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1. Direct radiative capture calculations on 56Fe

Author

Gkatis Georgios, Diakaki Maria, Mengoni Alberto, and Noguere Gilles

Subjects
Physics, QC1-999
Abstract

The theoretical description of the 56Fe neutron induced reaction cross sections is the subject of many studies within the nuclear data community. Based on these studies, issues were discovered in the evaluated cross sections of the 56Fe(n,γ) reaction. Those issues were addressed by implementing changes in the ENDF/B-VIII.0 evaluation. The aim of this work is to provide a physical interpretation for these changes by exploring the direct radiative capture mechanism for 56Fe. For the calculations, a dedicated code (PDIX) was utilized. The first results of the direct capture cross section of 56Fe are presented and discussed.

Published
2024
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2. Experimental setup of the 239Pu neutron capture and fission cross-section measurements at n_TOF, CERN

Author

Sanchez-Caballero Adrian, Alcayne Victor, Andrzejewski Józef, Cano-Ott Daniel, Cardinaels Thomas, Dries Peter, Gawlik-Ramiega Aleksandra, González-Romero Enrique, Heyse Jan, Leinders Gregory, Martínez Trinitario, Mendoza Emilio, Moens Andre, Pérez de Rada Alberto, Perkowski Jarosław, Plompen Arjan, Paradela Carlos, Schillebeeckx Peter, Sibbens Goedele, Van Hecke Karen, Vanaken Koen, Vanleeuw David, Verguts Ken, Verwerft Marc, Wynants Ruud, Aberle Oliver, Altieri Saverio, Amaducci Simone, Babiano-Suarez Victor, Bacak Michael, Balibrea Correa Javier, Beltrami Chiara, Bennett Samuel, Bernardes Ana-Paula, Berthoumieux Eric, Beyer Roland, Boromiza Marian, Bosnar Damir, Caamaño Manuel, Calviño Francisco, Calviani Marco, Casanovas Adria, Castelluccio Donato, Cerutti Francesco, Cescutti Gabriele, Chasapoglou Sotirios, Chiaveri Enrico, Colombetti Paolo, Colonna Nicola, Console Camprini Patrizio, Cortés Guillem, Cortés-Giraldo Miguel, Cosentino Luigi, Cristallo Sergio, Dellmann, Di Castro Mario, Di Maria Salvatore, Diakaki Maria, Dietz Mirco, Domingo-Pardo César, Dressler Rugard, Dupont Emmeric, Durán Ignacio, Eleme Zinovia, Fargier Sylvain, Fernández Begoña, Fernández-Domínguez Beatriz, Finocchiaro Paolo, Fiore Salvatore, Furman Valter, García-Infantes Francisco, Gervino Gianpiero, Gilardoni Simone, Guerrero Carlos, Gunsing Frank, Gustavino Carlo, Hillman William, Jenkins David, Jericha Erwin, Junghans Arnd, Kadi Yacine, Kaperoni Kalliopi, Kaur Gurpreet, Kimura Atsushi, Knapová Ingrid, Kokkoris Michael, Kopatch Yury, Krtička Milan, Kyritsis Nikolaos, Ladarescu Ion, Lederer-Woods Claudia, Lerendegui-Marco Jorge, Lerner Giuseppe, Manna Alice, Masi Alessandro, Massimi Cristian, Mastinu Pierfrancesco, Mastromarco Mario, Maugeri Emilio-Andrea, Mazzone Annamaria, Mengoni Alberto, Michalopoulou Veatriki, Milazzo Paolo, Mucciola Riccardo, Murtas Fabrizio, Musacchio-Gonzalez Elizabeth, Musumarra Agatino, Negret Alexandru, Pérez-Maroto Pablo, Patronis Nikolas, Pavón-Rodríguez José-Antonio, Pellegriti Maria, Petrone Cristina, Pirovano Elisa, Plaza del Olmo Julio, Pomp Stephan, Porras Ignacio, Praena Javier, Quesada José-Manuel, Reifarth René, Rochman Dimitri, Romanets Yuriy, Rubbia Carlo, Sabaté-Gilarte Marta, Schumann Dorothea, Sekhar Adhitya, Smith Gavin, Sosnin Nikolay, Stamati Maria-Elisso, Sturniolo Alessandro, Tagliente Giuseppe, Tarifeño-Saldivia Ariel, Tarrío Diego, Torres-Sánchez Pablo, Vagena, Valenta Stanislav, Variale Vincenzo, Vaz Pedro, Vecchio Gianfranco, Vescovi Diego, Vlachoudis Vasilis, Vlastou Rosa, Wallner Anton, Woods Philip-John, Wright Tobias, Zarrella Roberto, and Žugec Petar

Subjects
Physics, QC1-999
Abstract

The experimental setup of the new measurement of 239Pu fission and capture cross-section in the n_TOF time-of-flight facility at CERN is presented. The measurement aims to address the needs and demands of nuclear data users. The experiment incorporates an innovative fast Fission Fragment Detector and the n_TOF Total Absorption Calorimeter, enabling the implementation of the fission tagging technique. Preliminary results exhibit the robust performance of the detector systems, along with the high quality of the new 239Pu samples. These samples were exclusively produced for this measurement by the European Commission’s Joint Research Centre in Geel.

Published
2024
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3. Development of a small Time-Projection-Chamber for the quasi-absolute neutron flux measurement

Author

Chatel Carole, Mathieu Ludovic, Aïche Mourad, Diakaki Maria, and Bouland Olivier

Subjects
Physics, QC1-999
Abstract

Accurate actinides fission cross sections around 1 MeV are of primary importance for the safety of generation IV reactors. To have accurate measurements, the neutron flux must also be accurately estimated. This is usually done with respect to the 235U(n,f) cross section. It is however possible to measure the neutron flux with respect to the 1H(n,n)p cross section which is a primary standard, providing an independent and precise measurement. Typically, the usual proton recoil technique uses a silicon detector for neutrons of energy between 1 and 70 MeV. However, the high electron and gamma background due to neutron production under irradiation makes the use of this or any other detector not suitable for an accurate measurement below 1 MeV. To this end, the Gaseous Proton Recoil Telescope is developed and characterized. The goal is to provide quasi-absolute neutron flux measurements with an accuracy better than 3%. It consists of a double ionization chamber with a Micromegas segmented detection plane and the gaseous pressure can be adjusted to protons – and hence neutron – energy. The sensitivity to gamma and electrons background, the intrinsic efficiency as well as the resolution of this detector have been investigated.

Published
2023
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4. Re-examining intermediate resonant structures in the 242Pu fission cross section

Author

Chatel Carole, Bouland Olivier, Noguère Gilles, Diakaki Maria, and Mathieu Ludovic

Subjects
Physics, QC1-999
Abstract

The study of the 242Pu fission cross section has become more important since this isotope is present in Pressurized Water Reactor Uranium Oxide and Mixed Oxide fuel, as well as in fast neutron reactors fuel. This nucleus has been also selected for monitoring the high neutron flux RJH reactor (CEA-Cadarache). For all these reasons, the fission cross section structure of this fertile isotope, and especially its class-II states resonances were investigated in this work. Two class-II states have been identified in the Resolved Resonance Range (RRR) and their parameters have been supplied to the CONRAD code. 68 class- II states have been identified in the Unresolved Resonant Range (URR) and their parameters have been added in the TALYS code data library to reproduce as well as possible the experimental fission cross section. The methodology to identify and insert the class-II states in RRR and URR is described here.

Published
2023
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5. Measurement of the 235U(n,f) cross section relative to the 10B(n,α) reaction with Micromegas detectors at the CERN n_TOF facility: First results

Author

Michalopoulou Veatriki, Diakaki Maria, Vlastou Rosa, Kokkoris Michael, Stamatopoulos Athanasios, Tsinganis Andrea, Eleme Zinovia, Patronis Nikolas, Heyse Jan, Schillebeeckx Peter, Tassan-Got Laurent, Barbagallo Massimo, Colonna Nicola, Urlass Sebastian, Macina Daniela, Chiaveri Enrico, Aberle Oliver, Alcayne Victor, Amaducci Simone, Andrzejewski Józef, Audouin Laurent, Babiano-Suarez Victor, Bacak Michael, Bennett Samuel, Berthoumieux Eric, Billowes Jon, Bosnar Damir, Brown Adam, Busso Maurizio, Caamaño Manuel, Caballero-Ontanaya Luis, Calviño Francisco, Calviani Marco, Cano-Ott Daniel, Casanovas Adria, Cerutti Francesco, Cortés Guillem, Cortés-Giraldo Miguel, Cosentino Luigi, Cristallo Sergio, Damone Lucia-Anna, Davies Paul-John, Dietz Mirco, Domingo-Pardo César, Dressler Rugard, Ducasse Quentin, Dupont Emmeric, Durán Ignacio, Fernández-Domínguez Beatriz, Ferrari Alfredo, Finocchiaro Paolo, Göbel Kathrin, Garg Ruchi, Gawlik-Ramięga Aleksandra, Gilardoni Simone, Gonçalves Isabel, González-Romero Enrique, Guerrero Carlos, Gunsing Frank, Harada Hideo, Heinitz Stephan, Jenkins David, Junghans Arnd, Käppeler† Franz, Kadi Yacine, Kimura Atsushi, Knapová Ingrid, Krtička Milan, Kurtulgil Deniz, Ladarescu Ion, Lederer-Woods Claudia, Leeb Helmut, Lerendegui-Marco Jorge, Lonsdale Sarah-Jane, Manna Alice, Martínez Trinitario, Masi Alessandro, Massimi Cristian, Mastinu Pierfrancesco, Mastromarco Mario, Maugeri Emilio-Andrea, Mazzone Annamaria, Mendoza Emilio, Mengoni Alberto, Milazzo Paolo, Mingrone Federica, Moreno-Soto Javier, Musumarra Agatino, Negret Alexandru, Nolte Ralf, Ogállar Francisco, Oprea Andreea, Pavlik Andreas, Perkowski Jarosław, Piersanti Luciano, Petrone Cristina, Pirovano Elisa, Porras Ignacio, Praena Javier, Quesada José-Manuel, Ramos-Doval Diego, Rauscher Thomas, Reifarth René, Rochman Dimitri, Rubbia Carlo, Sabaté-Gilarte Marta, Saxena Alok, Schumann Dorothea, Sekhar Adhitya, Smith Gavin, Sosnin Nikolay, Sprung Peter, Tagliente Giuseppe, Tain José, Tarifeño-Saldivia Ariel, Thomas Benedikt, Torres-Sánchez Pablo, Ulrich Jiri, Valenta Stanislav, Vannini Gianni, Variale Vincenzo, Vaz Pedro, Ventura Alberto, Vescovi Diego, Vlachoudis Vasilis, Wallner Anton, Woods Philip-John, Wright Tobias, and Žugec Petar

Subjects
Physics, QC1-999
Abstract

Neutron cross section measurements are often made relative to a neutron cross section standard. Thus, the accuracy of the neutron standards determines the best possible accuracy of the neutron measurements. The 235U(n,f) cross section is widely used as reference, while it is considered a standard at thermal point and between 0.15 to 200 MeV. For this reason, additional cross section data for the 235U(n,f) reaction are useful in order to improve the accuracy and to extend the energy range of the standard. In this work, preliminary results of the measurement of the 235U(n,f) cross-section relative to the standard 10B(n,a) reaction are presented. The high accuracy measurement was performed at the experimental area EAR-1 of the n_TOF facility at CERN, aiming at covering the energy range from the thermal region up to approximately 100 keV. The samples were produced at JRC-Geel in Belgium, while the experimental setup was based on Micromegas detectors.

Published
2023
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6. Towards the experimental validation of a small Time-Projection-Chamber for the quasi-absolute measurement of the fission cross section

Author

Chatel Carole, Mathieu Ludovic, Aïche Mourad, Diakaki Maria, Noguere Gilles, and Bouland Olivier

Subjects
gaseous proton recoil telescope, low energy neutron flux measurements, Physics, QC1-999
Abstract

To accurately measure neutron-induced fission cross sections, to characterize neutron-beam lines or to make dosimetric investigations, it is necessary to have high accuracy measurements of neutron fluence. It is possible to perform independent and precise neutron flux measurements with respect to the 1H(n,n)p elastic scattering cross section. The use of a silicon detector is recommended from 1 to 70 MeV neutron energy. However, it has been observed that a high electrons background forbids its use below 1 MeV. Hence, a new gaseous proton-recoil telescope is developed and characterized to overcome this limit. It should provide quasi-absolute neutron flux measurements with an accuracy around 3% and is not sensible to gamma and electrons background. It consists in two ionization chambers read by a segmented micromegas technology detection plane. The gas pressure inside is adjustable to the proton range in the detector and therefore to the neutron energy. This detector is described in details below and the newest results of its characterization are presented. A special attention is paid to detection efficiency measurements.

Published
2021
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7. Measurement of the delayed-neutron multiplicity and time constants in the thermal neutron induced fission of 235U at ILL

Author

Foligno Daniela, Leconte Pierre, Serot Olivier, Geslot Benoit, De Izarra Grégoire, Chebboubi Abdelhazize, Sardet Alix, Diakaki Maria, Tamagno Pierre, Billebaud Annick, Lecolley François-René, Soldner Torsten, Köster Ulli, Mutti Paolo, Pepino Alexandra, Méplan Olivier, Kessedjian Grégoire, Lecouey Jean-Luc, Mathieu Ludovic, and Marie-Nourry Nathalie

Subjects
Physics, QC1-999
Abstract

Delayed-neutron (DN) data is essential in inherent reactor safety and reactor control since it is needed for the estimation of the reactivity. Nowadays, discrepancies among the data in various international databases (JEFF, ENDF, JENDL) are large and bring excessive conservatism in the safety margins. The ALDEN (Average Lifetime of DElayed Neutrons) experiment, built in a collaboration between CEA and CNRS, aimed at re-measuring the DN data associated with several fissioning systems (average delayed-neutron yield and kinetic parameters). The first experimental campaign consisted in the integral measurement of the DN activity after the irradiation of an 235U target. It took place under the cold neutron flux of ILL (Institut Laue-Langevin) at the beginning of September 2018, in the PF1b experimental zone (doi:10.1016/j.nima.2006.03.020). The data analysis gave an average DN yield of 1.631E-02(2) DN/fiss and a mean precursors’ half-life of 8.93(9) s. The results are consistent with the literature, but they are affected by one third of the uncertainty.

Published
2020
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8. PandaX-III: Searching for Neutrinoless Double Beta Decay with High Pressure $^{136}$Xe Gas Time Projection Chambers

Author

Chen, Xun, Fu, Changbo, Galan, Javier, Giboni, Karl, Giuliani, Franco, Gu, Linghui, Han, Ke, Ji, Xiangdong, Lin, Heng, Liu, Jianglai, Ni, Kaixiang, Kusano, Hiroki, Ren, Xiangxiang, Wang, Shaobo, Yang, Yong, Zhang, Dan, Zhang, Tao, Zhao, Li, Sun, Xiangming, Hu, Shouyang, Jian, Siyu, Li, Xinglong, Li, Xiaomei, Liang, Hao, Zhang, Huanqiao, Zhao, Mingrui, Zhou, Jing, Mao, Yajun, Qiao, Hao, Wang, Siguang, Yuan, Ying, Wang, Meng, Khan, Amir N., Raper, Neill, Tang, Jian, Wang, Wei, Dong, Jianing, Feng, Changqing, Li, Chen, Liu, Jianbei, Liu, Shubin, Wang, Xiaolian, Zhu, Danyang, Castel, Juan F., Cebrián, Susana, Dafni, Theopisti, Garza, Javier G., Irastorza, Igor G., Iguaz, Francisco J., Luzón, Gloria, Mirallas, Hector, Aune, Stephan, Berthoumieux, Eric, Bedfer, Yann, Calvet, Denis, d'Hose, Nicole, Delbart, Alain, Diakaki, Maria, Ferrer-Ribas, Esther, Ferrero, Andrea, Kunne, Fabienne, Neyret, Damien, Papaevangelou, Thomas, Sabatié, Franck, Vanderbroucke, Maxence, Tan, Andi, Haxton, Wick, Mei, Yuan, Kobdaj, Chinorat, and Yan, Yu-Peng

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

Searching for the Neutrinoless Double Beta Decay (NLDBD) is now regarded as the topmost promising technique to explore the nature of neutrinos after the discovery of neutrino masses in oscillation experiments. PandaX-III (Particle And Astrophysical Xenon Experiment III) will search for the NLDBD of $^{136}$Xe at the China Jin Ping underground Laboratory (CJPL). In the first phase of the experiment, a high pressure gas Time Projection Chamber (TPC) will contain 200 kg, 90% $^{136}$Xe enriched gas operated at 10 bar. Fine pitch micro-pattern gas detector (Microbulk Micromegas) will be used at both ends of the TPC for the charge readout with a cathode in the middle. Charge signals can be used to reconstruct tracks of NLDBD events and provide good energy and spatial resolution. The detector will be immersed in a large water tank to ensure $\sim$5 m of water shielding in all directions. The second phase, a ton-scale experiment, will consist of five TPCs in the same water tank, with improved energy resolution and better control over backgrounds.

