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534 results on '"Karadimos, D."'

1. Neutron capture cross section measurement of 238U at the n TOF CERN facility with C6D6 scintillation detectors in the energy region from 1 eV to 700 keV

Author: Collaboration, n_TOF, Mingrone, F., Massimi, C., Vannini, G., Colonna, N., Gunsing, F., Žugec, P., Altstadt, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Duran, I., Dressler, R., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Guerrero, C., Hernández-Prieto, A., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Krtička, 1 M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Meo, S. Lo, Losito, R., Mallick, A., Manousos, A., Marganiec, J., Martínez, T., Mastinu, P. F., Mastromarco, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Robles, M. S., Rubbia, C., Sabaté-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., and Wright, T.
Subjects: Nuclear Experiment
Abstract: The aim of this work is to provide a precise and accurate measurement of the 238U(n,g) reaction cross section in the energy region from 1 eV to 700 keV. This reaction is of fundamental importance for the design calculations of nuclear reactors, governing the behaviour of the reactor core. In particular, fast reactors, which are experiencing a growing interest for their ability to burn radioactive waste, operate in the high energy region of the neutron spectrum. In this energy region most recent evaluations disagree due to inconsistencies in the existing measurements of up to 15%. In addition, the assessment of nuclear data uncertainty performed for innovative reactor systems shows that the uncertainty in the radiative capture cross-section of 238U should be further reduced to 1-3% in the energy region from 20 eV to 25 keV. To this purpose, addressed by the Nuclear Energy Agency as a priority nuclear data need, complementary experiments, one at the GELINA and two at the n_TOF facility, were proposed and carried out within the 7th Framework Project ANDES of the European Commission. The results of one of these 238U(n,g) measurements performed at the n_TOF CERN facility are presented in this work. The gamma-ray cascade following the radiative neutron capture has been detected exploiting a setup of two C6D6 liquid scintillators. Resonance parameters obtained from this work are on average in excellent agreement with the ones reported in evaluated libraries. In the unresolved resonance region, this work yields a cross section in agreement with evaluated libraries up to 80 keV, while for higher energies our results are significantly higher., Comment: 15 pages, 10 captioned figures
Published: 2016
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2. Integral measurement of the $^{12}$C(n,p)$^{12}$B reaction up to 10 GeV

Author: Žugec, P., Colonna, N., Bosnar, D., Ventura, A., Mengoni, A., Altstadt, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Cosentino, L., Diakaki, M., Domingo-Pardo, C., Dressler, R., Duran, I., Eleftheriadis, C., Ferrari, A., Finocchiaro, P., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Heinitz, S., Jenkins, D. G., Jericha, E., Käppeler, F., Karadimos, D., Kivel, N., Kokkoris, M., Krtička, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Leong, L. S., Meo, S. Lo, Losito, R., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P., Mastromarco, M., Mendoza, E., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Musumarra, A., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., and Wright, T.
Subjects: Nuclear Experiment
Abstract: The integral measurement of the $^{12}$C(n,p)$^{12}$B reaction was performed at the neutron time of flight facility n_TOF at CERN. The total number of $^{12}$B nuclei produced per neutron pulse of the n_TOF beam was determined using the activation technique in combination with a time of flight technique. The cross section is integrated over the n_TOF neutron energy spectrum from reaction threshold at 13.6 MeV to 10 GeV. Having been measured up to 1 GeV on basis of the $^{235}$U(n,f) reaction, the neutron energy spectrum above 200 MeV has been reevaluated due to the recent extension of the cross section reference for this particular reaction, which is otherwise considered a standard up to 200 MeV. The results from the dedicated GEANT4 simulations have been used to evaluate the neutron flux from 1 GeV up to 10 GeV. The experimental results related to the $^{12}$C(n,p)$^{12}$B reaction are compared with the evaluated cross sections from major libraries and with the predictions of different GEANT4 models, which mostly underestimate the $^{12}$B production. On the contrary, a good reproduction of the integral cross section derived from measurements is obtained with TALYS-1.6 calculations, with optimized parameters., Comment: 14 pages, 11 figures, 3 tables
Published: 2016
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3. Measurement and analysis of the Am-243 neutron capture cross section at the n_TOF facility at CERN

Author: Collaboration, n_TOF, Mendoza, E., Cano-Ott, D., Guerrero, C., Berthoumieux, E., Abbondanno, U., Aerts, G., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Balibrea, J., Baumann, P., Becvar, F., Belloni, F., Calvino, F., Calviani, M., Capote, R., Carrapico, C., de Albornoz, A. Carrillo, Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillmann, I., Dolfini, R., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Fitzpatrick, L., Frais-Koelbl, H., Fujii, K., Furman, W., Goncalves, I., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Gunsing, F., Haas, B., Haight, R., Heil, M., Herrera-Martinez, A., Igashira, M., Isaev, S., Jericha, E., Kappeler, F., Kadi, Y., Karadimos, D., Karamanis, D., Ketlerov, V., Kerveno, M., Koehler, P., Konovalov, V., Kossionides, E., Krticka, M., Lampoudis, C., Leeb, H., Lindote, A., Lopes, I., Lossito, R., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., Martinez, T., Massimi, C., Mastinu, P., Mengoni, A., Milazzo, P. M., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., Brien, S. O, Oshima, M., Pancin, J., Papachristodoulou, C., Papadopoulos, C., Paradela, C., Patronis, N., Pavlik, A., Pavlopoulos, P., Perrot, L., Pigni, M. T., Plag, R., Plompen, A., Plukis, A., Poch, A., Praena, J., Pretel, C., Quesada, J., Rauscher, T., Reifarth, R., Rosetti, M., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Santos, C., Sarchiapone, L., Savvidis, I., Stephan, C., Tagliente, G., Tain, J. L., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., Vicente, M. C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wendler, H., Wiescher, M., and Wisshak, K.
Subjects: Nuclear Experiment
Abstract: Background:The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Reduce the $^{243}$Am(n,$\gamma$) cross section uncertainty. Method: The $^{243}$Am(n,$\gamma$) cross section has been measured at the n_TOF facility at CERN with a BaF$_{2}$ Total Absorption Calorimeter, in the energy range between 0.7 eV and 2.5 keV. Results: The $^{243}$Am(n,$\gamma$) cross section has been successfully measured in the mentioned energy range. The resolved resonance region has been extended from 250 eV up to 400 eV. In the unresolved resonance region our results are compatible with one of the two incompatible capture data sets available below 2.5 keV. The data available in EXFOR and in the literature has been used to perform a simple analysis above 2.5 keV. Conclusions: The results of this measurement contribute to reduce the $^{243}$Am(n,$\gamma$) cross section uncertainty and suggest that this cross section is underestimated up to 25% in the neutron energy range between 50 eV and a few keV in the present evaluated data libraries.
Published: 2014
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4. High accuracy determination of the $^{238}$U/$^{235}$U fission cross section ratio up to $\sim$1 GeV at n_TOF (CERN)

