Measurement and analysis of 155,157Gd(n,γ) from thermal energy to 1 keV

C. Massimi; 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; D. M. Castelluccio; F. Cerutti; Y. H. Chen; E. Chiaveri; G. Clai; N. Colonna; P. Console Camprini; G. Cortés; M. A. Cortés-Giraldo; L. Cosentino; L. A. Damone; M. Diakaki; C Domingo-Pardo; R. Dressler; E. Dupont; I. Durán; B. Fernández-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; A. Guglielmelli; F. Gunsing; H. Harada; S. Heinitz; J. Heyse; D. G. Jenkins; E. Jericha; F. Käppeler; Y. Kadi; A. Kalamara; P. Kavrigin; A. Kimura; N. Kivel; I. Knapova; M. Kokkoris; M. Krtička; D. Kurtulgil; E Leal-Cidoncha; C. Lederer; H. Leeb; J Lerendegui-Marco; S. J. Lonsdale; D. Macina; A. Manna; J. Marganiec; T. Martínez; A. Masi; P. Mastinu; M. Mastromarco; E. A. Maugeri; A. Mazzone; E. Mendoza; A. Mengoni; P. M. Milazzo; F. Mingrone; R. Mucciola; A. Musumarra; A. Negret; R. Nolte; A. Oprea; N. Patronis; A. Pavlik; J. Perkowski; I. Porras; J. Praena; J. M. Quesada; D. Radeck; T. Rauscher; R. Reifarth; F. Rocchi; C. Rubbia; J. A. Ryan; M. Sabaté-Gilarte; A. Saxena; P. Schillebeeckx; D. Schumann; P. Sedyshev; A. G. Smith; N. V. Sosnin; A. Stamatopoulos; G. Tagliente; J. L Tain; A.  Tarifeño-Saldivia; L Tassan-Got; S. Valenta; G. Vannini; V. Variale; P. Vaz; A. Ventura; V. Vlachoudis; R. Vlastou; A. Wallner; S. Warren; C. Weiss; P. J. Woods; T. Wright; P. Žugec

doi:10.1051/epjconf/202023901041

All issues

Volume 239 (2020)

EPJ Web Conf., 239 (2020) 01041

Abstract

Open Access

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


Article Number		01041
Number of page(s)		4
Section		Nuclear Reaction Measurements
DOI		https://doi.org/10.1051/epjconf/202023901041
Published online		30 September 2020

EPJ Web of Conferences 239, 01041 (2020)
https://doi.org/10.1051/epjconf/202023901041

