CERN Accelerating science

Article
Report number	arXiv:2411.18969
Title	Towards a new generation of solid total-energy detectors for neutron-capture time-of-flight experiments with intense neutron beams
Author(s)	Balibrea-Correa, J. (Valencia U. ; Valencia U., IFIC) ; Babiano-Suarez, V. (Valencia U. ; Barcelona, Polytechnic U.) ; Lerendegui-Marco, J. (Valencia U. ; Valencia U., IFIC) ; Domingo-Pardo, C. (Valencia U. ; Valencia U., IFIC) ; Ladarescu, I. (Valencia U. ; Valencia U., IFIC) ; Tarifeño-Saldivia, A. (Valencia U. ; Valencia U., IFIC) ; de la Fuente-Rosales, G. (Valencia U. ; Valencia U., IFIC) ; Gameiro, B. (Valencia U. ; Valencia U., IFIC) ; Zaitseva, N. (LLNL, Livermore) ; Alcayne, V. (Madrid, CIEMAT) ; Cano-Ott, D. (Madrid, CIEMAT) ; González-Romero, E. (Madrid, CIEMAT) ; Martínez, T. (Madrid, CIEMAT) ; Mendoza, E. (Madrid, CIEMAT) ; de Rada, A. Pérez (Madrid, CIEMAT) ; del Olmo, J. Plaza (Madrid, CIEMAT) ; Sánchez-Caballero, A. (Madrid, CIEMAT) ; Casanovas, A. (Barcelona, Polytechnic U.) ; Calviño, F. (Barcelona, Polytechnic U.) ; Valenta, S. (Charles U.) ; Aberle, O. (CERN) ; Altieri, S. (INFN, Pavia ; Brescia U. ; Pavia U.) ; Amaducci, S. (INFN, Catania) ; Andrzejewski, J. (Lodz U.) ; Bacak, M. (CERN) ; Beltrami, C. (INFN, Pavia ; Brescia U.) ; Bennett, S. (Manchester U.) ; Bernardes, A.P. (CERN) ; Berthoumieux, E. (IRFU, Saclay) ; Beyer, R. (HZDR, Dresden) ; Boromiza, M. (Bucharest, IFIN-HH) ; Bosnar, D. (Zagreb U., Phys. Dept.) ; Caamaño, M. (Santiago de Compostela U.) ; Calviani, M. (CERN) ; Castelluccio, D.M. (ENEA, Casaccia ; INFN, Bologna) ; Cerutti, F. (CERN) ; Cescutti, G. (INFN, Trieste ; Trieste U.) ; Chasapoglou, S. (Natl. Tech. U., Athens) ; Chiaveri, E. (CERN ; Manchester U.) ; Colombetti, P. (INFN, Turin ; Turin U.) ; Colonna, N. (INFN, Bari) ; Camprini, P. Console (INFN, Bologna ; ENEA, Casaccia) ; Cortés, G. (Barcelona, Polytechnic U.) ; Cortés-Giraldo, M.A. (Seville U.) ; Cosentino, L. (INFN, Catania) ; Cristallo, S. (INFN, Perugia ; Palermo Observ.) ; Dellmann, S. (Goethe U., Frankfurt (main)) ; Di Castro, M. (CERN) ; Di Maria, S. (Lisbon, IST) ; Diakaki, M. (Natl. Tech. U., Athens) ; Dietz, M. (Braunschweig, Phys. Tech. Bund.) ; Dressler, R. (PSI, Villigen) ; Dupont, E. (IRFU, Saclay) ; Durán, I. (Santiago de Compostela U.) ; Eleme, Z. (Ioannina U.) ; Fargier, S. (CERN) ; Fernández, B. (Seville U.) ; Fernández-Domínguez, B. (Santiago de Compostela U.) ; Finocchiaro, P. (INFN, Catania) ; Fiore, S. (ENEA, Casaccia ; INFN, Rome) ; Furman, V. (Higher Sch. of Economics, Moscow) ; García-Infantes, F. (Granada U. ; CERN) ; Gawlik-Ramikega, A. (Lodz U.) ; Gervino, G. (INFN, Turin ; Turin U.) ; Gilardoni, S. (CERN) ; Guerrero, C. (Seville U.) ; Gunsing, F. (IRFU, Saclay) ; Gustavino, C. (INFN, Rome) ; Heyse, J. (Geel, JRC) ; Hillman, W. (Manchester U.) ; Jenkins, D.G. (York U., England) ; Jericha, E. (Vienna, Tech. U., Atominst.) ; Junghans, A. (HZDR, Dresden) ; Kadi, Y. (CERN) ; Kaperoni, K. (Natl. Tech. U., Athens) ; Kaur, G. (IRFU, Saclay) ; Kimura, A. (JAEA, Ibaraki) ; Knapová, I. (Charles U.) ; Kokkoris, M. (Natl. Tech. U., Athens) ; Kopatch, Y. (Unlisted) ; Krtička, M. (Charles U.) ; Kyritsis, N. (Natl. Tech. U., Athens) ; Lederer-Woods, C. (Edinburgh U.) ; Lerner, G. (CERN) ; Manna, A. (INFN, Bologna ; U. Bologna, DIFA) ; Masi, A. (CERN) ; Massimi, C. (INFN, Bologna ; U. Bologna, DIFA) ; Mastinu, P. (INFN, Legnaro) ; Mastromarco, M. (INFN, Bari ; Bari U.) ; Maugeri, E.A. (PSI, Villigen) ; Mazzone, A. (INFN, Bari ; CNR, INO, Pisa) ; Mengoni, A. (ENEA, Casaccia ; INFN, Bologna) ; Michalopoulou, V. (Natl. Tech. U., Athens) ; Milazzo, P.M. (INFN, Trieste) ; Mucciola, R. (INFN, Perugia ; U. Perugia (main)) ; Murtas, F. (Frascati) ; Musacchio-Gonzalez, E. (INFN, Legnaro) ; Musumarra, A. (INFN, Catania ; U. Catania (main)) ; Negret, A. (Bucharest, IFIN-HH) ; Pérez-Maroto, P. (Seville U.) ; Patronis, N. (Ioannina U. ; CERN) ; Pavón-Rodríguez, J.A. (Seville U. ; CERN) ; Pellegriti, M.G. (INFN, Catania) ; Perkowski, J. (Lodz U.) ; Petrone, C. (Bucharest, IFIN-HH) ; Pirovano, E. (Braunschweig, Phys. Tech. Bund.) ; Pomp, S. (Uppsala U.) ; Porras, I. (Granada U.) ; Praena, J. (Granada U.) ; Quesada, J.M. (Seville U.) ; Reifarth, R. (Goethe U., Frankfurt (main)) ; Rochman, D. (PSI, Villigen) ; Romanets, Y. (Lisbon, IST) ; Rubbia, C. (CERN) ; Sabaté-Gilarte, M. (CERN) ; Schillebeeckx, P. (Geel, JRC) ; Schumann, D. (PSI, Villigen) ; Sekhar, A. (Manchester U.) ; Smith, A.G. (Manchester U.) ; Sosnin, N.V. (Edinburgh U.) ; Stamati, M.E. (Ioannina U. ; CERN) ; Sturniolo, A. (INFN, Turin) ; Tagliente, G. (INFN, Bari) ; Tarrío, D. (Uppsala U.) ; Torres-Sánchez, P. (Granada U.) ; Vagena, E. (Ioannina U.) ; Variale, V. (INFN, Bari) ; Vaz, P. (Lisbon, IST) ; Vecchio, G. (INFN, Catania) ; Vescovi, D. (Goethe U., Frankfurt (main)) ; Vlachoudis, V. (CERN) ; Vlastou, R. (Natl. Tech. U., Athens) ; Wallner, A. (HZDR, Dresden) ; Woods, P.J. (Edinburgh U.) ; Wright, T. (Manchester U.) ; Zarrella, R. (INFN, Bologna ; U. Bologna, DIFA) ; Žugec, P. (Zagreb U., Phys. Dept.)
Publication	2024-11-30
Imprint	2024-11-28
Number of pages	24
In:	Nucl. Instrum. Methods Phys. Res., A 1072 (2025) 170110
DOI	10.1016/j.nima.2024.170110 (publication)
Subject category	nucl-ex ; Nuclear Physics - Experiment ; physics.ins-det ; Detectors and Experimental Techniques
Abstract	Challenging neutron-capture cross-section measurements of small cross sections and samples with a very limited number of atoms require high-flux time-of-flight facilities. In turn, such facilities need innovative detection setups that are fast, have low sensitivity to neutrons, can quickly recover from the so-called $\gamma$-flash, and offer the highest possible detection sensitivity. In this paper, we present several steps toward such advanced systems. Specifically, we describe the performance of a high-sensitivity experimental setup at CERN n_TOF EAR2. It consists of nine sTED detector modules in a compact cylindrical configuration, two conventional used large-volume C$_{6}$D$_{6}$ detectors, and one LaCl$_{3}$(Ce) detector. The performance of these detection systems is compared using $^{93}$Nb($n$,$\gamma$) data. We also developed a detailed \textsc{Geant4} Monte Carlo model of the experimental EAR2 setup, which allows for a better understanding of the detector features, including their efficiency determination. This Monte Carlo model has been used for further optimization, thus leading to a new conceptual design of a $\gamma$ detector array, STAR, based on a deuterated-stilbene crystal array. Finally, the suitability of deuterated-stilbene crystals for the future STAR array is investigaged experimentally utilizing a small stilbene-d12 prototype. The results suggest a similar or superior performance of STAR with respect to other setups based on liquid-scintillators, and allow for additional features such as neutron-gamma discrimination and a higher level of customization capability.
Copyright/License	preprint: (License: CC BY-NC-ND 4.0) publication: © 2024 The Authors (License: CC BY-NC-ND 4.0)

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