Author: Paradela, C., Calviani, M., Tarrío, D., Leal-Cidoncha, E., Leong, L. S., Tassan-Got, L., Naour, C. Le, Duran, I., Colonna, N., Audouin, L., Mastromarco, M., Meo, S. Lo, Ventura, A., Altstadt, S., Andrzejewski, J., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Cosentino, L., Diakaki, M., Domingo-Pardo, C., Dressler, R., Eleftheriadis, C., Ferrari, A., Finocchiaro, P., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Heinitz, S., Jenkins, D. G., Jericha, E., Käppeler, F., Karadimos, D., Kivel, N., Kokkoris, M., Krtička, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Musumarra, A., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Tagliente, G., Tain, J. L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., Wright, T., and Žugec, P.
Subjects: Nuclear Experiment
Abstract: The $^{238}$U to $^{235}$U fission cross section ratio has been determined at n_TOF up to $\sim$1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets have been collected and compared. They are all consistent to each other within the relative systematic uncertainty of 3-4%. The data collected at n_TOF have been suitably combined to yield a unique fission cross section ratio as a function of the neutron energy. The result confirms current evaluations up to 200 MeV. A good agreement is also observed with theoretical calculations based on the INCL++/Gemini++ combination up to the highest measured energy. The n_TOF results may help solving a long-standing discrepancy between the two most important experimental dataset available so far above 20 MeV, while extending the neutron energy range for the first time up to $\sim$1 GeV.
Published: 2014
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5. Measurement of the $^{12}$C($n,p$)$^{12}$B cross section at n_TOF (CERN) by in-beam activation analysis

Author: Žugec, P., Colonna, N., Bosnar, D., Mengoni, A., Altstadt, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Brugger, M., Calviani, M., Cano-Ott, F. Calviño D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Cosentino, L., Diakaki, M., Domingo-Pardo, C., Dressler, R., Duran, I., Eleftheriadis, C., Ferrari, A., Finocchiaro, P., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Heinitz, S., Jenkins, D. G., Jericha, E., Käppeler, F., Karadimos, D., Kivel, N., Kokkoris, M., Krtička, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Leong, L. S., LoMeo, S., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P., Mastromarco, M., Mendoza, E., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Musumarra, A., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., and Wright, T.
Subjects: Nuclear Experiment
Abstract: The integral cross section of the $^{12}$C($n,p$)$^{12}$B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. The measurement relies on the activation technique, with the $\beta$-decay of $^{12}$B measured over a period of four half-lives within the same neutron bunch in which the reaction occurs. The results indicate that model predictions, used in a variety of applications, are mostly inadequate. The value of the integral cross section reported here can be used as a benchmark for verifying or tuning model calculations., Comment: 6 pages, 4 figures
Published: 2014
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6. GEANT4 simulation of the neutron background of the C$_6$D$_6$ set-up for capture studies at n_TOF

Author: collaboration, n_TOF, Žugec, P., Colonna, N., Bosnar, D., Altstadt, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Dressler, R., Duran, I., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Heinitz, S., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Krtička, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Leong, L. S., Meo, S. Lo, Losito, R., Manousos, A., Marganiec, J., Martìnez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., and Wright, T.
Subjects: Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract: The neutron sensitivity of the C$_6$D$_6$ detector setup used at n_TOF for capture measurements has been studied by means of detailed GEANT4 simulations. A realistic software replica of the entire n_TOF experimental hall, including the neutron beam line, sample, detector supports and the walls of the experimental area has been implemented in the simulations. The simulations have been analyzed in the same manner as experimental data, in particular by applying the Pulse Height Weighting Technique. The simulations have been validated against a measurement of the neutron background performed with a $^\mathrm{nat}$C sample, showing an excellent agreement above 1 keV. At lower energies, an additional component in the measured $^\mathrm{nat}$C yield has been discovered, which prevents the use of $^\mathrm{nat}$C data for neutron background estimates at neutron energies below a few hundred eV. The origin and time structure of the neutron background have been derived from the simulations. Examples of the neutron background for two different samples are demonstrating the important role of accurate simulations of the neutron background in capture cross section measurements.
Published: 2014
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7. $^{62}$Ni($n,\gamma$) and $^{63}$Ni($n,\gamma$) cross sections measured at n_TOF/CERN

