Neutron-induced fission cross-section of 233U in the energy range 0.5 < En < 20 MeV

F. Belloni; M. Calviani; N. Colonna; P. Mastinu; P.M. Milazzo; U. Abbondanno; G. Aerts; H. Álvarez; F. Alvarez-Velarde; S. Andriamonje; J. Andrzejewski; L. Audouin; G. Badurek; P. Baumann; F. Bečvář; E. Berthoumieux; F. Calviño; D. Cano-Ott; R. Capote; C. Carrapiço; P. Cennini; V. Chepel; E. Chiaveri; G. Cortes; A. Couture; J. Cox; M. Dahlfors; S. David; I. Dillmann; C. Domingo-Pardo; W. Dridi; I. Duran; C. Eleftheriadis; M. Embid-Segura; A. Ferrari; R. Ferreira-Marques; K. Fujii; W. Furman; I. Goncalves; E. Gonzalez-Romero; A. Goverdovski; F. Gramegna; C. Guerrero; F. Gunsing; B. Haas; R. Haight; M. Heil; A. Herrera-Martinez; M. Igashira; E. Jericha; F. Käppeler; Y. Kadi; D. Karadimos; D. Karamanis; M. Kerveno; P. Koehler; E. Kossionides; M. Krtička; C. Lamboudis; H. Leeb; A. Lindote; I. Lopes; M. Lozano; S. Lukic; J. Marganiec; S. Marrone; T. Martınez; C. Massimi; M.H. Meaze; A. Mengoni; C. Moreau; M. Mosconi; F. Neves; H. Oberhummer; S. O’Brien; J. Pancin; C. Papachristodoulou; C. Papadopoulos; C. Paradela; N. Patronis; A. Pavlik; P. Pavlopoulos; L. Perrot; M.T. Pigni; R. Plag; A. Plompen; A. Plukis; A. Poch; J. Praena; C. Pretel; J. Quesada; T. Rauscher; R. Reifarth; M. Rosetti; C. Rubbia; G. Rudolf; P. Rullhusen; J. Salgado; C. Santos; L. Sarchiapone; I. Savvidis; C. Stephan; G. Tagliente; J.L. Tain; L. Tassan-Got; L. Tavora; R. Terlizzi; G. Vannini; P. Vaz; A. Ventura; D. Villamarin; M.C. Vincente; V. Vlachoudis; R. Vlastou; F. Voss; S. Walter; M. Wiescher; K. Wisshak

doi:10.1140/epja/i2011-11002-y

2023 Impact factor 2.6

Hadrons and Nuclei

Open Access

Eur. Phys. J. A (2011) 47: 2
https://doi.org/10.1140/epja/i2011-11002-y

Regular Article - Experimental Physics

Neutron-induced fission cross-section of ²³³U in the energy range 0.5 < E_n < 20 MeV

The n_TOF Collaboration
F. Belloni¹, M. Calviani²^,3, N. Colonna⁴, P. Mastinu², P.M. Milazzo¹, U. Abbondanno¹, G. Aerts⁵, H. Álvarez⁶, F. Alvarez-Velarde⁷, S. Andriamonje⁵, J. Andrzejewski⁸, L. Audouin⁹, G. Badurek¹⁰, P. Baumann¹¹, F. Bečvář¹², E. Berthoumieux⁵, F. Calviño¹³, D. Cano-Ott⁶, R. Capote¹⁴^,15, C. Carrapiço¹⁶, P. Cennini³, V. Chepel¹⁷, E. Chiaveri³, G. Cortes¹³, A. Couture¹⁸, J. Cox¹⁸, M. Dahlfors³, S. David¹¹, I. Dillmann⁹, C. Domingo-Pardo¹⁹, W. Dridi⁵, I. Duran⁶, C. Eleftheriadis²⁰, M. Embid-Segura⁶, A. Ferrari³, R. Ferreira-Marques¹⁷, K. Fujii¹, W. Furman²¹, I. Goncalves¹⁶, E. Gonzalez-Romero⁶, A. Goverdovski²², F. Gramegna², C. Guerrero⁷, F. Gunsing⁵, B. Haas²³, R. Haight²⁴, M. Heil⁹, A. Herrera-Martinez³, M. Igashira²⁵, E. Jericha¹⁰, F. Käppeler⁹, Y. Kadi³, D. Karadimos²⁶, D. Karamanis²⁶, M. Kerveno¹¹, P. Koehler²⁷, E. Kossionides²⁸, M. Krtička¹², C. Lamboudis²⁰, H. Leeb¹⁰, A. Lindote¹⁷, I. Lopes¹⁷, M. Lozano²⁹, S. Lukic¹¹, J. Marganiec⁸, S. Marrone⁴, T. Martınez⁷, C. Massimi³⁰, M.H. Meaze⁴, A. Mengoni³^,14, C. Moreau¹, M. Mosconi⁹, F. Neves¹⁷, H. Oberhummer¹⁰, S. O’Brien¹⁸, J. Pancin⁵, C. Papachristodoulou²⁶, C. Papadopoulos³¹, C. Paradela⁶, N. Patronis²⁶, A. Pavlik³², P. Pavlopoulos³³, L. Perrot⁵, M.T. Pigni¹⁰, R. Plag⁹, A. Plompen³⁴, A. Plukis⁵, A. Poch¹³, J. Praena²⁹, C. Pretel¹³, J. Quesada²⁹, T. Rauscher³⁵, R. Reifarth²⁴, M. Rosetti³⁶, C. Rubbia³⁷, G. Rudolf¹¹, P. Rullhusen³⁴, J. Salgado¹⁶, C. Santos¹⁶, L. Sarchiapone³, I. Savvidis²⁰, C. Stephan³⁸, G. Tagliente⁴, J.L. Tain¹⁹, L. Tassan-Got³⁸, L. Tavora¹⁶, R. Terlizzi⁴, G. Vannini³⁰, P. Vaz¹⁶, A. Ventura³⁶, D. Villamarin⁷, M.C. Vincente⁷, V. Vlachoudis³, R. Vlastou³¹, F. Voss⁹, S. Walter⁹, M. Wiescher¹⁸ and K. Wisshak⁹

