Imaging neutron capture cross sections: i-TED proof-of-concept and future prospects based on Machine-Learning techniques
Creators: name: Babiano-Suárez, V.
name: Lerendegui-Marco, J.
name: Balibrea-Correa, J.
name: Caballero, L.
name: Calvo, D.
name: Ladarescu, I.
name: Domingo-Pardo, C.
name: Calviño, F.
name: Casanovas, A.
name: Tarifeño-Saldivia, A.
name: Alcayne, V.
name: Guerrero, C.
name: Millán-Callado, M. A.
name: González, M. T. Rodríguez
name: Barbagallo, M.
name: Aberle, O.
name: Amaducci, S.
name: Andrzejewski, J.
name: Audouin, L.
name: Bacak, M.
name: Bennett, S.
name: Berthoumieux, E.
name: Billowes, J.
name: Bosnar, D.
name: Brown, A.
name: Busso, M.
name: Caamaño, M.
name: Calviani, M.
name: Cano-Ott, D.
name: Cerutti, F.
name: Chiaveri, E.
name: Colonna, N.
name: Cortés, G.
name: Cortés-Giraldo, M. A.
name: Cosentino, L.
name: Cristallo, S.
name: Damone, L. A.
name: Davies, P. J.
name: Diakaki, M.
name: Dietz, M.
name: Dressler, R.
name: Ducasse, Q.
name: Dupont, E.
name: Durán, I.
name: Eleme, Z.
name: Fern\', B.
name: Ez-Domínguez
name: Ferrari, A.
name: Finocchiaro, P.
name: Furman, V.
name: Göbel, K.
name: Garg, R.
name: Gawlik, A.
name: Gilardoni, S.
name: Gonçalves, I. F.
name: González-Romero, E.
name: Gunsing, F.
name: Harada, H.
name: Heinitz, S.
name: Heyse, J.
name: Jenkins, D. G.
name: Junghans, A.
name: Käppeler, F.
name: Kadi, Y.
name: Kimura, A.
name: Knapova, I.
name: Kokkoris, M.
name: Kopatch, Y.
name: Krtička, M.
name: Kurtulgil, D.
name: Lederer-Woods, C.
name: Leeb, H.
name: Lonsdale, S. J.
name: Macina, D.
name: Manna, A.
name: Martinez, T.
name: Masi, A.
name: Massimi, C.
name: Mastinu, P.
name: Mastromarco, M.
name: Maugeri, E. A.
name: Mazzone, A.
name: Mendoza, E.
name: Mengoni, A.
name: Michalopoulou, V.
name: Milazzo, P. M.
name: Mingrone, F.
name: Moreno-Soto, J.
name: Musumarra, A.
name: Negret, A.
name: Ogállar, F.
name: Oprea, A.
name: Patronis, N.
name: Pavlik, A.
name: Perkowski, J.
name: Persanti, L.
name: Petrone, C.
name: Pirovano, E.
name: Porras, I.
name: Praena, J.
name: Quesada, J. M.
name: Ramos-Doval, D.
name: Rauscher, T.
name: Reifarth, R.
name: Rochman, D.
name: Rubbia, C.
name: Sabaté-Gilarte, M.
name: Saxena, A.
name: Schillebeeckx, P.
name: Schumann, D.
name: Sekhar, A.
name: Smith, A. G.
name: Sosnin, N. V.
name: Sprung, P.
name: Stamatopoulos, A.
name: Tagliente, G.
name: Tain, J. L.
name: Tassan-Got, L.
name: Thomas, Th.
name: Torres-Sánchez, P.
name: Tsinganis, A.
name: Ulrich, J.
name: Urlass, S.
name: Valenta, S.
name: Vannini, G.
name: Variale, V.
name: Vaz, P.
name: Ventura, A.
name: Vescovi, D.
name: Vlachoudis, V.
name: Vlastou, R.
name: Wallner, A.
name: Woods, P. J.
name: Wright, T.
name: Žugec, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: i-TED is an innovative detection system which exploits Compton imaging techniques to achieve a superior signal-to-background ratio in ($n,γ$) cross-section measurements using time-of-flight technique. This work presents the first experimental validation of the i-TED apparatus for high-resolution time-of-flight experiments and demonstrates for the first time the concept proposed for background rejection. To this aim both $^{197}$Au($n,γ$) and $^{56}$Fe($n, γ$) reactions were measured at CERN n\_TOF using an i-TED demonstrator based on only three position-sensitive detectors. Two \cds detectors were also used to benchmark the performance of i-TED. The i-TED prototype built for this study shows a factor of $\sim$3 higher detection sensitivity than state-of-the-art \cds detectors in the $\sim$10~keV neutron energy range of astrophysical interest. This paper explores also the perspectives of further enhancement in performance attainable with the final i-TED array consisting of twenty position-sensitive detectors and new analysis methodologies based on Machine-Learning techniques.
description: 16 pages, 16 figures