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1. Status report of the n_TOF facility after the 2nd CERN long shutdown period

Author: N. Patronis, A. Mengoni, S. Goula, O. Aberle, V. Alcayne, S. Altieri, S. Amaducci, J. Andrzejewski, V. Babiano-Suarez, M. Bacak, J. Balibrea Correa, C. Beltrami, S. Bennett, A. P. Bernardes, E. Berthoumieux, R. Beyer, M. Boromiza, D. Bosnar, M. Caamaño, F. Calviño, M. Calviani, D. Cano-Ott, A. Casanovas, D. M. Castelluccio, F. Cerutti, G. Cescutti, S. Chasapoglou, 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, C. Domingo-Pardo, R. Dressler, E. Dupont, I. Durán, Z. Eleme, S. Fargier, B. Fernández, B. Fernández-Domínguez, P. Finocchiaro, S. Fiore, F. García-Infantes, A. Gawlik-Ramiega, G. Gervino, S. Gilardoni, E. González-Romero, C. Guerrero, 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, I. Ladarescu, C. Lederer-Woods, J. Lerendegui-Marco, G. Lerner, A. Manna, T. Martínez, A. Masi, C. Massimi, P. Mastinu, M. Mastromarco, E. A. Maugeri, A. Mazzone, E. Mendoza, V. Michalopoulou, P. M. Milazzo, R. Mucciola, F. Murtas, E. Musacchio-Gonzalez, A. Musumarra, A. Negret, A. Pérez de Rada, P. Pérez-Maroto, J. A. Pavón-Rodríguez, M. G. Pellegriti, J. Perkowski, C. Petrone, E. Pirovano, J. Plaza del Olmo, 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, D. Schumann, A. Sekhar, A. G. Smith, N. V. Sosnin, M. E. Stamati, A. Sturniolo, G. Tagliente, A. Tarifeño-Saldivia, 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, R. Zarrella, and P. Zugec
Subjects: Neutron time of flight, Spallation target, Nuclear astrophysics, Neutron physics, Neutron induced fission, Neutron reactions, Physics, QC1-999, Optics. Light, QC350-467, Descriptive and experimental mechanics, QC120-168.85
Abstract: Abstract During the second long shutdown period of the CERN accelerator complex (LS2, 2019-2021), several upgrade activities took place at the n_TOF facility. The most important have been the replacement of the spallation target with a next generation nitrogen-cooled lead target. Additionally, a new experimental area, at a very short distance from the target assembly (the NEAR Station) was established. In this paper, the core commissioning actions of the new installations are described. The improvement in the n_TOF infrastructure was accompanied by several detector development projects. All these upgrade actions are discussed, focusing mostly on the future perspectives of the n_TOF facility. Furthermore, some indicative current and future measurements are briefly reported.
Published: 2023
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2. Neutron-induced cross section measurements

Author: C. Massimi, O. Aberle, V. Alcayne, S. Altieri, S. Amaducci, J. Andrzejewski, V. Babiano-Suarez, M. Bacak, J. Balibrea, C. Beltrami, S. Bennett, A. P. Bernardes, E. Berthoumieux, M. Boromiza, D. Bosnar, M. Caamaño, F. Calviño, M. Calviani, D. Cano-Ott, A. Casanovas, D. M. Castelluccio, F. Cerutti, G. Cescutti, S. Chasapoglou, 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, C. Domingo-Pardo, R. Dressler, E. Dupont, I. Durán, Z. Eleme, S. Fargier, B. Fernández, B. Fernández-Domínguez, P. Finocchiaro, S. Fiore, V. Furman, F. GarcíaInfantes, A. Gawlik-Ramięga, G. Gervino, S. Gilardoni, E. González-Romero, C. Guerrero, 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, Y. Kopatch, M. Krtička, N. Kyritsis, I. Ladarescu, C. Lederer-Woods, J. Lerendegui-Marco, G. Lerner, A. Manna, T. Martínez, A. Masi, P. Mastinu, M. Mastromarco, E. A. Maugeri, A. Mazzone, E. Mendoza, 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, M. Sabaté-Gilarte, P. Schillebeeckx, D. Schumann, A. Sekhar, A. G. Smith, N. V. Sosnin, M. E. Stamati, A. Sturniolo, G. Tagliente, D. Tarrío, P. Torres-Sánchez, S. Urlass, 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, Freeman, S., Lederer-Woods, C., Manna, A., and Mengoni, A.
Subjects: Subatomär fysik, cross section, n_TOF, neutron time of flight, Subatomic Physics, General Medicine
Abstract: Neutron-induced cross sections represent the main nuclear input to models of stellar and Big-Bang nucleosynthesis. While (n,γ) reactions are relevant for the formation of elements heavier than iron, (n,p) and (n,α) reactions can play an important role in specific cases. The time-of-flight method is routinely used at n_TOF to experimentally determine the cross section data. In addition, recent upgrades of the facility will allow the use of activation techniques as well, possibly opening the way to a systematic study of neutron interaction with radioactive isotopes. In the last 20 years n_TOF has provided a large amount of experimental data for Nuclear Astrophysics. Our plan is to carry on challenging measurements and produce nuclear data in the next decades as well.
Published: 2023

3. Constraints on the dipole photon strength for the odd uranium isotopes

Author: J. Moreno-Soto, S. Valenta, E. Berthoumieux, A. Chebboubi, M. Diakaki, W. Dridi, E. Dupont, F. Gunsing, M. Krti( (c))ka, O. Litaize, O. Serot, O. Aberle, V. Alcayne, S. Amaducci, J. Andrzejewski, L. Audouin, V. B('(e))cares, V. Babiano-Suarez, M. Bacak, M. Barbagallo, Th. Benedikt, S. Bennett, J. Billowes, D. Bosnar, A. Brown, M. Busso, M. Caama(~(n))o, L. Caballero-Ontanaya, F. Calvi(~(n))o, M. Calviani, D. Cano-Ott, A. Casanovas, F. Cerutti, E. Chiaveri, N. Colonna, G. Cort('(e))s, M. A. Cort('(e))s-Giraldo, L. Cosentino, S. Cristallo, L. A. Damone, P. J. Davies, M. Dietz, C. Domingo-Pardo, R. Dressler, Q. Ducasse, I. Dur('(a))n, Z. Eleme, B. Fern('(a))ndez-Dom('(i))nguez, A. Ferrari, P. Finocchiaro, V. Furman, K. Göbel, A. Gawlik-Rami(k(e))ga, S. Gilardoni, I. F. Gon(c(c))alves, E. Gonz('(a))lez-Romero, C. Guerrero, S. Heinitz, J. Heyse, D. G. Jenkins, A. Junghans, F. Käppeler, Y. Kadi, A. Kimura, I. Knapov('(a)), M. Kokkoris, Y. Kopatch, D. Kurtulgil, I. Ladarescu, C. Lampoudis, C. Lederer-Woods, S. J. Lonsdale, D. Macina, A. Manna, T. Mart('(i))nez, 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, R. Nolte, F. Og('(a))llar, A. Oprea, N. Patronis, A. Pavlik, J. Perkowski, L. Piersanti, C. Petrone, E. Pirovano, I. Porras, J. Praena, J. M. Quesada, D. Ramos-Doval, T. Rauscher, R. Reifarth, D. Rochman, M. Sabat('(e))-Gilarte, A. Saxena, P. Schillebeeckx, D. Schumann, A. Sekhar, A. G. Smith, N. V. Sosnin, P. Sprung, A. Stamatopoulos, G. Tagliente, J. L. Tain, A. Tarife(~(n))o-Saldivia, L. Tassan-Got, P. Torres-S('(a))nchez, 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. ( (Z))ugec and, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, CEA Cadarache, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), n_TOF, ITA, USA, GBR, FRA, DEU, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, J. Moreno-Soto, S. Valenta, E. Berthoumieux, A. Chebboubi, M. Diakaki, W. Dridi, E. Dupont, F. Gunsing, M. Krti{\v{c}}ka, O. Litaize, O. Serot, O. Aberle, V. Alcayne, S. Amaducci, J. Andrzejewski, L. Audouin, V. B{\'{e}}care, V. Babiano-Suarez, M. Bacak, M. Barbagallo, Th. Benedikt, S. Bennett, J. Billowe, D. Bosnar, A. Brown, M. Busso, M. Caama{\~{n}}o, L. Caballero-Ontanaya, F. Calvi{\~{n}}o, M. Calviani, D. Cano-Ott, A. Casanova, F. Cerutti, E. Chiaveri, N. Colonna, G. Cort{\'{e}}, M. A. Cort{\'{e}}s-Giraldo, L. Cosentino, S. Cristallo, L. A. Damone, P. J. Davie, M. Dietz, C. Domingo-Pardo, R. Dressler, Q. Ducasse, I. Dur{\'{a}}n, Z. Eleme, B. Fern{\'{a}}ndez-Dom{\'{\i}}nguez, A. Ferrari, P. Finocchiaro, V. Furman, K. Göbel, A. Gawlik-Rami{\k{e}}ga, S. Gilardoni, I. F. Gon{\c{c}}alve, E. Gonz{\'{a}}lez-Romero, C. Guerrero, S. Heinitz, J. Heyse, D. G. Jenkin, A. Junghan, F. Käppeler, Y. Kadi, A. Kimura, I. Knapov{\'{a}}, M. Kokkori, Y. Kopatch, D. Kurtulgil, I. Ladarescu, C. Lampoudi, C. Lederer-Wood, S. J. Lonsdale, D. Macina, A. Manna, T. Mart{\'{\i}}nez, 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, R. Nolte, F. Og{\'{a}}llar, A. Oprea, N. Patroni, A. Pavlik, J. Perkowski, L. Piersanti, C. Petrone, E. Pirovano, I. Porra, J. Praena, J. M. Quesada, D. Ramos-Doval, T. Rauscher, R. Reifarth, D. Rochman, M. Sabat{\'{e}}-Gilarte, A. Saxena, P. Schillebeeckx, D. Schumann, A. Sekhar, A. G. Smith, N. V. Sosnin, P. Sprung, A. Stamatopoulo, G. Tagliente, J. L. Tain, A. Tarife{\~{n}}o-Saldivia, L. Tassan-Got, P. Torres-S{\'{a}}nchez, A. Tsingani, J. Ulrich, S. Urla, G. Vannini, V. Variale, P. Vaz, A. Ventura, D. Vescovi, V. Vlachoudi, R. Vlastou, A. Wallner, P. J. Wood, T. Wright, and P. {\v{Z}}ugec and
Subjects: Física [Àrees temàtiques de la UPC], Nuclear physics, photon strength function, n_TOF, radiative capture, Nuclear Physics - Experiment, Física nuclear, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, Photon strength functions (PSFs), uranium isotopes, dipole photon strength, n_TOF, Nuclear level density (NLD)
Abstract: Nuclear level densities (NLDs) and photon strength functions (PSFs), also called ¿ -ray or radiation strength functions, represent average properties of the nucleus in the regime of excitation where individual levels and transition probabilities by ¿ decay are not readily accessible by experimental or theoretical means. They are key ingredients for statistical calculations of the reaction cross sections involving ¿ rays via the Hauser-Feshbach approach [1], like inelastic scattering or neutron capture reactions. Peer Reviewed Aquest article té 124 autors/autores J. Moreno-Soto, S. Valenta, E. Berthoumieux, A. Chebboubi, M. Diakaki, W. Dridi, E. Dupont, F. Gunsing, M. Krticka, O. Litaize, O. Serot, O. Aberle, V. Alcayne, S. Amaducci, 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, 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-Rami, S. Gilardoni, I. F. Gonçalves, E. González-RomeroC. Guerrero, S. Heinitz, J. Heyse, D. G. Jenkins, A. Junghans, F. Käppeler, Y. Kadi, A. Kimura, I. Knapová, M. Kokkoris, Y. Kopatch, D. Kurtulgil, I. Ladarescu, C. Lampoudis, 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. MingroneA. Musumarra, A. Negret, R. Nolte, F. Ogállar, A. Oprea, N. Patronis, A. Pavlik, J. Perkowski, L. Piersanti, 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, A. G. Smith, N. V. Sosnin, P. Sprung, A. Stamatopoulos, G. Tagliente, J. L. Tain, A. Tarifeño-Saldivia, L. Tassan-Got, P. Torres-Sánchez, 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
Published: 2022
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4. Evidence of a Near-Threshold Resonance in B11 Relevant to the β -Delayed Proton Emission of Be11