Author: Lederer, C., Massimi, C., Berthoumieux, E., Colonna, N., Dressler, R., Guerrero, C., Gunsing, F., Käppeler, F., Kivel, N., Pignatari, M., Reifarth, R., Schumann, D., Wallner, A., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Becares, V., Becvar, F., Belloni, F., Berthier, B., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calvino, F., Cano-Ott, D., Carrapico, C., Cerutti, F., Chiaveri, E., Chin, M., Cortes, G., Cortes-Giraldo, M. A., Dillmann, I., Domingo-Pardo, C., Duran, I., Dzysiuk, N., Eleftheriadis, C., Fernandez-Ordonez, M., Ferrari, A., Fraval, K., Ganesan, S., Garcıa, A. R., Giubrone, G., Gomez-Hornillos, M. B., Goncalves, I. F., Gonzalez-Romero, E., Gramegna, F., Griesmayer, E., Gurusamy, P., Harrisopulos, S., Heil, M., Ioannides, K., Jenkins, D. G., Jericha, E., Kadi, Y., Karadimos, D., Korschinek, G., Krticka, M., Kroll, J., Langer, C., Lebbos, E., Leeb, H., Leong, L. S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Marrone, S., Martinez, T., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J. L., Tarrıo, D., Tassan-Got, L., Tsinganis, A., Tlustos, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Versaci, R., Vlachoudis, V., Vlastou, R., Ware, T., Weigand, M., Weiß, C., Wright, T. J., and Zugec, P.
Subjects: Nuclear Experiment
Abstract: The cross section of the $^{62}$Ni($n,\gamma$) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200~keV neutron energy and Maxwellian averaged cross sections (MACS) from $kT=5-100$ keV were calculated. With a total uncertainty of 4.5%, the stellar cross section is in excellent agreement with the the KADoNiS compilation at $kT=30$ keV, while being systematically lower up to a factor of 1.6 at higher stellar temperatures. The cross section of the $^{63}$Ni($n,\gamma$) reaction was measured for the first time at n_TOF. We determined unresolved cross sections from 10 to 270 keV with a systematic uncertainty of 17%. These results provide fundamental constraints on $s$-process production of heavier species, especially the production of Cu in massive stars, which serve as the dominant source of Cu in the solar system.
Published: 2014
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8. Experimental neutron capture data of $^{58}$Ni from the CERN n_TOF facility

Author: collaboration, n_TOF, Žugec, P., Barbagallo, M., Colonna, N., Bosnar, D., Altstadt, S., Andrzejewski, J., Audouin, L., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Duran, I., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Koehler, P., Kokkoris, M., Krtička, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Leong, L. S., Losito, R., Manousos, A., Marganiec, J., Martìnez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Pignatari, M., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., and Wright, T.
Subjects: Nuclear Experiment
Abstract: The $^{58}$Ni $(n,\gamma)$ cross section has been measured at the neutron time of flight facility n_TOF at CERN, in the energy range from 27 meV up to 400 keV. In total, 51 resonances have been analyzed up to 122 keV. Maxwellian averaged cross sections (MACS) have been calculated for stellar temperatures of kT$=$5-100 keV with uncertainties of less than 6%, showing fair agreement with recent experimental and evaluated data up to kT = 50 keV. The MACS extracted in the present work at 30 keV is 34.2$\pm$0.6$_\mathrm{stat}\pm$1.8$_\mathrm{sys}$ mb, in agreement with latest results and evaluations, but 12% lower relative to the recent KADoNIS compilation of astrophysical cross sections. When included in models of the s-process nucleosynthesis in massive stars, this change results in a 60% increase of the abundance of $^{58}$Ni, with a negligible propagation on heavier isotopes. The reason is that, using both the old or the new MACS, 58Ni is efficiently depleted by neutron captures., Comment: 10 pages, 8 figures, 5 tables
Published: 2014
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9. Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis

Author: Lederer, C., Massimi, C., Altstadt, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bevá, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Duran, I., Dressler, R., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Korschinek, G., Krtika, M., Kroll, J., Langer, C., Leeb, H., Leong, L. S., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondelaers, W., Paradela, C., Pavlik, A., Perkowski, J., Pignatari, M., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Schumann, D., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., Wright, T. J., and Zugec, P.
Subjects: Nuclear Experiment, Astrophysics - Solar and Stellar Astrophysics
Abstract: The $^{63}$Ni($n, \gamma$) cross section has been measured for the first time at the neutron time-of-flight facility n\_TOF at CERN from thermal neutron energies up to 200 keV. In total, capture kernels of 12 (new) resonances were determined. Maxwellian Averaged Cross Sections were calculated for thermal energies from kT = 5 keV to 100 keV with uncertainties around 20%. Stellar model calculations for a 25 M$_\odot$ star show that the new data have a significant effect on the $s$-process production of $^{63}$Cu, $^{64}$Ni, and $^{64}$Zn in massive stars, allowing stronger constraints on the Cu yields from explosive nucleosynthesis in the subsequent supernova.
Published: 2013
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10. Nuclear Data for the Thorium Fuel Cycle and the Transmutation of Nuclear Waste

Author: Gunsing, F., Altstadt, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Duran, I., Dressler, R., Eleftheriadis, C., Fraval, K., Ferrari, A., Ganesan, S., Garcìa, A. R., Giubrone, G., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Guerrero, C., Hernández-Prieto, A., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Krtička, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Losito, R., Mallick, A., Manousos, A., Marganiec, J., Martìnez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Robles, M. S., Rubbia, C., Sabaté-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Tagliente, G., Tain, J. L., Tarrìo, D., Tassan-Got, L., Tsinganis, A., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Valenta, S., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., Wright, T., Žugec, P., Revol, Jean-Pierre, editor, Bourquin, Maurice, editor, Kadi, Yacine, editor, Lillestol, Egil, editor, de Mestral, Jean-Christophe, editor, and Samec, Karel, editor
Published: 2016
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11. Neutron-induced fission cross sections of Th-232 and U-233 up to 1 GeV using parallel plate avalanche counters at the CERN n_TOF facility

