New detection systems for an enhanced sensitivity in key stellar (n,γ) measurements

J. Lerendegui-Marco; V. Babiano-Suárez; J. Balibrea-Correa; C. Domingo-Pardo; I. Ladarescu; A. Tarifeño-Saldivia; V. Alcayne; D. Cano-Ott; E. González-Romero; T. Martínez; E. Mendoza; C. Guerrero; F. Calviño; A. Casanovas; U. Köster; N. M. Chiera; R. Dressler; E. A. Maugeri; D. Schumann; O. Aberle; S. Altieri; S. Amaducci; J. Andrzejewski; M. Bacak; C. Beltrami; S. Bennett; A. P. Bernardes; E. Berthoumieux; R. Beyer; M. Boromiza; D. Bosnar; M. Caamaño; M. Calviani; F. Cerutti; G. Cescutti; E. Chiaveri; P. Colombetti; N. Colonna; P. Console Camprini; G. Cortés; M. A. Cortés-Giraldo; L. Cosentino; S. Cristallo; S. Dellmann; M. Di Castro; S. Di Maria; M. Diakaki; M. Dietz; E. Dupont; I. Durán; Z. Eleme; S. Fargier; B. Fernández; B. Fernández-Domínguez; P. Finocchiaro; S. Fiore; F. García-Infantes; A. Gawlik-Ramięga; G. Gervino; S. Gilardoni; F. Gunsing; C. Gustavino; J. Heyse; W. Hillman; D. G. Jenkins; E. Jericha; A. Junghans; Y. Kadi; K. Kaperoni; G. Kaur; A. Kimura; I. Knapová; M. Kokkoris; M. Krtička; N. Kyritsis; C. Lederer-Woods; G. Lerner; A. Manna; A. Masi; C. Massimi; P. Mastinu; M. Mastromarco; A. Mazzone; A. Mengoni; V. Michalopoulou; P. M. Milazzo; R. Mucciola; F. Murtas; E. Musacchio-Gonzalez; A. Musumarra; A. Negret; A. Pérez de Rada; P. Pérez-Maroto; N. Patronis; J. A. Pavón-Rodríguez; M. G. Pellegriti; J. Perkowski; C. Petrone; E. Pirovano; J. Plaza; S. Pomp; I. Porras; J. Praena; J. M. Quesada; R. Reifarth; D. Rochman; Y. Romanets; C. Rubbia; A. Sánchez-Caballero; M. Sabaté-Gilarte; P. Schillebeeckx; A. Sekhar; A. G. Smith; N. V. Sosnin; M. E. Stamati; A. Sturniolo; G. Tagliente; D. Tarrío; P. Torres-Sánchez; E. Vagena; S. Valenta; V. Variale; P. Vaz; G. Vecchio; D. Vescovi; V. Vlachoudis; R. Vlastou; A. Wallner; P. J. Woods; T. Wright; R. Zarrella; P. Žugec

doi:10.1051/epjconf/202327913001

All issues

Volume 279 (2023)

EPJ Web Conf., 279 (2023) 13001

Abstract

Open Access

Issue		EPJ Web Conf. Volume 279, 2023 Nuclear Physics in Astrophysics – X (NPA-X 2022)


Article Number		13001
Number of page(s)		7
Section		Methods / Facilities
DOI		https://doi.org/10.1051/epjconf/202327913001
Published online		22 March 2023

EPJ Web of Conferences 279, 13001 (2023)
https://doi.org/10.1051/epjconf/202327913001

New detection systems for an enhanced sensitivity in key stellar (n,γ) measurements

J. Lerendegui-Marco¹^*, V. Babiano-Suárez¹, J. Balibrea-Correa¹, C. Domingo-Pardo¹, I. Ladarescu¹, A. Tarifeño-Saldivia¹, V. Alcayne², D. Cano-Ott², E. González-Romero², T. Martínez², E. Mendoza², C. Guerrero³, F. Calviño⁴, A. Casanovas⁴, U. Köster⁵, N. M. Chiera⁶, R. Dressler⁶, E. A. Maugeri⁶, D. Schumann⁶, O. Aberle⁷, S. Altieri⁸^,9, S. Amaducci¹⁰, J. Andrzejewski¹¹, M. Bacak⁷, C. Beltrami⁸, S. Bennett¹², A. P. Bernardes⁷, E. Berthoumieux¹³, R. Beyer¹⁴, M. Boromiza¹⁵, D. Bosnar¹⁶, M. Caamaño¹⁷, M. Calviani⁷, F. Cerutti⁷, G. Cescutti¹⁸^,19, E. Chiaveri⁷^,12, P. Colombetti²⁰^,21, N. Colonna²², P. Console Camprini²³^,24, G. Cortés⁴, M. A. Cortés-Giraldo³, L. Cosentino¹⁰, S. Cristallo²⁵^,26, S. Dellmann²⁷, M. Di Castro⁷, S. Di Maria²⁸, M. Diakaki²⁹, M. Dietz³⁰, E. Dupont¹³, I. Durán¹⁷, Z. Eleme³¹, S. Fargier⁷, B. Fernández³, B. Fernández-Domínguez¹⁷, P. Finocchiaro¹⁰, S. Fiore²⁴^,32, F. García-Infantes³³, A. Gawlik-Ramięga¹¹, G. Gervino²⁰^,21, S. Gilardoni⁷, F. Gunsing¹³, C. Gustavino³², J. Heyse³⁴, W. Hillman¹², D. G. Jenkins³⁵, E. Jericha³⁶, A. Junghans¹⁴, Y. Kadi⁷, K. Kaperoni²⁹, G. Kaur¹³, A. Kimura³⁷, I. Knapová³⁸, M. Kokkoris²⁹, M. Krtička³⁸, N. Kyritsis²⁹, C. Lederer-Woods³⁹, G. Lerner⁷, A. Manna²³^,40, A. Masi⁷, C. Massimi²³^,40, P. Mastinu⁴¹, M. Mastromarco²²^,42, A. Mazzone²²^,43, A. Mengoni²⁴^,23, V. Michalopoulou²⁹, P. M. Milazzo¹⁸, R. Mucciola²⁵^,44, F. Murtas⁴⁵^†, E. Musacchio-Gonzalez⁴¹, A. Musumarra⁴⁶^,47, A. Negret¹⁵, A. Pérez de Rada², P. Pérez-Maroto³, N. Patronis³¹, J. A. Pavón-Rodríguez³, M. G. Pellegriti⁴⁶, J. Perkowski¹¹, C. Petrone¹⁵, E. Pirovano³⁰, J. Plaza², S. Pomp⁴⁸, I. Porras³³, J. Praena³³, J. M. Quesada³, R. Reifarth²⁷, D. Rochman⁶, Y. Romanets²⁸, C. Rubbia⁷, A. Sánchez-Caballero², M. Sabaté-Gilarte⁷, P. Schillebeeckx³⁴, A. Sekhar¹², A. G. Smith¹², N. V. Sosnin³⁹, M. E. Stamati³¹, A. Sturniolo²⁰, G. Tagliente²², D. Tarrío⁴⁸, P. Torres-Sánchez³³, E. Vagena³¹, S. Valenta³⁸, V. Variale²², P. Vaz²⁸, G. Vecchio¹⁰, D. Vescovi²⁷, V. Vlachoudis⁷, R. Vlastou²⁹, A. Wallner¹⁴, P. J. Woods³⁹, T. Wright¹², R. Zarrella²³^,40 and P. Žugec¹⁶ and the n_TOF Collaboration