Author: Y. Ayyad, W. Mittig, T. Tang, B. Olaizola, G. Potel, N. Rijal, N. Watwood, H. Alvarez-Pol, D. Bazin, M. Caamaño, J. Chen, M. Cortesi, B. Fernández-Domínguez, S. Giraud, P. Gueye, S. Heinitz, R. Jain, B. P. Kay, E. A. Maugeri, B. Monteagudo, F. Ndayisabye, S. N. Paneru, J. Pereira, E. Rubino, C. Santamaria, D. Schumann, J. Surbrook, L. Wagner, J. C. Zamora, and V. Zelevinsky
Subjects: General Physics and Astronomy
Published: 2022

5. High accuracy, high resolution $^{235}$U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV

Author: M. Mastromarco, S. Amaducci, N. Colonna, P. Finocchiaro, L. Cosentino, M. Barbagallo, O. Aberle, J. Andrzejewski, L. Audouin, M. Bacak, J. Balibrea, F. Bečvář, E. Berthoumieux, J. Billowes, D. Bosnar, A. Brown, M. Caamaño, F. Calviño, M. Calviani, D. Cano-Ott, R. Cardella, A. Casanovas, F. Cerutti, Y. H. Chen, E. Chiaveri, G. Cortés, M. A. Cortés-Giraldo, L. A. Damone, M. Diakaki, C. Domingo-Pardo, D. Diacono, R. Dressler, E. Dupont, I. Durán, B. Fernández-Domínguez, A. Ferrari, P. Ferreira, V. Furman, K. Göbel, A. R. García, A. Gawlik, S. Gilardoni, T. Glodariu, I. F. Gonçalves, E. González-Romero, E. Griesmayer, C. Guerrero, 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. Lo Meo, S. J. Lonsdale, D. Macina, A. Manna, J. Marganiec, T. Martínez, A. Masi, C. Massimi, P. Mastinu, E. A. Maugeri, A. Mazzone, E. Mendoza, A. Mengoni, P. M. Milazzo, F. Mingrone, 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, 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, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Mastromarco, M, Amaducci, S, Colonna, N, Finocchiaro, P, Cosentino, L, Barbagallo, M, Aberle, O, Andrzejewski, J, Audouin, L, Bacak, M, Balibrea, J, Becvar, F, Berthoumieux, E, Billowes, J, Bosnar, D, Brown, A, Caamano, M, Calvino, F, Calviani, M, Cano-Ott, D, Cardella, R, Casanovas, A, Cerutti, F, Chen, YH, Chiaveri, E, Cortes, G, Cortes-Giraldo, MA, Damone, LA, Diakaki, M, Domingo-Pardo, C, Diacono, D, Dressler, R, Dupont, E, Duran, I, Fernandez-Dominguez, B, Ferrari, A, Ferreira, P, Furman, V, Gobel, K, Garcia, AR, Gawlik, A, Gilardoni, S, Glodariu, T, Goncalves, IF, Gonzalez-Romero, E, Griesmayer, E, Guerrero, C, Gunsing, F, Harada, H, Heinitz, S, Heyse, J, Jenkins, DG, Jericha, E, Kappeler, F, Kadi, Y, Kalamara, A, Kavrigin, P, Kimura, A, Kivel, N, Knapova, I, Kokkoris, M, Krticka, M, Kurtulgil, D, Leal-Cidoncha, E, Lederer, C, Leeb, H, Lerendegui-Marco, J, LoMeo, S, Lonsdale, SJ, Macina, D, Manna, A, Marganiec, J, Martinez, T, Masi, A, Massimi, C, Mastinu, P, Maugeri, EA, Mazzone, A, Mendoza, E, Mengoni, A, Milazzo, PM, Mingrone, F, Musumarra, A, Negret, A, Nolte, R, Oprea, A, Patronis, N, Pavlik, A, Perkowski, J, Porras, I, Praena, J, Quesada, JM, Radeck, D, Rauscher, T, Reifarth, R, Rubbia, C, Ryan, JA, Sabate-Gilarte, M, Saxena, A, Schillebeeckx, P, Schumann, D, Sedyshev, P, Smith, AG, Sosnin, NV, Stamatopoulos, A, Tagliente, G, Tain, JL, Tarifeno-Saldivia, A, Tassan-Got, L, Valenta, S, Vannini, G, Variale, V, Vaz, P, Ventura, A, Vlachoudis, V, Vlastou, R, Wallner, A, Warren, S, Weiss, C, Woods, PJ, Wright, T, Zugec, P, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and n_TOF
Subjects: Neutrons, Nuclear and High Energy Physics, Fission, Energies [Àrees temàtiques de la UPC], Nuclear physics, 235U, fission, cross section, n_TOF, CERN, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Espectroscòpia de ressonància magnètica nuclear, Resonance, n_TOF, cross section, 235U, CERN, Física nuclear, Nuclear Physics - Experiment, Nuclear Experiment, Nuclear magnetic resonance spectroscopy, Neutron energy
Abstract: The 235U(n,f) cross section was measured in a wide energy range (18 meV–170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,α) standard reactions, with high resolution and accuracy, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. In this paper we report on the results in the region between 18 meV and 10 keV neutron energy. A resonance analysis has been performed up to 200 eV, with the code SAMMY. The resulting fission kernels are compared with the ones extracted on the basis of the resonance parameters of the most recent major evaluated data libraries.Acomparison of the n_TOF datawith the evaluated cross sections is also performed from thermal to 10 keV neutron energy for the energy-averaged cross section in energy groups of suitably chosen width. A good agreement, within 0.5%, is found on average between the new results and the latest evaluated data files ENDF/B-VIII.0 and JEFF-3.3, as well as with respect to the broad group average fission cross section established in the framework of the standard working group of IAEA (the so-called reference file). However, some discrepancies, of up to 4%, are still present in some specific energy regions. The newdataset here presented, characterized by a unique combination of high resolution and accuracy, low background and wide energy range, can help to improve the evaluations from the Resolved Resonance Region up to 10 keV, also reducing the uncertainties that affect this region., CERN (European Organization for Nuclear Research)
Published: 2022

6. Measurement of the 241Am(n,γ) cross section at the n_TOF facility at CERN

Author: A. Oprea, F. Gunsing, P. Schillebeeckx, O. Aberle, M. Bacak, E. Berthoumieux, D. Cano-Ott, M. Diakaki, E. Dupont, B. Geslot, T. Glodariu†, J. Heyse, E. Mendoza, A. Negret, V. Alcayne, S. Amaducci, J. Andrzejewski, L. Audouin, V. Bécares, V. Babiano-Suarez, M. Barbagallo, F. Bečvář, G. Bellia, J. Billowes, D. Bosnar, A. Brown, M. Busso, M. Caamaño, L. Caballero-Ontanaya, F. Calviño, M. Calviani, A. Casanovas, F. Cerutti, Y. H. Chen, E. Chiaveri, N. Colonna, G. Cortés, M. A. Cortés-Giraldo, L. Cosentino, S. Cristallo, L. A. Damone, M. Dietz, C. Domingo-Pardo, R. Dressler, I. Durán, Z. Eleme, B. Fernández-Domínguez, A. Ferrari, P. Finocchiaro, V. Furman, K. Göbel, R. Garg, A. Gawlik-Ramięga, S. Gilardoni, I. F. Gonçalves, E. González-Romero, C. Guerrero, H. Harada, S. Heinitz, D. G. Jenkins, E. Jericha, F. Käppeler†, G. Kaur, Y. Kadi, A. Kimura, N. Kivel, M. Kokkoris, Y. Kopatch, M. Krtička, D. Kurtulgil, I. Ladarescu, C. Lederer-Woods, H. Leeb, J. Lerendegui-Marco, S. Lo Meo, S. J. Lonsdale, D. Macina, A. Manna, T. Martínez, A. Masi, C. Massimi, P. Mastinu, M. Mastromarco, F. Matteucci, E. A. Maugeri, A. Mazzone, A. Mengoni, V. Michalopoulou, P. M. Milazzo, F. Mingrone, A. Musumarra, R. Nolte, F. Ogállar, N. Patronis, A. Pavlik, J. Perkowski, L. Piersanti, I. Porras, J. Praena, J. M. Quesada, D. Radeck, D. Ramos-Doval, T. Rauscher, R. Reifarth, D. Rochman, C. Rubbia, M. Sabaté-Gilarte, A. Saxena, D. Schumann, A. G. Smith, N. V. Sosnin, A. Stamatopoulos, G. Tagliente, J. L. Tain, T. Talip, A. Tarifeño-Saldivia, L. Tassan-Got, P. Torres-Sánchez, A. Tsinganis, J. Ulrich, S. Urlass, S. Valenta, G. Vannini, V. Variale, P. Vaz, A. Ventura, V. Vlachoudis, R. Vlastou, A. Wallner, P. J. Woods, T. Wright, and P. Žugec
Subjects: General Medicine
Abstract: The neutron capture cross section of 241Am is an important quantity for nuclear energy production and fuel cycle scenarios. Several measurements have been performed in recent years with the aim to reduce existing uncertainties in evaluated data. Two previous measurements, performed at the 185 m flight-path station EAR1 of the neutron time-of-flight facility n_TOF at CERN, have permitted to substantially extend the resolved resonance region, but suffered in the near-thermal energy range from the unfavorable signal-to-background ratio resulting from the combination of the high radioactivity of 241Am and the rather low thermal neutron flux. The here presented 241Am(n,γ) measurement, performed with C6D6 liquid scintillator gamma detectors at the 20 m flight-path station EAR2 of the n_TOF facility, took advantage of the much higher neutron flux. The current status of the analysis of the data, focussed on the low-energy region, will be described here.
Published: 2023

7. The Stellar 72Ge(n, γ) Cross Section for weak s-process: A First Measurement at n_TOF

Author: M. Dietz, C. Lederer-Woods, A. Tattersall, U. Battino, F. Gunsing, S. Heinitz, J. Lerendegui-Marco, M. Krtička, R. Reifarth, S. Valenta, O. Aberle, S. Amaducci, 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, F. Cerutti, Y. H. Chen, E. Chiaveri, N. Colonna, 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, K. Göbel, A. R. García, A. Gawlik-Ramie˛ga, S. Gilardoni, T. Glodariu†, I. F. Gonçalves, E. González-Romero, E. Griesmayer, C. Guerrero, H. Harada, J. Heyse, D. G. Jenkins, E. Jericha, F. Käppeler†, Y. Kadi, D. Kahl, A. Kalamara, P. Kavrigin, A. Kimura, N. Kivel, M. Kokkoris, D. Kurtulgil, E. Leal-Cidoncha, H. Leeb, S. Lo Meo, S. J. Lonsdale, D. Macina, A. Manna, J. Marganiec, T. Martínez, A. Masi, C. Massimi, P. Mastinu, M. Mastromarco, E. A. Maugeri, A. Mazzone, E. Mendoza, A. Mengoni, P. M. Milazzo, F. Mingrone, 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, C. Rubbia, J. A. Ryan, M. Sabaté-Gilarte, A. Saxena, P. Schillebeeckx, D. Schumann, A. G. Smith, N. V. Sosnin, A. Stamatopoulos, G. Tagliente, J. L. Tain, A. Tarifeño-Saldivia, L. Tassan-Got, G. Vannini, V. Variale, P. Vaz, A. Ventura, V. Vlachoudis, R. Vlastou, A. Wallner, S. Warren, C. Weiss, P. J. Woods, T. Wright, and P. Žugec
Subjects: General Medicine
Abstract: The slow neutron capture process (s-process) is responsible for producing about half of the elemental abundances heavier than iron in the universe. Neutron capture cross sections on stable isotopes are a key nuclear physics input for s-process studies. The 72Ge(n, γ) Maxwellian-Averaged Cross Section (MACS) has an important influence on the production of isotopes between Ge and Zr in the weak s-process in massive stars and so far only theoretical estimations are available. An experiment was carried out at the neutron time-of-flight facility n_TOF at CERN to measure the 72Ge(n, γ) reaction for the first time at stellar neutron energies. The capture measurement was performed using an enriched 72GeO2 sample at a flight path length of 184 m, which provided high neutron energy resolution. The prompt gamma rays produced after neutron capture were detected with a set of liquid scintillation detectors (C6D6). The neutron capture yield is derived from the counting spectra taking into account the neutron flux and the gamma-ray detection efficiency using the Pulse Height Weighting Technique. Over 70 new neutron resonances were identified, providing an improved resolved reaction cross section to calculate experimental MACS values for the first time. The experiment, data analysis and the new MACS results will be presented including their impact on stellar nucleosynthesis, which was investigated using the post-processing nucleosynthesis code mppnp for a 25 solar mass model.
Published: 2023