Author: Tarrío, Diego, Tassan-Got, L., Duran, I., Leong, L. S., Paradela, C., Audouin, L., Leal-Cidoncha, E., Le Naour, C., Caamano, M., Ventura, A., Altstadt, S., Andrzejewski, J., Barbagallo, M., Becares, V., Becvar, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calvino, F., Cano-Ott, D., Carrapico, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortes, G., Cortes-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., Garcia, A. R., Giubrone, G., Gomez-Hornillos, M. B., Goncalves, I. F., Gonzalez-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Jenkins, D. G., Jericha, E., Kadi, Y., Kaeppeler, F., Karadimos, D., Koehler, P., Kokkoris, M., Krticka, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Losito, R., Manousos, A., Marganiec, J., Martinez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Robles, M. S., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J. L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T. J., Zugec, P., Tarrío, Diego, Tassan-Got, L., Duran, I., Leong, L. S., Paradela, C., Audouin, L., Leal-Cidoncha, E., Le Naour, C., Caamano, M., Ventura, A., Altstadt, S., Andrzejewski, J., Barbagallo, M., Becares, V., Becvar, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calvino, F., Cano-Ott, D., Carrapico, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortes, G., Cortes-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., Garcia, A. R., Giubrone, G., Gomez-Hornillos, M. B., Goncalves, I. F., Gonzalez-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Jenkins, D. G., Jericha, E., Kadi, Y., Kaeppeler, F., Karadimos, D., Koehler, P., Kokkoris, M., Krticka, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Losito, R., Manousos, A., Marganiec, J., Martinez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Robles, M. S., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J. L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T. J., and Zugec, P.
Abstract: The neutron-induced fission cross sections of Th-232 and U-233 were measured relative to U-235 in a wide neutron energy range up to 1 GeV (and from fission threshold in the case of Th-232, and from 0.7 eV in case of U-233), using the white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. Parallel plate avalanche counters (PPACs) were used, installed at the Experimental Area 1 (EAR1), which is located at 185 m from the neutron spallation target. The anisotropic emission of fission fragments were taken into account in the detection efficiency by using, in the case of U-233, previous results available in EXFOR, whereas in the case of Th-232 these data were obtained from our measurement, using PPACs and targets tilted 45 degrees with respect to the neutron beam direction. Finally, the obtained results are compared with past measurements and major evaluated nuclear data libraries. Calculations using the high-energy reaction models INCL++ and ABLA07 were performed and some of their parameters were modified to reproduce the experimental results. At high energies, where no other neutron data exist, our results are compared with experimental data on proton-induced fission. Moreover, the dependence of the fission cross section at 1 GeV with the fissility parameter of the target nucleus is studied by combining those ( p, f) data with our (n, f) data on Th-232 and U-233 and on other isotopes studied earlier at n_TOF using the same experimental setup.
Published: 2023
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12. Neutron-induced fission cross sections of Th232 and U233 up to 1 GeV using parallel plate avalanche counters at the CERN n_TOF facility

Author: Tarrío, D, Tassan-Got, L, Duran, I, Leong, L S, Paradela, C, Audouin, L, Leal-Cidoncha, E, Le Naour, C, Caamaño, M, Ventura, A, Altstadt, S, Andrzejewski, J, Barbagallo, M, Bécares, V, Becvár, F, Belloni, F, Berthoumieux, E, Billowes, J, Boccone, V, Bosnar, D, Brugger, M, Calviani, M, Calviño, F, Cano-Ott, D, Carrapiço, C, Cerutti, F, Chiaveri, E, Chin, M, Colonna, N, Cortés, G, Cortés-Giraldo, M A, Diakaki, M, Domingo-Pardo, C, Dzysiuk, N, Eleftheriadis, C, Ferrari, A, Fraval, K, Ganesan, S, García, A R, Giubrone, G, Gómez-Hornillos, M B, Gonçalves, I F, González-Romero, E, Griesmayer, E, Guerrero, C, Gunsing, F, Gurusamy, P, Jenkins, D G, Jericha, E, Kadi, Y, Käppeler, F, Karadimos, D, Koehler, P, Kokkoris, M, Krticka, M, Kroll, J, Langer, C, Lederer, C, Leeb, H, Losito, R, Manousos, A, Marganiec, J, Martínez, T, Massimi, C, Mastinu, P F, Mastromarco, M, Meaze, M, Mendoza, E, Mengoni, A, Milazzo, P M, Mingrone, F, Mirea, M, Mondalaers, W, Pavlik, A, Perkowski, J, Plompen, A, Praena, J, Quesada, J M, Rauscher, T, Reifarth, R, Riego, A, Robles, M S, Roman, F, Rubbia, C, Sarmento, R, Schillebeeckx, P, Schmidt, S, Tagliente, G, Tain, J L, Tsinganis, A, Valenta, S, Vannini, G, Variale, V, Vaz, P, Versaci, R, Vermeulen, M J, Vlachoudis, V, Vlastou, R, Wallner, A, Ware, T, Weigand, M, Weiß, C, Wright, T J, and Žugec, P
Subjects: Nuclear Physics - Experiment
Abstract: The neutron-induced fission cross sections of Th232 and U233 were measured relative to U235 in a wide neutron energy range up to 1 GeV (and from fission threshold in the case of Th232, and from 0.7 eV in case of U233), using the white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. Parallel plate avalanche counters (PPACs) were used, installed at the Experimental Area 1 (EAR1), which is located at 185 m from the neutron spallation target. The anisotropic emission of fission fragments were taken into account in the detection efficiency by using, in the case of U233, previous results available in EXFOR, whereas in the case of Th232 these data were obtained from our measurement, using PPACs and targets tilted 45∘ with respect to the neutron beam direction. Finally, the obtained results are compared with past measurements and major evaluated nuclear data libraries. Calculations using the high-energy reaction models INCL++ and ABLA07 were performed and some of their parameters were modified to reproduce the experimental results. At high energies, where no other neutron data exist, our results are compared with experimental data on proton-induced fission. Moreover, the dependence of the fission cross section at 1 GeV with the fissility parameter of the target nucleus is studied by combining those (p,f) data with our (n,f) data on Th232 and U233 and on other isotopes studied earlier at n_TOF using the same experimental setup.
Published: 2023

13. Neutron-induced fission cross sections of Th 232 and U 233 up to 1 GeV using parallel plate avalanche counters at the CERN n_TOF facility

Author: N_TOF Collaboration, Tarrío, D., Tassan-Got, L., Duran, I., Leong, L. S., Paradela, C., Audouin, L., Leal-Cidoncha, E., Le Naour, C., Caamaño, M., Ventura, A., Altstadt, S., Andrzejewski, J., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Koehler, P., Kokkoris, M., Krtička, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Robles, M. S., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J. L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., Wright, T. J., and Žugec, P.
Subjects: ddc:000, Computer science, information & general works
Abstract: The neutron-induced fission cross sections of $^{232}$Th and $^{233}$U were measured relative to $^{235}$U in a wide neutron energy range up to 1 GeV (and from fission threshold in the case of $^{232}$Th, and from 0.7 eV in case of $^{233}$U), using the white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. Parallel plate avalanche counters (PPACs) were used, installed at the Experimental Area 1 (EAR1), which is located at 185 m from the neutron spallation target. The anisotropic emission of fission fragments were taken into account in the detection efficiency by using, in the case of $^{233}$U, previous results available in EXFOR, whereas in the case of $^{232}$Th these data were obtained from our measurement, using PPACs and targets tilted 45∘ with respect to the neutron beam direction. Finally, the obtained results are compared with past measurements and major evaluated nuclear data libraries. Calculations using the high-energy reaction models INCL++ and ABLA07 were performed and some of their parameters were modified to reproduce the experimental results. At high energies, where no other neutron data exist, our results are compared with experimental data on proton-induced fission. Moreover, the dependence of the fission cross section at 1 GeV with the fissility parameter of the target nucleus is studied by combining those (p,f) data with our (n,f) data on $^{232}$Th and $^{233}$U and on other isotopes studied earlier at n_TOF using the same experimental setup.
Published: 2023