Published
2016

10. Direct radiative capture calculations on 56Fe.

Author

Gkatis, Georgios, Diakaki, Maria, Mengoni, Alberto, and Noguere, Gilles

Subjects
*RADIATIVE capture, *IRON isotopes, *NUCLEAR cross sections, *NEUTRON scattering, *NUCLEAR reactions
Abstract

The theoretical description of the 56Fe neutron induced reaction cross sections is the subject of many studies within the nuclear data community. Based on these studies, issues were discovered in the evaluated cross sections of the 56Fe(n,γ) reaction. Those issues were addressed by implementing changes in the ENDF/B-VIII.0 evaluation. The aim of this work is to provide a physical interpretation for these changes by exploring the direct radiative capture mechanism for 56Fe. For the calculations, a dedicated code (PDIX) was utilized. The first results of the direct capture cross section of 56Fe are presented and discussed. [ABSTRACT FROM AUTHOR]

Published
2024
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12. Cross Section Measurements of (n,x) Reactions In the Energy Range Between 16.4 and 18.9 MeV Using Highly Enriched Ge Isotopes

Author

Chasapoglou, Sotirios, primary, Vlastou, Roza, additional, Kokkoris, Michael, additional, Diakaki, Maria, additional, Michalopoulou, Veatriki, additional, Stamatopoulos, Athanasios, additional, Axiotis, Michael, additional, Harissopulos, Sotirios, additional, Lagoyannis, Anastasios, additional, Savva, Marilia I., additional, Stamatelatos, Ion E., additional, Vasilopoulou, Theodora, additional, and Lederer-Woods, Claudia, additional

Published
2023
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14. Activation Cross Section Measurement of the (n,2n) Reaction on 203Tl at 16.4 MeV, 18.9 MeV and Theoretical Calculations via the EMPIRE code

Author

Patas, Stavros, primary, Chasapoglou, Sotiris, additional, Axiotis, Michalis, additional, Diakaki, Maria, additional, Gkatis, George, additional, Harissopulos, Sotirios, additional, Kokkoris, Michael, additional, Lagoyannis, Anastasios, additional, Tsivouraki, Eleni, additional, and Vlastou, Roza, additional

Published
2023
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15. Measurement of the 77Se(n,¿) cross section up to 200 keV at the n_TOF facility at CERN

Author

Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Sosnin, Nikolay Viktorovich, Lederer Woods, Claudia, Krticka, Milan, Garg, R., Dietzel, Martin, Bacak, Michael, Barbagallo, Massimo, Battino, Umberto, Cristallo, Sergio, Damone, Lucia Anna, Diakaki, Maria, Calviño Tavares, Francisco, Casanovas Hoste, Adrià, Cortés Rossell, Guillem Pere, Tarifeño Saldivia, Ariel Esteban, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Sosnin, Nikolay Viktorovich, Lederer Woods, Claudia, Krticka, Milan, Garg, R., Dietzel, Martin, Bacak, Michael, Barbagallo, Massimo, Battino, Umberto, Cristallo, Sergio, Damone, Lucia Anna, Diakaki, Maria, Calviño Tavares, Francisco, Casanovas Hoste, Adrià, Cortés Rossell, Guillem Pere, and Tarifeño Saldivia, Ariel Esteban

Abstract

The 77Se(n,¿) reaction is of importance for 77Se abundance during the slow neutron capture process in massive stars. We have performed a new measurement of the 77Se radiative neutron capture cross section at the Neutron Time-of-Flight facility at CERN. Resonance capture kernels were derived up to 51 keV and cross sections up to 200 keV. Maxwellian-averaged cross sections were calculated for stellar temperatures between kT=5keV and kT=100keV, with uncertainties between 4.2% and 5.7%. Our results lead to substantial decreases of 14% and 19% in 77Se abundances produced through the slow neutron capture process in selected stellar models of 15M¿ and 2M¿, respectively, compared to using previous recommendation of the cross section., This work was supported by the UK Science and Facilities Council (ST/M006085/1), the MSMT of the Czech Republic, the Charles University UNCE/SCI/013 project, the European Research Council ERC-2015-StG No. 677497, and by the funding agencies of the participating institutes. In line with the principles that apply to scientific publishing and the CERN policy in matters of scientific publications, the n_TOF Col- laboration recognizes the work of Y. Kopatch and V. Furman (JINR, Russia), who have contributed to the experiment used to obtain the results described in this paper., Article signat per 131 autors/es: N. V. Sosnin , C. Lederer-Woods, M. Krtiˇcka, R. Garg, M. Dietz, M. Bacak, M. Barbagallo, U. Battino, S. Cristallo, L. A. Damone, M. Diakaki, S. Heinitz, D. Macina, M. Mastromarco, F. Mingrone, A. St. J. Murphy, G. Tagliente, S. Valenta, D. Vescovi, O. Aberle, V. Alcayne, S. Amaducci, J. Andrzejewski, L. Audouin, V. Bécares, V. Babiano-Suarez, F. Beˇcváˇr, G. Bellia, E. Berthoumieux, J. Billowes, D. Bosnar, A. Brown, M. Busso, M. Caamaño, L. Caballero, F. Calviño, M. Calviani, D. Cano-Ott, A. Casanovas, F. Cerutti, Y. H. Chen, E. Chiaveri, N. Colonna, G. Cortés, M. A. Cortés-Giraldo, L. Cosentino, C. Domingo-Pardo, R. Dressler, E. Dupont, I. Durán, Z. Eleme, B. Fernández-Domínguez, A. Ferrari, P. Finocchiaro, K. Göbel, A. Gawlik-Rami˛ega, S. Gilardoni, T. Glodariu, I. F. Gonçalves, E. González-Romero, C. Guerrero, F. Gunsing, H. Harada, J. Heyse, D. G. Jenkins, E. Jericha, F. Käppeler, Y. Kadi, A. Kimura, N. Kivel, M. Kokkoris, D. Kurtulgil, I. Ladarescu, H. Leeb, J. Lerendegui-Marco, S. Lo Meo, S. J. Lonsdale, A. Manna, T. Martínez, A. Masi, C. Massimi, P. Mastinu, F. Matteucci, E. A. Maugeri, A. Mazzone, E. Mendoza, A. Mengoni, V. Michalopoulou, P. M. Milazzo, A. Musumarra, A. Negret, R. Nolte, F. Ogállar, A. Oprea, 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, P. Schillebeeckx, D. Schumann, A. G. Smith, A. Stamatopoulos, J. L. Tain, T. Talip, A. Tarifeño-Saldivia, L. Tassan-Got, P. Torres-Sánchez, A. Tsinganis, J. Ulrich, S. Urlass, G. Vannini, V. Variale, P. Vaz, A. Ventura, V. Vlachoudis, R. Vlastou, A. Wallner, P. J. Woods,T. Wright, and P. Žugec., Postprint (published version)

Published
2023

16. Measurement of the neutron-induced fission cross section of Th 230 at the CERN n_TOF facility

Author

Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Michalopoulou, Veatriki, Stamatopoulos, A., Diakaki, Maria, Tsinganis, Andrea, Vlastou, Roza, Kokkoris, M., Patronis, N., Eleme, Zinovia, Macina, Daniela, Tassan Got, Laurence, Colonna, Nicola, Chiaveri, E., Ventura, Alberto, Calviño Tavares, Francisco, Casanovas Hoste, Adrià, Cortés Rossell, Guillem Pere, Tarifeño Saldivia, Ariel Esteban, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Michalopoulou, Veatriki, Stamatopoulos, A., Diakaki, Maria, Tsinganis, Andrea, Vlastou, Roza, Kokkoris, M., Patronis, N., Eleme, Zinovia, Macina, Daniela, Tassan Got, Laurence, Colonna, Nicola, Chiaveri, E., Ventura, Alberto, Calviño Tavares, Francisco, Casanovas Hoste, Adrià, Cortés Rossell, Guillem Pere, and Tarifeño Saldivia, Ariel Esteban

Abstract

The neutron-induced fission cross section of 230 Th has been measured at the neutron time-of-flight facility n_TOF located at CERN. The experiment was performed at the experimental area EAR-1 with a neutron flight path of 185 m, using Micromegas detectors for the detection of the fission fragments. The 230 Th(n, f ) cross section was determined relative to the 235 U(n, f ) one, covering the energy range from the fission threshold up to 400 MeV. The results from the present work are compared with existing cross-section datasets and the observed discrepancies are discussed and analyzed. Finally, using the code EMPIRE 3.2.3 a theoretical study, based on the statistical model, was performed leading to a satisfactory reproduction of the experimental results with the proper tuning of the respective parameters, while for incident neutron energy beyond 200 MeV the fission of 230 Th was described by Monte Carlo simulations., This project received funding from the Euratom “Support safe operation of nuclear systems” program 2014–2018 under Grant Agreement No. 847552 (SANDA) and by the funding agencies of the participating institutes. This research is imple- mented through the IKY scholarships program and cofinanced by the European Union (European Social Fund ’ESF) and Greek national funds through the action entitled “Reinforce- ment of Postdoctoral Researchers - 2nd call (MIS 5033021)”, in the framework of the Operational Programme “Human Resources Development Program, Education and Lifelong Learning” of the National Strategic Reference Framework., Article signat per 137 autors/es: V. Michalopoulou, A. Stamatopoulos, M. Diakaki, A. Tsinganis, R. Vlastou, M. Kokkoris, N. Patronis, Z. Eleme, D. Macina, L. Tassan-Got, N. Colonna, E. Chiaveri, A. Ventura, P. Schillebeeckx, J. Heyse, G. Sibbens, G. Alaerts, A. Borella, A. Moens, D. Vanleeuw, 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, F. Calviño, M. Calviani, D. Cano-Ott, A. Casanovas, F. Cerutti, G. Cortés, M. A. Cortés-Giraldo, L. Cosentino, S. Cristallo, L. A. Damone, P. J. Davies, M. Dietz, C. Domingo-Pardo, R. Dressler, Q. Ducasse, E. Dupont, I. Durán, B. Fernández-Domínguez, A. Ferrari, P. Finocchiaro, V. Furman, K. Göbel, R. Garg, A. Gawlik-Ramiega, S. Gilardoni, I. F. Gonçalves, E. González-Romero, C. Guerrero, F. Gunsing, H. Harada, S. Heinitz, D. G. Jenkins, A. Junghans, F. Käppeler, Y. Kadi, A. Kimura, I. Knapová, Y. Kopatch, M. Krticka, D. Kurtulgil, I. Ladarescu, C. Lederer-Woods, H. Leeb, J. Lerendegui-Marco, S. J. Lonsdale, A. Manna, T. Martínez, A. Masi, C. Massimi, P. Mastinu, M. Mastromarco, E. A. Maugeri, A. Mazzone, E. Mendoza, A. Mengoni, P. M. Milazzo, F. Mingrone, J. Moreno-Soto, A. Musumarra, A. Negret, R. Nolte, F. Ogállar, A. Oprea, A. Pavlik, J. Perkowski, C. Petrone, L. Piersanti, E. Pirovano, I. Porras, J. Praena, J. M. Quesada, D. Ramos-Doval, T. Rauscher, R. Reifarth, D. Rochman, Y. Romanets, C. Rubbia, M. Sabaté-Gilarte, A. Saxena, D. Schumann, A. Sekhar, A. G. Smith, N. V. Sosnin, P. Sprung, G. Tagliente, J. L. Tain, A. Tarifeño-Saldivia, Th. Thomas, P. Torres-Sánchez, J. Ulrich, S. Urlass, S. Valenta, G. Vannini, V. Variale, P. Vaz, D. Vescovi, V. Vlachoudis, A. Wallner, P. J. Woods, T. Wright, and P. Žugec., Postprint (published version)

Published
2023

17. Measurement of the <math><mrow><mmultiscripts><mi mathvariant='normal'>N</mi><mprescripts/><none/><mn>14</mn></mmultiscripts><mo>(</mo><mi>n</mi><mo>,</mo><mi>p</mi><mo>)</mo><mmultiscripts><mi mathvariant='normal'>C</mi><mprescripts/><none/><mn>14</mn></mmultiscripts></mrow></math> cross section at the CERN n_TOF facility from subthermal energy to 800 keV

Author

Torres-Sánchez, Pablo, Praena, Javier, Porras, Ignacio, Sabaté-Gilarte, Marta, Lederer-Woods, Claudia, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Babiano-Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bečvář, František, Bellia, Giorgio, Berthoumieux, Eric, Billowes, Jon, Bosnar, Damir, Brown, Adam, Busso, Maurizio, Caamaño, Manuel, Caballero, Luis, Calviño, Francisco, Calviani, Marco, Cano-Ott, Daniel, Casanovas, Adria, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés, Guillem, Cortés-Giraldo, Miguel, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia-Anna, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández-Domínguez, Beatriz, Ferrari, Alfredo, Ferrer, Francisco Javier, Finocchiaro, Paolo, Furman, Valter, Göbel, Kathrin, Garg, Ruchi, Gawlik-Ramięga, Aleksandra, Geslot, Benoit, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel, González-Romero, Enrique, Guerrero, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Kimura, Atsushi, Kivel, Niko, Kokkoris, Michael, Kopatch, Yury, Krtička, Milan, Kurtulgil, Deniz, Ladarescu, Ion, Leeb, Helmut, Lerendegui-Marco, Jorge, Meo, Sergio Lo, Lonsdale, Sarah-Jane, Macina, Daniela, Manna, Alice, Martínez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio-Andrea, Mazzone, Annamaria, Mendoza, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Mingrone, Federica, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Ogállar, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Persanti, Luciano, Quesada, José-Manuel, Radeck, Désirée, Ramos-Doval, Diego, Rauscher, Thomas, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Smith, Gavin, Sosnin, Nikolay, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Tain, José, Talip, Zeynep, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Tsinganis, Andrea, Ulrich, Jiri, Urlass, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias, Žugec, Petar, 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, CEA Cadarache, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and n_TOF

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; Background: The N14(n,p)C14 reaction is of interest in neutron capture therapy, where nitrogen-related dose is the main component due to low-energy neutrons, and in astrophysics, where N14 acts as a neutron poison in the s process. Several discrepancies remain between the existing data obtained in partial energy ranges: thermal energy, keV region, and resonance region.Purpose: We aim to measure the N14(n,p)C14 cross section from thermal to the resonance region in a single measurement for the first time, including characterization of the first resonances, and provide calculations of Maxwellian averaged cross sections (MACS).Method: We apply the time-of-flight technique at Experimental Area 2 (EAR-2) of the neutron time-of-flight (n_TOF) facility at CERN. B10(n,α)Li7 and U235(n,f) reactions are used as references. Two detection systems are run simultaneously, one on beam and another off beam. Resonances are described with the R-matrix code sammy.Results: The cross section was measured from subthermal energy to 800 keV, resolving the first two resonances (at 492.7 and 644 keV). A thermal cross section was obtained (1.809±0.045 b) that is lower than the two most recent measurements by slightly more than one standard deviation, but in line with the ENDF/B-VIII.0 and JEFF-3.3 evaluations. A 1/v energy dependence of the cross section was confirmed up to tens of keV neutron energy. The low energy tail of the first resonance at 492.7 keV is lower than suggested by evaluated values, while the overall resonance strength agrees with evaluations.Conclusions: Our measurement has allowed determination of the N14(n,p) cross section over a wide energy range for the first time. We have obtained cross sections with high accuracy (2.5%) from subthermal energy to 800 keV and used these data to calculate the MACS for kT=5 to kT=100 keV.