8. Detector set up for the measurements of the neutron-induced fission cross section of 235U relative to n-p scattering up to 150 MeV at CERN-n_TOF

Author: E. Pirovano, A. Manna, N. Colonna, P. Console Camprini, L. Cosentino, M. Dietz, Q. Ducasse, P. Finocchiaro, C. Massimi, A. Mengoni, R. Nolte, D. Radeck, L. Tassan-Got, N. Terranova, A. Ventura, O. Aberle, V. Alcayne, S. Amaducci, J. Andrzejewski, L. Audouin, V. Babiano-Suarez, M. Bacak, M. Barbagallo, S. Bennett, E. Berthoumieux, 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, G. Cortés, M. A. Cortés-Giraldo, S. Cristallo, L. A. Damone, P. J. Davies, M. Diakaki, C. Domingo-Pardo, R. Dressler, E. Dupont, I. Durán, Z. Eleme, B. Fernández-Domínguez, A. Ferrari, K. Göbel, R. Garg, A. Gawlik-Ramie˛ga, S. Gilardoni, I. F. Gonçalves, E. González-Romero, C. Guerrero, F. Gunsing, H. Harada, S. Heinitz, J. Heyse, D. G. Jenkins, A. Junghans, F. Käppeler†, Y. Kadi, A. Kimura, I. Knapová, M. Kokkoris, M. Krtička, D. Kurtulgil, I. Ladarescu, C. Lederer-Woods, H. Leeb, J. Lerendegui-Marco, S. J. Lonsdale, D. Macina, T. Martínez, A. Masi, P. Mastinu, M. Mastromarco, E. A. Maugeri, A. Mazzone, E. Mendoza, V. Michalopoulou, P. M. Milazzo, F. Mingrone, J. Moreno-Soto, A. Musumarra, A. Negret, F. Ogállar, A. Oprea, N. Patronis, A. Pavlik, J. Perkowski, L. Piersanti, C. Petrone, I. Porras, J. Praena, J. M. Quesada, D. Ramos-Doval, T. Rauscher, R. Reifarth, D. Rochman, C. Rubbia, M. Sabaté-Gilarte, A. Saxena, P. Schillebeeckx, D. Schumann, A. Sekhar, A. G. Smith, N. V. Sosnin, P. Sprung, A. Stamatopoulos, G. Tagliente, J. L. Tain, A. Tarifeño-Saldivia, Th. Thomas, P. Torres-Sánchez, A. Tsinganis, J. Ulrich, S. Urlass, S. Valenta, G. Vannini, V. Variale, P. Vaz, D. Vescovi, V. Vlachoudis, R. Vlastou, A. Wallner, P. J. Woods, T. Wright, and P. Žugec
Subjects: General Medicine
Abstract: A new measurement of the 235U(n,f) fission cross section was carried out at n_TOF. The experiment covered the neutron energy range from 10 MeV up to 500 MeV, and it used the 1H(n,n) cross section as normalization for the neutron fluence measurement. In this contribution, the measurements and the characterization of the detectors covering the incident energy range up to 150 MeV are discussed.
Published: 2023

9. Characterization of a detector setup for the measurement of the 235U(n,f) cross section relative to n-p scattering up to 500 MeV at the n_TOF facility at CERN

Author: A. Manna, E. Pirovano, N. Colonna, D. Castelluccio, P. Console Camprini, L. Cosentino, M. Dietz, Q. Ducasse, P. Finocchiaro, C. Le Naour, C. Massimi, A. Mengoni, R. Nolte, L. Tassan-Got, N. Terranova, G. Vannini, A. Ventura, O. Aberle, V. Alcayne, S. Amaducci, J. Andrzejewski, L. Audouin, V. Babiano-Suarez, M. Bacak, M. Barbagallo, S. Bennett, E. Berthoumieux, 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, G. Cortés, M. A. Cortés-Giraldo, S. Cristallo, L. A. Damone, P. J. Davies, M. Diakaki, C. Domingo-Pardo, R. Dressler, E. Dupont, I. Durán, Z. Eleme, B. Fernández-Domínguez, A. Ferrari, K. Göbel, R. Garg, R. A. Gawlik-Ramiega, S. Gilardoni, I. F. Gonçalves, E. González-Romero, C. Guerrero, F. Gunsing, H. Harada, S. Heinitz, J. Heyse, D. G. Jenkins, A. Junghans, F. Käppeler, Y. Kadi, A. Kimura, I. Knapová, M. Kokkoris, M. Krtička, D. Kurtulgil, I. Ladarescu, C. Lederer-Woods, H. Leeb, J. Lerendegui-Marco, S. J. Lonsdale, D. Macina, T. Martínez, A. Masi, P. Mastinu, M. Mastromarco, E. A. Maugeri, A. Mazzone, E. Mendoza, V. Michalopoulou, P. M. Milazzo, F. Mingrone, J. Moreno-Soto, A. Musumarra, A. Negret, F. Ogállar, A. Oprea, N. Patronis, A. Pavlik, J. Perkowski, L. Piersanti, C. Petrone, I. Porras, J. Praena, J. M. Quesada, D. Ramos-Doval, T. Rauscher, R. Reifarth, D. Rochman, C. Rubbia, M. Sabaté-Gilarte, A. Saxena, P. Schillebeeckx, D. Schumann, A. Sekhar, A. G. Smith, N. V. Sosnin, P. Sprung, A. Stamatopoulos, G. Tagliente, J. L. Tain, A. Tarifeño-Saldivia, Th. Thomas, P. Torres-Sánchez, A. Tsinganis, J. Ulrich, S. Urlass, S. Valenta, V. Variale, P. Vaz, D. Vescovi, V. Vlachoudis, R. Vlastou, A. Wallner, P. J. Woods, T. Wright, and P. Žugec
Subjects: General Medicine
Abstract: The measurement of the 235U(n,f) reaction cross section in the neutron energy region 10 MeV to 500 MeV was carried out at the CERN n_TOF facility. The experimental campaign, completed in 2018, provided precise and accurate data on the fission reaction relative to neutron-proton elastic scattering. A description and characterization of the used setup for the simultaneous measurement of fission fragments and neutron flux is reported here.
Published: 2023

10. Shape Coexistence at Zero Spin in ^{64}Ni Driven by the Monopole Tensor Interaction

Author: N, Mărginean, D, Little, Y, Tsunoda, S, Leoni, R V F, Janssens, B, Fornal, T, Otsuka, C, Michelagnoli, L, Stan, F C L, Crespi, C, Costache, R, Lica, M, Sferrazza, A, Turturica, A D, Ayangeakaa, K, Auranen, M, Barani, P C, Bender, S, Bottoni, M, Boromiza, A, Bracco, S, Călinescu, C M, Campbell, M P, Carpenter, P, Chowdhury, M, Ciemała, N, Cieplicka-Oryǹczak, D, Cline, C, Clisu, H L, Crawford, I E, Dinescu, J, Dudouet, D, Filipescu, N, Florea, A M, Forney, S, Fracassetti, A, Gade, I, Gheorghe, A B, Hayes, I, Harca, J, Henderson, A, Ionescu, Ł W, Iskra, M, Jentschel, F, Kandzia, Y H, Kim, F G, Kondev, G, Korschinek, U, Köster, Krishichayan, M, Krzysiek, T, Lauritsen, J, Li, R, Mărginean, E A, Maugeri, C, Mihai, R E, Mihai, A, Mitu, P, Mutti, A, Negret, C R, Niţă, A, Olăcel, A, Oprea, S, Pascu, C, Petrone, C, Porzio, D, Rhodes, D, Seweryniak, D, Schumann, C, Sotty, S M, Stolze, R, Şuvăilă, S, Toma, S, Ujeniuc, W B, Walters, C Y, Wu, J, Wu, S, Zhu, and S, Ziliani
Abstract: The low-spin structure of the semimagic ^{64}Ni nucleus has been considerably expanded: combining four experiments, several 0^{+} and 2^{+} excited states were identified below 4.5 MeV, and their properties established. The Monte Carlo shell model accounts for the results and unveils an unexpectedly complex landscape of coexisting shapes: a prolate 0^{+} excitation is located at a surprisingly high energy (3463 keV), with a collective 2^{+} state 286 keV above it, the first such observation in Ni isotopes. The evolution in excitation energy of the prolate minimum across the neutron N=40 subshell gap highlights the impact of the monopole interaction and its variation in strength with N.
Published: 2020