14. Neutron-induced fission cross sections of <math><mmultiscripts><mi>Th</mi><mprescripts/><none/><mn>232</mn></mmultiscripts></math> and <math><mmultiscripts><mi mathvariant='normal'>U</mi><mprescripts/><none/><mn>233</mn></mmultiscripts></math> up to 1 GeV using parallel plate avalanche counters at the CERN n_TOF facility

Author: Tarrío, D, Tassan-Got, L, Duran, I, Leong, L.S, Paradela, C, Audouin, L, Leal-Cidoncha, E, Le Naour, C, Caamaño, M, Ventura, A, Altstadt, S, Andrzejewski, J, Barbagallo, M, Bécares, V, Becvár, F, Belloni, F, Berthoumieux, E, Billowes, J, Boccone, V, Bosnar, D, Brugger, M, Calviani, M, Calviño, F, Cano-Ott, D, Carrapiço, C, Cerutti, F, Chiaveri, E, Chin, M, Colonna, N, Cortés, G, Cortés-Giraldo, M.A, Diakaki, M, Domingo-Pardo, C, Dzysiuk, N, Eleftheriadis, C, Ferrari, A, Fraval, K, Ganesan, S, García, A.R, Giubrone, G, Gómez-Hornillos, M.B, Gonçalves, I.F, González-Romero, E, Griesmayer, E, Guerrero, C, Gunsing, F, Gurusamy, P, Jenkins, D.G, Jericha, E, Kadi, Y, Käppeler, F, Karadimos, D, Koehler, P, Kokkoris, M, Krticka, M, Kroll, J, Langer, C, Lederer, C, Leeb, H, Losito, R, Manousos, A, Marganiec, J, Martínez, T, Massimi, C, Mastinu, P.F, Mastromarco, M, Meaze, M, Mendoza, E, Mengoni, A, Milazzo, P.M, Mingrone, F, Mirea, M, Mondalaers, W, Pavlik, A, Perkowski, J, Plompen, A, Praena, J, Quesada, J.M, Rauscher, T, Reifarth, R, Riego, A, Robles, M.S, Roman, F, Rubbia, C, Sarmento, R, Schillebeeckx, P, Schmidt, S, Tagliente, G, Tain, J.L, Tsinganis, A, Valenta, S, Vannini, G, Variale, V, Vaz, P, Versaci, R, Vermeulen, M.J, Vlachoudis, V, Vlastou, R, Wallner, A, Ware, T, Weigand, M, Weiß, C, Wright, T.J, Žugec, P, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and n_TOF
Subjects: [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: International audience; The neutron-induced fission cross sections of Th232 and U233 were measured relative to U235 in a wide neutron energy range up to 1 GeV (and from fission threshold in the case of Th232, and from 0.7 eV in case of U233), using the white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. Parallel plate avalanche counters (PPACs) were used, installed at the Experimental Area 1 (EAR1), which is located at 185 m from the neutron spallation target. The anisotropic emission of fission fragments were taken into account in the detection efficiency by using, in the case of U233, previous results available in EXFOR, whereas in the case of Th232 these data were obtained from our measurement, using PPACs and targets tilted 45∘ with respect to the neutron beam direction. Finally, the obtained results are compared with past measurements and major evaluated nuclear data libraries. Calculations using the high-energy reaction models INCL++ and ABLA07 were performed and some of their parameters were modified to reproduce the experimental results. At high energies, where no other neutron data exist, our results are compared with experimental data on proton-induced fission. Moreover, the dependence of the fission cross section at 1 GeV with the fissility parameter of the target nucleus is studied by combining those (p,f) data with our (n,f) data on Th232 and U233 and on other isotopes studied earlier at n_TOF using the same experimental setup.
Published: 2023

15. GEANT4 simulation of the neutron background of the C6D6 set-up for capture studies at n_TOF

Author: Žugec, P., Colonna, N., Bosnar, D., Altstadt, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M.A., Diakaki, M., Domingo-Pardo, C., Dressler, R., Duran, I., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A.R., Giubrone, G., Gómez-Hornillos, M.B., Gonçalves, I.F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Heinitz, S., Jenkins, D.G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Krtička, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Leong, L.S., Lo Meo, S., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P.F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P.M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J.M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Tagliente, G., Tain, J.L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M.J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., and Wright, T.
Published: 2014
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16. The (n, α) Reaction in the s-process Branching Point 59Ni

Author: Weiß, C., Guerrero, C., Griesmayer, E., Andrzejewski, J., Badurek, G., Chiaveri, E., Dressler, R., Ganesan, S., Jericha, E., Käppeler, F., Koehler, P., Lederer, C., Leeb, H., Marganiec, J., Pavlik, A., Perkowski, J., Rauscher, T., Reifarth, R., Schumann, D., Tagliente, G., Vlachoudis, V., Altstadt, S., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M.A., Diakaki, M., Domingo-Pardo, C., Duran, I., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., García, A.R., Giubrone, G., Gómez-Hornillos, M.B., Gonçalves, I.F., González-Romero, E., Gunsing, F., Gurusamy, P., Hernández-Prieto, A., Jenkins, D.G., Kadi, Y., Karadimos, D., Kivel, N., Kokkoris, M., Krtička, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Leong, L.S., Losito, R., Mallick, A., Manousos, A., Martínez, T., Massimi, C., Mastinu, P.F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P.M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Plompen, A., Praena, J., Quesada, J.M., Riego, A., Robles, M.S., Roman, F., Rubbia, C., Sabaté-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Tain, J.L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M.J., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Wright, T., and Žugec, P.
Published: 2014
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17. Neutron Capture Reactions on Fe and Ni Isotopes for the Astrophysical s-process

