos

I. F. Gonçalves

E. González-Romero

E. Griesmayer

F. Gunsing

P. Gurusamy

A. Hernández-Prieto

D. G. Jenkins

E. Jericha

Y. Kadi

F. Käppeler

D. Karadimos

机构：

[1] Sezione di Bari,INFN

[2] European Organization for Nuclear Research (CERN),Department of Physics, Faculty of Science

[3] National Technical University of Athens (NTUA),Instituto Tecnológico e Nuclear, Instituto Superior Técnico

[4] Universidade de Santiago de Compostela,Instituto de Física Corpuscular

[5] Johann-Wolfgang-Goethe Universität,INFN

[6] Uniwersytet Łódzki,Atominstitut

[7] Centre National de la Recherche Scientifique/IN2P3 - IPN,Karlsruhe Institute of Technology, Campus Nord

[8] Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT),Faculty of Physics

[9] Charles University,Dipartimento di Fisica

[10] Commissariatà l’Energie Atomique (CEA) Saclay - Irfu,INFN

[11] University of Manchester,European Commission JRC

[12] University of Zagreb,Department of Physics and Astronomy

[13] Universitat Politecnica de Catalunya,undefined

[14] Universidade Técnica de Lisboa,undefined

[15] Universidad de Sevilla,undefined

[16] CSIC-Universidad de Valencia,undefined

[17] Paul Scherrer Institut,undefined

[18] Laboratori Nazionali di Legnaro,undefined

[19] Aristotle University of Thessaloniki,undefined

[20] Bhabha Atomic Research Centre (BARC),undefined

[21] Technische Universität Wien,undefined

[22] University of York,undefined

[23] Institut für Kernphysik,undefined

[24] Oak Ridge National Laboratory (ORNL),undefined

[25] University of Vienna,undefined

[26] Università di Bologna,undefined

[27] and INFN,undefined

[28] Sezione di Bologna,undefined

[29] Agenzia nazionale per le nuove tecnologie,undefined

[30] l’energia e lo sviluppo economico sostenibile (ENEA),undefined

[31] Sezione di Trieste,undefined

[32] Horia Hulubei National Institute of Physics and Nuclear Engineering - IFIN HH,undefined

[33] Institute for Reference Materials and Measurements,undefined

[34] University of Basel,undefined

[35] Laboratori Nazionali del Gran Sasso dell’INFN,undefined

来源：

The European Physical Journal A | 2013年 / 49卷

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摘要：

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 30keV, hinting at a possible overestimation of this important cross section, well above currently assigned uncertainties.

引用

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