11. A compact fission detector for fission-tagging neutron capture experiments with radioactive fissile isotopes

Author: D. Macina, A. Musumarra, K. Göbel, M. Sabaté-Gilarte, E. Mendoza, A. Oprea, I. Knapova, N. V. Sosnin, T. Wright, J. Heyse, Rene Reifarth, N. Kivel, R. Nolte, L. Cosentino, J. Marganiec, P. F. Mastinu, P. Vaz, F. Bečvář, Annamaria Mazzone, Petar Žugec, M. Aiche, I. Duran, Stefan Kopecky, A. Saxena, A. Kimura, Alberto Ventura, G. Vannini, S. Valenta, Nicola Colonna, M. Kokkoris, M. A. Cortés-Giraldo, P. M. Milazzo, R. Dressler, P. Kavrigin, E. Dupont, Carlos Guerrero, G. Sibbens, M. Mastromarco, Marco Calviani, B. Laurent, E. González-Romero, P. Ferreira, Mario Barbagallo, L. Audouin, M. Krtička, A. Pavlik, A. G. Smith, J. Billowes, D. Schumann, E. Griesmayer, Anton Wallner, Alexandru Negret, G. Cortes, C. Domingo-Pardo, G. Tagliente, M. Bacak, L. A. Damone, F. Käppeler, J. Balibrea, Philip Woods, O. Aberle, D. Vanleeuw, F. Mingrone, J. Andrzejewski, F. Calviño, H. Leeb, E. A. Maugeri, A. Kalamara, T. Martinez, C. Weiss, R. Vlastou, Olivier Serot, Carlo Rubbia, V. Vlachoudis, J. Perkowski, M. Diakaki, D. Radeck, Alfredo Ferrari, E. Berthoumieux, Stephan Richter, P. Schillebeeckx, S. Warren, F. Gunsing, A. Masi, Damir Bosnar, Y. Kadi, A. Manna, Hideo Harada, Deniz Kurtulgil, V. Variale, D. G. Jenkins, Y. H. Chen, Cristian Massimi, P. V. Sedyshev, G. Belier, S. Heinitz, V. Furman, A. Stamatopoulos, E. Chiaveri, D. Cano-Ott, A. S. Brown, A. Casanovas, C. Lederer, E. Jericha, T. Glodariu, Paolo Finocchiaro, J. M. Quesada, L. Tassan-Got, A. Moens, J. A. Ryan, S. Amaducci, Simone Gilardoni, R. Cardella, Javier Praena, S. Lo Meo, M. Caamaño, F. Cerutti, B. Fernández-Domínguez, J. L. Tain, J. Taieb, L. Mathieu, E. Leal-Cidoncha, A. Gawlik, Thomas Rauscher, A. R. García, Ariel Tarifeño-Saldivia, S. J. Lonsdale, Ignacio Porras, J. Lerendegui-Marco, I. F. Gonçalves, N. Patronis, Alberto Mengoni, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Bacak, M., Aiche, M., Belier, G., Berthoumieux, E., Diakaki, M., Dupont, E., Gunsing, F., Heyse, J., Kopecky, S., Laurent, B., Leeb, H., Mathieu, L., Moens, A., Richter, S., Schillebeeckx, P., Serot, O., Sibbens, G., Taieb, J., Vanleeuw, D., Vlachoudis, V., Aberle, O., Amaducci, S., Andrzejewski, J., Audouin, L., Balibrea, J., Barbagallo, M., Becvar, F., Billowes, J., Bosnar, D., Brown, A., Caamano, M., Calvino, F., Calviani, M., Cano-Ott, D., Cardella, R., Casanovas, A., Cerutti, F., Chen, Y. H., Chiaveri, E., Colonna, N., Cortes, G., Cortes-Giraldo, M. A., Cosentino, L., Damone, L. A., Domingo-Pardo, C., Dressler, R., Duran, I., Fernandez-Dominguez, B., Ferrari, A., Ferreira, P., Finocchiaro, P., Furman, V., Gobel, K., Garcia, A. R., Gawlik, A., Gilardoni, S., Glodariu, T., Goncalves, I. F., Gonzalez-Romero, E., Griesmayer, E., Guerrero, C., Harada, H., Heinitz, S., Jenkins, D. G., Jericha, E., Kappeler, F., Kadi, Y., Kalamara, A., Kavrigin, P., Kimura, A., Kivel, N., Knapova, I., Kokkoris, M., Krticka, M., Kurtulgil, D., Leal-Cidoncha, E., Lederer, C., Lerendegui-Marco, J., Lo Meo, S., Lonsdale, S. J., Macina, D., Manna, A., Marganiec, J., Martinez, T., Masi, A., Massimi, C., Mastinu, P., Mastromarco, M., Maugeri, E. A., Mazzone, A., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Musumarra, A., Negret, A., Nolte, R., Oprea, A., Patronis, N., Pavlik, A., Perkowski, J., Porras, I., Praena, J., Quesada, J. M., Radeck, D., Rauscher, T., Reifarth, R., Rubbia, C., Ryan, J. A., Sabate-Gilarte, M., Saxena, A., Schumann, D., Sedyshev, P., Smith, A. G., Sosnin, N. V., Stamatopoulos, A., Tagliente, G., Tain, J. L., Tarifeno-Saldivia, A., Tassan-Got, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlastou, R., Wallner, A., Warren, S., Weiss, C., Woods, P. J., Wright, T., Zugec, P., Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Doctorat en Enginyeria Nuclear i de les Radiacions Ionitzants, Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Bacak M., Aiche M., Belier G., Berthoumieux E., Diakaki M., Dupont E., Gunsing F., Heyse J., Kopecky S., Laurent B., Leeb H., Mathieu L., Moens A., Richter S., Schillebeeckx P., Serot O., Sibbens G., Taieb J., Vanleeuw D., Vlachoudis V., Aberle O., Amaducci S., Andrzejewski J., Audouin L., Balibrea J., Barbagallo M., Becvar F., Billowes J., Bosnar D., Brown A., Caamano M., Calvino F., Calviani M., Cano-Ott D., Cardella R., Casanovas A., Cerutti F., Chen Y.H., Chiaveri E., Colonna N., Cortes G., Cortes-Giraldo M.A., Cosentino L., Damone L.A., Domingo-Pardo C., Dressler R., Duran I., Fernandez-Dominguez B., Ferrari A., Ferreira P., Finocchiaro P., Furman V., Gobel K., Garcia A.R., Gawlik A., Gilardoni S., Glodariu T., Goncalves I.F., Gonzalez-Romero E., Griesmayer E., Guerrero C., Harada H., Heinitz S., Jenkins D.G., Jericha E., Kappeler F., Kadi Y., Kalamara A., Kavrigin P., Kimura A., Kivel N., Knapova I., Kokkoris M., Krticka M., Kurtulgil D., Leal-Cidoncha E., Lederer C., Lerendegui-Marco J., Lo Meo S., Lonsdale S.J., Macina D., Manna A., Marganiec J., Martinez T., Masi A., Massimi C., Mastinu P., Mastromarco M., Maugeri E.A., Mazzone A., Mendoza E., Mengoni A., Milazzo P.M., Mingrone F., Musumarra A., Negret A., Nolte R., Oprea A., Patronis N., Pavlik A., Perkowski J., Porras I., Praena J., Quesada J.M., Radeck D., Rauscher T., Reifarth R., Rubbia C., Ryan J.A., Sabate-Gilarte M., Saxena A., Schumann D., Sedyshev P., Smith A.G., Sosnin N.V., Stamatopoulos A., Tagliente G., Tain J.L., Tarifeno-Saldivia A., Tassan-Got L., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Vlastou R., Wallner A., Warren S., Weiss C., Woods P.J., Wright T., and Zugec P.
Subjects: Nuclear and High Energy Physics, Fission, Physics::Instrumentation and Detectors, Nuclear Theory, Física::Física de partícules [Àrees temàtiques de la UPC], Nuclear physics, Context (language use), Neutrons--Captura, 01 natural sciences, 7. Clean energy, Neutrons--Capture, 0103 physical sciences, Physics::Atomic and Molecular Clusters, 233 U, ddc:530, n_TOF, 010306 general physics, Nuclear Experiment, Instrumentation, Energies::Energia nuclear [Àrees temàtiques de la UPC], Physics, [PHYS]Physics [physics], Fission detector, 233U, Time-of-flight, Física [Àrees temàtiques de la UPC], Fissile material, 010308 nuclear & particles physics, Detector, Neutron radiation, Fast fission, NATURAL SCIENCES. Physics, Calorimeter, PRIRODNE ZNANOSTI. Fizika, Neutron capture, 13. Climate action, Física nuclear, Other
Abstract: In the measurement of neutron capture cross-sections of fissile isotopes, the fission channel is a source of background which can be removed efficiently using the so-called fission-tagging or fission-veto technique. For this purpose a new compact and fast fission chamber has been developed. The design criteria and technical description of the chamber are given within the context of a measurement of the 233U(n, ��) cross-section at the n_TOF facility at CERN, where it was coupled to the n_TOF Total Absorption Calorimeter. For this measurement the fission detector was optimized for time resolution, minimization of material in the neutron beam and for alpha-fission discrimination. The performance of the fission chamber and its application as a fission tagging detector are discussed., This work was partially supported by the French NEEDS/NACRE Project and by the European Commission within HORIZON2020 via the EURATOM Project EUFRAT.
Published: 2020

12. Neutron Capture on the s -Process Branching Point Tm 171

Author: C. Guerrero, J. Lerendegui-Marco, M. Paul, M. Tessler, S. Heinitz, C. Domingo-Pardo, S. Cristallo, R. Dressler, S. Halfon, N. Kivel, U. Köster, E. A. Maugeri, T. Palchan-Hazan, J. M. Quesada, D. Rochman, D. Schumann, L. Weissman, O. Aberle, S. Amaducci, J. Andrzejewski, L. Audouin, V. Bécares, M. Bacak, J. Balibrea, A. Barak, M. Barbagallo, S. Barros, F. Bečvář, C. Beinrucker, D. Berkovit
Published: 2020
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13. In vitro solubility of 7Be particles released from a damaged source

Author: Shlomi Halfon, Henry B. Spitz, E. Daniely, E. A. Maugeri, Z. Yungrais, J. Koch, O. Aviv, and R. Sasson
Subjects: Chemistry, Health, Toxicology and Mutagenesis, Radiochemistry, Public Health, Environmental and Occupational Health, Fraction (chemistry), Pollution, In vitro, 030218 nuclear medicine & medical imaging, Analytical Chemistry, 03 medical and health sciences, 0302 clinical medicine, Nuclear Energy and Engineering, 030220 oncology & carcinogenesis, In vivo measurements, Radiology, Nuclear Medicine and imaging, Solubility, Dissolution, Spectroscopy
Abstract: The solubility of 7Be particles was measured in vitro as part of an evaluation of the exposure of workers who inhaled particles released from a damaged source. Initial in vivo measurements performed with one worker revealed that a significant fraction of 7Be particles were rapidly removed from the respiratory tract with a half-life of approximately 0.4 days. Since rapid clearance of 7Be was not supported by conventional biokinetic models, a study of the solubility of the particles in vitro was launched. A representative sample of the 7Be particles was collected from the damaged source and exposed to a surrogate lung fluid solution for increasing periods of time. Over 98% of the material was dissolved at the end of the dissolution period. The effective half-time for solubility of the majority of 7Be particles was found to be ≅ 0.4 days and is wholly consistent with results of in vivo measurements.
Published: 2018

14. Measurement of the Ge70(n,γ) cross section up to 300 keV at the CERN n_TOF facility

Author: E. A. Maugeri, G. Cortes, A. Musumarra, Claudia Lederer-Woods, A. R. García, S. Warren, V. Variale, V. Bécares, C. Weiss, R. Vlastou, A. Tattersall, P. C. Rout, M. Brugger, F. Gunsing, Tanja Heftrich, P. V. Sedyshev, Cristian Massimi, P. Ferreira, Damir Bosnar, Y. Kadi, I. Knapova, M. Krtička, N. Patronis, M. A. Cortés-Giraldo, A. Riego-Perez, C. Beinrucker, D. M. Castelluccio, Alfredo Ferrari, Petar Žugec, P. Vaz, K. Göbel, M. Mirea, G. Tagliente, T. Martinez, K. Rajeev, B. Fernández-Domínguez, F. Calviño, H. Leeb, M. Bacak, G. Vannini, E. Leal-Cidoncha, Javier Praena, S. Lo Meo, I. Duran, Alberto Ventura, A. Kimura, T. Wright, Francesca Matteucci, V. Khryachkov, D. Macina, J. Perkowski, A. Gawlik, U. Battino, F. Mingrone, J. Andrzejewski, Thomas Rauscher, F. Käppeler, A. Pavlik, J. Marganiec, C. Domingo-Pardo, J. I. Porras, J. L. Tain, F. Bečvář, A. Saxena, Roberto Losito, S. Valenta, Carlos Guerrero, M. Kokkoris, Tatsuya Katabuchi, O. Aberle, C. Wolf, Mario Weigand, Mario Barbagallo, A. Casanovas, P. F. Mastinu, Marco Calviani, Carlo Rubbia, A. G. Smith, R. Dressler, E. Mendoza, S. Barros, L. Cosentino, D. Schumann, Philip Woods, Rene Reifarth, P. Kavrigin, E. Berthoumieux, N. Kivel, A. Tsinganis, Stefan Schmidt, L. Audouin, Nicola Colonna, V. Vlachoudis, E. González-Romero, J. M. Quesada, E. Chiaveri, L. Tassan-Got, E. Dupont, D. Cano-Ott, E. Griesmayer, Y. H. Chen, L. A. Damone, M. Caamaño, S. Heinitz, V. Furman, E. Jericha, V. Ketlerov, Alberto Mengoni, T. Glodariu, Paolo Finocchiaro, F. Cerutti, J. A. Ryan, D. G. Jenkins, Ariel Tarifeño-Saldivia, S. J. Lonsdale, J. Lerendegui-Marco, R. Cardella, I. F. Gonçalves, S. Montesano, A. Stamatopoulos, A. Oprea, J. Heyse, M. Mastromarco, Anton Wallner, J. Billowes, J. Balibrea, P. Schillebeeckx, Hideo Harada, M. Sabaté-Gilarte, M. Diakaki, R. Nolte, P. M. Milazzo, M. Dietz, and A. Goverdovski
Subjects: Physics, Standard solar model, Solar mass, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, 01 natural sciences, 7. Clean energy, Neutron temperature, Nuclear physics, Neutron capture, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Neutron cross section, Astrophysics::Solar and Stellar Astrophysics, Neutron, Nuclear Experiment, 010306 general physics, s-process
Abstract: Neutron capture data on intermediate mass nuclei are of key importance to nucleosynthesis in the weak component of the slow neutron capture processes, which occurs in massive stars. The $(n,\gamma)$ cross section on $^{70}Ge$, which is mainly produced in the s process, was measured at the neutron time-of-flight facility n_TOF at CERN. Resonance capture kernels were determined up to 40 keV neutron energy and average cross sections up to 300 keV. Stellar cross sections were calculated from $kT=5 keV$ to $kT=100 keV$ and are in very good agreement with a previous measurement by Walter and Beer (1985) and recent evaluations. Average cross sections are in agreement with Walter and Beer (1985) over most of the neutron energy range covered, while they are systematically smaller for neutron energies above 150 keV. We have calculated isotopic abundances produced in s-process environments in a 25 solar mass star for two initial metallicities (below solar and close to solar). While the low metallicity model reproduces best the solar system germanium isotopic abundances, the close to solar model shows a good global match to solar system abundances in the range of mass numbers A=60–80.
Published: 2019