Author: Lederer, C., Giubrone, G., Massimi, C., Žugec, P., Barbagallo, M., Colonna, N., Domingo-Pardo, C., Guerrero, C., Gunsing, F., Käppeler, F., Tain, J.L., Altstadt, S., Andrzejewski, J., Audouin, L., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M.A., Diakaki, M., Duran, I., Dressler, R., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A.R., Gómez-Hornillos, M.B., Gonçalves, I.F., González-Romero, E., Griesmayer, E., Gurusamy, P., Jenkins, D.G., Jericha, E., Kadi, Y., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Korschinek, G., Krtička, M., Kroll, J., Langer, C., Leeb, H., Leong, L.S., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Mastinu, P.F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P.M., Mingrone, F., Mirea, M., Mondelaers, W., Paradela, C., Pavlik, A., Perkowski, J., Pignatari, M., Plompen, A., Praena, J., Quesada, J.M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Schumann, D., Tagliente, G., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M.J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., and Wright, T.J.
Published: 2014
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18. Measurement of the angular distribution of fission fragments using a PPAC assembly at CERN n_TOF

Author: Tarrío, D., Leong, L.S., Audouin, L., Duran, I., Paradela, C., Tassan-Got, L., Le Naour, C., Bacri, C.O., Petitbon, V., Mottier, J., Caamaño, M., Altstadt, S., Andrzejewski, J., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M.A., Diakaki, M., Domingo-Pardo, C., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A.R., Giubrone, G., Gómez-Hornillos, M.B., Gonçalves, I.F., González-Romero, E., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Jenkins, D.G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Koehler, P., Kokkoris, M., Krtička, M., Kroll, J., Langer, C., Lederer, C., Leeb, H., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P.F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P.M., Mingrone, F., Mirea, M., Mondalaers, W., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J.M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J.L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M.J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., Wright, T.J., and Žugec, P.
Published: 2014
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19. Zr 92 (n,g) and (n,tot) measurements at the GELINA and n_TOF facilities

Author: Tagliente G., Kopecky S., Heyse J., Krticka M., Massimi C., Mengoni A., Milazzo P. M., Plompen A. J. M., Schillebeeckx P., Valenta S., Wynants R., Altstadt S., Andrzejewski J., Audouin L., Becares V., Barbagallo M., Becvar F., Belloni F., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calvino F., Calviani M., Cano-Ott D., Carrapico C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortes G., Cortes-Giraldo M. A., Cristallo S., Diakaki M., Domingo-Pardo C., Dressler R., Duran I., Eleftheriadis C., Ferrari A., Fraval K., Furman V., Gobel K., Gomez-Hornillos M. B., Ganesan S., Garcia A. R., Giubrone G., Goncalves I. F., Gonzalez-Romero E., Goverdovski A., Griesmayer E., Guerrero C., Gunsing F., Heftrich T., Hernandez-Prieto A., Jericha E., Kappeler F., Kadi Y., Karadimos D., Katabuchi T., Ketlerov V., Khryachkov V., Kivel N., Kokkoris M., Kroll J., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Leong L. S., Losito R., Lugaro M., Mallick A., Manousos A., Marganiec J., Martinez T., Mastinu P., Mastromarco M., Mendoza E., Mingrone F., Mirea M., Paradela C., Pavlik A., Perkowski J., Praena J., Quesada J. M., Rauscher T., Reifarth R., Riego-Perez A., Robles M., Rubbia C., Ryan J. A., Sabate-Gilarte M., Sarmento R., Saxena A., Schmidt S., Schumann D., Sedyshev P., Tain J. L., Tarifeno-Saldivia A., Tarrio D., Tassan-Got L., Tsinganis A., Vannini G., Variale V., Vaz P., Ventura A., Vermeulen M. J., Vescovi D., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiss C., Wright T., Zugec P., Tagliente G., Kopecky S., Heyse J., Krticka M., Massimi C., Mengoni A., Milazzo P.M., Plompen A.J.M., Schillebeeckx P., Valenta S., Wynants R., Altstadt S., Andrzejewski J., Audouin L., Becares V., Barbagallo M., Becvar F., Belloni F., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calvino F., Calviani M., Cano-Ott D., Carrapico C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortes G., Cortes-Giraldo M.A., Cristallo S., Diakaki M., Domingo-Pardo C., Dressler R., Duran I., Eleftheriadis C., Ferrari A., Fraval K., Furman V., Gobel K., Gomez-Hornillos M.B., Ganesan S., Garcia A.R., Giubrone G., Goncalves I.F., Gonzalez-Romero E., Goverdovski A., Griesmayer E., Guerrero C., Gunsing F., Heftrich T., Hernandez-Prieto A., Jericha E., Kappeler F., Kadi Y., Karadimos D., Katabuchi T., Ketlerov V., Khryachkov V., Kivel N., Kokkoris M., Kroll J., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Leong L.S., Losito R., Lugaro M., Mallick A., Manousos A., Marganiec J., Martinez T., Mastinu P., Mastromarco M., Mendoza E., Mingrone F., Mirea M., Paradela C., Pavlik A., Perkowski J., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riego-Perez A., Robles M., Rubbia C., Ryan J.A., Sabate-Gilarte M., Sarmento R., Saxena A., Schmidt S., Schumann D., Sedyshev P., Tain J.L., Tarifeno-Saldivia A., Tarrio D., Tassan-Got L., Tsinganis A., Vannini G., Variale V., Vaz P., Ventura A., Vermeulen M.J., Vescovi D., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiss C., Wright T., and Zugec P.
Subjects: n_TOF, s process, Zr
Published: 2022

