Study of the photon strength functions and level density in the gamma decay of the n + 234U reaction

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

doi:10.1051/epjconf/201921102002

All issues

Volume 211 (2019)

EPJ Web Conf., 211 (2019) 02002

Abstract

Open Access

Issue		EPJ Web Conf. Volume 211, 2019 WONDER-2018 – 5^th International Workshop On Nuclear Data Evaluation for Reactor applications


Article Number		02002
Number of page(s)		9
Section		Evaluation of Nuclear Data
DOI		https://doi.org/10.1051/epjconf/201921102002
Published online		05 June 2019

EPJ Web of Conferences 211, 02002 (2019)
https://doi.org/10.1051/epjconf/201921102002

Study of the photon strength functions and level density in the gamma decay of the n + ²³⁴U reaction

J. Moreno-Soto¹^*, E Berthoumieux¹, E Dupont¹, F Gunsing¹, O Serot², O Litaize², M Diakaki², A Chebboubi², W Dridi³, S Valenta³³, M. Krtiˇcka³³, O Aberle⁴, V Alcayne⁵, J Andrzejewski⁶, L Audouin⁷, V. Bécares⁵, V. Babiano-Suarez⁸, M Bacak⁴^,9^,1, M Barbagallo⁴^,10, Th Benedikt¹¹, S Bennett¹², J Billowes¹², D Bosnar¹³, A Brown¹⁴, M Busso¹⁰^,15^,16, M. Caamaño¹⁷, L. Caballero-Ontanaya⁸, F. Calviño¹⁸, M Calviani⁴, D. Cano-Ott⁵, A Casanovas¹⁸, F Cerutti⁴, E Chiaveri⁴^,12, N Colonna¹⁰, G. Cortés¹⁸, M. A. Cortés-Giraldo¹⁹, L Cosentino²⁰, S Cristallo¹⁰^,15^,21, L. A Damone¹⁰^,22, P. J Davies¹², M Dietz²³, C. Domingo-Pardo⁸, R Dressler²⁴, Q Ducasse²⁵, I. Durán¹⁷, Z Eleme²⁶, B. Fernández-Domínguez¹⁷, A Ferrari⁴, P Finocchiaro²⁰, V Furman²⁷, K. Göbel¹¹, A Gawlik⁶, S Gilardoni⁴, I. F. Gonçalves²⁸, E. González-Romero⁵, C Guerrero¹⁹, S Heinitz²⁴, J Heyse²⁹, D. G Jenkins¹⁴, A Junghans³⁰, F. Käppeler³¹, Y Kadi⁴, A Kimura³², I Knapova³³, M Kokkoris³⁴, Y Kopatch²⁷, D Kurtulgil¹¹, I Ladarescu⁸, C. Lederer-Woods²³, S. J Lonsdale²³, D Macina⁴, A Manna³⁵^,36, T. Martínez⁵, A Masi⁴, C Massimi³⁵^,36, P Mastinu³⁷, M Mastromarco⁴, E. A Maugeri²⁴, A Mazzone¹⁰^,38, E Mendoza⁵, A Mengoni³⁹, V Michalopoulou⁴^,34, P. M Milazzo⁴⁰, F Mingrone⁴, A Musumarra²⁰^,41, A Negret⁴², F. Ogállar⁴³, A Oprea⁴², N Patronis²⁶, A Pavlik⁴⁴, J Perkowski⁶, L Persanti¹⁰^,15^,21, C Petrone⁴², E Pirovano²⁵, I Porras⁴³, J Praena⁴³, J. M Quesada¹⁹, D. Ramos-Doval⁷, T Rauscher⁴⁵^,46, R Reifarth¹¹, D Rochman²⁴, M. Sabaté-Gilarte¹⁹^,4, A Saxena⁴⁷, P Schillebeeckx²⁹, D Schumann²⁴, A Sekhar¹², S Simone²⁰, A. G Smith¹², N. V Sosnin¹², P Sprung²⁴, A Stamatopoulos³⁴, G Tagliente¹⁰, J. L Tain⁸, A. Tarifeño-Saldivia¹⁸, L. Tassan-Got⁴^,34^,7, A Tsinganis⁴, J Ulrich²⁴, S Urlass³⁰^,4, G Vannini³⁵^,36, V Variale¹⁰, P Vaz²⁸, A Ventura³⁵, D Vescovi¹⁰^,15, V Vlachoudis⁴, R Vlastou³⁴, A Wallner⁴⁸, P. J Woods²³, T Wright¹², P. Žugec¹³ and and the n_TOF Collaboration