15. Experimental setup and procedure for the measurement of the $^7$Be(n,p)$^7$Li reaction at n_TOF

Author: A. Oprea, M. Krtička, J. Heyse, P. Ferreira, G. Bellia, T. Martinez, A. Musumarra, G. Cortes, M. Sabaté-Gilarte, G. Tagliente, J. Billowes, M. S. Robles, Ariel Tarifeño-Saldivia, S. J. Lonsdale, M. Diakaki, G. Vannini, Alexandru Negret, Juliana Schell, F. Käppeler, R. Nolte, Y. H. Chen, S. Heinitz, Karl Johnston, F. Mingrone, J. Andrzejewski, Carlo Rubbia, V. Vlachoudis, A. Casanovas, M. Bacak, Alfredo Ferrari, E. A. Maugeri, S. Warren, V. Variale, D. Radeck, E. Berthoumieux, M. Mastromarco, C. Lederer, Carlos Guerrero, K. Göbel, E. Mendoza, P. Kavrigin, J. Lerendegui-Marco, A. Manna, V. Furman, Anton Wallner, I. F. Gonçalves, N. V. Sosnin, N. Kivel, A. Kalamara, J. Balibrea, F. Gunsing, E. Griesmayer, L. A. Damone, E. Jericha, T. Glodariu, Paolo Finocchiaro, Annamaria Mazzone, Petar Žugec, Nicola Colonna, A. Kimura, T. Wright, J. A. Ryan, A. Masi, E. Dupont, P. M. Milazzo, L. Audouin, D. G. Jenkins, A. S. Brown, J. Marganiec, I. Duran, Maurizio Piscopo, L. Cosentino, P. F. Mastinu, I. Porras, A. Saxena, Cristian Massimi, R. Dressler, M. A. Cortés-Giraldo, Deniz Kurtulgil, P. Schillebeeckx, P. V. Sedyshev, Mario Barbagallo, D. Schumann, Hideo Harada, E. Leal-Cidoncha, A. Gawlik, C. Weiss, R. Vlastou, Thomas Rauscher, B. Fernández-Domínguez, Damir Bosnar, Y. Kadi, N. Patronis, S. Valenta, E. González-Romero, Marco Calviani, A. G. Smith, M. Dietz, Philip Woods, J. L. Tain, A. R. García, A. Stamatopoulos, M. Kokkoris, F. Bečvář, Alfio Pappalardo, Alberto Mengoni, F. Calviño, H. Leeb, D. Macina, J. Perkowski, O. Aberle, P. Vaz, Alberto Ventura, Rene Reifarth, E. Chiaveri, J. M. Quesada, L. Tassan-Got, D. Cano-Ott, Sergio Cristallo, A. Pavlik, C. Domingo-Pardo, S. Amaducci, J. G. Martins-Correia, Javier Praena, S. Lo Meo, M. Caamaño, F. Cerutti, Simone Gilardoni, R. Cardella, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, n_TOF, Institut de Physique Nucléaire d'Orsay ( IPNO ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Institut de Recherches sur les lois Fondamentales de l'Univers ( IRFU ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Mengoni, A., Lo Meo, S., Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Barbagallo, M., Andrzejewski, J., Mastromarco, M., Perkowski, J., Damone, L.A., Gawlik, A., Cosentino, L., Finocchiaro, P., Maugeri, E.A., Mazzone, A., Dressler, R., Heinitz, S., Kivel, N., Schumann, D., Colonna, N., Aberle, O., Amaducci, S., Audouin, L., Bacak, M., Balibrea, J., Bečvář, F., Bellia, G., Berthoumieux, E., Billowes, J., Bosnar, D., Brown, A., Caamaño, M., Calviño, F., Calviani, M., Cano-Ott, D., Cardella, R., Casanovas, A., Cerutti, F., Chen, Y.H., Chiaveri, E., Cortés, G., Cortés-Giraldo, M.A., Cristallo, S., Diakaki, M., Dietz, M., Domingo-Pardo, C., Dupont, E., Durán, I., Fernández-Domínguez, B., Ferrari, A., Ferreira, P., Furman, V., Göbel, K., García, A.R., Gilardoni, S., Glodariu, T., Gonçalves, I.F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Harada, H., Heyse, J., Jenkins, D.G., Jericha, E., Johnston, K., Käppeler, F., Kadi, Y., Kalamara, A., Kavrigin, P., Kimura, A., Kokkoris, M., Krtička, M., Kurtulgil, D., Leal-Cidoncha, E., Lederer, C., Leeb, H., Lerendegui-Marco, J., Lonsdale, S.J., Macina, D., Manna, A., Marganiec, J., Martínez, T., Martins-Correia, J.G., Masi, A., Massimi, C., Mastinu, P., Mendoza, E., Milazzo, P.M., Mingrone, F., Musumarra, A., Negret, A., Nolte, R., Oprea, A., Pappalardo, A.D., Patronis, N., Pavlik, A., Piscopo, M., Porras, I., Praena, J., Quesada, J.M., Radeck, D., Rauscher, T., Reifarth, R., Robles, M.S., Rubbia, C., Ryan, J.A., Sabaté-Gilarte, M., Saxena, A., Schell, J., Schillebeeckx, P., Sedyshev, P., Smith, A.G., Sosnin, N.V., Stamatopoulos, A., Tagliente, G., Tain, J.L., Tarifeño-Saldivia, A., Tassan-Got, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Wallner, A., Warren, S., Weiss, C., Woods, P.J., Wright, T., Žugec, P., Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques, and Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group
Subjects: Physics - Instrumentation and Detectors, Nuclear physics, OUTLOOK, 01 natural sciences, 7. Clean energy, Particle identification, p) 7Li reaction, CERN, Detectors and Experimental Techniques, Nuclear Experiment, Instrumentation, physics.ins-det, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 7Be(n,p)7 Li reaction, 7Be(n,p) 7Li reaction, Big bang nucleosynthesis, Cosmological Lithium problem, n_TOF spallation neutron source, Nuclear and High Energy Physics, Instrumentation, Physics, Large Hadron Collider, Cross section, 7Be(n, Big bang nucleosynthesis, Detector, Instrumentation and Detectors (physics.ins-det), Charged particle, PRIRODNE ZNANOSTI. Fizika, Cosmological Lithium problem, Big bang nucleosynthesis, 7Be(n, p)7Li reaction, n_TOF spallation neutron source, Cardinal point, Big bang nucleosynthesi, Física nuclear, p) 7 Li reaction, CROSS-SECTION, Cosmological Lithium problem, Spallation Neutron Source, n_TOF spallation neutron source, 7Be(n,p) 7Li reaction, Nuclear and High Energy Physics, nTOF, FOS: Physical sciences, Be-7(n,p)Li-7 reaction, 7Be(n,p)7Li reaction, 0103 physical sciences, Neutron, FACILITY, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Nuclear and High Energy Physic, Neutrons, Energies::Energia nuclear [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, p)7Li reaction, Neutron radiation, NATURAL SCIENCES. Physics, 7 Be(n, NEUTRON
Abstract: Following the completion of the second neutron beam line and the related experimental area (EAR2) at the n_TOF spallation neutron source at CERN, several experiments were planned and performed. The high instantaneous neutron flux available in EAR2 allows to investigate neutron indiced reactions with charged particles in the exit channel even employing targets made out of small amounts of short-lived radioactive isotopes. After the successful measurement of the 7Be(n,{\alpha}){\alpha} cross section, the 7Be(n,p)7Li reaction was studied in order to provide still missing cross section data of relevance for Big Bang Nucleosynthesis (BBN), in an attempt to find a solution to the cosmological Lithium abundance problem. This paper describes the experimental setup employed in such a measurement and its characterization., The authors are grateful to Carmelo Marchetta (INFN-LNS) for the production of the 6LiF test target. This research was partially funded by the European Atomic Energy Community (Euratom) Seventh Framework Programme FP7/2007- 2011 under the Project CHANDA (Grant No. 605203). We acknowledge the support of the Narodowe Centrum Nauki (NCN) under the grant UMO-2012/04/M/ST2/00700-UMO-2016/22/M/ST2/00183, and of the Croatian Science Foundation under project HRZZ 1680.
Published: 2018

16. The Nuclear astrophysics program at n_TOF (CERN)

Author: C. Massimi, E. Chiaveri, C. Rubbia, P. J. Woods, S. Warren, A. Casanovas, F. Mingrone, M. Sabaté-Gilarte, D. Bosnar, A. Oprea, J. M. Quesada, G. Vannini, E. González, J. A. Ryan, E. Berthoumieux, Sergio Cristallo, I. Porras, J. Perkowski, M. A. Cortés-Giraldo, Mario Barbagallo, G. Cortes, D. Kurtulgil, M. Kokkoris, M. S. Robles, A. Stamatopoulos, L. R. Dressler, M. Bacak, J. Kroll, P. Kavrigin, M. Krtička, C. Weiss, A. Pavlik, F. Gunsing, L. A. Damone, A. Ventura, J. Andrzejewski, A. Riego, T. Glodariu, V. Variale, J. L. Tain, E. Dupont, F. Käppeler, C. Lederer, C. Domingo-Pardo, J. Heyse, Christoph Langer, Dorothea Schumann, H. Leeb, D. Radeck, Ralf Nolte, P. Mastinu, V. Vlachoudis, L. Piersanti, M. Mastromarco, G. Tagliente, J. Marganiec, Y. H. Chen, R. Cardella, B. Fernández-Domínguez, S. Heinitz, D. Cano-Ott, A. Masi, V. Furman, A. S. Brown, P. Finocchiaro, E. Griesmayer, P. M. Milazzo, Anton Wallner, T. Wright, D. G. Jenkins, P. Schillebeeckx, Nicola Colonna, J. Balibrea, Cosentino, N. V. Sosnin, A. Negret, T. Martínez, S. Valenta, E. Jericha, P. Sedyshev, A. Hernandez-Prieto, E. Leal-Cidoncha, Petar Žugec, Simona Losito, E. A. Maugeri, Javier Praena, S. Lo Meo, A. Ferrari, L. Tassan-Got, A. Kalamara, Pedro G. Ferreira, A. Mazzone, L. Audouin, A. Tsinganis, M. Caamaño, I. Duran, Y. Kadi, A. Saxena, Hideo Harada, P. Vaz, D. Macina, Carlos Guerrero, S. Gilardoni, M. Mirea, A. G. Smith, N. Patronis, F. Cerutti, M. Diakaki, R. Vlastou, F. Calviño, Atsushi Kimura, R. Reifarth, J. Billowes, F. Bečvář, E. Mendoza, A. Musumarra, J. Lerendegui-Marco, I. F. Gonçalves, K. Göbel, Ariel Tarifeño-Saldivia, S. J. Lonsdale, O. Aberle, Giulia Clai, A. Gawlik, Thomas Rauscher, A. R. García, Marco Calviani, N. Kivel, A. Mengoni, A. Mallik, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, n_TOF, Mengoni, A., Lo Meo, S., Clai, G., Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Colonna, N., La Cognata, M., Aberle, O., Andrzejewski, J., Audouin, L., Bacak, M., Balibrea, J., Barbagallo, M., Bečvář, F., Berthoumieux, E., Billowes, J., Bosnar, D., Brown, A., Caamaño, M., Calviño, F., Calviani, M., Cano-Ott, D., Cardella, R., Casanovas, A., Cerutti, F., Chen, Y. H., Chiaveri, E., Cortés, G., Cortés-Giraldo, M. A., Cosentino, Null, Cristallo, S., Damone, L. A., Diakaki, M., Domingo-Pardo, C., Dressler, L. R., Dupont, E., Durán, I., Fernández-Domínguez, B., Ferrari, A., Ferreira, P., Finocchiaro, P., Furman, V., Göbel, K., García, A. R., Gawlik, A., Gilardoni, S., Glodariu, T., Gonçalves, I. F., González, E., Griesmayer, E., Guerrero, C., Gunsing, F., Harada, H., Heinitz, S., Hernandez-Prieto, A., Heyse, J., Jenkins, D. G., Jericha, E., Käppeler, F., Kadi, Y., Kalamara, A., Kavrigin, P., Kimura, A., Kivel, N., Kokkoris, M., Kroll, J., Krtička, M., Kurtulgil, D., Langer, C., Leal-Cidoncha, E., Lederer, C., Lerendegui-Marco, J., Leeb, H., Lonsdale, S. J., Losito, S., Macina, D., Mallik, A., Marganiec, J., Martínez, T., Masi, A., Massimi, C., Mastinu, P., Mastromarco, M., Maugeri, E. A., Mazzone, A., Mendoza, E., Mingrone, F., Milazzo, P. M., Mirea, M., Musumarra, A., Negret, A., Nolte, R., Oprea, A., Patronis, N., Pavlik, A., Perkowski, J., Piersanti, L., Porras, I., Praena, J., Quesada, J. M., Radeck, D., Rauscher, T., Reifarth, R., Riego, A., Robles, M. S., Rubbia, C., Ryan, J. A., Sabaté-Gilarte, M., Saxena, A., Schillebeeckx, P., Schumann, D., Sedyshev, P., Smith, A. G., Sosnin, N. V., Stamatopoulos, A., Tagliente, G., Tain, J. L., Tarifeño-Saldivia, A., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Wallner, A., Warren, S., Weiss, C., Woods, P. J., Wright, T., Žugec, P., and Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Subjects: Nuclear reaction, Astrofísica, Astrophysics and Astronomy, Cross-section, nTOF, QC1-999, Astrophysics::High Energy Astrophysical Phenomena, Neutron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Astrophysics, 01 natural sciences, 7. Clean energy, n_TOF, nuclear astrophysics, CERN, Nuclear physics, Physics and Astronomy (all), Stellar nucleosynthesis, Big Bang nucleosynthesis, Nucleosynthesis, 0103 physical sciences, CERN, Nuclear astrophysics, Astrophysics::Solar and Stellar Astrophysics, Nuclear Physics - Experiment, Neutron induced nuclear reactions, 010306 general physics, Nuclear Experiment, Astrophysics::Galaxy Astrophysics, Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, Neutron capture, 13. Climate action, Neutron source, Astrophysics::Earth and Planetary Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Nucleosíntesi
Abstract: An important experimental program on Nuclear Astrophysics is being carried out at the n_TOF since several years, in order to address the still open issues in stellar and primordial nucleosynthesis. Several neutron capture reactions relevant to s-process nucleosynthesis have been measured so far, some of which on important branching point radioisotopes. Furthermore, the construction of a second experimental area has recently opened the way to challenging measurements of (n, charged particle) reactions on isotopes of short half-life. The Nuclear Astrophysics program of the n_TOF Collaboration is here described, with emphasis on recent results relevant for stellar nucleosynthesis, stellar neutron sources and primordial nucleosynthesis., We acknowledge the support by the Narodowe Centrum Nauki (NCN), under the Grant No. UMO-2012/04/M/ST2/00700.
Published: 2018