Published
2023
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18. PandaX-III: Searching for neutrinoless double beta decay with high pressure 136Xe gas time projection chambers

Author

Chen, Xun, Fu, ChangBo, Galan, Javier, Giboni, Karl, Giuliani, Franco, Gu, LingHui, Han, Ke, Ji, XiangDong, Lin, Heng, Liu, JiangLai, Ni, KaiXiang, Kusano, Hiroki, Ren, XiangXiang, Wang, ShaoBo, Yang, Yong, Zhang, Dan, Zhang, Tao, Zhao, Li, Sun, XiangMing, Hu, ShouYang, Jian, SiYu, Li, XingLong, Li, XiaoMei, Liang, Hao, Zhang, HuanQiao, Zhao, MingRui, Zhou, Jing, Mao, YaJun, Qiao, Hao, Wang, SiGuang, Yuan, Ying, Wang, Meng, Khan, Amir N., Raper, Neill, Tang, Jian, Wang, Wei, Dong, JiaNing, Feng, ChangQing, Li, Cheng, Liu, JianBei, Liu, ShuBin, Wang, XiaoLian, Zhu, DanYang, Castel, Juan F., Cebrián, Susana, Dafni, Theopisti, Garza, Javier G., Irastorza, Igor G., Iguaz, Francisco J., Luzón, Gloria, Mirallas, Hector, Aune, Stephan, Berthoumieux, Eric, Bedfer, Yann, Calvet, Denis, d’Hose, Nicole, Delbart, Alain, Diakaki, Maria, Ferrer-Ribas, Esther, Ferrero, Andrea, Kunne, Fabienne, Neyret, Damien, Papaevangelou, Thomas, Sabatié, Franck, Vanderbroucke, Maxence, Tan, AnDi, Haxton, Wick, Mei, Yuan, Kobdaj, Chinorat, and Yan, Yu-Peng

Published
2017
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19. Measurement of the 235U(n,f) cross section relative to the 10B(n,α) reaction with Micromegas detectors at the CERN n_TOF facility: First results.

Author

Michalopoulou, Veatriki, Diakaki, Maria, Vlastou, Rosa, Kokkoris, Michael, Stamatopoulos, Athanasios, Tsinganis, Andrea, Eleme, Zinovia, Patronis, Nikolas, Heyse, Jan, Schillebeeckx, Peter, Tassan-Got, Laurent, Barbagallo, Massimo, Colonna, Nicola, Urlass, Sebastian, Macina, Daniela, Chiaveri, Enrico, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, and Andrzejewski, Józef

Subjects
*NUCLEAR cross sections, *GAS detectors, *NUCLEAR reactions, *NEUTRON measurement, *NUCLEAR energy
Abstract

Neutron cross section measurements are often made relative to a neutron cross section standard. Thus, the accuracy of the neutron standards determines the best possible accuracy of the neutron measurements. The 235U(n,f) cross section is widely used as reference, while it is considered a standard at thermal point and between 0.15 to 200 MeV. For this reason, additional cross section data for the 235U(n,f) reaction are useful in order to improve the accuracy and to extend the energy range of the standard. In this work, preliminary results of the measurement of the 235U(n,f) cross-section relative to the standard 10B(n,a) reaction are presented. The high accuracy measurement was performed at the experimental area EAR-1 of the n_TOF facility at CERN, aiming at covering the energy range from the thermal region up to approximately 100 keV. The samples were produced at JRC-Geel in Belgium, while the experimental setup was based on Micromegas detectors. [ABSTRACT FROM AUTHOR]

Published
2023
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20. Re-examining intermediate resonant structures in the 242Pu fission cross section.

Author

Chatel, Carole, Bouland, Olivier, Noguère, Gilles, Diakaki, Maria, and Mathieu, Ludovic

Subjects
NUCLEAR fission, PLUTONIUM isotopes, NUCLEAR structure, PRESSURIZED water reactors, NUCLEAR cross sections
Abstract

The study of the 242Pu fission cross section has become more important since this isotope is present in Pressurized Water Reactor Uranium Oxide and Mixed Oxide fuel, as well as in fast neutron reactors fuel. This nucleus has been also selected for monitoring the high neutron flux RJH reactor (CEA-Cadarache). For all these reasons, the fission cross section structure of this fertile isotope, and especially its class-II states resonances were investigated in this work. Two class-II states have been identified in the Resolved Resonance Range (RRR) and their parameters have been supplied to the CONRAD code. 68 class- II states have been identified in the Unresolved Resonant Range (URR) and their parameters have been added in the TALYS code data library to reproduce as well as possible the experimental fission cross section. The methodology to identify and insert the class-II states in RRR and URR is described here. [ABSTRACT FROM AUTHOR]

Published
2023
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24. NEAR: A New Station to Study Neutron-Induced Reactions of Astrophysical Interest at CERN-n_TOF

Author

Gervino, Gianpiero, primary, Aberle, Oliver, additional, Bernardes, Ana-Paula, additional, Colonna, Nicola, additional, Cristallo, Sergio, additional, Diakaki, Maria, additional, Fiore, Salvatore, additional, Manna, Alice, additional, Massimi, Cristian, additional, Mastinu, Pierfrancesco, additional, Mengoni, Alberto, additional, Mucciola, Riccardo, additional, Musacchio González, Elizabeth, additional, Patronis, Nikolas, additional, Stamati, Elisso, additional, Vaz, Pedro, additional, and Vlastou, Rosa, additional

Published
2022
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26. Measurement of the $^{14}$N(n,p)$^{14}$C cross section at the CERN n_TOF facility from sub-thermal energy to 800 keV

Author

Torres-Sánchez, Pablo, Praena, Javier, Porras, Ignacio, Sabaté-Gilarte, Marta, Lederer-Woods, Claudia, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Babiano-Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bečvář, František, Bellia, Giorgio, Berthoumieux, Eric, Billowes, Jon, Bosnar, Damir, Brown, Adam, Busso, Maurizio, Caamaño, Manuel, Caballero, Luis, Calviño, Francisco, Calviani, Marco, Cano-Ott, Daniel, Casanovas, Adria, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés, Guillem, Cortés-Giraldo, Miguel, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia-Anna, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández-Domínguez, Beatriz, Ferrari, Alfredo, Ferrer, Francisco Javier, Finocchiaro, Paolo, Furman, Valter, Göbel, Kathrin, Garg, Ruchi, Gawlik-Ramięga, Aleksandra, Geslot, Benoit, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel, González-Romero, Enrique, Guerrero, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Kimura, Atsushi, Kivel, Niko, Kokkoris, Michael, Kopatch, Yury, Krtička, Milan, Kurtulgil, Deniz, Ladarescu, Ion, Leeb, Helmut, Lerendegui-Marco, Jorge, Meo, Sergio Lo, Lonsdale, Sarah-Jane, Macina, Daniela, Manna, Alice, Martínez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio-Andrea, Mazzone, Annamaria, Mendoza, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Mingrone, Federica, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Ogállar, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Persanti, Luciano, Quesada, José-Manuel, Radeck, Désirée, Ramos-Doval, Diego, Rauscher, Thomas, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Smith, Gavin, Sosnin, Nikolay, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Tain, José, Talip, Zeynep, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Tsinganis, Andrea, Ulrich, Jiri, Urlass, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, PhilipJohn, Woods, Philip John, Wright, Tobias, Žugec, Petar, 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, CEA Cadarache, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), n_TOF, European Project: 677497,H2020,ERC-2015-STG,DoRES(2016), HEP, INSPIRE, and Direct measurements of key nuclear Reactions for the creation of Elements in Stars - DoRES - - H20202016-06-01 - 2021-05-31 - 677497 - VALID

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], FOS: Physical sciences, Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), nucl-ex, Nuclear Experiment
Abstract

Background: The $^{14}$N(n,p)$^{14}$C reaction is of interest in neutron capture therapy, where nitrogen-related dose is the main component due to low-energy neutrons, and in astrophysics, where 14N acts as a neutron poison in the s-process. Several discrepancies remain between the existing data obtained in partial energy ranges: thermal energy, keV region and resonance region. Purpose: Measuring the 14N(n,p)14C cross section from thermal to the resonance region in a single measurement for the first time, including characterization of the first resonances, and providing calculations of Maxwellian averaged cross sections (MACS). Method: Time-of-flight technique. Experimental Area 2 (EAR-2) of the neutron time-of-flight (n_TOF) facility at CERN. $^{10}$B(n,${\alpha}$)$^7$Li and $^{235}$U(n,f) reactions as references. Two detection systems running simultaneously, one on-beam and another off-beam. Description of the resonances with the R-matrix code sammy. Results: The cross section has been measured from sub-thermal energy to 800 keV resolving the two first resonances (at 492.7 and 644 keV). A thermal cross-section (1.809$\pm$0.045 b) lower than the two most recent measurements by slightly more than one standard deviation, but in line with the ENDF/B-VIII.0 and JEFF-3.3 evaluations has been obtained. A 1/v energy dependence of the cross section has been confirmed up to tens of keV neutron energy. The low energy tail of the first resonance at 492.7 keV is lower than suggested by evaluated values, while the overall resonance strength agrees with evaluations. Conclusions: Our measurement has allowed to determine the $^{14}$N(n,p) cross-section over a wide energy range for the first time. We have obtained cross-sections with high accuracy (2.5 %) from sub-thermal energy to 800 keV and used these data to calculate the MACS for kT = 5 to kT = 100 keV., Comment: 18 pages, 15 figures, 4 tables

Published
2022
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27. Destruction of the cosmic γ-ray emitter 26Al in massive stars: study of the key 26Al(n,p) reaction

Author

Lederer-Woods, Claudia, Woods, Philip John, Davinson, Thomas, Kahl, David, Lonsdale, Sarah Jane, Aberle, Oliver, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Bacak, Michael, Balibrea-Correa, Javier, Barbagallo, Massimo, Bečvář, František, Berthoumieux, Eric, Billowes, Jon, Bosnar, Damir, Brown, Adam, Caamaño, Manuel, Calviño, Francisco, Calviani, Marco, Cano-Ott, Daniel, Cardella, Roberto, Casanovas, Adria, Cerutti, Francesco, Chen, Y. H., Chiaveri, Enrico, Colonna, Nicola, Cortés, Guillem, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Diakaki, Maria, Domingo-Pardo, Cesar, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández-Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Paulo, Ferrer, Francesc J., Finocchiaro, Paolo, Furman, Valter, Göbel, Kathrin, García, Aczel Regino, Gawlik, Aleksandra, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel F., González-Romero, Enrique, Griesmayer, Erich, Guerrero, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Heyse, Jan, Jenkins, David G., Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Kalamara, Antigoni, Kavrigin, Pavel, Kimura, Atsushi, Kivel, Nikolai, Kokkoris, Michael, Krtička, Milan, Kurtulgil, Deniz, Leal-Cidoncha, E., Leeb, Helmut, Lerendegui-Marco, Jorge, Lo Meo, Sergio, Macina, Daniela, Manna, Alice, Marganiec, Justyna, Martínez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio-Andrea, Mazzone, Annamaria, Mendoza, Emilio, Mengoni, Alberto, Milazzo, Paolo M., Mingrone, Federica, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Porras, Ignacio, Praena, Javier, Quesada, José-Manuel, Radeck, Desiree, Rauscher, Thomas, Reifarth, René, Rubbia, Carlo, Ryan, James A., Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair G., Sosnin, Nikolay V., Stamatopoulos, Athanasios, Tagliente, Giuseppe, Tain, José L., Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Warren, Stuart, Weß, Christina, Wright, Tobias, Žugec, Petar, and n_TOF Collaboration

Subjects
ddc:530
Abstract

The 26Al(n,p)26Mg reaction is the key reaction impacting on the abundances of the cosmic γ-ray emitter 26Al produced in massive stars and impacts on the potential pollution of the early solar system with 26Al by asymptotic giant branch stars. We performed a measurement of the 26Al(n,p)26Mg cross section at the high-flux beam line EAR-2 at the n_TOF facility (CERN). We report resonance strengths for eleven resonances, nine being measured for the first time, while there is only one previous measurement for the other two. Our resonance strengths are significantly lower than the only previous values available. Our cross-section data range to 150 keV neutron energy, which is sufficient for a reliable determination of astrophysical reactivities up to 0.5 GK stellar temperature.

Published
2021

28. First results of the 140Ce(n,γ)141Ce cross-section measurement at n_TOF

Author

n_TOF Collaboration, Amaducci, Simone, Colonna, Nicola, Cosentino, Luigi, Cristallo, Sergio, Finocchiaro, Paolo, Krtička, Milan, Massimi, Cristian, Mastromarco, Mario, Mazzone, Annamaria, Mengoni, Alberto, Valenta, Stanislav, Aberle, Oliver, Alcayne, Victor, Andrzejewski, Józef, Audouin, Laurent, Babiano-Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bennett, Samuel, Berthoumieux, Eric, Billowes, Jon, Bosnar, Damir, Brown, Adam, Busso, Maurizio, Caamaño, Manuel, Caballero-Ontanaya, Luis, Calviño, Francisco, Calviani, Marco, Cano-Ott, Daniel, Casanovas, Adria, Cerutti, Francesco, Chiaveri, Enrico, Cortés, Guillem, Cortés-Giraldo, Miguel, Damone, Lucia-Anna, Davies, Paul-John, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, Cesar, Dressler, Rugard, Ducasse, Quentin, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández-Domínguez, Beatriz, Ferrari, Alfredo, Furman, Valter, Göbel, Kathrin, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Gonçalves, Isabel, González-Romero, Enrique, Guerrero, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Junghans, Arnd, Käppeler, Franz, Kadi, Yacine, Kimura, Atsushi, Knapova, Ingrid, Kokkoris, Michael, Kopatch, Yuri, Kurtulgil, Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Leeb, Helmut, Lerendegui-Marco, Jorge, Lonsdale, Sarah-Jane, Macina, Daniela, Manna, Alice, Martínez, Trinitario, Masi, Alessandro, Mastinu, Pierfrancesco, Maugeri, Emilio-Andrea, Mendoza, Emilio, Michalopoulou, Veatriki, Milazzo, Paolo, Mingrone, Federica, Moreno-Soto, Javier, Musumarra, Agatino, Negret, Alexandru, Ogállar, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Piersanti, Luciano, Petrone, Cristina, Pirovano, Elisa, Porras, Ignacio, Praena, Javier, Quesada, José-Manuel, Ramos-Doval, Diego, Rauscher, Thomas, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sekhar, Adhitya, Smith, Gavin, Sosnin, Nikolay, Sprung, Peter, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Tain, José, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Thomas, Benedikt, Torres-Sánchez, Pablo, Tsinganis, Andrea, Ulrich, Jiri, Urlass, Sebastian, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, PhilipJohn, Wright, Tobias, Žugec, Petar, n_TOF Collaboration, Universidade de Santiago de Compostela. Departamento de Física de Partículas, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, 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), 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, ITA, FRA, DEU, ESP, GRC, Amaducci S., Colonna N., Cosentino L., Cristallo S., Finocchiaro P., Krticka M., Massimi C., Mastromarco M., Mazzone A., Mengoni A., Valenta S., Aberle O., Alcayne V., Andrzejewski J., Audouin L., Babiano-Suarez V., Bacak M., Barbagallo M., Bennett S., Berthoumieux E., Billowes J., Bosnar D., Brown A., Busso M., Caamano M., Caballero-Ontanaya L., Calvino F., Calviani M., Cano-Ott D., Casanovas A., Cerutti F., Chiaveri E., Cortes G., Cortes-Giraldo M., Damone L.-A., Davies P.-J., Diakaki M., Dietz M., Domingo-Pardo C., Dressler R., Ducasse Q., Dupont E., Duran I., Eleme Z., Fernandez-Dominguez B., Ferrari A., Furman V., Gobel K., Garg R., Gawlik A., Gilardoni S., Goncalves I., Gonzalez-Romero E., Guerrero C., Gunsing F., Harada H., Heinitz S., Heyse J., Jenkins D., Junghans A., Kappeler F., Kadi Y., Kimura A., Knapova I., Kokkoris M., Kopatch Y., Kurtulgil D., Ladarescu I., Lederer-Woods C., Leeb H., Lerendegui-Marco J., Lonsdale S.-J., Macina D., Manna A., Martinez T., Masi A., Mastinu P., Maugeri E.-A., Mendoza E., Michalopoulou V., Milazzo P., Mingrone F., Moreno-Soto J., Musumarra A., Negret A., Ogallar F., Oprea A., Patronis N., Pavlik A., Perkowski J., Piersanti L., Petrone C., Pirovano E., Porras I., Praena J., Quesada J.-M., Ramos-Doval D., Rauscher T., Reifarth R., Rochman D., Rubbia C., Sabate-Gilarte M., Saxena A., Schillebeeckx P., Schumann D., Sekhar A., Smith G., Sosnin N., Sprung P., Stamatopoulos A., Tagliente G., Tain J., Tarifeno-Saldivia A., Tassan-Got L., Thomas B., Torres-Sanchez P., Tsinganis A., Ulrich J., Urlass S., Vannini G., Variale V., Vaz P., Ventura A., Vescovi D., Vlachoudis V., Vlastou R., Wallner A., Woods P.J., Wright T., Zugec P., and 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)

