Study of the neutron-induced fission cross section of 237Np at CERN's n_TOF facility over a wide energy range

A. Stamatopoulos; A. Tsinganis; M. Diakaki; N. Colonna; M. Kokkoris; R. Vlastou; A. Kalamara; P. Schillebeeckx; L Tassan-Got; P. Žugec; M. Sabaté-Gilarte; N. Patronis; Z. Eleme; J. Heyse; O. Aberle; J. Andrzejewski; L. Audouin; M. Bacak; J. Balibrea; M. Barbagallo; F. Bečvář; E. Berthoumieux; J. Billowes; D. Bosnar; A. Brown; M. Caamaño; F. Calviño; M. Calviani; D Cano-Ott; R. Cardella; A. Casanovas; F. Cerutti; Y. H. Chen; E. Chiaveri; G. Cortés; M. A. Cortés-Giraldo; L. Cosentino; L. A. Damone; C Domingo-Pardo; R. Dressler; E. Dupont; Durán; B. Femandez-Domínguez; A. Ferrari; P. Ferreira; P. Finocchiaro; V. Furman; K. Göbel; A. R. García; A. Gawlik; S. Gilardoni; T. Glodariu†; I. F. Gonçalves; E. González-Romero; E. Griesmayer; C. Guerrero; F. Gunsing; H. Harada; S. Heinitz; D. G. Jenkins; E. Jericha; F. Käppeler; Y. Kadi; P. Kavrigin; A. Kimura; N. Kivel; I. Knapova; M. Krtička; D. Kurtulgil; E Leal-Cidoncha; C. Lederer; H. Leeb; J Lerendegui-Marco; S. Lo Meo; S. J. Lonsdale; D. Macina; A. Manna; J. Marganiec; T. Martínez; A. Masi; C. Massimi; P. Mastinu; M. Mastromarco; E. A. Maugeri; A. Mazzone; E. Mendoza; A. Mengoni; P. M. Milazzo; F. Mingrone; A. Musumarra; A. Negret; R. Nolte; A. Oprea; A. Pavlik; J. Perkowski; I. Porras; J. Praena; J. M. Quesada; D. Radeck; T. Rauscher; R. Reifarth; C. Rubbia; J. A. Ryan; A. Saxena; D. Schumann; P. Sedyshev; A. G. Smith; N. V. Sosnin; G. Tagliente; J. L. Tain; A. Tarifeño-Saldivia; S. Valenta; G. Vannini; V. Variale; P. Vaz; A. Ventura; D. Vescovi; V. Vlachoudis; A. Wallner; S. Warren; C. Weiss; P. J. Woods; T. Wright

doi:10.1051/epjconf/202023905006

All issues

Volume 239 (2020)

EPJ Web Conf., 239 (2020) 05006

Abstract

Open Access

Issue		EPJ Web Conf. Volume 239, 2020 ND 2019: International Conference on Nuclear Data for Science and Technology


Article Number		05006
Number of page(s)		4
Section		Fission Experiment and Theory
DOI		https://doi.org/10.1051/epjconf/202023905006
Published online		30 September 2020

EPJ Web of Conferences 239, 05006 (2020)
https://doi.org/10.1051/epjconf/202023905006

Study of the neutron-induced fission cross section of ²³⁷Np at CERN's n_TOF facility over a wide energy range

A. Stamatopoulos¹^*, A. Tsinganis², M. Diakaki¹^,44, N. Colonna³, M. Kokkoris¹, R. Vlastou¹, A. Kalamara¹, P. Schillebeeckx⁴, L Tassan-Got⁵, P. Žugec⁶^,2, M. Sabaté-Gilarte²^,7, N. Patronis⁸, Z. Eleme⁸, J. Heyse⁴, O. Aberle², J. Andrzejewski⁹, L. Audouin⁵, M. Bacak¹⁰^,2^,11, J. Balibrea¹², M. Barbagallo³, F. Bečvář¹³, E. Berthoumieux¹¹, J. Billowes¹⁴, D. Bosnar⁶, A. Brown¹⁵, M. Caamaño¹⁶, F. Calviño¹⁷, M. Calviani², D Cano-Ott¹², R. Cardella², A. Casanovas¹⁷, F. Cerutti², Y. H. Chen⁵, E. Chiaveri²^,14^,7, G. Cortés¹⁷, M. A. Cortés-Giraldo⁷, L. Cosentino¹⁸, L. A. Damone³^,19, C Domingo-Pardo²⁰, R. Dressler²¹, E. Dupont¹¹^,1, Durán¹⁶, B. Femandez-Domínguez¹⁶, A. Ferrari², P. Ferreira²², P. Finocchiaro¹⁸, V. Furman²³, K. Göbel²⁴, A. R. García¹², A. Gawlik⁹, S. Gilardoni², T. Glodariu†²⁵, I. F. Gonçalves²², E. González-Romero¹², E. Griesmayer¹⁰, C. Guerrero⁷, F. Gunsing¹¹^,2, H. Harada²⁶, S. Heinitz²¹, D. G. Jenkins¹⁵, E. Jericha¹⁰, F. Käppeler²⁷, Y. Kadi², P. Kavrigin¹⁰, A. Kimura²⁶, N. Kivel²¹, I. Knapova¹³, M. Krtička¹³, D. Kurtulgil²⁴, E Leal-Cidoncha¹⁶, C. Lederer²⁸, H. Leeb¹⁰, J Lerendegui-Marco⁷, S. Lo Meo²⁹^,30, S. J. Lonsdale²⁸, D. Macina², A. Manna³⁰^,31, J. Marganiec⁹^,32, T. Martínez¹², A. Masi², C. Massimi³⁰^,31, P. Mastinu³³, M. Mastromarco³, E. A. Maugeri²¹, A. Mazzone³^,34, E. Mendoza¹², A. Mengoni²⁹, P. M. Milazzo³⁵, F. Mingrone², A. Musumarra¹⁸^,36, A. Negret²⁵, R. Nolte³², A. Oprea²⁵, A. Pavlik³⁷, J. Perkowski⁹, I. Porras³⁸, J. Praena³⁸, J. M. Quesada⁷, D. Radeck³², T. Rauscher³⁹^,40, R. Reifarth²⁴, C. Rubbia², J. A. Ryan¹⁴, A. Saxena⁴¹, D. Schumann²¹, P. Sedyshev²³, A. G. Smith¹⁴, N. V. Sosnin¹⁴, G. Tagliente³, J. L. Tain²⁰, A. Tarifeño-Saldivia¹⁷, S. Valenta¹³, G. Vannini³⁰^,31, V. Variale³, P. Vaz²², A. Ventura³⁰, D. Vescovi³^,42, V. Vlachoudis², A. Wallner⁴³, S. Warren¹⁴, C. Weiss¹⁰, P. J. Woods²⁸, T. Wright¹⁴ and the n_TOF Collaboration