17. New measurement of the 242Pu(n,γ) cross section at n-TOF-EAR1 for MOX fuels: Preliminary results in the RRR

Author: Simone Gilardoni, P. C. Rout, Ignacio Porras, Rene Reifarth, J. Billowes, C. Lederer, E. Leal-Cidoncha, J. M. Quesada, L. Tassan-Got, A. Gawlik, Thomas Rauscher, R. Cardella, P. Vaz, P. Schillebeeckx, M. Diakaki, A. Casanovas, Alberto Ventura, A. Mengoni, M. Kokkoris, Hideo Harada, J. Marganiec, G. Vannini, M. Caamaño, A. Oprea, J. Heyse, N. Patronis, L. Cosentino, M. Sabaté-Gilarte, S. Warren, E. A. Maugeri, A. Pavlik, M. A. Cortés-Giraldo, C. Domingo-Pardo, F. Cerutti, Ariel Tarifeño-Saldivia, S. J. Lonsdale, E. Mendoza, E. Jericha, R. Nolte, S. Valenta, P. F. Mastinu, T. Glodariu, J. Lerendegui-Marco, V. Variale, Arnd R. Junghans, A. R. García, Paolo Finocchiaro, Marco Calviani, A. Kimura, J. A. Ryan, A. Saxena, A. G. Smith, P. M. Milazzo, I. F. Gonçalves, M. Mastromarco, Philip Woods, F. Calviño, H. Leeb, A. S. Brown, Anton Wallner, R. Vlastou, J. Perkowski, M. B. Gómez-Hornillos, I. Duran, Javier Praena, S. Lo Meo, F. Gunsing, P. Ferreira, Y. H. Chen, Mario Barbagallo, D. Schumann, F. Mingrone, J. Andrzejewski, J. Balibrea, E. Chiaveri, A. Masi, G. Tagliente, S. Heinitz, Damir Bosnar, D. Cano-Ott, Carlo Rubbia, G. Cortes, Cristian Massimi, A. Stamatopoulos, Y. Kadi, D. G. Jenkins, K. Göbel, R. Dressler, V. Vlachoudis, D. Macina, P. Kavrigin, Alfredo Ferrari, E. González, T. Wright, E. Griesmayer, L. A. Damone, M. Krtička, O. Aberle, T. Martinez, N. V. Sosnin, Annamaria Mazzone, Petar Žugec, B. Fernández-Domínguez, J. L. Tain, Alexandru Negret, F. Käppeler, N. Kivel, Klaus Eberhardt, D. Radeck, E. Berthoumieux, L. Audouin, A. Kalamara, A. Musumarra, Deniz Kurtulgil, Nicola Colonna, Carlos Guerrero, E. Dupont, F. Bečvář, M. Bacak, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, n_TOF, Mengoni, A., Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Ministerio de Economía y Competitividad (MINECO). España, Lerendegui-Marco, J., Guerrero, C., Cortés-Giraldo, M.A., Quesada, J.M., Mendoza, E., Cano-Ott, D., Eberhardt, K., Junghans, A., Aberle, O., Andrzejewski, J., Audouin, L., Bacak, M., Balibrea, J., Barbagallo, M., Bečvář, F., Berthoumieux, E., Billowes, J., Bosnar, D., Brown, A., Caamaño, M., Calviño, F., Calviani, M., Cardella, R., Casanovas, A., Cerutti, F., Chen, Y.H., Chiaveri, E., Colonna, N., Cortés, G., Cosentino, L., Damone, L.A., Diakaki, M., Domingo-Pardo, C., Dressler, R., Dupont, E., Durán, I., Fernández-Domínguez, B., Ferrari, A., Ferreira, P., Finocchiaro, P., Göbel, K., Gómez-Hornillos, M.B., García, A.R., Gawlik, A., Gilardoni, S., Glodariu, T., Gonçalves, I.F., González, E., Griesmayer, E., Gunsing, F., Harada, H., Heinitz, S., Heyse, J., Jenkins, D.G., Jericha, E., Käppeler, F., Kadi, Y., Kalamara, A., Kavrigin, P., Kimura, A., Kivel, N., Kokkoris, M., Krtička, M., Kurtulgil, D., Leal-Cidoncha, E., Lederer, C., Leeb, H., Meo, S. Lo, Lonsdale, S.J., Macina, D., Marganiec, J., Martínez, T., Masi, A., Massimi, C., Mastinu, P., Mastromarco, M., Maugeri, E.A., Mazzone, A., Milazzo, P.M., Mingrone, F., Musumarra, A., Negret, A., Nolte, R., Oprea, A., Patronis, N., Pavlik, A., Perkowski, J., Porras, I., Praena, J., Radeck, D., Rauscher, T., Reifarth, R., Rout, P.C., Rubbia, C., Ryan, J.A., Sabaté-Gilarte, M., Saxena, A., Schillebeeckx, P., Schumann, D., Smith, A.G., Sosnin, N.V., Stamatopoulos, A., Tagliente, G., Tain, J.L., Tarifeño-Saldivia, A., Tassan-Got, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Wallner, A., Warren, S., Woods, P.J., Wright, T., Ž Ugec, P., Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, and Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group
Subjects: Nuclear reaction, nTOF, QC1-999, Nuclear engineering, Context (language use), CERN nTOF, Neutron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Physics and Astronomy (all), Nuclear reactors, Reactors nuclears, 0103 physical sciences, CERN, Neutron cross section, Nuclear Physics - Experiment, ddc:530, 242Pu neutron capture, 010306 general physics, MOX fuel, Neutrons, Energies::Energia nuclear [Àrees temàtiques de la UPC], Fissile material, Cross section, Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, Physics, Spent nuclear fuel, Neutron temperature, 13. Climate action, neutron time-of-flight measurement
Abstract: The spent fuel of current nuclear reactors contains fissile plutonium isotopes that can be combined with 238U to make mixed oxide (MOX) fuel. In this way the Pu from spent fuel is used in a new reactor cycle, contributing to the long-term sustainability of nuclear energy. The use of MOX fuels in thermal and fast reactors requires accurate capture and fission cross sections. For the particular case of 242Pu, the previous neutron capture cross section measurements were made in the 70’s, providing an uncertainty of about 35% in the keV region. In this context, the Nuclear Energy Agency recommends in its “High Priority Request List” and its report WPEC-26 that the capture cross section of 242Pu should be measured with an accuracy of at least 7–12% in the neutron energy range between 500 eV and 500 keV. This work presents a brief description of the measurement performed at n TOF-EAR1, the data reduction process and the first ToF capture measurement on this isotope in the last 40 years, providing preliminary individual resonance parameters beyond the current energy limits in the evaluations, as well as a preliminary set of average resonance parameters., This measurement has received funding from the EC FP7 Programme under the projects NEUTANDALUS (Grant No. 334315) and CHANDA (Grant No. 605203), and the Spanish Ministry of Economy and Competitiveness projects FPA2013- 45083-P and FPA2014-53290-C2-2-P.
Published: 2017

18. Characterization of the n-TOF EAR-2 neutron beam

Author: M. Sabaté-Gilarte, Enrique Casarejos, F. Gunsing, A. Musumarra, Cristian Massimi, A. Pavlik, P. Ferreira, C. Domingo-Pardo, P. M. Milazzo, N. Kivel, M. Krtička, R. Nolte, G. Tagliente, M. A. Cortés-Giraldo, Ariel Tarifeño-Saldivia, S. J. Lonsdale, P. C. Rout, M. Caamaño, F. Cerutti, Alfredo Ferrari, R. Cardella, T. Martinez, Javier Praena, S. Lo Meo, K. Göbel, C. Lederer, G. Vannini, S. Warren, A. Kimura, Tatsuya Katabuchi, E. Leal-Cidoncha, Tanja Heftrich, F. Mingrone, J. Andrzejewski, Mario Weigand, V. Variale, J. Marganiec, O. Aberle, T. Wright, E. Chiaveri, D. Cano-Ott, D. Macina, J. L. Tain, Carlo Rubbia, E. González, V. Vlachoudis, S. Barros, A. Gawlik, M. Kokkoris, J. I. Porras, Thomas Rauscher, Rene Reifarth, D. M. Castelluccio, A. Riego-Perez, J. Lerendegui-Marco, Stefan Schmidt, Mario Barbagallo, P. F. Mastinu, V. Khryachkov, M. Mirea, D. Schumann, P. Vaz, L. Cosentino, J. M. Quesada, C. Le Naour, L. Tassan-Got, Alberto Ventura, I. F. Gonçalves, M. Bacak, D. G. Jenkins, F. Käppeler, E. Mendoza, V. Bécares, F. Calviño, H. Leeb, A. Oprea, G. Cortes, A. Casanovas, J. Perkowski, S. Montesano, Y. H. Chen, J. Heyse, A. R. García, M. B. Gómez-Hornillos, B. Fernández-Domínguez, S. Heinitz, N. Patronis, Carlos Guerrero, M. Brugger, I. Duran, S. Valenta, Marco Calviani, A. Stamatopoulos, C. Beinrucker, A. Saxena, E. Jericha, C. Wolf, A. G. Smith, Roberto Losito, T. Glodariu, Paolo Finocchiaro, K. Rajeev, Philip Woods, Alberto Mengoni, J. A. Ryan, P. Schillebeeckx, Francesca Matteucci, V. Ketlerov, C. Weiss, R. Vlastou, A. Goverdovski, R. Dressler, A. Tsinganis, Damir Bosnar, Y. Kadi, P. Kavrigin, P. V. Sedyshev, F. Bečvář, Nicola Colonna, Hideo Harada, E. Dupont, J. Billowes, E. Griesmayer, M. Mastromarco, L. A. Damone, M. S. Robles, Anton Wallner, E. A. Maugeri, J. Balibrea, L. Audouin, M. Diakaki, E. Berthoumieux, V. Furman, Petar Žugec, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, n_TOF, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Gobierno de España, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Chen, Y.H., Tassan-Got, L., Audouin, L., Le Naour, C., Durán, I., Casarejos, E., Aberle, O., Andrzejewski, J., Bécares, V., Bacak, M., Balibrea, J., Barbagallo, M., Barros, S., Bečvář, F., Beinrucker, C., Berthoumieux, E., Billowes, J., Bosnar, D., Brugger, M., Caamaño, M., Calviño, F., Calviani, M., Cano-Ott, D., Cardella, R., Casanovas, A., Castelluccio, D.M., Cerutti, F., Chiaveri, E., Colonna, N., Cortés, G., Cortés-Giraldo, M.A., Cosentino, L., Damone, L.A., Diakaki, M., Domingo-Pardo, C., Dressler, R., Dupont, E., Fernández-Domínguez, B., Ferrari, A., Ferreira, P., Finocchiaro, P., Furman, V., Göbel, K., Gómez-Hornillos, M.B., García, A.R., Gawlik, A., Glodariu, T., Gonçalves, I.F., González, E., Goverdovski, A., Griesmayer, E., Guerrero, C., Gunsing, F., Harada, H., Heftrich, T., Heinitz, S., Heyse, J., Jenkins, D.G., Jericha, E., Käppeler, F., Kadi, Y., Katabuchi, T., Kavrigin, P., Ketlerov, V., Khryachkov, V., Kimura, A., Kivel, N., Kokkoris, M., Krtička, M., Leal-Cidoncha, E., Lederer, C., Leeb, H., Lerendegui-Marco, J., Meo, S. Lo, Lonsdale, S.J., Losito, R., Macina, D., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P., Mastromarco, M., Matteucci, F., Maugeri, E.A., Mendoza, E., Mengoni, A., Milazzo, P.M., Mingrone, F., Mirea, M., Montesano, S., Musumarra, A., Nolte, R., Oprea, A., Patronis, N., Pavlik, A., Perkowski, J., Porras, J.I., Praena, J., Quesada, J.M., Rajeev, K., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Rout, P.C., Rubbia, C., Ryan, J.A., Sabaté-Gilarte, M., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Sedyshev, P., Smith, A.G., Stamatopoulos, A., Tagliente, G., Tain, J.L., Tarifeño-Saldivia, A., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Wallner, A., Warren, S., Weigand, M., Weiss, C., Wolf, C., Woods, P.J., Wright, T., Ugec, P., and Lo Meo, S.
Subjects: nTOF, QC1-999, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], Neutron, 01 natural sciences, Nuclear physics, Physics and Astronomy (all), CERN, 0103 physical sciences, ddc:530, 010306 general physics, Neutrons, Physics, Flux, Large Hadron Collider, Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, Beam, Neutron radiation, Accelerators and Storage Rings, Parallel plate, Characterization (materials science), Beam (structure)
Abstract: The experimental area 2 (EAR-2) at CERNs neutron time-of-flight facility (n TOF), which is operational since 2014, is designed and built as a short-distance complement to the experimental area 1 (EAR-1). The Parallel Plate Avalanche Counter (PPAC) monitor experiment was performed to characterize the beam profile and the shape of the neutron flux at EAR-2. The prompt γ-flash which is used for calibrating the time-of-flight at EAR-1 is not seen by PPAC at EAR-2, shedding light on the physical origin of this γ-flash., The USC group contribution has been partly supported by Spanish grant FPA2013-46236-P.
Published: 2017
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19. 7Be(n,α) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n-TOF facility at CERN