Subjects
cross-section, Cerium oxide, Capture, General Physics and Astronomy, QC793-793.5, 7. Clean energy, 01 natural sciences, Ce, chemistry.chemical_compound, neutron, $^{140}$Ce, n_TOF, 010303 astronomy & astrophysics, Physics, Deuterated benzene, Elementary particle physics, nucleosynthesis, Cerium, cerium, Cosmic electrodynamics, Atomic physics, Nucleosynthesis, neutron capture, Cross-section, chemistry.chemical_element, Neutron, Scintillator, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 0103 physical sciences, Nuclear Physics - Experiment, ddc:530, 010306 general physics, capture, Nucleosynthesi, Ones electromagnètiques, Física [Àrees temàtiques de la UPC], Electromagnetic waves, Nuclear data, 140Ce, TheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGES, chemistry, 13. Climate action, s-process, MACS, Electrodinàmica còsmica
Abstract

The cerium oxide material for this measurement was provided by T. Katabuchi of the Tokyo Institute of Technology., An accurate measurement of the 140Ce(n,g) energy-dependent cross-section was performed at the n_TOF facility at CERN. This cross-section is of great importance because it represents a bottleneck for the s-process nucleosynthesis and determines to a large extent the cerium abundance in stars. The measurement was motivated by the significant difference between the cerium abundance measured in globular clusters and the value predicted by theoretical stellar models. This discrepancy can be ascribed to an overestimation of the 140Ce capture cross-section due to a lack of accurate nuclear data. For this measurement, we used a sample of cerium oxide enriched in 140Ce to 99.4%. The experimental apparatus consisted of four deuterated benzene liquid scintillator detectors, which allowed us to overcome the difficulties present in the previous measurements, thanks to their very low neutron sensitivity. The accurate analysis of the p-wave resonances and the calculation of their average parameters are fundamental to improve the evaluation of the 140Ce Maxwellian-averaged cross-section.

Published
2021
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30. First Results of the 140Ce(n,γ)141Ce Cross-Section Measurement at n_TOF

Author

Amaducci, Simone, primary, Colonna, Nicola, additional, Cosentino, Luigi, additional, Cristallo, Sergio, additional, Finocchiaro, Paolo, additional, Krtička, Milan, additional, Massimi, Cristian, additional, Mastromarco, Mario, additional, Mazzone, Annamaria, additional, Mengoni, Alberto, additional, Valenta, Stanislav, additional, Aberle, Oliver, additional, Alcayne, Victor, additional, Andrzejewski, Józef, additional, Audouin, Laurent, additional, Babiano-Suarez, Victor, additional, Bacak, Michael, additional, Barbagallo, Massimo, additional, Bennett, Samuel, additional, Berthoumieux, Eric, additional, Billowes, Jon, additional, Bosnar, Damir, additional, Brown, Adam, additional, Busso, Maurizio, additional, Caamaño, Manuel, additional, Caballero-Ontanaya, Luis, additional, Calviño, Francisco, additional, Calviani, Marco, additional, Cano-Ott, Daniel, additional, Casanovas, Adria, additional, Cerutti, Francesco, additional, Chiaveri, Enrico, additional, Cortés, Guillem, additional, Cortés-Giraldo, Miguel, additional, Damone, Lucia-Anna, additional, Davies, Paul-John, additional, Diakaki, Maria, additional, Dietz, Mirco, additional, Domingo-Pardo, Cesar, additional, Dressler, Rugard, additional, Ducasse, Quentin, additional, Dupont, Emmeric, additional, Durán, Ignacio, additional, Eleme, Zinovia, additional, Fernández-Domínguez, Beatriz, additional, Ferrari, Alfredo, additional, Furman, Valter, additional, Göbel, Kathrin, additional, Garg, Ruchi, additional, Gawlik, Aleksandra, additional, Gilardoni, Simone, additional, Gonçalves, Isabel, additional, González-Romero, Enrique, additional, Guerrero, Carlos, additional, Gunsing, Frank, additional, Harada, Hideo, additional, Heinitz, Stephan, additional, Heyse, Jan, additional, Jenkins, David, additional, Junghans, Arnd, additional, Käppeler, Franz, additional, Kadi, Yacine, additional, Kimura, Atsushi, additional, Knapova, Ingrid, additional, Kokkoris, Michael, additional, Kopatch, Yuri, additional, Kurtulgil, Deniz, additional, Ladarescu, Ion, additional, Lederer-Woods, Claudia, additional, Leeb, Helmut, additional, Lerendegui-Marco, Jorge, additional, Lonsdale, Sarah-Jane, additional, Macina, Daniela, additional, Manna, Alice, additional, Martínez, Trinitario, additional, Masi, Alessandro, additional, Mastinu, Pierfrancesco, additional, Maugeri, Emilio-Andrea, additional, Mendoza, Emilio, additional, Michalopoulou, Veatriki, additional, Milazzo, Paolo, additional, Mingrone, Federica, additional, Moreno-Soto, Javier, additional, Musumarra, Agatino, additional, Negret, Alexandru, additional, Ogállar, Francisco, additional, Oprea, Andreea, additional, Patronis, Nikolas, additional, Pavlik, Andreas, additional, Perkowski, Jarosław, additional, Piersanti, Luciano, additional, Petrone, Cristina, additional, Pirovano, Elisa, additional, Porras, Ignacio, additional, Praena, Javier, additional, Quesada, José-Manuel, additional, Ramos-Doval, Diego, additional, Rauscher, Thomas, additional, Reifarth, René, additional, Rochman, Dimitri, additional, Rubbia, Carlo, additional, Sabaté-Gilarte, Marta, additional, Saxena, Alok, additional, Schillebeeckx, Peter, additional, Schumann, Dorothea, additional, Sekhar, Adhitya, additional, Smith, Gavin, additional, Sosnin, Nikolay, additional, Sprung, Peter, additional, Stamatopoulos, Athanasios, additional, Tagliente, Giuseppe, additional, Tain, José, additional, Tarifeño-Saldivia, Ariel, additional, Tassan-Got, Laurent, additional, Thomas, Benedikt, additional, Torres-Sánchez, Pablo, additional, Tsinganis, Andrea, additional, Ulrich, Jiri, additional, Urlass, Sebastian, additional, Vannini, Gianni, additional, Variale, Vincenzo, additional, Vaz, Pedro, additional, Ventura, Alberto, additional, Vescovi, Diego, additional, Vlachoudis, Vasilis, additional, Vlastou, Rosa, additional, Wallner, Anton, additional, Woods, PhilipJohn, additional, Wright, Tobias, additional, and Žugec, Petar, additional

Published
2021
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31. Measurement of the fission cross-section of $^{243}$Am at EAR-1 and EAR-2 of the CERN n_TOF facility

Author

Patronis, Nikolaos, Eleme, Zinovia, Diakaki, Maria, Tsinganis, Andreas, Vlastou, Rosa, Kokkoris, Michael, Stamati, Maria-Elisso, Michalopoulou, Veatriki, Stamatopoulos, Athanasios, Barbagallo, Massimo, Colonna, Nicola, Heyse, Jan, Mastromarco, Mario, Mengoni, Alberto, Moens, Andre, Noguere, Gilles, Praena, Antonio - Javier, Schillebeeckx, Peter, Sibbens, Goedele, Tassan-Got, Laurent, and Vanleeuw, David

Subjects
Detectors and Experimental Techniques
Published
2020

32. Investigation of the 240Pu (n, f) reaction at the n_TOF/EAR2 facility in the 9 meV–6 MeV range

Author

Stamatopoulos, A., Tsinganis, Andrea, Colonna, Nicola, Vlastou, Roza, Diakaki, Maria, Žugec, Petar, Gunsing, Frank, Sabaté-Gilarte, Marta, Barbagallo, Massimo, Calviño Tavares, Francisco|||0000-0002-7198-4639, Cortés Rossell, Guillem Pere|||0000-0002-3648-5826, Universitat Politècnica de Catalunya. Departament de Física, and Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group

Subjects
Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Nuclear engineering, Enginyeria nuclear, Física::Física de partícules [Àrees temàtiques de la UPC], Nuclear physics, Física nuclear, Nuclear Experiment
Abstract

Background: Nuclear waste management is considered amongst the major challenges in the field of nuclear energy. A possible means of addressing this issue is waste transmutation in advanced nuclear systems, whose operation requires a fast neutron spectrum. In this regard, the accurate knowledge of neutron-induced reaction cross sections of several (minor) actinide isotopes is essential for design optimization and improvement of safety margins of such systems. One such case is 240 Pu , due to its accumulation in spent nuclear fuel of thermal reactors and its usage in fast reactor fuel. The measurement of the 240 Pu ( n , f ) cross section was previously attempted at the CERN n_TOF facility EAR1 measuring station using the time-of-flight technique. Due to the low amount of available material and the given flux at EAR1, the measurement had to last several months to achieve a sufficient statistical accuracy. This long duration led to detector deterioration due to the prolonged exposure to the high a activity of the fission foils, therefore the measurement could not be successfully completed. Purpose: It is aimed to determine whether it is feasible to study neutron-induced fission at n_TOF/EAR2 and provide data on the 240 Pu ( n , f ) reaction in energy regions requested for applications. Methods: The study of the 240 Pu ( n , f ) reaction was made at a new experimental area (EAR2) with a shorter flight path which delivered on average 30 times higher flux at fast neutron energies. This enabled the measurement to be performed much faster, thus limiting the exposure of the detectors to the intrinsic activity of the fission foils. The experimental setup was based on microbulk Micromegas detectors and the time-of-flight data were analyzed with an optimized pulse-shape analysis algorithm. Special attention was dedicated to the estimation of the non-negligible counting loss corrections with the development of a new methodology, and other corrections were estimated via Monte Carlo simulations of the experimental setup. Results: This new measurement of the 240 Pu ( n , f ) cross section yielded data from 9 meV up to 6 MeV incident neutron energy and fission resonance kernels were extracted up to 10 keV . Conclusions: Neutron-induced fission of high activity samples can be successfully studied at the n_TOF/EAR2 facility at CERN covering a wide range of neutron energies, from thermal to a few MeV.

Published
2020

33. Investigation of the 240Pu (n, f) reaction at the n_TOF/EAR2 facility in the 9 meV–6 MeV range

Author

Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Stamatopoulos, A., Tsinganis, Andrea, Colonna, Nicola, Vlastou, Roza, Diakaki, Maria, Žugec, Petar, Gunsing, Frank, Sabaté-Gilarte, Marta, Barbagallo, Massimo, Calviño Tavares, Francisco, Cortés Rossell, Guillem Pere, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Stamatopoulos, A., Tsinganis, Andrea, Colonna, Nicola, Vlastou, Roza, Diakaki, Maria, Žugec, Petar, Gunsing, Frank, Sabaté-Gilarte, Marta, Barbagallo, Massimo, Calviño Tavares, Francisco, and Cortés Rossell, Guillem Pere

Abstract

Background: Nuclear waste management is considered amongst the major challenges in the field of nuclear energy. A possible means of addressing this issue is waste transmutation in advanced nuclear systems, whose operation requires a fast neutron spectrum. In this regard, the accurate knowledge of neutron-induced reaction cross sections of several (minor) actinide isotopes is essential for design optimization and improvement of safety margins of such systems. One such case is 240 Pu , due to its accumulation in spent nuclear fuel of thermal reactors and its usage in fast reactor fuel. The measurement of the 240 Pu ( n , f ) cross section was previously attempted at the CERN n_TOF facility EAR1 measuring station using the time-of-flight technique. Due to the low amount of available material and the given flux at EAR1, the measurement had to last several months to achieve a sufficient statistical accuracy. This long duration led to detector deterioration due to the prolonged exposure to the high a activity of the fission foils, therefore the measurement could not be successfully completed. Purpose: It is aimed to determine whether it is feasible to study neutron-induced fission at n_TOF/EAR2 and provide data on the 240 Pu ( n , f ) reaction in energy regions requested for applications. Methods: The study of the 240 Pu ( n , f ) reaction was made at a new experimental area (EAR2) with a shorter flight path which delivered on average 30 times higher flux at fast neutron energies. This enabled the measurement to be performed much faster, thus limiting the exposure of the detectors to the intrinsic activity of the fission foils. The experimental setup was based on microbulk Micromegas detectors and the time-of-flight data were analyzed with an optimized pulse-shape analysis algorithm. Special attention was dedicated to the estimation of the non-negligible counting loss corrections with the development of a new methodology, and other corrections were estimated via Monte Car, Postprint (published version)

Published
2020

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

Author

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, Michael, Aiche, Mourad, Bélier, Gilbert, Berthoumieux, Eric, Diakaki, Maria, Dupont, Emmeric, Gunsing, Frank, Kopecky, Stefan, Calviño Tavares, Francisco, Casanovas Hoste, Adrià, Cortés Rossell, Guillem Pere, Tarifeño Saldivia, Ariel Esteban, 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, Michael, Aiche, Mourad, Bélier, Gilbert, Berthoumieux, Eric, Diakaki, Maria, Dupont, Emmeric, Gunsing, Frank, Kopecky, Stefan, Calviño Tavares, Francisco, Casanovas Hoste, Adrià, Cortés Rossell, Guillem Pere, and Tarifeño Saldivia, Ariel Esteban

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,gamma) 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., Postprint (published version)

Published
2020

35. Measurement of the energy-differential cross-section of the 12C(n,p)12B and 12C(n,d)11B reactions at the n_TOF facility at CERN

Author

International Conference on Nuclear Data for Science and Technology (2019 : Peking), Barbagallo, Massimo, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Bennett, Samuel, Berthoumieux, Eric, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Casanovas Hoste, Adrià, Cerutti, Francesco, Chiaveri, Enrico, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Davies, Paul John, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Ducasse, Quentin, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Jiri, U., Junghans, Arnd Rudolf, Kadi, Yacine, Käppeler, Franz, Kimura, Atsushi, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lonsdale, Sarah-Jane, Macina, Daniela, Manna, Alice, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Millán Callado, María de los Ángeles, Mingrone, Federica, Moreno-Soto, Javier, Musumarra, Agatino, Negret, Alexandru, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Petrone, Cristina, Piersanti, Luciano, Pirovano, Elisa, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté- Gilarte, M., Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sekhar, Adhitya, Smith, Alastair Gavin, Sosnin, Nikolay V., Sprung, Peter, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Thomas, Benedikt, Torres-Sánchez, Pablo, Tsinganis, Andrea, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., Žugec, Petar, International Conference on Nuclear Data for Science and Technology (2019 : Peking), Barbagallo, Massimo, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Bennett, Samuel, Berthoumieux, Eric, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Casanovas Hoste, Adrià, Cerutti, Francesco, Chiaveri, Enrico, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Davies, Paul John, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Ducasse, Quentin, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Jiri, U., Junghans, Arnd Rudolf, Kadi, Yacine, Käppeler, Franz, Kimura, Atsushi, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lonsdale, Sarah-Jane, Macina, Daniela, Manna, Alice, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Millán Callado, María de los Ángeles, Mingrone, Federica, Moreno-Soto, Javier, Musumarra, Agatino, Negret, Alexandru, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Petrone, Cristina, Piersanti, Luciano, Pirovano, Elisa, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté- Gilarte, M., Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sekhar, Adhitya, Smith, Alastair Gavin, Sosnin, Nikolay V., Sprung, Peter, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Thomas, Benedikt, Torres-Sánchez, Pablo, Tsinganis, Andrea, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., and Žugec, Petar

Abstract

Although the 12C(n,p)12B and 12C(n,d)11B reactions are of interest in several fields of basic and applied Nuclear Physics the present knowledge of these two cross-sections is far from being accurate and reliable, with both evaluations and data showing sizable discrepancies. As part of the challenging n_TOF program on (n,cp) nuclear reactions study, the energy differential cross-sections of the 12C(n,p)12B and 12C(n,d)11 B reactions have been measured at CERN from the reaction thresholds up to 30 MeV neutron energy. Both measurements have been recently performed at the long flight-path (185 m) experimental area of the n_TOF facility at CERN using a pure (99.95%) rigid graphite target and two silicon telescopes. In this paper an overview of the experiment is presented together with a few preliminary results.