¹ National Technical University of Athens, Greece
² European Organization for Nuclear Research (CERN), Switzerland
³ Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
⁴ European Commission, Joint Research Centre, Geel, Retieseweg 111, B-2440 Geel, Belgium
⁵ Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
⁶ Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
⁷ Universidad de Sevilla, Spain
⁸ University of Ioannina, Greece
⁹ University of Lodz, Poland
¹⁰ Technische Universität Wien, Austria
¹¹ CEA Irfu, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
¹² Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Spain
¹³ Charles University, Prague, Czech Republic
¹⁴ University of Manchester, United Kingdom
¹⁵ University of York, United Kingdom
¹⁶ University of Santiago de Compostela, Spain
¹⁷ Universitat Politècnica de Catalunya, Spain
¹⁸ INFN Laboratori Nazionali del Sud, Catania, Italy
¹⁹ Dipartimento di Fisica, Università degli Studi di Bari, Italy
²⁰ Instituto de Física Corpuscular, CSIC - Universidad de Valencia, Spain
²¹ Paul Scherrer Institut (PSI), Villingen, Switzerland
²² Instituto Superior Técnico, Lisbon, Portugal
²³ Joint Institute for Nuclear Research (JINR), Dubna, Russia
²⁴ Goethe University Frankfurt, Germany
²⁵ Horia Hulubei National Institute of Physics and Nuclear Engineering, Romania
²⁶ Japan Atomic Energy Agency (JAEA), Tokai-mura, Japan
²⁷ Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany
²⁸ School of Physics and Astronomy, University of Edinburgh, United Kingdom
²⁹ Agenzia nazionale per le nuove tecnologie (ENEA), Bologna, Italy
³⁰ Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
³¹ Dipartimento di Fisica e Astronomia, Università di Bologna, Italy
³² Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
³³ Istituto Nazionale di Fisica Nucleare, Sezione di Legnaro, Italy
³⁴ Consiglio Nazionale delle Ricerche, Bari, Italy
³⁵ Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
³⁶ Dipartimento di Fisica e Astronomia, Università di Catania, Italy
³⁷ University of Vienna, Faculty of Physics, Vienna, Austria
³⁸ University of Granada, Spain
³⁹ Department of Physics, University of Basel, Switzerland
⁴⁰ Centre for Astrophysics Research, University of Hertfordshire, United Kingdom
⁴¹ Bhabha Atomic Research Centre (BARC), India
⁴² Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Italy
⁴³ Australian National University, Canberra, Australia
⁴⁴ CEA, Cadarache, DEN/DER/SPRC/LEPh, 13108 Saint Paul Les Durance, France

^* e-mail: athanasios.stamatopoulos@cern.ch

Published online: 30 September 2020

Abstract

Neutron-induced fission cross sections of isotopes involved in the nuclear fuel cycle are vital for the design and safe operation of advanced nuclear systems. Such experimental data can also provide additional constraints for the adjustment of nuclear model parameters used in the evaluation process, resulting in the further development of fission models. In the present work, the ²³⁷Np(n,f) cross section was studied at the EAR2 vertical beam-line at CERN's n_TOF facility, over a wide range of neutron energies, from meV to MeV, using the time-of-flight technique and a set-up based on Micromegas detectors, in an attempt to provide accurate experimental data. Preliminary results in the 200 keV – 14 MeV neutron energy range as well as the experimental procedure, including a description of the facility and the data handling and analysis, will be presented.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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