First results of the 241Am(n,f) cross section measurement at the Experimental Area 2 of the n_TOF facility at CERN

Z. Eleme; N. Patronis; A. Stamatopoulos; A. Tsinganis; M. Kokkoris; V. Michalopoulou; M. Diakaki; R. Vlastou; L Tassan-Got; N. Colonna; J. Heyse; M. Barbagallo; M. Mastromarco; D. Macina; E. Chiaveri; O. Aberle; V. Alcayne; S. Amaducci; J. Andrzejewski; L. Audouin; V Babiano-Suarez; M. Bacak; S. Bennett; E. Berthoumieux; D. Bosnar; A. S. Brown; M. Busso; M. Caamaño; L. Caballero; M. Calviani; F. Calviño; D Cano-Ott; A. Casanovas; F. Cerutti; G. P. Cortés; M. A. Cortés-Giraldo; L. Cosentino; S. Cristallo; L. A. Damone; P. J. Davies; M. Dietz; C Domingo-Pardo; R. Dressler; Q. Ducasse; E. Dupont; I. Durán; B. Fernández-Domíngez; A. Ferrari; I. Ferro-Gonçalves; P. Finocchiaro; V. Furman; R. Garg; A. Gawlik; S. Gilardoni; K. Göbel; E. González-Romero; C. Guerrero; F. Gunsing; S. Heinitz; D. G. Jenkins; E. Jericha; U. Jiri; A. Junghans; Y. Kadi; F. Käppeler; A. Kimura; I. Knapová; Y. Kopatch; M. Krticˇka; D. Kurtulgil; I. Ladarescu; C Lederer-Woods; J Lerendegui-Marco; S. J. Lonsdale; A. Manna; T. Martínez; A. Masi; C. Massimi; P. F. Mastinu; E. Maugeri; A. Mazzone; E. Mendoza; A. Mengoni; P. M. Milazzo; M. A. Millán-Callado; F. Mingrone; J Moreno-Soto; A. Musumarra; A. Negret; F. Ogállar; A. Oprea; A. Pavlik; J. Perkowski; C. Petrone; L. Piersanti; E. Pirovano; I. Porras; J. Praena; J. M. Quesada; D. Ramos Doval; R. Reifarth; D. Rochman; C. Rubbia; M. Sabaté-Gilarte; A. Saxena; P. Schillebeeckx; D. Schumann; A. Sekhar; A. G. Smith; N. Sosnin; P. Sprung; G. Tagliente; J. L. Tain; A. E. Tarifeño-Saldivia; B. Thomas; P. Torres-Sánchez; S. Urlass; S. Valenta; G. Vannini; V. Variale; P. Vaz; A. Ventura; D. Vescovi; V. Vlachoudis; A. Wallner; P. J. Woods; T. J. Wright; P. Žugec

doi:10.1051/epjconf/202023905014

All issues

Volume 239 (2020)

EPJ Web Conf., 239 (2020) 05014

Abstract

Open Access

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


Article Number		05014
Number of page(s)		5
Section		Fission Experiment and Theory
DOI		https://doi.org/10.1051/epjconf/202023905014
Published online		30 September 2020

EPJ Web of Conferences 239, 05014 (2020)
https://doi.org/10.1051/epjconf/202023905014

First results of the ²⁴¹Am(n,f) cross section measurement at the Experimental Area 2 of the n_TOF facility at CERN