Published
2020

36. Measurement of the 244Cm capture cross sections at both CERN n_TOF experimental areas

Author

International Conference on Nuclear Data for Science and Technology (2019 : Peking), Alcayne, Victor, Mendoza Cembranos, Emilio, Cano-Ott, Daniel, Kimura, Atsushi, Aberle, Oliver, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bécares, Vicente, Bečvář, František, Bellia, Giorgio, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Casanovas Hoste, Adrià, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Glodariu, Tudor, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Kadi, Yacine, Käppeler, Franz, Kivel, Nikolay, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lo Meo, Sergio, Lonsdale, Sarah-Jane, Macina, Daniela, Manna, Alice, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Mingrone, Federica, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Piersanti, Luciano, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Smith, Alastair Gavin, Sosnin, Nikolay V., Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Talip, Zeynep, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Torres-Sánchez, Pablo, Tsinganis, Andrea, Ulrich, Jiri, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., Žugec, Petar, International Conference on Nuclear Data for Science and Technology (2019 : Peking), Alcayne, Victor, Mendoza Cembranos, Emilio, Cano-Ott, Daniel, Kimura, Atsushi, Aberle, Oliver, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bécares, Vicente, Bečvář, František, Bellia, Giorgio, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Casanovas Hoste, Adrià, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Glodariu, Tudor, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Kadi, Yacine, Käppeler, Franz, Kivel, Nikolay, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lo Meo, Sergio, Lonsdale, Sarah-Jane, Macina, Daniela, Manna, Alice, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Mingrone, Federica, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Piersanti, Luciano, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Smith, Alastair Gavin, Sosnin, Nikolay V., Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Talip, Zeynep, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Torres-Sánchez, Pablo, Tsinganis, Andrea, Ulrich, Jiri, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., and Žugec, Petar

Abstract

Accurate neutron capture cross section data for minor actinides (MAs) are required to estimate the production and transmutation rates of MAs in light water reactors with a high burnup, critical fast reactors like Gen-IV systems and other innovative reactor systems such as accelerator driven systems (ADS). Capture reactions of 244Cm open the path for the formation of heavier Cm isotopes and of heavier elements such as Bk and Cf. In addition, 244Cm shares nearly 50% of the total actinide decay heat in irradiated reactor fuels with a high burnup, even after three years of cooling. Experimental data for this isotope are very scarce due to the difficulties of providing isotopically enriched samples and because the high intrinsic activity of the samples requires the use of neutron facilities with high instantaneous flux. The only two previous experimental data sets for this neutron capture cross section have been obtained in 1969 using a nuclear explosion and, more recently, at J-PARC in 2010. The neutron capture cross sections have been measured at n_TOF with the same samples that the previous experiments in J-PARC. The samples were measured at n_TOF Experimental Area 2 (EAR-2) with three C6D6 detectors and also in Experimental Area 1 (EAR-1) with the Total Absorption Calorimeter (TAC). Preliminary results assessing the quality and limitations of these new experimental datasets are presented for the experiments in both areas. Preliminary yields of both measurements will be compared with evaluated libraries for the first time.

Published
2020

37. Setup for the measurement of the 235U(n,f) cross section relative to n-p scattering up to 1 GeV

Author

International Conference on Nuclear Data for Science and Technology (2019 : Peking), Manna, Alice, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bennett, Samuel, Berthoumieux, Eric, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Casanovas Hoste, Adrià, Cerutti, Francesco, Chiaveri, Enrico, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Davies, Paul John, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Ducasse, Quentin, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Jiri, U., Junghans, Arnd Rudolf, Kadi, Yacine, Käppeler, Franz, Kimura, Atsushi, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lonsdale, Sarah-Jane, Macina, Daniela, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Millán Callado, María de los Ángeles, Mingrone, Federica, Moreno-Soto, Javier, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Petrone, Cristina, Piersanti, Luciano, Pirovano, Elisa, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sekhar, Adhitya, Smith, Alastair Gavin, Sosnin, Nikolay V., Sprung, Peter, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeno-Saldivia, Ariel, Tassan-Got, Laurent, Thomas, Benedikt, Torres-Sánchez, Pablo, Tsinganis, Andrea, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., Žugec, Petar, International Conference on Nuclear Data for Science and Technology (2019 : Peking), Manna, Alice, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bennett, Samuel, Berthoumieux, Eric, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Casanovas Hoste, Adrià, Cerutti, Francesco, Chiaveri, Enrico, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Davies, Paul John, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Ducasse, Quentin, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Jiri, U., Junghans, Arnd Rudolf, Kadi, Yacine, Käppeler, Franz, Kimura, Atsushi, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lonsdale, Sarah-Jane, Macina, Daniela, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Millán Callado, María de los Ángeles, Mingrone, Federica, Moreno-Soto, Javier, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Petrone, Cristina, Piersanti, Luciano, Pirovano, Elisa, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sekhar, Adhitya, Smith, Alastair Gavin, Sosnin, Nikolay V., Sprung, Peter, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeno-Saldivia, Ariel, Tassan-Got, Laurent, Thomas, Benedikt, Torres-Sánchez, Pablo, Tsinganis, Andrea, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., and Žugec, Petar

Abstract

The neutron induced fission of 235U is extensively used as a reference for neutron fluence measurements in various applications, ranging from the investigation of the biological effectiveness of high energy neutrons, to the measurement of high energy neutron cross sections of relevance for accelerator driven nuclear systems. Despite its widespread use, no data exist on neutron induced fission of 235U above 200 MeV. The neutron facility n_TOF offers the possibility to improve the situation. The measurement of 235U(n,f) relative to the differential n-p scattering cross-section, was carried out in September 2018 with the aim of providing accurate and precise cross section data in the energy range from 10 MeV up to 1 GeV. In such measurements, Recoil Proton Telescopes (RPTs) are used to measure the neutron flux while the fission events are detected and counted with dedicated detectors. In this paper the measurement campaign and the experimental set-up are illustrated.

Published
2020

38. Study of the neutron-induced fission cross section of 237Np at CERN’s n_TOF facility over a wide energy range

Author

International Conference on Nuclear Data for Science and Technology (2019 : Peking), Stamatopoulos, Athanasios, Tsinganis, Andrea, Diakaki, Maria, Colonna, Nicola, Kokkoris, Michael, Vlastou, Rosa, Kalamara, Antigoni, Schillebeeckx, Peter, Tassan-Got, Laurent, Žugec, Petar, Sabaté-Gilarte, Marta, Patronis, Nikolas, Eleme, Zinovia, Heyse, Jan, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bacak, Michael, Balibrea Correa, Javier, Barbagallo, Massimo, Bečvář, František, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam, Caamaño, Manuel, Calviño Tavares, Francisco, Calviani, Marco, Cano-Ott, Daniel, Cardella, Roberto, Casanovas Hoste, Adrià, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Damone, Lucia Anna, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Furman, Valter, Göbel, Kathrin, García Ríos, Aczel Regino, Gawlik, Aleksandra, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Kavrigin, Pavel, Kimura, Atsushi, Kivel, Nikolay, Knapová, Ingrid, Krtička, Milan, Kurtulgil, Cem Deniz, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Lerendegui-Marco, Jorge, Lo Meo, Sergio, Lonsdale, Sarah Jane, Macina, Daniela, Manna, Alice, Marganiec, Justyna, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Oprea, Andreea, Pavlik, Andreas, Perkowski, Jarosław, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Rauscher, Thomas, Reifarth, René, Rubbia, Carlo, Ryan, James A., Saxena, Alok, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Sosnin, Nikolay V., Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Wallner, Anton, Warren, Stephen J., Weiß, Christina, Woods, Philip John, Wright, Tobias, International Conference on Nuclear Data for Science and Technology (2019 : Peking), Stamatopoulos, Athanasios, Tsinganis, Andrea, Diakaki, Maria, Colonna, Nicola, Kokkoris, Michael, Vlastou, Rosa, Kalamara, Antigoni, Schillebeeckx, Peter, Tassan-Got, Laurent, Žugec, Petar, Sabaté-Gilarte, Marta, Patronis, Nikolas, Eleme, Zinovia, Heyse, Jan, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bacak, Michael, Balibrea Correa, Javier, Barbagallo, Massimo, Bečvář, František, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam, Caamaño, Manuel, Calviño Tavares, Francisco, Calviani, Marco, Cano-Ott, Daniel, Cardella, Roberto, Casanovas Hoste, Adrià, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Damone, Lucia Anna, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Furman, Valter, Göbel, Kathrin, García Ríos, Aczel Regino, Gawlik, Aleksandra, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Kavrigin, Pavel, Kimura, Atsushi, Kivel, Nikolay, Knapová, Ingrid, Krtička, Milan, Kurtulgil, Cem Deniz, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Lerendegui-Marco, Jorge, Lo Meo, Sergio, Lonsdale, Sarah Jane, Macina, Daniela, Manna, Alice, Marganiec, Justyna, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Oprea, Andreea, Pavlik, Andreas, Perkowski, Jarosław, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Rauscher, Thomas, Reifarth, René, Rubbia, Carlo, Ryan, James A., Saxena, Alok, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Sosnin, Nikolay V., Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Wallner, Anton, Warren, Stephen J., Weiß, Christina, Woods, Philip John, and Wright, Tobias

Abstract

Neutron-induced fission cross sections of isotopes involved in the nuclear fuel cycle are vital for the design and safe operation of advanced nuclear systems. Such experimental data can also provide additional constraints for the adjustment of nuclear model parameters used in the evaluation process, resulting in the further development of fission models. In the present work, the 237Np(n,f) cross section was studied at the EAR2 vertical beam-line at CERN's n_TOF facility, over a wide range of neutron energies, from meV to MeV, using the time-of-flight technique and a set-up based on Micromegas detectors, in an attempt to provide accurate experimental data. Preliminary results in the 200 keV – 14 MeV neutron energy range as well as the experimental procedure, including a description of the facility and the data handling and analysis, will be presented.

Published
2020

39. Status and perspectives of the neutron time-of-flight facility n_TOF at CERN

Author

International Conference on Nuclear Data for Science and Technology (2019 : Peking), Chiaveri, Enrico, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bennett, Samuel, Berthoumieux, Eric, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Casanovas Hoste, Adrià, Cerutti, Francesco, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Davies, Paul John, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Ducasse, Quentin, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Jiri, U., Junghans, Arnd Rudolf, Kadi, Yacine, Käppeler, Franz, Kimura, Atsushi, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lonsdale, Sarah-Jane, Macina, Daniela, Manna, Alice, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Millán Callado, María de los Ángeles, Mingrone, Federica, Moreno-Soto, Javier, Musumarra, Agatino, Negret, Alexandru, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Petrone, Cristina, Piersanti, Luciano, Pirovano, Elisa, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sekhar, Adhitya, Smith, Alastair Gavin, Sosnin, Nikolay V., Sprung, Peter, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Thomas, Benedikt, Torres-Sánchez, Pablo, Tsinganis, Andrea, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., Žugec, Petar, International Conference on Nuclear Data for Science and Technology (2019 : Peking), Chiaveri, Enrico, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bennett, Samuel, Berthoumieux, Eric, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Casanovas Hoste, Adrià, Cerutti, Francesco, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Davies, Paul John, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Ducasse, Quentin, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Jiri, U., Junghans, Arnd Rudolf, Kadi, Yacine, Käppeler, Franz, Kimura, Atsushi, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lonsdale, Sarah-Jane, Macina, Daniela, Manna, Alice, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Millán Callado, María de los Ángeles, Mingrone, Federica, Moreno-Soto, Javier, Musumarra, Agatino, Negret, Alexandru, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Petrone, Cristina, Piersanti, Luciano, Pirovano, Elisa, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sekhar, Adhitya, Smith, Alastair Gavin, Sosnin, Nikolay V., Sprung, Peter, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Thomas, Benedikt, Torres-Sánchez, Pablo, Tsinganis, Andrea, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., and Žugec, Petar

Abstract

Since the start of its operation in 2001, based on an idea of Prof. Carlo Rubbia [1], the neutron time of-flight facility of CERN, n_TOF, has become one of the most forefront neutron facilities in the world for wide-energy spectrum neutron cross section measurements. Thanks to the combination of excellent neutron energy resolution and high instantaneous neutron flux available in the two experimental areas, the second of which has been constructed in 2014, n_TOF is providing a wealth of new data on neutron-induced reactions of interest for nuclear astrophysics, advanced nuclear technologies and medical applications. The unique features of the facility will continue to be exploited in the future, to perform challenging new measurements addressing the still open issues and long-standing quests in the field of neutron physics. In this document the main characteristics of the n_TOF facility and their relevance for neutron studies in the different areas of research will be outlined, addressing the possible future contribution of n_TOF in the fields of nuclear astrophysics, nuclear technologies and medical applications. In addition, the future perspectives of the facility will be described including the upgrade of the spallation target, the setup of an imaging installation and the construction of a new irradiation area.