¹ Istituto Nazionale di Fisica Nucleare (INFN), Trieste, Italy
² Istituto Nazionale di Fisica Nucleare (INFN), Laboratori Nazionali di Legnaro, Legnaro, Italy
³ CERN, Geneva, Switzerland
⁴ Istituto Nazionale di Fisica Nucleare (INFN), Bari, Italy
⁵ CEA, Irfu, Gif-sur-Yvette, France
⁶ Universidade de Santiago de Compostela, Santiago, Spain
⁷ Centro de Investigaciones Energeticas Medioambientales y Technologicas, Madrid, Spain
⁸ University of Lodz, Lodz, Poland
⁹ Karlsruhe Institute of Technology, Campus Nord, Institut für Kernphysik, Karlsruhe, Germany
¹⁰ Atominstitut der Österreichischen Universitäten, Technische Universität Wien, Wien, Austria
¹¹ Centre National de la Recherche Scientifique/IN2P3 - IReS, Strasbourg, France
¹² Faculty of Mathematics and Physics, Charles University in Prague, Prague, Czech Republic
¹³ Universitat Politecnica de Catalunya, Barcelona, Spain
¹⁴ International Atomic Energy Agency (IAEA), NAPC/Nuclear Data Section, Vienna, Austria
¹⁵ Universidad de Sevilla, Sevilla, Spain
¹⁶ Instituto Tecnológico e Nuclear (ITN), Lisbon, Portugal
¹⁷ LIP - Coimbra and Departamento de Fisica da Universidade de Coimbra, Coimbra, Portugal
¹⁸ University of Notre Dame, Notre Dame, IN, USA
¹⁹ Instituto de Fısica Corpuscular, CSIC-Universidad de Valencia, Valencia, Spain
²⁰ Aristotle University of Thessaloniki, Thessaloniki, Greece
²¹ Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, Russia
²² Institute of Physics and Power Engineering, Obninsk, Russia
²³ Centre National de la Recherche Scientifique/IN2P3 - CENBG, Bordeaux, France
²⁴ Los Alamos National Laboratory, Los Alamos, NM, USA
²⁵ Tokyo Institute of Technology, Tokyo, Japan
²⁶ University of Ioannina, Ioannina, Greece
²⁷ Oak Ridge National Laboratory, Physics Division, Oak Ridge, TN, USA
²⁸ NCSR, Athens, Greece
²⁹ Universidad de Sevilla, Sevilla, Spain
³⁰ Dipartimento di Fisica, Università di Bologna and Sezione INFN di Bologna, Bologna, Italy
³¹ National Technical University of Athens, Athens, Greece
³² Institut für Fakultät für Physik, Universität Wien, Wien, Austria
³³ Pôle Universitaire Léonard de Vinci, Paris La Défense, France
³⁴ CEC-JRC-IRMM, Geel, Belgium
³⁵ Department of Physics and Astronomy, University of Basel, Basel, Switzerland
³⁶ ENEA, Bologna, Italy
³⁷ Università degli Studi di Pavia, Pavia, Italy
³⁸ Centre National de la Recherche Scientifique/IN2P3 - IPN, Orsay, France

Received: 9 September 2010
Revised: 10 November 2010
Accepted: 25 November 2010
Published online: 6 January 2011

Abstract

The neutron-induced fission cross-section of ²³³U has been measured at the CERN n_TOF facility relative to the standard fission cross-section of ²³⁵U between 0.5 and 20MeV. The experiment was performed with a fast ionization chamber for the detection of the fission fragments and to discriminate against $\alpha$ -particles from the natural radioactivity of the samples. The high instantaneous flux and the low background of the n_TOF facility result in data with uncertainties of $\approx$ 3% , which were found in good agreement with previous experiments. The high quality of the present results allows to improve the evaluation of the ²³³U (n,f) cross-section and, consequently, the design of energy systems based on the Th/U cycle.