Z. Eleme¹^*, N. Patronis¹, A. Stamatopoulos², A. Tsinganis³, M. Kokkoris², V. Michalopoulou²^,3, M. Diakaki²^,4, R. Vlastou², L Tassan-Got²^,3^,5, N. Colonna⁶, J. Heyse⁷, M. Barbagallo³^,6, M. Mastromarco³^,8, D. Macina³, E. Chiaveri³^,8^,9, O. Aberle³, V. Alcayne¹⁰, S. Amaducci¹¹^,12, J. Andrzejewski¹³, L. Audouin⁵, V Babiano-Suarez¹⁴, M. Bacak³^,15^,16, S. Bennett⁸, E. Berthoumieux¹⁶, D. Bosnar¹⁷, A. S. Brown¹⁸, M. Busso¹⁹^,20, M. Caamaño²¹, L. Caballero¹⁴, M. Calviani³, F. Calviño²², D Cano-Ott¹⁰, A. Casanovas²², F. Cerutti³, G. P. Cortés²², M. A. Cortés-Giraldo⁹, L. Cosentino¹¹, S. Cristallo¹⁹^,23, L. A. Damone⁶^,24, P. J. Davies⁸, M. Dietz²⁵, C Domingo-Pardo¹⁴, R. Dressler²⁶, Q. Ducasse²⁷, E. Dupont¹⁶, I. Durán²¹, B. Fernández-Domíngez²¹, A. Ferrari³, I. Ferro-Gonçalves²⁸, P. Finocchiaro¹¹, V. Furman²⁹, R. Garg²⁵, A. Gawlik¹³, S. Gilardoni³, K. Göbel³⁰, E. González-Romero¹⁰, C. Guerrero⁹, F. Gunsing¹⁶, S. Heinitz²⁶, D. G. Jenkins¹⁸, E. Jericha¹⁵, U. Jiri²⁶, A. Junghans³¹, Y. Kadi³, F. Käppeler³², A. Kimura³³, I. Knapová³⁴, Y. Kopatch²⁹, M. Krticˇka³⁴, D. Kurtulgil³⁰, I. Ladarescu¹⁴, C Lederer-Woods²⁵, J Lerendegui-Marco⁹, S. J. Lonsdale²⁵, A. Manna³⁵^,36, T. Martínez¹⁰, A. Masi³, C. Massimi³⁵^,36, P. F. Mastinu³⁷, E. Maugeri²⁶, A. Mazzone⁶^,38, E. Mendoza¹⁰, A. Mengoni³⁵^,39, P. M. Milazzo⁴⁰, M. A. Millán-Callado⁹, F. Mingrone³, J Moreno-Soto¹⁶, A. Musumarra¹¹^,12, A. Negret⁴¹, F. Ogállar⁴², A. Oprea⁴¹, A. Pavlik⁴³, J. Perkowski¹³, C. Petrone⁴¹, L. Piersanti¹⁹^,23, E. Pirovano²⁷, I. Porras⁴², J. Praena⁴², J. M. Quesada⁹, D. Ramos Doval⁵, R. Reifarth³⁰, D. Rochman²⁶, C. Rubbia³, M. Sabaté-Gilarte⁹^,3, A. Saxena⁴⁴, P. Schillebeeckx⁷, D. Schumann²⁶, A. Sekhar⁸, A. G. Smith⁸, N. Sosnin⁸, P. Sprung²⁶, G. Tagliente⁶, J. L. Tain¹⁴, A. E. Tarifeño-Saldivia²², B. Thomas³⁰, P. Torres-Sánchez⁴², S. Urlass³^,31, S. Valenta³⁴, G. Vannini³⁵^,36, V. Variale⁶, P. Vaz²⁸, A. Ventura³⁵, D. Vescovi¹⁹^,45, V. Vlachoudis³, A. Wallner⁴⁶, P. J. Woods²⁵, T. J. Wright⁸ and P. Žugec¹⁷