Published
2020

40. Fission program at n_TOF

Author

International Workshop on Nuclear Data Evaluation for Reactor Applications (5. : 2018 : Aix-en-Provence), Tassan-Got, Laurent, Colonna, Nicola, Diakaki, Maria, Eleme, Zinovia, Manna, Alice, Sekhar, Adhitya, Stamatopoulos, Athanasios, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bennett, Samuel, Berthoumieux, Eric, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Casanovas Hoste, Adrià, Cerutti, Francesco, Chiaveri, Enrico, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Davies, Paul John, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Ducasse, Quentin, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jiri, U., Junghans, Arnd Rudolf, Kadi, Yacine, Käppeler, Franz, Kimura, Atsushi, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lonsdale, Sarah-Jane, Macina, Daniela, Martinez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Millán Callado, María de los Ángeles, Mingrone, Federica, Moreno-Soto, Javier, Musumarra, Agatino, Negret, Alexandru, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Petrone, Cristina, Piersanti, Luciano, Pirovano, Elisa, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Smith, Alastair Gavin, Sosnin, Nikolay V., Sprung, Peter, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Thomas, Benedikt, Torres-Sánchez, Pablo, Tsinganis, Andrea, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., Žugec, Petar, International Workshop on Nuclear Data Evaluation for Reactor Applications (5. : 2018 : Aix-en-Provence), Tassan-Got, Laurent, Colonna, Nicola, Diakaki, Maria, Eleme, Zinovia, Manna, Alice, Sekhar, Adhitya, Stamatopoulos, Athanasios, Aberle, Oliver, Alcayne, Victor, Amaducci, Simone, Andrzejewski, Józef, Audouin, Laurent, Babiano Suarez, Victor, Bacak, Michael, Barbagallo, Massimo, Bennett, Samuel, Berthoumieux, Eric, Bosnar, Damir, Brown, Adam S., Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Casanovas Hoste, Adrià, Cerutti, Francesco, Chiaveri, Enrico, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Davies, Paul John, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Ducasse, Quentin, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Gonçalves, Isabel Maria Ferro, Finocchiaro, Paolo, Furman, Valter, Garg, Ruchi, Gawlik, Aleksandra, Gilardoni, Simone, Göbel, Kathrin, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jiri, U., Junghans, Arnd Rudolf, Kadi, Yacine, Käppeler, Franz, Kimura, Atsushi, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lonsdale, Sarah-Jane, Macina, Daniela, Martinez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Millán Callado, María de los Ángeles, Mingrone, Federica, Moreno-Soto, Javier, Musumarra, Agatino, Negret, Alexandru, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Petrone, Cristina, Piersanti, Luciano, Pirovano, Elisa, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Ramos Doval, Diego, Reifarth, René, Rochman, Dimitri, Rubbia, Carlo, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Smith, Alastair Gavin, Sosnin, Nikolay V., Sprung, Peter, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Thomas, Benedikt, Torres-Sánchez, Pablo, Tsinganis, Andrea, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias J., and Žugec, Petar

Abstract

Since its start in 2001 the n_TOF collaboration developed a measurement program on fission, in view of advanced fuels in new generation reactors. A special effort was made on measurement of cross sections of actinides, exploiting the peculiarity of the n_TOF neutron beam which spans a huge energy domain, from the thermal region up to GeV. Moreover fission fragment angular distributions have also been measured. An overview of the cross section results achieved with different detectors is presented, including a discussion of the 237Np case where discrepancies showed up between different detector systems. The results on the anisotropy of the fission fragments and its implication on the mechanism of neutron absorption, and in applications, are also shown.

Published
2019

41. Measurement of the 244Cm and 246Cm neutron-induced capture cross sections at the n_TOF facility

Author

International Workshop on Nuclear Data Evaluation for Reactor Applications (5. : 2018 : Aix-en-Provence), Alcayne, Victor, Kimura, Atsushi, Mendoza Cembranos, Emilio, Cano-Ott, Daniel, Martı́nez, Trinitario, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Bacak, Michael, Barbagallo, Massimo, Bečvář, František, Bellia, Giorgio, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam, Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviño Tavares, Francisco, Calviani, Marco, Casanovas Hoste, Adrià, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Finocchiaro, Paolo, Furman, Valter, Göbel, Kathrin, Gawlik, Aleksandra, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Käppeler, Franz, Kadi, Yacine, Katabuchi, Tatsuya, Kivel, Nikolay, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lo Meo, Sergio, Lonsdale, Sarah Jane, Macina, Daniela, Manna, Alice, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Mingrone, Federica, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Piersanti, Luciano, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Ramos Doval, Diego, Rauscher, Thomas, Reifarth, René, Rochman, Dimitri, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Simone, S., Smith, Alastair Gavin, Sosnin, Nikolay V., Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Talip, T., Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Tsinganis, Andrea, Ulrich, Jiri, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias, Žugec, Petar, International Workshop on Nuclear Data Evaluation for Reactor Applications (5. : 2018 : Aix-en-Provence), Alcayne, Victor, Kimura, Atsushi, Mendoza Cembranos, Emilio, Cano-Ott, Daniel, Martı́nez, Trinitario, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Bacak, Michael, Barbagallo, Massimo, Bečvář, František, Bellia, Giorgio, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam, Busso, Maurizio, Caamaño, Manuel, Caballero Ontanaya, Luis, Calviño Tavares, Francisco, Calviani, Marco, Casanovas Hoste, Adrià, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Cristallo, Sergio, Damone, Lucia Anna, Diakaki, Maria, Dietz, Mirco, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Eleme, Zinovia, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Finocchiaro, Paolo, Furman, Valter, Göbel, Kathrin, Gawlik, Aleksandra, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Guerrero Sánchez, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Käppeler, Franz, Kadi, Yacine, Katabuchi, Tatsuya, Kivel, Nikolay, Knapová, Ingrid, Kokkoris, Michael, Kopatch, Yuri N., Krtička, Milan, Kurtulgil, Cem Deniz, Ladarescu, Ion, Lederer-Woods, Claudia, Lerendegui-Marco, Jorge, Lo Meo, Sergio, Lonsdale, Sarah Jane, Macina, Daniela, Manna, Alice, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mengoni, Alberto, Michalopoulou, Veatriki, Milazzo, Paolo Maria, Mingrone, Federica, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Ogállar Ruiz, Francisco, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Piersanti, Luciano, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Ramos Doval, Diego, Rauscher, Thomas, Reifarth, René, Rochman, Dimitri, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Simone, S., Smith, Alastair Gavin, Sosnin, Nikolay V., Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Talip, T., Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Tsinganis, Andrea, Ulrich, Jiri, Urlaß, Sebastian, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vescovi, Diego, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Woods, Philip John, Wright, Tobias, and Žugec, Petar

Abstract

The neutron capture reactions of the 244Cm and 246Cm isotopes open the path for the formation of heavier Cm isotopes and heavier elements such as Bk and Cf in a nuclear reactor. In addition, both isotopes belong to the minor actinides with a large contribution to the decay heat and to the neutron emission in irradiated fuels. There are only two previous 244Cm and 246Cm capture cross section measurements: one in 1969 using a nuclear explosion [1] and the most recent data measured at J-PARC in 2010 [2]. The data for both isotopes are very scarce due to the difficulties in performing the measurements: high intrinsic activity of the samples and limited facilities capable of providing isotopically enriched samples. We have measured both neutron capture cross sections at the n_TOF Experimental Area 2 (EAR-2) with three C6 D6 detectors and also at Area 1 (EAR-1) with the TAC. Preliminary results assessing the quality and limitations (back-ground subtraction, measurement technique and counting statistics) of this new experimental datasets are presented and discussed.

Published
2019

42. Preparation and characterization of 33S samples for 33S(n,)30Si cross-section measurements at the n_TOF facility at CERN

Author

Ministerio de Economía y Competitividad (España), Junta de Andalucía, European Commission, García López, J. [0000-0003-4107-4383], Praena, Javier, Ferrer, F. J., Vollenberg, W., Sabaté-Gilarte, Marta, Fernández-Martínez, Begoña, García López, J., Porras, Ignacio, Quesada, José Manuel, Altstadt, Sebastian, Andrzejewski, Józef, Audouin, Laurent, Fraval, K., Gómez-Hornillos, B., Ganesan, S., García, A.R., Giubrone, G., Katabuchi, T., Karadimos, D., Kadi, Y., Ketlerov, V., Khryachkov, V., Kivel, N., Gonçalves, I.F., González-Romero, E., Goverdovski, A., Griesmayer, E., Guerrero, C., Hernández-Prieto, A., Heyse, J., Jenkins, D. G., Jericha, E., Kappeler, F., Kroll, J., Kokkoris, M., Koehler, P., Krticka, M., Lampoudis, C., Langer, C., Mastromarco, M., Mastinu, Pierfrancesco, Massimi, C., Mendoza, E., Mengoni, A., Milazzo, P. M., Leal-Cidoncha, E., Lederer-Woods, C., Leeb, H., Leong, L. S., Lerendegui-Marco, J., Losito, R., Mallick, A., Manousos, A., Marganiec, J., Martínez, T., Mondelaers, W., Mirea, M., Mingrone, F., Paradela, Cristina, Pavlik, A., Perkowski, J., Sedyshev, P., Schumann, D., Schmidt, S., Tagliente, G., Taín, José Luis, Tarifeño-Saldivia, A., Plompen, A. J. M., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Rubbia, C., Ryan, J. A., Sarmento, R., Saxena, A., Schillebeeckx, P., Tsinganis, A., Tassan-Got, L., Tarrío, D., Valenta, S., Vannini, G., Variale, V., Bécares, Vicente, n_TOF Collaboration, Žugec, P., Barbagallo, M., Becvar, František, Belloni, Francesca, Vaz, P., Ventura, A., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., Boccone, Vittorio, Billowes, Jonathan, Berthoumieux, Eric, Bosnar, Damir, Brugger, Markus, Calviño, F., Calviani, Marco, Durán, Ignacio, Dressler, R., Domingo Pardo, César, Eleftheriadis, C., Ferrari, A., Cano-Ott, Daniel, Carrapiço, C., Cerutti, Francesco, Chiaveri, Enrico, Chin, Mary P.W., Colonna, Nicola, Cortés, Guillem, Cortés-Giraldo, Miguel Antonio, Diakaki, Maria, Dietz, M., Göbel, K., Furman, V., Ministerio de Economía y Competitividad (España), Junta de Andalucía, European Commission, García López, J. [0000-0003-4107-4383], Praena, Javier, Ferrer, F. J., Vollenberg, W., Sabaté-Gilarte, Marta, Fernández-Martínez, Begoña, García López, J., Porras, Ignacio, Quesada, José Manuel, Altstadt, Sebastian, Andrzejewski, Józef, Audouin, Laurent, Fraval, K., Gómez-Hornillos, B., Ganesan, S., García, A.R., Giubrone, G., Katabuchi, T., Karadimos, D., Kadi, Y., Ketlerov, V., Khryachkov, V., Kivel, N., Gonçalves, I.F., González-Romero, E., Goverdovski, A., Griesmayer, E., Guerrero, C., Hernández-Prieto, A., Heyse, J., Jenkins, D. G., Jericha, E., Kappeler, F., Kroll, J., Kokkoris, M., Koehler, P., Krticka, M., Lampoudis, C., Langer, C., Mastromarco, M., Mastinu, Pierfrancesco, Massimi, C., Mendoza, E., Mengoni, A., Milazzo, P. M., Leal-Cidoncha, E., Lederer-Woods, C., Leeb, H., Leong, L. S., Lerendegui-Marco, J., Losito, R., Mallick, A., Manousos, A., Marganiec, J., Martínez, T., Mondelaers, W., Mirea, M., Mingrone, F., Paradela, Cristina, Pavlik, A., Perkowski, J., Sedyshev, P., Schumann, D., Schmidt, S., Tagliente, G., Taín, José Luis, Tarifeño-Saldivia, A., Plompen, A. J. M., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Rubbia, C., Ryan, J. A., Sarmento, R., Saxena, A., Schillebeeckx, P., Tsinganis, A., Tassan-Got, L., Tarrío, D., Valenta, S., Vannini, G., Variale, V., Bécares, Vicente, n_TOF Collaboration, Žugec, P., Barbagallo, M., Becvar, František, Belloni, Francesca, Vaz, P., Ventura, A., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., Boccone, Vittorio, Billowes, Jonathan, Berthoumieux, Eric, Bosnar, Damir, Brugger, Markus, Calviño, F., Calviani, Marco, Durán, Ignacio, Dressler, R., Domingo Pardo, César, Eleftheriadis, C., Ferrari, A., Cano-Ott, Daniel, Carrapiço, C., Cerutti, Francesco, Chiaveri, Enrico, Chin, Mary P.W., Colonna, Nicola, Cortés, Guillem, Cortés-Giraldo, Miguel Antonio, Diakaki, Maria, Dietz, M., Göbel, K., and Furman, V.

Abstract

Thin 33S samples for the study of the 33S(n,)30Si cross-section at the n_TOF facility at CERN were made by thermal evaporation of 33S powder onto a dedicated substrate made of kapton covered with thin layers of copper, chromium and titanium. This method has provided for the first time bare sulfur samples a few centimeters in diameter. The samples have shown an excellent adherence with no mass loss after few years and no sublimation in vacuum at room temperature. The determination of the mass thickness of 33S has been performed by means of Rutherford backscattering spectrometry. The samples have been successfully tested under neutron irradiation.

Published
2018

43. Measurement of the fission cross-section of $^{241}$Am

Author

Tsinganis, Andrea, Diakaki, Maria, Vlastou, Rosa, Kokkoris, Michail, Colonna, Nicola, Heyse, Jan, Patronis, Nikolaos, Tassan-Got, Laurent, Stamatopoulos, Athanasios, and Mastromarco, Mario

Subjects
Detectors and Experimental Techniques
Published
2017

44. The measurement programme at the neutron time-of-flight facility n_TOF at CERN

Author

International Conference on Nuclear Data for Science and Technology (2016 : Bruges), Gunsing, Frank, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Bacak, Michael, Balibrea Correa, Javier, Barbagallo, Massimo, Barros, Susana C.C., Bečvář, František, Beinrucker, Clemens, Belloni, Fabio, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam, Brugger, Markus, Caamaño, Manuel, Calviño Tavares, Francisco, Calviani, Marco, Cano-Ott, Daniel, Cardella, Roberto, Casanovas Hoste, Adrià, Castelluccio, Donato Maurizio, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés-Giraldo, Miguel Antonio, Cortés Rossell, Guillem Pere, Cosentino, Luigi, Damone, Lucia Anna, Deo, Kapil, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Frost, Robert J. W., Furman, Valter, Ganesan, Srinivasan, García Ríos, Aczel Regino, Gawlik, Aleksandra, Gheorghe, Ioana, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Goverdovski, Andrey, Griesmayer, Erich, Guerrero Sánchez, Carlos, Göbel, Kathrin, Harada, Hideo, Heftrich, Tanja, Heinitz, Stephan, Hernández Prieto, Álvaro, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Kalamara, Antigoni, Katabuchi, Tatsuya, Kavrigin, Pavel, Ketlerov, Vladimir, Khryachkov, Vitaly, Kimura, Atsushi, Kivel, Nikolay, Kokkoris, Michael, Krtička, Milan, Kurtulgil, Cem Deniz, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Lerendegui, Jorge, Licata, Mauro, Lo Meo, Sergio, Lonsdale, Sarah Jane, Losito, Roberto, Macina, Daniela, Marganiec, Justyna, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Montesano, Simone, Musumarra, Agatino, Nolte, Ralf, Negret, Alexandru, Oprea, Andreea, Palomo Pinto, Francisco Rogelio, Paradela Dobarro, Carlos, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Rajeev, K., Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Rout, Prakash Chandra, Rubbia, Carlo, Ryan, James, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Sosnin, Nikolay V., Stamatopoulos, Athanasios, Suryanarayana, Saraswatula Venkata, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tarrío Vilas, Diego, Tassan-Got, Laurent, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Warren, Stephen J., Weigand, Mario, Weiß, Christina, Wolf, Clemens, Woods, Philip John, Wright, Tobias, Žugec, Petar, International Conference on Nuclear Data for Science and Technology (2016 : Bruges), Gunsing, Frank, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Bacak, Michael, Balibrea Correa, Javier, Barbagallo, Massimo, Barros, Susana C.C., Bečvář, František, Beinrucker, Clemens, Belloni, Fabio, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam, Brugger, Markus, Caamaño, Manuel, Calviño Tavares, Francisco, Calviani, Marco, Cano-Ott, Daniel, Cardella, Roberto, Casanovas Hoste, Adrià, Castelluccio, Donato Maurizio, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés-Giraldo, Miguel Antonio, Cortés Rossell, Guillem Pere, Cosentino, Luigi, Damone, Lucia Anna, Deo, Kapil, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Frost, Robert J. W., Furman, Valter, Ganesan, Srinivasan, García Ríos, Aczel Regino, Gawlik, Aleksandra, Gheorghe, Ioana, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Goverdovski, Andrey, Griesmayer, Erich, Guerrero Sánchez, Carlos, Göbel, Kathrin, Harada, Hideo, Heftrich, Tanja, Heinitz, Stephan, Hernández Prieto, Álvaro, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Kalamara, Antigoni, Katabuchi, Tatsuya, Kavrigin, Pavel, Ketlerov, Vladimir, Khryachkov, Vitaly, Kimura, Atsushi, Kivel, Nikolay, Kokkoris, Michael, Krtička, Milan, Kurtulgil, Cem Deniz, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Lerendegui, Jorge, Licata, Mauro, Lo Meo, Sergio, Lonsdale, Sarah Jane, Losito, Roberto, Macina, Daniela, Marganiec, Justyna, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Montesano, Simone, Musumarra, Agatino, Nolte, Ralf, Negret, Alexandru, Oprea, Andreea, Palomo Pinto, Francisco Rogelio, Paradela Dobarro, Carlos, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Rajeev, K., Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Rout, Prakash Chandra, Rubbia, Carlo, Ryan, James, Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Sosnin, Nikolay V., Stamatopoulos, Athanasios, Suryanarayana, Saraswatula Venkata, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tarrío Vilas, Diego, Tassan-Got, Laurent, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Warren, Stephen J., Weigand, Mario, Weiß, Christina, Wolf, Clemens, Woods, Philip John, Wright, Tobias, and Žugec, Petar

Abstract

Neutron-induced reaction cross sections are important for a wide variety of research fields ranging from the study of nuclear level densities, nucleosynthesis to applications of nuclear technology like design, and criticality and safety assessment of existing and future nuclear reactors, radiation dosimetry, medical applications, nuclear waste transmutation, accelerator-driven systems and fuel cycle investigations. Simulations and calculations of nuclear technology applications largely rely on evaluated nuclear data libraries. The evaluations in these libraries are based both on experimental data and theoretical models. CERN’s neutron time-of-flight facility n_TOF has produced a considerable amount of experimental data since it has become fully operational with the start of its scientific measurement programme in 2001. While for a long period a single measurement station (EAR1) located at 185 m from the neutron production target was available, the construction of a second beam line at 20 m (EAR2) in 2014 has substantially increased the measurement capabilities of the facility. An outline of the experimental nuclear data activities at n_TOF will be presented.