Author: M. Mirea, J. Marganiec, F. Calviño, H. Leeb, V. Bécares, J. Perkowski, Petar Žugec, P. F. Mastinu, A. Musumarra, D. G. Jenkins, Tanja Heftrich, F. Gunsing, P. Vaz, V. Furman, Y. H. Chen, Tatsuya Katabuchi, A. Riego-Perez, L. Cosentino, Cristian Massimi, S. Heinitz, A. Casanovas, E. A. Maugeri, Alberto Ventura, A. Saxena, Ariel Tarifeño-Saldivia, S. J. Lonsdale, S. Barros, G. Vannini, C. Wolf, J. Lerendegui-Marco, O. Aberle, F. Käppeler, A. Tsinganis, E. Berthoumieux, M. Krtička, I. F. Gonçalves, A. Kimura, Alfredo Ferrari, Mario Weigand, J. Billowes, N. Kivel, T. Martinez, Nicola Colonna, E. Dupont, M. A. Cortés-Giraldo, A. Stamatopoulos, E. Chiaveri, G. Cortes, D. Cano-Ott, Rene Reifarth, V. Khryachkov, E. González, Alberto Mengoni, P. Ferreira, Stefan Schmidt, Mario Barbagallo, D. Schumann, J. I. Porras, J. M. Quesada, L. Tassan-Got, F. Bečvář, R. Cardella, A. Pavlik, G. Tagliente, C. Domingo-Pardo, K. Rajeev, B. Fernández-Domínguez, Francesca Matteucci, E. Jericha, T. Glodariu, Paolo Finocchiaro, J. L. Tain, P. Schillebeeckx, M. Bacak, J. A. Ryan, M. Caamaño, M. Diakaki, F. Cerutti, Roberto Losito, P. V. Sedyshev, L. Audouin, A. Oprea, J. Heyse, Hideo Harada, D. M. Castelluccio, M. Mastromarco, Javier Praena, S. Lo Meo, Carlos Guerrero, Anton Wallner, S. Montesano, J. Balibrea, S. Warren, M. Sabaté-Gilarte, V. Variale, R. Nolte, A. Goverdovski, E. Leal-Cidoncha, A. Gawlik, Thomas Rauscher, P. C. Rout, C. Lederer, S. Valenta, F. Mingrone, J. Andrzejewski, Marco Calviani, Carlo Rubbia, V. Vlachoudis, A. G. Smith, V. Ketlerov, Philip Woods, P. M. Milazzo, C. Weiss, R. Vlastou, A. R. García, Damir Bosnar, Y. Kadi, M. Brugger, K. Göbel, C. Beinrucker, T. Wright, M. Kokkoris, N. Patronis, I. Duran, R. Dressler, P. Kavrigin, E. Griesmayer, L. A. Damone, E. Mendoza, D. Macina, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Mengoni, A., Lo Meo, S., Castelluccio, D. M., Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia, Barbagallo, M., Colonna, N., Aberle, O., Andrzejewski, J., Audouin, L., Bécares, V., Bacak, M., Balibrea, J., Barros, S., Bečvář, F., Beinrucker, C., Berthoumieux, E., Billowes, J., Bosnar, D., Brugger, M., Caamaño, M., Calviño, F., Calviani, M., Cano-Ott, D., Cardella, R., Casanovas, A., Castelluccio, D.M., Cerutti, F., Chen, Y.H., Chiaveri, E., Cortés, G., Cortés-Giraldo, M.A., Cosentino, L., Damone, L.A., Diakaki, M., Domingo-Pardo, C., Dressler, R., Dupont, E., Durán, I., Fernández-Domínguez, B., Ferrari, A., Ferreira, P., Finocchiaro, P., Furman, V., Göbel, K., García, A.R., Gawlik, A., Glodariu, T., Gonçalves, I.F., González, E., Goverdovski, A., Griesmayer, E., Guerrero, C., Gunsing, F., Harada, H., Heftrich, T., Heinitz, S., Heyse, J., Jenkins, D.G., Jericha, E., Käppeler, F., Kadi, Y., Katabuchi, T., Kavrigin, P., Ketlerov, V., Khryachkov, V., Kimura, A., Kivel, N., Kokkoris, M., Krtička, M., Leal-Cidoncha, E., Lederer, C., Leeb, H., Lerendegui-Marco, J., Meo, S. Lo, Lonsdale, S.J., Losito, R., Macina, D., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P., Mastromarco, M., Matteucci, F., Maugeri, E.A., Mendoza, E., Milazzo, P.M., Mingrone, F., Mirea, M., Montesano, S., Musumarra, A., Nolte, R., Oprea, A., Patronis, N., Pavlik, A., Perkowski, J., Porras, J.I., Praena, J., Quesada, J.M., Rajeev, K., Rauscher, T., Reifarth, R., Riego-Perez, A., Rout, P.C., Rubbia, C., Ryan, J.A., Sabaté-Gilarte, M., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Sedyshev, P., Smith, A.G., Stamatopoulos, A., Tagliente, G., Tain, J.L., Tarifeño-Saldivia, A., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Wallner, A., Warren, S., Weigand, M., Weiss, C., Wolf, C., Woods, P.J., Wright, T., and Ugec, P.
Subjects: Astrofísica, nTOF, QC1-999, chemistry.chemical_element, Neutron, Astrophysics, 01 natural sciences, 7. Clean energy, Nuclear physics, Physics and Astronomy (all), Big Bang nucleosynthesis, Nucleosynthesis, CERN, 0103 physical sciences, Nuclear astrophysics, Astrophysics::Solar and Stellar Astrophysics, 010306 general physics, Nuclear Experiment, Astrophysics::Galaxy Astrophysics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Physics, Alpha, Large Hadron Collider, Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, Stars, chemistry, Lithium, Halo, Nucleosíntesi
Abstract: One of the most puzzling problems in Nuclear Astrophysics is the “Cosmological Lithium Problem”, i.e the discrepancy between the primordial abundance of $^{7}$Li observed in metal poor halo stars (Asplund et al. in Astrophys J 644:229–259, 2006, [1]), and the one predicted by Big Bang Nucleosynthesis (BBN). One of the reactions that could have an impact on the problem is $^{7}$Be(n,p)$^{7}$Li. Despite of the importance of this reaction in BBN, the cross-section has never been directly measured at the energies of interest for BBN. Taking advantage of the innovative features of the second experimental area at the n$\_$TOF facility at CERN (Sabate-Gilarte et al. in Eur Phys J A 53:210, 2017, [2]; Weiss et al. in NIMA 799:90, 2015, [3]), an accurate measurement of $^{7}$Be(n,p) cross section has been recently performed at n$\_$TOF, with a pure $^{7}$Be target produced by implantation of a $^{7}$Be beam at ISOLDE. The mesurement started in April 2016 and lasted for two months. The experimental procedure, the setup used in the measurement and the results obtained so far will be here presented.
Published: 2017