Measurement and analysis of ^155,157Gd(n,γ) from thermal energy to 1 keV

C. Massimi¹^,2^*, O. Aberle³, J. Andrzejewski⁴, L. Audouin⁵, M. Bacak⁶^,3^,7, J. Balibrea⁸, M. Barbagallo⁹, F. Bečvář¹⁰, E. Berthoumieux⁷, J. Billowes¹¹, D. Bosnar¹², A. Brown¹³, M. Caamaño¹⁴, F. Calviño¹⁵, M. Calviani³, D Cano-Ott⁸, R. Cardella³, A. Casanovas¹⁵, D. M. Castelluccio¹⁶^,1, F. Cerutti³, Y. H. Chen⁵, E. Chiaveri³^,11^,17, G. Clai¹⁶, N. Colonna⁹, P. Console Camprini¹⁶, G. Cortés¹⁵, M. A. Cortés-Giraldo¹⁷, L. Cosentino¹⁸, L. A. Damone⁹^,19, M. Diakaki⁷, C Domingo-Pardo²⁰, R. Dressler²¹, E. Dupont⁷, I. Durán¹⁴, B. Fernández-Domínguez¹⁴, A. Ferrari³, P. Ferreira²², P. Finocchiaro¹⁸, V. Furman²³, K. Göbel²⁴, A. R. García⁸, A. Gawlik⁴, S. Gilardoni³, T. Glodariu^†25, I. F. Gonçalves²², E. González-Romero⁸, E. Griesmayer⁶, C. Guerrero¹⁷, A. Guglielmelli¹⁶, F. Gunsing⁷^,3, H. Harada²⁶, S. Heinitz²¹, J. Heyse²⁷, D. G. Jenkins¹³, E. Jericha⁶, F. Käppeler²⁸, Y. Kadi³, A. Kalamara²⁹, P. Kavrigin⁶, A. Kimura²⁶, N. Kivel²¹, I. Knapova¹⁰, M. Kokkoris²⁹, M. Krtička¹⁰, D. Kurtulgil²⁴, E Leal-Cidoncha¹⁴, C. Lederer³⁰, H. Leeb⁶, J Lerendegui-Marco¹⁷, S. J. Lonsdale³⁰, D. Macina³, A. Manna¹^,2, J. Marganiec⁴, T. Martínez⁸, A. Masi³, P. Mastinu³², M. Mastromarco⁹, E. A. Maugeri²¹, A. Mazzone⁹^,33, E. Mendoza⁸, A. Mengoni¹⁶, P. M. Milazzo³⁴, F. Mingrone³, R. Mucciola¹^,2, A. Musumarra¹⁸^,35, A. Negret²⁴, R. Nolte³¹, A. Oprea²⁴, N. Patronis³⁶, A. Pavlik³⁷, J. Perkowski⁴, I. Porras³⁸, J. Praena³⁸, J. M. Quesada¹⁷, D. Radeck³¹, T. Rauscher³⁹^,40, R. Reifarth²⁴, F. Rocchi¹⁶, C. Rubbia³, J. A. Ryan¹¹, M. Sabaté-Gilarte³^,17, A. Saxena⁴¹, P. Schillebeeckx²⁷, D. Schumann²¹, P. Sedyshev²³, A. G. Smith¹¹, N. V. Sosnin¹¹, A. Stamatopoulos²⁹, G. Tagliente⁹, J. L Tain²⁰, A. Tarifeño-Saldivia¹⁵, L Tassan-Got⁵, S. Valenta¹⁰, G. Vannini¹^,2, V. Variale⁹, P. Vaz²², A. Ventura¹, V. Vlachoudis³, R. Vlastou²⁹, A. Wallner⁴², S. Warren¹¹, C. Weiss⁶, P. J. Woods³⁰, T. Wright¹¹, P. Žugec¹²^,3 and the n_TOF Collaboration

¹ Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
² Dipartimento di Fisica e Astronomia, Università di Bologna, Italy
³ European Organization for Nuclear Research (CERN), Switzerland
⁴ University of Lodz, Poland
⁵ Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
⁶ Technische Universität Wien, Austria
⁷ CEA Irfu, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
⁸ Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Spain
⁹ Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
¹⁰ Charles University, Prague, Czech Republic
¹¹ University of Manchester, United Kingdom
¹² Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
¹³ University of York, United Kingdom
¹⁴ University of Santiago de Compostela, Spain
¹⁵ Universitat Politècnica de Catalunya, Spain
¹⁶ Agenzia nazionale per le nuove tecnologie (ENEA), Bologna, Italy
¹⁷ Universidad de Sevilla, 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 European Commission, Joint Research Centre, Geel, Retieseweg 111, B-2440 Geel, Belgium
²⁸ Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany
²⁹ National Technical University of Athens, Greece
³⁰ School of Physics and Astronomy, University of Edinburgh, United Kingdom
³¹ Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
³² Istituto Nazionale di Fisica Nucleare, Sezione di Legnaro, Italy
³³ Consiglio Nazionale delle Ricerche, Bari, Italy
³⁴ Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
³⁵ Dipartimento di Fisica e Astronomia, Università di Catania, Italy
³⁶ University of Ioannina, Greece
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 Australian National University, Canberra, Australia

^* e-mail: massimi@bo.infn.it

Published online: 30 September 2020

Abstract

We have measured the capture cross section of the ¹⁵⁵Gd and ¹⁵⁷Gd isotopes between 0.025 eV and 1 keV. The capture events were recorded by an array of 4 C₆D₆ detectors, and the capture yield was deduced exploiting the total energy detection system in combination with the Pulse Height Weighting Techniques. Because of the large cross section around thermal neutron energy, 4 metallic samples of different thickness were used to prevent problems related to self-shielding. The samples were isotopically enriched, with a cross contamination of the other isotope of less than 1.14%. The capture yield was analyzed with an R-Matrix code to describe the cross section in terms of resonance parameters. Near thermal energies, the results are significantly different from evaluations and from previous time-of-flight experiments. The data from the present measurement at n_TOF are publicly available in the experimental nuclear reaction database EXFOR.

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