Published
2017

45. High accuracy 234U(n,f) cross section in the resonance energy region

Author

International Conference on Nuclear Data for Science and Technology (2016 : Bruges), Leal Cidoncha, Esther, Durán, Ignacio, Paradela Dobarro, Carlos, Tassan-Got, Laurent, Audouin, Laurent, Leal, Luiz C., Le Naour, Claire, Noguere, Gilles, Tarrío Vilas, Diego, Leong, Lou Sai, Altstadt, Sebastian, Andrzejewski, Józef, Barbagallo, Massimo, Bécares, Vicente, Bečvář, František, Belloni, Fabio, Berthoumieux, Eric, Billowes, Jonathan, Boccone, Vittorio, Bosnar, Damir, Brugger, Markus, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Carrapiço, Carlos, Cerutti, Francesco, Chiaveri, Enrico, Chin, Michael, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Eleftheriadis, Christos, Ferrari, Alfredo, Fraval, Kevin, Ganesan, Srinivasan, García Ríos, Aczel Regino, Giubrone, Giuseppe, Gómez Hornillos, María Belén, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Gurusamy, Perumal, Hernández Prieto, Álvaro, Jenkins, David, Jericha, Erwin, Kadi, Yacine, Käppeler, Franz, Karadimos, Dimitri, Kivel, Nikolay, Kokkoris, Michael, Krtička, Milan, Kroll, Jiří, Lampoudis, Christos, Langer, Christoph, Lederer, Claudia, Leeb, Helmut, Losito, Roberto, Mallick, Amod Kishore, Manousos, Athanasios, Marganiec, Justyna, Martı́nez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Meaze, AKM Moinul Haque, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Mondelaers, Willy, Pavlik, Andreas, Perkowski, Jarosław, Plompen, Arjan J. M., Praena, Javier, Quesada Molina, José Manuel, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Roman, Faustin Laurenţiu, Rubbia, Carlo, Sabaté-Gilarte, Marta, Sarmento, Raul, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Versaci, Roberto, Vermeulen, Mark J., Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Ware, Timothy, Weigand, Mario, Weiß, Christina, Wright, Tobias, Žugec, Petar, International Conference on Nuclear Data for Science and Technology (2016 : Bruges), Leal Cidoncha, Esther, Durán, Ignacio, Paradela Dobarro, Carlos, Tassan-Got, Laurent, Audouin, Laurent, Leal, Luiz C., Le Naour, Claire, Noguere, Gilles, Tarrío Vilas, Diego, Leong, Lou Sai, Altstadt, Sebastian, Andrzejewski, Józef, Barbagallo, Massimo, Bécares, Vicente, Bečvář, František, Belloni, Fabio, Berthoumieux, Eric, Billowes, Jonathan, Boccone, Vittorio, Bosnar, Damir, Brugger, Markus, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Carrapiço, Carlos, Cerutti, Francesco, Chiaveri, Enrico, Chin, Michael, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Eleftheriadis, Christos, Ferrari, Alfredo, Fraval, Kevin, Ganesan, Srinivasan, García Ríos, Aczel Regino, Giubrone, Giuseppe, Gómez Hornillos, María Belén, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Gurusamy, Perumal, Hernández Prieto, Álvaro, Jenkins, David, Jericha, Erwin, Kadi, Yacine, Käppeler, Franz, Karadimos, Dimitri, Kivel, Nikolay, Kokkoris, Michael, Krtička, Milan, Kroll, Jiří, Lampoudis, Christos, Langer, Christoph, Lederer, Claudia, Leeb, Helmut, Losito, Roberto, Mallick, Amod Kishore, Manousos, Athanasios, Marganiec, Justyna, Martı́nez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Meaze, AKM Moinul Haque, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Mondelaers, Willy, Pavlik, Andreas, Perkowski, Jarosław, Plompen, Arjan J. M., Praena, Javier, Quesada Molina, José Manuel, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Roman, Faustin Laurenţiu, Rubbia, Carlo, Sabaté-Gilarte, Marta, Sarmento, Raul, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Versaci, Roberto, Vermeulen, Mark J., Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Ware, Timothy, Weigand, Mario, Weiß, Christina, Wright, Tobias, and Žugec, Petar

Abstract

New results are presented of the 234U neutron-induced fission cross section, obtained with high accuracy in the resonance region by means of two methods using the 235U(n,f) as reference. The recent evaluation of the 235U(n,f) obtained with SAMMY by L. C. Leal et al. (these Proceedings), based on previous n_TOF data [1], has been used to calculate the 234U(n,f) cross section through the 234U/235U ratio, being here compared with the results obtained by using the n_TOF neutron flux.

Published
2017

46. The Nuclear Astrophysics program at n_TOF (CERN)

Author

Nuclear Physics in Astrophysics (Veranstaltung (8. : 2017 : Catania), Colonna, Nicola, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bacak, Michael, Balibrea Correa, Javier, Barbagallo, Massimo, Bečvář, František, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam, Caamaño, Manuel, Calviño Tavares, Francisco, Calviani, Marco, Cano-Ott, Daniel, Cardella, Roberto, Casanovas Hoste, Adrià, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Clai, Giulia, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Cristallo, Sergio, Damone, Lucia Anna, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Furman, Valter, Göbel, Kathrin, García Ríos, Aczel Regino, Gawlik, Aleksandra, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Hernández Prieto, Álvaro, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Kalamara, Antigoni, Kavrigin, Pavel, Kimura, Atsushi, Kivel, Nikolay, Kokkoris, Michael, Kroll, Jiří, Krtička, Milan, Kurtulgil, Cem Deniz, Langer, Christoph, Leal Cidoncha, Esther, Lederer, Claudia, Lerendegui-Marco, Jorge, Leeb, Helmut, Lo Meo, Sergio, Lonsdale, Sarah Jane, Losito, Roberto, Macina, Daniela, Mallick, Amod Kishore, Marganiec, Justyna, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Mingrone, Federica, Milazzo, Paolo Maria, Mirea, Mihail, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Piersanti, Luciano, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Rubbia, Carlo, Ryan, James A., Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Sosnin, Nikolay V., Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Warren, Stephen J., Weiß, Christina, Woods, Philip John, Wright, Tobias, Žugec, Petar, Nuclear Physics in Astrophysics (Veranstaltung (8. : 2017 : Catania), Colonna, Nicola, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bacak, Michael, Balibrea Correa, Javier, Barbagallo, Massimo, Bečvář, František, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brown, Adam, Caamaño, Manuel, Calviño Tavares, Francisco, Calviani, Marco, Cano-Ott, Daniel, Cardella, Roberto, Casanovas Hoste, Adrià, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Clai, Giulia, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Cristallo, Sergio, Damone, Lucia Anna, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Furman, Valter, Göbel, Kathrin, García Ríos, Aczel Regino, Gawlik, Aleksandra, Gilardoni, Simone, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Harada, Hideo, Heinitz, Stephan, Hernández Prieto, Álvaro, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Kalamara, Antigoni, Kavrigin, Pavel, Kimura, Atsushi, Kivel, Nikolay, Kokkoris, Michael, Kroll, Jiří, Krtička, Milan, Kurtulgil, Cem Deniz, Langer, Christoph, Leal Cidoncha, Esther, Lederer, Claudia, Lerendegui-Marco, Jorge, Leeb, Helmut, Lo Meo, Sergio, Lonsdale, Sarah Jane, Losito, Roberto, Macina, Daniela, Mallick, Amod Kishore, Marganiec, Justyna, Martı́nez, Trinitario, Masi, Alessandro, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Maugeri, Emilio Andrea, Mazzone, Annamaria, Mendoza Cembranos, Emilio, Mengoni, Alberto, Mingrone, Federica, Milazzo, Paolo Maria, Mirea, Mihail, Musumarra, Agatino, Negret, Alexandru, Nolte, Ralf, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Piersanti, Luciano, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Radeck, Désirée, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Rubbia, Carlo, Ryan, James A., Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Sosnin, Nikolay V., Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Warren, Stephen J., Weiß, Christina, Woods, Philip John, Wright, Tobias, and Žugec, Petar

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.

Published
2017

47. Measurement of the 240Pu(n,f) cross-section at the CERN n_TOF facility: first results from experimental area II (EAR-2)

Author

International Conference on Nuclear Data for Science and Technology (2016 : Bruges), Stamatopoulos, Athanasios, Tsinganis, Andrea, Colonna, Nicola, Vlastou, Rosa, Kokkoris, Michael, Schillebeeckx, Peter, Plompen, Arjan J. M., Heyse, Jan, Žugec, Petar, Barbagallo, Massimo, Calviani, Marco, Berthoumieux, Eric, Chiaveri, Enrico, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Bacak, Michael, Balibrea Correa, Javier, Barros, Susana C.C., Bečvář, František, Beinrucker, Clemens, Belloni, Fabio, Billowes, Jonathan, Boccone, Vittorio, Bosnar, Damir, Brugger, Markus, Caamaño, Manuel, Calviño Tavares, Francisco, Cano-Ott, Daniel, Cerutti, Francesco, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Damone, Lucia Anna, Deo, Kapil, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Frost, Robert J. W., Furman, Valter, Göbel, Kathrin, Gómez Hornillos, María Belén, García Ríos, Aczel Regino, Gheorghe, Ioana, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Goverdovski, Andrey, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Harada, Hideo, Heftrich, Tanja, Heinitz, Stephan, Hernández Prieto, Álvaro, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Katabuchi, Tatsuya, Kavrigin, Pavel, Ketlerov, Vladimir, Khryachkov, Vitaly, Kimura, Atsushi, Kivel, Nikolay, Krtička, Milan, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Lerendegui-Marco, Jorge, Licata, Mauro, Lo Meo, Sergio, Losito, Roberto, Macina, Daniela, Marganiec, Justyna, Martı́nez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Montesano, Simone, Musumarra, Agatino, Nolte, Ralf, Palomo Pinto, Francisco Rogelio, Paradela Dobarro, Carlos, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Rubbia, Carlo, Ryan, James, Sabaté-Gilarte, Marta, Saxena, Alok, Schmidt, Stefan, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Suryanarayana, Saraswatula Venkata, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Wallner, Anton, Warren, Stephen J., Weigand, Mario, Weiß, Christina, Wright, Tobias, International Conference on Nuclear Data for Science and Technology (2016 : Bruges), Stamatopoulos, Athanasios, Tsinganis, Andrea, Colonna, Nicola, Vlastou, Rosa, Kokkoris, Michael, Schillebeeckx, Peter, Plompen, Arjan J. M., Heyse, Jan, Žugec, Petar, Barbagallo, Massimo, Calviani, Marco, Berthoumieux, Eric, Chiaveri, Enrico, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Bacak, Michael, Balibrea Correa, Javier, Barros, Susana C.C., Bečvář, František, Beinrucker, Clemens, Belloni, Fabio, Billowes, Jonathan, Boccone, Vittorio, Bosnar, Damir, Brugger, Markus, Caamaño, Manuel, Calviño Tavares, Francisco, Cano-Ott, Daniel, Cerutti, Francesco, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Cosentino, Luigi, Damone, Lucia Anna, Deo, Kapil, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Frost, Robert J. W., Furman, Valter, Göbel, Kathrin, Gómez Hornillos, María Belén, García Ríos, Aczel Regino, Gheorghe, Ioana, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Goverdovski, Andrey, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Harada, Hideo, Heftrich, Tanja, Heinitz, Stephan, Hernández Prieto, Álvaro, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Katabuchi, Tatsuya, Kavrigin, Pavel, Ketlerov, Vladimir, Khryachkov, Vitaly, Kimura, Atsushi, Kivel, Nikolay, Krtička, Milan, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Lerendegui-Marco, Jorge, Licata, Mauro, Lo Meo, Sergio, Losito, Roberto, Macina, Daniela, Marganiec, Justyna, Martı́nez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Montesano, Simone, Musumarra, Agatino, Nolte, Ralf, Palomo Pinto, Francisco Rogelio, Paradela Dobarro, Carlos, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Porras Sánchez, José Ignacio, Praena, Javier, Quesada Molina, José Manuel, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Rubbia, Carlo, Ryan, James, Sabaté-Gilarte, Marta, Saxena, Alok, Schmidt, Stefan, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Suryanarayana, Saraswatula Venkata, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Wallner, Anton, Warren, Stephen J., Weigand, Mario, Weiß, Christina, and Wright, Tobias

Abstract

The accurate knowledge of the neutron-induced fission cross-sections of actinides and other isotopes involved in the nuclear fuel cycle is essential for the design of advanced nuclear systems, such as Generation-IV nuclear reactors. Such experimental data can also provide the necessary feedback for the adjustment of nuclear model parameters used in the evaluation process, resulting in the further development of nuclear fission models. In the present work, the 240Pu(n,f) cross-section was measured at CERN's n_TOF facility relative to the well-known 235U(n,f) cross section, over a wide range of neutron energies, from meV to almost MeV, using the time-of-flight technique and a set-up based on Micromegas detectors. This measurement was the first experiment to be performed at n_TOF's new experimental area (EAR-2), which offers a significantly higher neutron flux compared to the already existing experimental area (EAR-1). Preliminary results as well as the experimental procedure, including a description of the facility and the data handling and analysis, are presented.