¹ Department of Physics, University of Ioannina, Greece
² Department of Physics, National Technical University of Athens, Greece
³ European Organization for Nuclear Research (CERN), Switzerland
⁴ CEA, DEN, DER/SPRC/LEPh, Cadarache, F-13108 Saint Paul Lez Durance, France
⁵ IPN, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
⁶ Istituto Nazionale di Fisica Nucleare, Bari, Italy
⁷ European Commission, Joint Research Centre, Geel, Retieseweg 111, B-2440 Geel, Belgium
⁸ University of Manchester, United Kingdom
⁹ Universidad de Sevilla, Spain
¹⁰ Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Spain
¹¹ INFN Laboratori Nazionali del Sud, Catania, Italy
¹² Dipartimento di Fisica e Astronomia, Università di Catania, Italy
¹³ University of Lodz, Poland
¹⁴ Instituto de Física Corpuscular, CSIC - Universidad de Valencia, Spain
¹⁵ Technische Universität Wien, Austria
¹⁶ CEA Saclay, Irfu, Université Paris-Saclay, Gif-sur-Yvette, France
¹⁷ Department of Physics, Faculty of Science, University of Zagreb, Croatia
¹⁸ University of York, United Kingdom
¹⁹ Istituto Nazionale di Fisica Nazionale, Perugia, Italy
²⁰ Dipartimento di Fisica e Geologia, Università di Perugia, Italy
²¹ University of Santiago de Compostela, Spain
²² Universitat Politècnica de Catalunya, Spain
²³ Istituto Nazionale di Astrofisica - Osservatorio Astronomico d'Abruzzo, Italy
²⁴ Dipartimento di Fisica, Università degli Studi di Bari, Italy
²⁵ School of Physics and Astronomy, University of Edinburgh, United Kingdom
²⁶ Paul Scherrer Institut (PSI), Villigen, Switzerland
²⁷ Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
²⁸ Instituto Superior Técnico, Lisbon, Portugal
²⁹ Joint Institute for Nuclear Research (JINR), Dubna, Russia
³⁰ Goethe University Frankfurt, Germany
³¹ Helmholtz-Zentrum Dresden-Rossendorf, Germany
³² Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany
³³ Japan Atomic Energy Agency (JAEA), Tokai-mura, Japan
³⁴ Charles University, Prague, Czech Republic
³⁵ Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
³⁶ Dipartimento di Fisica e Astronomia, Università di Bologna, Italy
³⁷ Istituto Nazionale di Fisica Nucleare, Sezione di Legnaro, Italy
³⁸ Consiglio Nazionale delle Ricerche, Bari, Italy
³⁹ Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA), Bologna, Italy
⁴⁰ Istituto Nazionale di Fisica Nazionale, Trieste, Italy
⁴¹ Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), Bucharest
⁴² University of Granada, Spain
⁴³ University of Vienna, Faculty of Physics, Vienna, Austria
⁴⁴ Bhabha Atomic Research Centre (BARC), India
⁴⁵ Gran Sasso Science Institute (GSSI), L'Aquila, Italy
⁴⁶ Australian National University, Canberra, Australia

^* e-mail: Zinovia.Eleme@cern.ch

Published online: 30 September 2020

Abstract

Feasibility, design and sensitivity studies on innovative nuclear reactors that could address the issue of nuclear waste transmutation using fuels enriched in minor actinides, require high accuracy cross section data for a variety of neutron-induced reactions from thermal energies to several tens of MeV. The isotope ²⁴¹Am (T_1/2= 433 years) is present in high-level nuclear waste (HLW), representing about 1.8 % of the actinide mass in spent PWR UOx fuel. Its importance increases with cooling time due to additional production from the β-decay of ²⁴¹Pu with a half-life of 14.3 years. The production rate of ²⁴¹ Am in conventional reactors, including its further accumulation through the decay of ²⁴¹Pu and its destruction through transmutation/incineration are very important parameters for the design of any recycling solution. In the present work, the ²⁴¹ Am(n,f) reaction cross-section was measured using Micromegas detectors at the Experimental Area 2 of the n_TOF facility at CERN. For the measurement, the ²³⁵U(n,f) and ²³⁸U(n,f) reference reactions were used for the determination of the neutron flux. In the present work an overview of the experimental setup and the adopted data analysis techniques is given along with preliminary results.

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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