¹ CEA Irfu, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
² CEA, DEN, DER, SPRC, Cadarache, F-13108 Saint-Paul-lez-Durance, France
³ Laboratory on Energy and Matter for Nuclear Sciences Development (LR16CNSTN02), Technopark Sidi Thabet, 2020 Ariana, Tunisia
⁴ European Organization for Nuclear Research (CERN), Switzerland
⁵ Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Spain
⁶ University of Lodz, Poland
⁷ Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
⁸ Instituto de Física Corpuscular, CSIC - Universidad de Valencia, Spain
⁹ Technische Universität Wien, Austria
¹⁰ Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
¹¹ Goethe University Frankfurt, Germany
¹² University of Manchester, United Kingdom
¹³ Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
¹⁴ University of York, United Kingdom
¹⁵ Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Italy
¹⁶ Dipartimento di Fisica e Geologia, Università di Perugia, Italy
¹⁷ University of Santiago de Compostela, Spain
¹⁸ Universitat Politècnica de Catalunya, Spain
¹⁹ Universidad de Sevilla, Spain
²⁰ INFN Laboratori Nazionali del Sud, Catania, Italy
²¹ Istituto Nazionale di Astrofisica - Osservatorio Astronomico di Teramo, Italy
²² Dipartimento di Fisica, Università degli Studi di Bari, Italy
²³ School of Physics and Astronomy, University of Edinburgh, United Kingdom
²⁴ Paul Scherrer Institut (PSI), Villingen, Switzerland
²⁵ Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
²⁶ University of Ioannina, Greece
²⁷ Joint Institute for Nuclear Research (JINR), Dubna, Russia
²⁸ Instituto Superior Técnico, Lisbon, Portugal
²⁹ European Commission, Joint Research Centre, Geel, Retieseweg 111, B-2440 Geel, Belgium
³⁰ Helmholtz-Zentrum Dresden-Rossendorf, Germany
³¹ Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany
³² Japan Atomic Energy Agency (JAEA), Tokai-mura, Japan
³³ Charles University, Prague, Czech Republic
³⁴ National Technical University of Athens, Greece
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 (ENEA), Bologna, Italy
⁴⁰ Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
⁴¹ Dipartimento di Fisica e Astronomia, Università di Catania, Italy
⁴² Horia Hulubei National Institute of Physics and Nuclear Engineering, Romania
⁴³ University of Granada, Spain
⁴⁴ University of Vienna, Faculty of Physics, Vienna, Austria
⁴⁵ Department of Physics, University of Basel, Switzerland
⁴⁶ Centre for Astrophysics Research, University of Hertfordshire, United Kingdom
⁴⁷ Bhabha Atomic Research Centre (BARC), India
⁴⁸ Australian National University, Canberra, Australia

^* e-mail: javier.moreno-soto@cea.fr

Published online: 5 June 2019

Abstract

The accurate calculations of neutron-induced reaction cross sections are relevant for many nuclear applications. The photon strength functions and nuclear level densities are essential inputs for such calculations. These quantities for ²³⁵U are studied using the measurement of the gamma de-excitation cascades in radiative capture on ²³⁴U with the Total Absorption Calorimeter at n_TOF at CERN. This segmented 4π gamma calorimeter is designed to detect gamma rays emitted from the nucleus with high efficiency. This experiment provides information on gamma multiplicity and gamma spectra that can be compared with numerical simulations. The code DICEBOXC is used to simulate the gamma cascades while GEANT4 is used for the simulation of the interaction of these gammas with the TAC materials. Available models and their parameters are being tested using the present data. Some preliminary results of this ongoing study are presented and discussed.

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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