Published
2017

48. Measurement of the neutron capture cross section of the fissile isotope 235U with the CERN n_TOF total absorption calorimeter and a fission tagging based on micromegas detectors

Author

International Conference on Nuclear Data for Science and Technology (2016 : Bruges), Balibrea Correa, Javier, Mendoza Cembranos, Emilio, Cano-Ott, Daniel, Krtička, Milan, Altstadt, Sebastian, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Barbagallo, Massimo, Bečvář, František, Belloni, Fabio, Berthoumieux, Eric, Billowes, Jonathan, Boccone, Vittorio, Bosnar, Damir, Brugger, Markus, Calviño Tavares, Francisco, Calviani, Marco, Carrapiço, Carlos, Cerutti, Francesco, Chiaveri, Enrico, Chin, Michael, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Durán, Ignacio, Eleftheriadis, Christos, Ferrari, Alfredo, Fraval, Kevin, Furman, Valter, Göbel, Kathrin, Guerrero Sánchez, Carlos, Gómez Hornillos, María Belén, Ganesan, Srinivasan, García Ríos, Aczel Regino, Giubrone, Giuseppe, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Goverdovski, Andrey, Griesmayer, Erich, Gunsing, Frank, Heftrich, Tanja, Heinitz, Stephan, Hernández Prieto, Álvaro, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Karadimos, Dimitri, Katabuchi, Tatsuya, Ketlerov, Vladimir, Khryachkov, Vitaly, Kivel, Nikolay, Koehler, Paul, Kokkoris, Michael, Kroll, Jiří, Lampoudis, Christos, Langer, Christoph, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Leong, Lou Sai, Lerendegui-Marco, Jorge, Licata, Mauro, Losito, Roberto, Mallick, Amod Kishore, Manousos, Athanasios, Marganiec, Justyna, Martı́nez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Mondelaers, Willy, Paradela Dobarro, Carlos, Pavlik, Andreas, Perkowski, Jarosław, Plompen, Arjan J. M., Praena, Javier, Quesada Molina, José Manuel, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Rubbia, Carlo, Ryan, James A., Sabaté-Gilarte, Marta, Sarmento, Raul, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Sedyshev, Pavel V., Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tarrío Vilas, Diego, Tassan-Got, Laurent, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vermeulen, Mark J., Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Ware, Timothy, Weigand, Mario, Weiss, Christian, Wright, Tobias, Žugec, Petar, International Conference on Nuclear Data for Science and Technology (2016 : Bruges), Balibrea Correa, Javier, Mendoza Cembranos, Emilio, Cano-Ott, Daniel, Krtička, Milan, Altstadt, Sebastian, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Barbagallo, Massimo, Bečvář, František, Belloni, Fabio, Berthoumieux, Eric, Billowes, Jonathan, Boccone, Vittorio, Bosnar, Damir, Brugger, Markus, Calviño Tavares, Francisco, Calviani, Marco, Carrapiço, Carlos, Cerutti, Francesco, Chiaveri, Enrico, Chin, Michael, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Durán, Ignacio, Eleftheriadis, Christos, Ferrari, Alfredo, Fraval, Kevin, Furman, Valter, Göbel, Kathrin, Guerrero Sánchez, Carlos, Gómez Hornillos, María Belén, Ganesan, Srinivasan, García Ríos, Aczel Regino, Giubrone, Giuseppe, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Goverdovski, Andrey, Griesmayer, Erich, Gunsing, Frank, Heftrich, Tanja, Heinitz, Stephan, Hernández Prieto, Álvaro, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Karadimos, Dimitri, Katabuchi, Tatsuya, Ketlerov, Vladimir, Khryachkov, Vitaly, Kivel, Nikolay, Koehler, Paul, Kokkoris, Michael, Kroll, Jiří, Lampoudis, Christos, Langer, Christoph, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Leong, Lou Sai, Lerendegui-Marco, Jorge, Licata, Mauro, Losito, Roberto, Mallick, Amod Kishore, Manousos, Athanasios, Marganiec, Justyna, Martı́nez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Mondelaers, Willy, Paradela Dobarro, Carlos, Pavlik, Andreas, Perkowski, Jarosław, Plompen, Arjan J. M., Praena, Javier, Quesada Molina, José Manuel, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Rubbia, Carlo, Ryan, James A., Sabaté-Gilarte, Marta, Sarmento, Raul, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Sedyshev, Pavel V., Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tarrío Vilas, Diego, Tassan-Got, Laurent, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vermeulen, Mark J., Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Ware, Timothy, Weigand, Mario, Weiss, Christian, Wright, Tobias, and Žugec, Petar

Abstract

The accuracy on neutron capture cross section of fissile isotopes must be improved for the design of future nuclear systems such as Gen-IV reactors and Accelerator Driven Systems. The High Priority Request List of the Nuclear Energy Agency, which lists the most important nuclear data requirements, includes also the neutron capture cross sections of fissile isotopes such as 233,235U and 239,241Pu. A specific experimental setup has been used at the CERN n_TOF facility for the measurement of the neutron capture cross section of 235U by a set of micromegas fission detectors placed inside a segmented BaF2 Total Absorption Calorimeter.

Published
2017

49. The CERN n_TOF facility: a unique tool for nuclear data measurement

Author

International Workshop on Compound-Nuclear Reactions and Related Topics (5. : 2016 : Tokio), Mingrone, Federica, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Bacak, Michael, Balibrea Correa, Javier, Barbagallo, Massimo, Barros, Susana C.C., Bečvář, František, Beinrucker, Clemens, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brugger, Markus, Caamaño, Manuel, Calviño Tavares, Francisco, Calviani, Marco, Cano-Ott, Daniel, Cardella, Roberto, Casanovas Hoste, Adrià, Castelluccio, Donato Maurizio, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés-Giraldo, Miguel Antonio, Cortés Rossell, Guillem Pere, Cosentino, Luigi, Damone, Lucia Anna, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Furman, Valter, Ganesan, Srinivasan, García Ríos, Aczel Regino, Gawlik, Aleksandra, Gheorghe, Ioana, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Goverdovski, Andrey, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Göbel, Kathrin, Harada, Hideo, Heftrich, Tanja, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Katabuchi, Tatsuya, Kavrigin, Pavel, Ketlerov, Vladimir, Khryachkov, Vitaly, Kimura, Atsushi, Kivel, Nikolay, Kokkoris, Michael, Krtička, Milan, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Lerendegui, Jorge, Lo Meo, Sergio, Lonsdale, Sarah Jane, Losito, Roberto, Macina, Daniela, Marganiec, Justyna, Martínez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio Andrea, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mirea, Mihail, Montesano, Simone, Musumarra, Agatino, Nolte, Ralf, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Praena, Javier, Quesada Molina, José Manuel, Rajeev, K., Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Rout, Prakash Chandra, Rubbia, Carlo, Ryan, James A., Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Warren, Stephen J., Weigand, Mario, Weiß, Christina, Wolf, Clemens, Woods, Philip John, Wright, Tobias, Žugec, Petar, International Workshop on Compound-Nuclear Reactions and Related Topics (5. : 2016 : Tokio), Mingrone, Federica, Aberle, Oliver, Andrzejewski, Józef, Audouin, Laurent, Bécares, Vicente, Bacak, Michael, Balibrea Correa, Javier, Barbagallo, Massimo, Barros, Susana C.C., Bečvář, František, Beinrucker, Clemens, Berthoumieux, Eric, Billowes, Jonathan, Bosnar, Damir, Brugger, Markus, Caamaño, Manuel, Calviño Tavares, Francisco, Calviani, Marco, Cano-Ott, Daniel, Cardella, Roberto, Casanovas Hoste, Adrià, Castelluccio, Donato Maurizio, Cerutti, Francesco, Chen, Yonghao, Chiaveri, Enrico, Colonna, Nicola, Cortés-Giraldo, Miguel Antonio, Cortés Rossell, Guillem Pere, Cosentino, Luigi, Damone, Lucia Anna, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dupont, Emmeric, Durán, Ignacio, Fernández Domínguez, Beatriz, Ferrari, Alfredo, Ferreira, Pedro G., Finocchiaro, Paolo, Furman, Valter, Ganesan, Srinivasan, García Ríos, Aczel Regino, Gawlik, Aleksandra, Gheorghe, Ioana, Glodariu, Tudor, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Goverdovski, Andrey, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Göbel, Kathrin, Harada, Hideo, Heftrich, Tanja, Heinitz, Stephan, Heyse, Jan, Jenkins, David, Jericha, Erwin, Käppeler, Franz, Kadi, Yacine, Katabuchi, Tatsuya, Kavrigin, Pavel, Ketlerov, Vladimir, Khryachkov, Vitaly, Kimura, Atsushi, Kivel, Nikolay, Kokkoris, Michael, Krtička, Milan, Leal Cidoncha, Esther, Lederer, Claudia, Leeb, Helmut, Lerendegui, Jorge, Lo Meo, Sergio, Lonsdale, Sarah Jane, Losito, Roberto, Macina, Daniela, Marganiec, Justyna, Martínez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Matteucci, Francesca, Maugeri, Emilio Andrea, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mirea, Mihail, Montesano, Simone, Musumarra, Agatino, Nolte, Ralf, Oprea, Andreea, Patronis, Nikolas, Pavlik, Andreas, Perkowski, Jarosław, Praena, Javier, Quesada Molina, José Manuel, Rajeev, K., Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Rout, Prakash Chandra, Rubbia, Carlo, Ryan, James A., Sabaté-Gilarte, Marta, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Sedyshev, Pavel V., Smith, Alastair Gavin, Stamatopoulos, Athanasios, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tarifeño-Saldivia, Ariel, Tassan-Got, Laurent, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Warren, Stephen J., Weigand, Mario, Weiß, Christina, Wolf, Clemens, Woods, Philip John, Wright, Tobias, and Žugec, Petar

Abstract

he study of the resonant structures in neutron-nucleus cross-sections, and therefore of the compound-nucleus reaction mechanism, requires spectroscopic measurements to determine with high accuracy the energy of the neutron interacting with the material under study. To this purpose, the neutron time-of-flight facility n_TOF has been operating since 2001 at CERN. Its characteristics, such as the high intensity instantaneous neutron flux, the wide energy range from thermal to few GeV, and the very good energy resolution, are perfectly suited to perform high-quality measurements of neutron-induced reaction cross sections. The precise and accurate knowledge of these cross sections plays a fundamental role in nuclear technologies, nuclear astrophysics and nuclear physics. Two different measuring stations are available at the n_TOF facility, called EAR1 and EAR2, with different characteristics of intensity of the neutron flux and energy resolution. These experimental areas, combined with advanced detection systems lead to a great flexibility in performing challenging measurement of high precision and accuracy, and allow the investigation isotopes with very low cross sections, or available only in small quantities, or with very high specific activity. The characteristics and performances of the two experimental areas of the n_TOF facility will be presented, together with the most important measurements performed to date and their physics case. In addition, the significant upcoming measurements will be introduced.

Published
2016

50. Fission fragment angular distribution measurements of 235U and 238U at CERN n_TOF facility

Author

International Workshop on Nuclear Data Evaluation for Reactor Applications (4. : 2015 : Aix-en-Provence), Leal Cidoncha, Esther, Durán, Ignacio, Paradela Dobarro, Carlos, Tarrío Vilas, Diego, Leong, Lou Sai, Tassan-Got, Laurent, Audouin, Laurent, Altstadt, Sebastian, Andrzejewski, Józef, Barbagallo, Massimo, Bécares, Vicente, Bečvář, František, Belloni, Fabio, Berthoumieux, Eric, Billowes, Jonathan, Boccone, Vittorio, Bosnar, Damir, Brugger, Markus, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Carrapiço, Carlos, Cerutti, Francesco, Chiaveri, Enrico, Chin, Michael, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dzysiuk, Nataliia, Eleftheriadis, Christos, Ferrari, Alfredo, Fraval, Kevin, Ganesan, Srinivasan, García Ríos, Aczel Regino, Giubrone, Giuseppe, Gómez Hornillos, María Belén, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Gurusamy, Perumal, Hernández Prieto, Álvaro, Jenkins, David, Jericha, Erwin, Kadi, Yacine, Käppeler, Franz, Karadimos, Dimitri, Kivel, Nikolay, Koehler, Paul, Kokkoris, Michael, Krtička, Milan, Kroll, Jiří, Lampoudis, Christos, Langer, Christoph, Lederer, Claudia, Leeb, Helmut, Lo Meo, Sergio, Losito, Roberto, Mallick, Amod Kishore, Manousos, Athanasios, Marganiec, Justyna, Martı́nez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Meaze, AKM Moinul Haque, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Mondelaers, Willy, Pavlik, Andreas, Perkowski, Jarosław, Plompen, Arjan J. M., Praena, Javier, Quesada Molina, José Manuel, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Roman, Faustin Laurenţiu, Rubbia, Carlo, Sabaté-Gilarte, Marta, Sarmento, Raul, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Versaci, Roberto, Vermeulen, Mark J., Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Ware, Timothy, Weigand, Mario, Weiß, Christina, Wright, Tobias, Žugec, Petar, International Workshop on Nuclear Data Evaluation for Reactor Applications (4. : 2015 : Aix-en-Provence), Leal Cidoncha, Esther, Durán, Ignacio, Paradela Dobarro, Carlos, Tarrío Vilas, Diego, Leong, Lou Sai, Tassan-Got, Laurent, Audouin, Laurent, Altstadt, Sebastian, Andrzejewski, Józef, Barbagallo, Massimo, Bécares, Vicente, Bečvář, František, Belloni, Fabio, Berthoumieux, Eric, Billowes, Jonathan, Boccone, Vittorio, Bosnar, Damir, Brugger, Markus, Calviani, Marco, Calviño Tavares, Francisco, Cano-Ott, Daniel, Carrapiço, Carlos, Cerutti, Francesco, Chiaveri, Enrico, Chin, Michael, Colonna, Nicola, Cortés Rossell, Guillem Pere, Cortés-Giraldo, Miguel Antonio, Diakaki, Maria, Domingo-Pardo, César, Dressler, Rugard, Dzysiuk, Nataliia, Eleftheriadis, Christos, Ferrari, Alfredo, Fraval, Kevin, Ganesan, Srinivasan, García Ríos, Aczel Regino, Giubrone, Giuseppe, Gómez Hornillos, María Belén, Gonçalves, Isabel Maria Ferro, González Romero, Enrique Miguel, Griesmayer, Erich, Guerrero Sánchez, Carlos, Gunsing, Frank, Gurusamy, Perumal, Hernández Prieto, Álvaro, Jenkins, David, Jericha, Erwin, Kadi, Yacine, Käppeler, Franz, Karadimos, Dimitri, Kivel, Nikolay, Koehler, Paul, Kokkoris, Michael, Krtička, Milan, Kroll, Jiří, Lampoudis, Christos, Langer, Christoph, Lederer, Claudia, Leeb, Helmut, Lo Meo, Sergio, Losito, Roberto, Mallick, Amod Kishore, Manousos, Athanasios, Marganiec, Justyna, Martı́nez, Trinitario, Massimi, Cristian, Mastinu, Pierfrancesco, Mastromarco, Mario, Meaze, AKM Moinul Haque, Mendoza Cembranos, Emilio, Mengoni, Alberto, Milazzo, Paolo Maria, Mingrone, Federica, Mirea, Mihail, Mondelaers, Willy, Pavlik, Andreas, Perkowski, Jarosław, Plompen, Arjan J. M., Praena, Javier, Quesada Molina, José Manuel, Rauscher, Thomas, Reifarth, René, Riego Pérez, Albert, Robles Manzano, Maria Soledad, Roman, Faustin Laurenţiu, Rubbia, Carlo, Sabaté-Gilarte, Marta, Sarmento, Raul, Saxena, Alok, Schillebeeckx, Peter, Schmidt, Stefan, Schumann, Dorothea, Tagliente, Giuseppe, Taı́n Enríquez, José Luis, Tsinganis, Andrea, Valenta, Stanislav, Vannini, Gianni, Variale, Vincenzo, Vaz, Pedro, Ventura, Alberto, Versaci, Roberto, Vermeulen, Mark J., Vlachoudis, Vasilis, Vlastou, Rosa, Wallner, Anton, Ware, Timothy, Weigand, Mario, Weiß, Christina, Wright, Tobias, and Žugec, Petar

Abstract

Neutron-induced fission cross sections of 238U and 235U are used as standards in the fast neutron region up to 200 MeV. A high accuracy of the standards is relevant to experimentally determine other neutron reaction cross sections. Therefore, the detection effciency should be corrected by using the angular distribution of the fission fragments (FFAD), which are barely known above 20 MeV. In addition, the angular distribution of the fragments produced in the fission of highly excited and deformed nuclei is an important observable to investigate the nuclear fission process. In order to measure the FFAD of neutron-induced reactions, a fission detection setup based on parallel-plate avalanche counters (PPACs) has been developed and successfully used at the CERN-n_TOF facility. In this work, we present the preliminary results on the analysis of new 235U(n,f) and 238U(n,f) data in the extended energy range up to 200 MeV compared to the existing experimental data.

Published
2016

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