20. Measurement of the α ratio and (n,γ) cross section of U 235 from 0.2 to 200 eV at n_TOF

Author: Balibrea-Correa J., Mendoza E., Cano-Ott D., Gonzalez E., Capote R., Krticka M., Altstadt S., Andrzejewski J., Audouin L., Becares V., Barbagallo M., Becvar F., Belloni F., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calviani M., Calvino F., Carrapico C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortes G., Cortes-Giraldo M. A., Diakaki M., Domingo-Pardo C., Dressler R., Duran I., Eleftheriadis C., Ferrari A., Fraval K., Furman V., Gobel K., Gomez-Hornillos M. B., Ganesan S., Garcia A. R., Giubrone G., Goncalves I. F., Goverdovski A., Griesmayer E., Guerrero C., Gunsing F., Heftrich T., Hernandez-Prieto A., Heyse J., Jenkins D. G., Jericha E., Kappeler F., Kadi Y., Karadimos D., Katabuchi T., Ketlerov V., Khryachkov V., Kivel N., Koehler P., Kokkoris M., Kroll J., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Leong L. S., Lerendegui-Marco J., Losito R., Mallick A., Manousos A., Marganiec J., Martinez T., Massimi C., Mastinu P., Mastromarco M., Mengoni A., Milazzo P. M., Mingrone F., Mirea M., Mondelaers W., Paradela C., Pavlik A., Perkowski J., Plompen A. J. M., Praena J., Quesada J. M., Rauscher T., Reifarth R., Riego-Perez A., Robles M., Rubbia C., Ryan J. A., Sabate-Gilarte M., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Sedyshev P., Tagliente G., Tain J. L., Tarifeno-Saldivia A., Tarrio D., Tassan-Got L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Vermeulen M. J., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiss C., Wright T., Zugec P., Balibrea-Correa, J., Mendoza, E., Cano-Ott, D., Gonzalez, E., Capote, R., Krticka, M., Altstadt, S., Andrzejewski, J., Audouin, L., Becares, V., Barbagallo, M., Becvar, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calvino, F., Carrapico, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortes, G., Cortes-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Dressler, R., Duran, I., Eleftheriadis, C., Ferrari, A., Fraval, K., Furman, V., Gobel, K., Gomez-Hornillos, M. B., Ganesan, S., Garcia, A. R., Giubrone, G., Goncalves, I. F., Goverdovski, A., Griesmayer, E., Guerrero, C., Gunsing, F., Heftrich, T., Hernandez-Prieto, A., Heyse, J., Jenkins, D. G., Jericha, E., Kappeler, F., Kadi, Y., Karadimos, D., Katabuchi, T., Ketlerov, V., Khryachkov, V., Kivel, N., Koehler, P., Kokkoris, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Lerendegui-Marco, J., Losito, R., Mallick, A., Manousos, A., Marganiec, J., Martinez, T., Massimi, C., Mastinu, P., Mastromarco, M., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondelaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A. J. M., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Rubbia, C., Ryan, J. A., Sabate-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Sedyshev, P., Tagliente, G., Tain, J. L., Tarifeno-Saldivia, A., Tarrio, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., Zugec, P., Balibrea-Correa J., Mendoza E., Cano-Ott D., Gonzalez E., Capote R., Krticka M., Altstadt S., Andrzejewski J., Audouin L., Becares V., Barbagallo M., Becvar F., Belloni F., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calviani M., Calvino F., Carrapico C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortes G., Cortes-Giraldo M.A., Diakaki M., Domingo-Pardo C., Dressler R., Duran I., Eleftheriadis C., Ferrari A., Fraval K., Furman V., Gobel K., Gomez-Hornillos M.B., Ganesan S., Garcia A.R., Giubrone G., Goncalves I.F., Goverdovski A., Griesmayer E., Guerrero C., Gunsing F., Heftrich T., Hernandez-Prieto A., Heyse J., Jenkins D.G., Jericha E., Kappeler F., Kadi Y., Karadimos D., Katabuchi T., Ketlerov V., Khryachkov V., Kivel N., Koehler P., Kokkoris M., Kroll J., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Leong L.S., Lerendegui-Marco J., Losito R., Mallick A., Manousos A., Marganiec J., Martinez T., Massimi C., Mastinu P., Mastromarco M., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondelaers W., Paradela C., Pavlik A., Perkowski J., Plompen A.J.M., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riego-Perez A., Robles M., Rubbia C., Ryan J.A., Sabate-Gilarte M., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Sedyshev P., Tagliente G., Tain J.L., Tarifeno-Saldivia A., Tarrio D., Tassan-Got L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Vermeulen M.J., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiss C., Wright T., and Zugec P.
Subjects: 235U, neutron capture, fission, n_TOF
Abstract: We measured the neutron capture-to-fission cross-section ratio (α ratio) and the capture cross section of U235 between 0.2 and 200 eV at the n_TOF facility at CERN. The simultaneous measurement of neutron-induced capture and fission rates was performed by means of the n_TOF BaF2 Total Absorption Calorimeter (TAC), used for detection of γ rays, in combination with a set of micromegas detectors used as fission tagging detectors. The energy dependence of the capture cross section was obtained with help of the Li6(n,t) standard reaction determining the n_TOF neutron fluence; the well-known integral of the U235(n,f) cross section between 7.8 and 11 eV was then used for its absolute normalization. The α ratio, obtained with slightly higher statistical fluctuations, was determined directly, without need for any reference cross section. To perform the analysis of this measurement we developed a new methodology to correct the experimentally observed effect that the probabilities of detecting a fission reaction in the TAC and the micromegas detectors are not independent. The results of this work have been used in a new evaluation of U235 performed within the scope of the Collaborative International Evaluated Library Organisation (CIELO) Project, and are consistent with the ENDF/B-VIII.0 and JEFF-3.3 capture cross sections below 4 eV and above 100 eV. However, the measured capture cross section is on average 10% larger between 4 and 100 eV.
Published: 2020

21. $^{92}$Zr($n,\gamma$) and ($n$,tot) measurements at the GELINA and n_TOF facilities