20. Time-of-flight and activation experiments on 147Pm and 171Tm for astrophysics

Author: E. Leal-Cidoncha, P. M. Milazzo, M. Mastromarco, Rene Reifarth, O. Aberle, Simone Gilardoni, A. Gawlik, J. M. Quesada-Molina, Thomas Rauscher, D. Radeck, Michael Paul, J. Marganiec, R. Cardella, E. Berthoumieux, Javier Praena, S. Lo Meo, Leonid Weissman, M. Diakaki, M. Kokkoris, A. S. Brown, L. Tassan-Got, Anton Wallner, M. Caamaño, F. Cerutti, M. Tessler, L. Cosentino, J. Balibrea, S. Valenta, G. Cortes, A. Stamatopoulos, Deniz Kurtulgil, A. Oprea, N. V. Sosnin, J. Heyse, Marco Calviani, F. Mingrone, J. Andrzejewski, A. G. Smith, A. Kimura, D. Macina, Ariel Tarifeño-Saldivia, S. J. Lonsdale, J. L. Tain, A. Saxena, A. R. García, F. Gunsing, N. Patronis, Annamaria Mazzone, Petar Žugec, M. Bacak, I. Duran, P. Schillebeeckx, Philip Woods, S. Halfon, A. Casanovas, P. F. Mastinu, Ulli Köster, J. Lerendegui-Marco, P. Ferreira, Hideo Harada, Alfredo Ferrari, Mario Barbagallo, S. Warren, R. Dressler, Cristian Massimi, V. Variale, A. Kalamara, C. Weiss, D. Schumann, R. Vlastou, G. Tagliente, P. Kavrigin, I. F. Gonçalves, M. Sabaté-Gilarte, P. C. Rout, E. Mendoza, Y. H. Chen, Alexandru Negret, E. Griesmayer, R. Nolte, L. A. Damone, S. Heinitz, F. Becvar, A. Tsinganis, C. Lederer, A. Masi, E. Jericha, T. Glodariu, Paolo Finocchiaro, Damir Bosnar, Y. Kadi, F. Käppeler, J. A. Ryan, D. G. Jenkins, E. A. Maugeri, K. Göbel, N. Kivel, Ignacio Porras, Nicola Colonna, E. Dupont, G. Vannini, T. Wright, M. Krtička, E. González, M. A. Cortés-Giraldo, B. Fernández-Domínguez, T. Martinez, F. Calviño, L. Audouin, H. Leeb, Alberto Mengoni, J. Perkowski, Carlo Rubbia, V. Vlachoudis, Carlos Guerrero, P. Vaz, Alberto Ventura, A. Musumarra, E. Chiaveri, D. Cano-Ott, A. Pavlik, C. Domingo-Pardo, J. Billowes, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia, Vannini, G., Mengoni, A., Lo Meo, S., Guerrero, C., Lerendegui-Marco, J., Domingo-Pardo, C., Casanovas, A., Dressler, R., Halfon, S., Heinitz, S., Kivel, N., Köster, U., Paul, M., Quesada-Molina, J.M., Schumann, D., Tarifeño-Saldivia, A., Tessler, M., Weissman, L., Aberle, O., Andrzejewski, J., Audouin, L., Bacak, M., Balibrea, J., Barbagallo, M., Becvar, F., Berthoumieux, E., Billowes, J., Bosnar, D., Brown, A., Caamaño, M., Calviño, F., Calviani, M., Cano-Ott, D., Cardella, R., Cerutti, F., Chen, Y.H., Chiaveri, E., Colonna, N., Cortés, G., Cortés-Giraldo, M.A., Cosentino, L., Damone, L.A., Diakaki, M., Dupont, E., Durán, I., Fernández-Domínguez, B., Ferrari, A., Ferreira, P., Finocchiaro, P., Göbel, K., García, A.R., Gawlik, A., Gilardoni, S., Glodariu, T., Gonçalves, I.F., González, E., Griesmayer, E., Gunsing, F., Harada, H., Heyse, J., Jenkins, D.G., Jericha, E., Käppeler, F., Kadi, Y., Kalamara, A., Kavrigin, P., Kimura, A., Kokkoris, M., Krticka, M., Kurtulgil, D., Leal-Cidoncha, E., Lederer, C., Leeb, H., Meo, S. Lo, Lonsdale, S.J., Macina, D., Marganiec, J., Martínez, T., Masi, A., Massimi, C., Mastinu, P., Mastromarco, M., Maugeri, E.A., Mazzone, A., Mendoza, E., Milazzo, P.M., Mingrone, F., Musumarra, A., Negret, A., Nolte, R., Oprea, A., Patronis, N., Pavlik, A., Perkowski, J., Porras, I., Praena, J., Radeck, D., Rauscher, T., Reifarth, R., Rout, P.C., Rubbia, C., Ryan, J.A., Sabaté-Gilarte, M., Saxena, A., Schillebeeckx, P., Smith, A.G., Sosnin, N.V., Stamatopoulos, A., Tagliente, G., Tain, J.L., Tassan-Got, L., Tsinganis, A., Valenta, S., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Wallner, A., Warren, S., Weiss, C., Woods, P.J., Wright, T., Ugec, P., and Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Subjects: QC1-999, Neutron, Scintillator, 01 natural sciences, Nuclear physics, Physics and Astronomy (all), Stellar nucleosynthesis, Nucleosynthesis, 0103 physical sciences, Neutron cross section, 010306 general physics, Nuclear Experiment, Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Isotope, Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, Tof, Time of flight, Neutron capture, 13. Climate action, Nucleosíntesi
Abstract: The neutron capture cross section of several key unstable isotopes acting as branching points in the s-process are crucial for stellar nucleosynthesis studies, but they are very challenging to measure due to the difficult production of sufficient sample material, the high activity of the resulting samples, and the actual (n,γ ) measurement, for which high neutron fluxes and effective background rejection capabilities are required. As part of a new program to measure some of these important branching points, radioactive targets of 147Pm and 171Tm have been produced by irradiation of stable isotopes at the ILL high flux reactor. Neutron capture on 146Nd and 170Er at the reactor was followed by beta decay and the resulting matrix was purified via radiochemical separation at PSI. The radioactive targets have been used for time-of-flight measurements at the CERN n TOF facility using the 19 and 185m beam lines during 2014 and 2015. The capture cascades were detected using a set of four C6D6 scintillators, allowing to observe the associated neutron capture resonances. The results presented in this work are the first ever determination of the resonance capture cross section of 147Pm and 171Tm. Activation experiments on the same 147Pm and 171Tm targets with a high-intensity 30 keV quasi-Maxwellian flux of neutrons will be performed using the SARAF accelerator and the Liquid-Lithium Target (LiLiT) in order to extract the corresponding Maxwellian Average Cross Section (MACS). The status of these experiments and preliminary results will be presented and discussed as well., The authors acknowledge financial support by Spanish FPA2013-45083-P and FPA2014-53290-C2-2-P projects and the EC FP7 projects NeutAndalus (Grant No. 334315) and CHANDA (Grant No. 605203).
Published: 2017

21. Be7(n,α)He4Reaction and the Cosmological Lithium Problem: Measurement of the Cross Section in a Wide Energy Range at n_TOF at CERN

Author: D. Macina, Carlos Guerrero, M. Sabaté-Gilarte, Rugard Dressler, P. C. Rout, C. Rubbia, W.I. Furman, P. V. Sedyshev, Y. H. Chen, A. Kimura, L. Cosentino, Srinivasan Ganesan, M. Mastromarco, A. Tsinganis, G. Vannini, A. García-Rios, F. Mingrone, C. Lederer, Anton Wallner, Nicola Colonna, J. Andrzejewski, M. Caamaño, A. Casanovas, Mario Barbagallo, Vasilis Vlachoudis, G. Cortes, M. Krtička, P. Kavrigin, N. Patronis, A. K. Saxena, Ralf Nolte, H. Leeb, Arnaud Ferrari, Ignacio Porras, Damir Bosnar, A. Oprea, T. Martinez, Mario Weigand, A. Stamatopoulos, E. Griesmayer, J. Billowes, L. A. Damone, Hideo Harada, M. Mirea, P. Ferreira, M. A. Cortés-Giraldo, S. Montesano, D. Cano-Ott, F. Calviño, R. Cardella, J. Perkowski, J. Vollaire, E. A. Maugeri, F. Gunsing, J. Balibrea-Correa, G. Tagliente, Javier Praena, S. Lo Meo, Cristian Massimi, M. Kokkoris, O. Aberle, E. Jericha, F. Bečvář, Pierfrancesco Mastinu, T. Glodariu, Paolo Finocchiaro, M. Piscopo, M. Bacak, Dorothea Schumann, Ariel Tarifeño-Saldivia, S. J. Lonsdale, J. A. Ryan, E. Mendoza, D. G. Jenkins, E. Leal-Cidoncha, I. Duran, M. Diakaki, P. Vaz, C. Weiß, Roberto Losito, Peter Schillebeeckx, A. Gawlik, Thomas Rauscher, K. Rajeev, P. M. Milazzo, J. Marganiec, F. Cerutti, E. Chiaveri, C. Beinrucker, A. Pavlik, S. Valenta, C. Domingo-Pardo, V. Bécares, E. González-Romero, Marco Calviani, Alfio Pappalardo, A. Mengoni, A. G. Smith, Philip Woods, B. Fernández-Domínguez, F. Käppeler, M. Ayranov, J. L. Tain, M. Brugger, I. F. Gonçalves, Niko Kivel, S. Heinitz, S. Altstadt, S. Warren, V. Variale, S. Barros, Tatsuya Katabuchi, A. Ventura, Rene Reifarth, Stefan Schmidt, J. M. Quesada, L. Tassan-Got, Sergio Cristallo, A. Musumarra, Tanja Heftrich, Annamaria Mazzone, Petar Žugec, A. Riego-Perez, Kathrin Göbel, Jan Heyse, R. Vlastou, E. Berthoumieux, L. Audouin, T. J. Wright, C. Wolf, E. Dupont, J. Lerendegui, A. J. M. Plompen, and D. M. Castelluccio
Subjects: Nuclear reaction, Physics, 010308 nuclear & particles physics, General Physics and Astronomy, chemistry.chemical_element, Alpha particle, Neutron radiation, 7. Clean energy, 01 natural sciences, Neutron temperature, Nuclear physics, Big Bang nucleosynthesis, chemistry, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Neutron, Lithium, Nuclear Experiment, 010306 general physics
Abstract: The energy-dependent cross section of the (7)Bed(n,alpha)He-4 reaction, of interest for the so-called cosmological lithium problem in big bang nucleosynthesis, has been measured for the first time from 10 meV to 10 keV neutron energy. The challenges posed by the short half-life of Be-7 and by the low reaction cross section have been overcome at n_TOF thanks to an unprecedented combination of the extremely high luminosity and good resolution of the neutron beam in the new experimental area (EAR2) of the n_TOF facility at CERN, the availability of a sufficient amount of chemically pure Be-7, and a specifically designed experimental setup. Coincidences between the two alpha particles have been recorded in two Si-Be-7-Si arrays placed directly in the neutron beam. The present results are consistent, at thermal neutron energy, with the only previous measurement performed in the 1960s at a nuclear reactor. The energy dependence reported here clearly indicates the inadequacy of the cross section estimates currently used in BBN calculations. Although new measurements at higher neutron energy may still be needed, the n_TOF results hint at a minor role of this reaction in BBN, leaving the long-standing cosmological lithium problem unsolved.
Published: 2016

22. Helium Behaviour In Stoichiometric And Hyper-Stoichiometric Uo2

Author: Philippe E. Raison, Jean-Yves Colle, E.-A. Maugeri, Zeynep Talip, Thierry Wiss, E. Gilabert, D. Staicu, R.J.M. Konings, M. Ernstberger, Radioactivite Environnement (RADEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), and Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Diffraction, Materials science, Scanning electron microscope, Diffusion, Analytical chemistry, Thermal desorption, Mineralogy, chemistry.chemical_element, 02 engineering and technology, UO2, Helium, 01 natural sciences, 010305 fluids & plasmas, Hyper-stoichiometric UO2, 0103 physical sciences, Materials Chemistry, U3O8, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Thermogravimetry, chemistry, Ceramics and Composites, Crystallite, 0210 nano-technology, Stoichiometry
Abstract: Understanding the long-term behaviour of the UO2 spent fuel in terms of helium build-up and oxidation is a very important issue for safety aspects of storage and disposal. Although helium behaviour in stoichiometric UO2 has been studied by many authors, it has not been well established and there is a lack of experimental studies in non-stoichiometric UO2. In this study, an infusion technique was chosen to introduce helium in stoichiometric and hyperstoichiometric single and polycrystalline UO2 and polycrystalline U3O8 samples. Characterization of the samples before and after infusion and after thermal desorption measurements were performed by thermogravimetry, X-ray diffraction, laser flash technique and scanning electron microscopy. It was observed that the increase of stoichiometry in UO2 affects barely the dissolved helium quantity (under the same infusion conditions as in stoichiometric), while it has a more pronounced influence on the helium diffusion. These two effects are much more pronounced for U3O8. (C) 2013 Elsevier Ltd. All rights reserved.
Published: 2014

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22 results on '"E. A. Maugeri"'

1. Status report of the n_TOF facility after the 2nd CERN long shutdown period

2. Neutron-induced cross section measurements

3. Constraints on the dipole photon strength for the odd uranium isotopes

4. Evidence of a Near-Threshold Resonance in B11 Relevant to the β -Delayed Proton Emission of Be11

5. High accuracy, high resolution $^{235}$U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV

6. Measurement of the 241Am(n,γ) cross section at the n_TOF facility at CERN

7. The Stellar 72Ge(n, γ) Cross Section for weak s-process: A First Measurement at n_TOF

8. Detector set up for the measurements of the neutron-induced fission cross section of 235U relative to n-p scattering up to 150 MeV at CERN-n_TOF

9. Characterization of a detector setup for the measurement of the 235U(n,f) cross section relative to n-p scattering up to 500 MeV at the n_TOF facility at CERN

10. Shape Coexistence at Zero Spin in ^{64}Ni Driven by the Monopole Tensor Interaction

11. A compact fission detector for fission-tagging neutron capture experiments with radioactive fissile isotopes

12. Neutron Capture on the s -Process Branching Point Tm 171

13. In vitro solubility of 7Be particles released from a damaged source

14. Measurement of the Ge70(n,γ) cross section up to 300 keV at the CERN n_TOF facility

15. Experimental setup and procedure for the measurement of the $^7$Be(n,p)$^7$Li reaction at n_TOF

16. The Nuclear astrophysics program at n_TOF (CERN)

17. New measurement of the 242Pu(n,γ) cross section at n-TOF-EAR1 for MOX fuels: Preliminary results in the RRR

18. Characterization of the n-TOF EAR-2 neutron beam

19. 7Be(n,α) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n-TOF facility at CERN

20. Time-of-flight and activation experiments on 147Pm and 171Tm for astrophysics

21. Be7(n,α)He4Reaction and the Cosmological Lithium Problem: Measurement of the Cross Section in a Wide Energy Range at n_TOF at CERN

22. Helium Behaviour In Stoichiometric And Hyper-Stoichiometric Uo2

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22 results on '"E. A. Maugeri"'

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