¹ Instituto de Física Corpuscular, CSIC Universidad de Valencia, Spain
² Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Spain
³ Universidad de Sevilla, Spain
⁴ Universitat Politècnica de Catalunya, Spain
⁵ Institut Laue Langevin (ILL), Grenoble, France
⁶ Paul Scherrer Institut (PSI), Villigen, Switzerland
⁷ European Organization for Nuclear Research (CERN), Switzerland
⁸ Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, Italy
⁹ Department of Physics, University of Pavia, Italy
¹⁰ INFN Laboratori Nazionali del Sud, Catania, Italy
¹¹ University of Lodz, Poland
¹² University of Manchester, United Kingdom
¹³ CEA Irfu, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
¹⁴ Helmholtz-Zentrum Dresden-Rossendorf, Germany
¹⁵ Horia Hulubei National Institute of Physics and Nuclear Engineering, Romania
¹⁶ Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
¹⁷ University of Santiago de Compostela, Spain
¹⁸ Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
¹⁹ Department of Physics, University of Trieste, Italy
²⁰ Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Italy
²¹ Department of Physics, University of Torino, Italy
²² Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
²³ Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
²⁴ Agenzia nazionale per le nuove tecnologie (ENEA), Italy
²⁵ Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Italy
²⁶ Istituto Nazionale di Astrofisica Osservatorio Astronomico di Teramo, Italy
²⁷ Goethe University Frankfurt, Germany
²⁸ Instituto Superior Técnico, Lisbon, Portugal
²⁹ National Technical University of Athens, Greece
³⁰ Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
³¹ University of Ioannina, Greece
³² Istituto Nazionale di Fisica Nucleare, Sezione di Roma1, Roma, Italy
³³ University of Granada, Spain
³⁴ European Commission, Joint Research Centre (JRC), Geel, Belgium
³⁵ University of York, United Kingdom
³⁶ TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria
³⁷ Japan Atomic Energy Agency (JAEA), Tokai-Mura, Japan
³⁸ Charles University, Prague, Czech Republic
³⁹ School of Physics and Astronomy, University of Edinburgh, United Kingdom
⁴⁰ Dipartimento di Fisica e Astronomia, Università di Bologna, Italy
⁴¹ INFN Laboratori Nazionali di Legnaro, Italy
⁴² Dipartimento Interateneo di Fisica, Università degli Studi di Bari, Italy
⁴³ Consiglio Nazionale delle Ricerche, Bari, Italy
⁴⁴ Dipartimento di Fisica e Geologia, Università di Perugia, Italy
⁴⁵ INFN Laboratori Nazionali di Frascati, Italy
⁴⁶ Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Italy
⁴⁷ Department of Physics and Astronomy, University of Catania, Italy
⁴⁸ Uppsala University, Sweden

^* e-mail: jorge.lerendegui@ific.uv.es
^† deceased

Published online: 22 March 2023

Abstract

Neutron capture cross-section measurements are fundamental in the study of astrophysical phenomena, such as the slow neutron capture (s-) process of nucleosynthesis operating in red-giant and massive stars. However, neutron capture measurements via the time-of-flight (TOF) technique on key s-process nuclei are often challenging. Difficulties arise from the limited mass (∼mg) available and the high sample-related background in the case of the unstable s-process branching points. Measurements on neutron magic nuclei, that act as s-process bottlenecks, are affected by low (n,γ) cross sections and a dominant neutron scattering background. Overcoming these experimental challenges requires the combination of facilities with high instantaneous flux, such as n_TOFEAR2, with detection systems with an enhanced detection sensitivity and high counting rate capabilities. This contribution reviews some of the latest detector developments in detection systems for (n,γ) measurements at n_TOF, such as i-TED, an innovative detection system which exploits the Compton imaging technique to reduce the dominant neutron scattering background and s-TED, a highly segmented total energy detector intended for high flux facilities. The discussion will be illustrated with results of the first measurement of key the s-process branching-point reaction ⁷⁹Se(n,γ).

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