Author: Tagliente, G., Kopecky, S., Heyse, J., Krtička, M., Massimi, C., Mengoni, A., Milazzo, P.M., Plompen, A.J.M., Schillebeeckx, P., Valenta, S., Wynants, R., Altstadt, S., Andrzejewski, J., Audouin, L., Bécares, V., Barbagallo, M., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Calviani, M., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M.A., Cristallo, S., Diakaki, M., Domingo-Pardo, C., Dressler, R., Durán, I., Eleftheriadis, C., Ferrari, A., Fraval, K., Furman, V., Göbel, K., Gómez-Hornillos, M.B., Ganesan, S., García, A.R., Giubrone, G., Gonçalves, I.F., González-Romero, E., Goverdovski, A., Griesmayer, E., Guerrero, C., Gunsing, F., Heftrich, T., Hernández-Prieto, A., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Katabuchi, T., Ketlerov, V., Khryachkov, V., Kivel, N., Kokkoris, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L.S., Losito, R., Lugaro, M., Mallick, A., Manousos, A., Marganiec, J., Martínez, T., Mastinu, P., Mastromarco, M., Mendoza, E., Mingrone, F., Mirea, M., Paradela, C., Pavlik, A., Perkowski, J., Praena, J., Quesada, J.M., Rauscher, T., Reifarth, R., Riego-Perez, A., Tallaj, Amélie, Rubbia, C., Ryan, J.A., Sabaté-Gilarte, M., Sarmento, R., Saxena, A., Schmidt, S., Schumann, D., Sedyshev, P., Tain, J.L., Tarifeño-Saldivia, A., Tarrío, D., Tassan-Got, L., Tsinganis, A., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M.J., Vescovi, D., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., Žugec, P., Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and n_TOF
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: International audience; Background: Stellar nucleosynthesis of elements heavier than iron is driven by neutron capture processes. 92Zris positioned at a strategic point along the slow nucleosynthesis path, given its proximity to the neutron magicnumber N = 50 and its position at the matching region between the weak and main slow processes.Purpose: In parallel with recent improved astronomical data, the extraction of accurate Maxwellian averagedcross sections (MACSs) derived from a more complete and accurate set of resonance parameters should allowfor a better understanding of the stellar conditions at which nucleosynthesis takes place.Methods: Transmission and capture cross section measurements using enriched 92Zr metallic samples wereperformed at the time-of flight facilities GELINA of JRC-Geel (BE) and n_TOF of CERN (CH). The neutronbeam passing through the samples was investigated in transmission measurements at GELINA using a Li-glassscintillator. The γ rays emitted during the neutron capture reactions were detected by C6D6 detectors at bothGELINA and n_TOF.Results: Resonance parameters of individual resonances up to 81 keV were extracted from a combined resonanceshape analysis of experimental transmissions and capture yields. For the majority of the resonances the paritywas determined from an analysis of the transmission data obtained with different sample thicknesses. Averageresonance parameters were calculated.Conclusions: Maxwellian averaged cross sections were extracted from resonances observed up to 81 keV. TheMACS for kT = 30 keV is fully consistent with experimental data reported in the literature. The MACSs forkT 15 keV are in good agreement with those derived from the ENDF/B-VIII.0 library and recommendedin the KADONIS database. For kT higher than 30 keV differences are observed. A comparison with MACSsobtained with the cross sections recommended in the JEFF-3.3 and JENDL-4.0 libraries shows discrepancieseven for kT 15 keV.
Published: 2022

22. $^{92}$Zr (n,y) and (n,tot) measurements at the GELINA and n_TOF facilities

Author: n_TOF Collaboration, Tagliente, G., Kopecky, S., Heyse, J., Krticka, M., Massimi, C., Mengoni, A., Milazzo, P. M., Plompen, A. J. M., Schillebeeckx, P., Valenta, S., Wynants, R., Altstadt, S., Andrzejewski, J., Audouin, L., Bécares, V., Barbagallo, M., Becvár, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Calviani, M., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Cristallo, S., Diakaki, M., Domingo-Pardo, C., Dressler, R., Durán, I., Eleftheriadis, C., Ferrari, A., Fraval, K., Furman, V., Göbel, K., Gómez-Hornillos, M. B., Ganesan, S., García, A. R., Giubrone, G., Gonçalves, I. F., González-Romero, E., Goverdovski, A., Griesmayer, E., Guerrero, C., Gunsing, F., Heftrich, T., Hernández-Prieto, A., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Katabuchi, T., Ketlerov, V., Khryachkov, V., Kivel, N., Kokkoris, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Losito, R., Lugaro, M., Mallick, A., Manousos, A., Marganiec, J., Martínez, T., Mastinu, P., Mastromarco, M., Mendoza, E., Mingrone, F., Mirea, M., Paradela, C., Pavlik, A., Perkowski, J., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Rubbia, C., Ryan, J. A., Sabaté-Gilarte, M., Sarmento, R., Saxena, A., Schmidt, S., Schumann, D., Sedyshev, P., Tain, J. L., Tarifeño-Saldivia, A., Tarrío, D., Tassan-Got, L., Tsinganis, A., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Vescovi, D., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., and Žugec, P.
Subjects: Physics, Astrophysics::High Energy Astrophysical Phenomena, ddc:530
Abstract: Background: Stellar nucleosynthesis of elements heavier than iron is driven by neutron capture processes. $^{92}$ is positioned at a strategic point along the slow nucleosynthesis path, given its proximity to the neutron magic number N=50 and its position at the matching region between the weak and main slow processes. Purpose: In parallel with recent improved astronomical data, the extraction of accurate Maxwellian averaged cross sections (MACSs) derived from a more complete and accurate set of resonance parameters should allow for a better understanding of the stellar conditions at which nucleosynthesis takes place. Methods: Transmission and capture cross section measurements using enriched $^{92}$Zr metallic samples were performed at the time-of flight facilities GELINA of JRC-Geel (BE) and n_TOF of CERN (CH). The neutron beam passing through the samples was investigated in transmission measurements at GELINA using a Li-glass scintillator. The γ rays emitted during the neutron capture reactions were detected by C$_{6}$D$_{6}$ detectors at both GELINA and n_TOF. Results: Resonance parameters of individual resonances up to 81 keV were extracted from a combined resonance shape analysis of experimental transmissions and capture yields. For the majority of the resonances the parity was determined from an analysis of the transmission data obtained with different sample thicknesses. Average resonance parameters were calculated. Conclusions: Maxwellian averaged cross sections were extracted from resonances observed up to 81 keV. The MACS for kT=30keV is fully consistent with experimental data reported in the literature. The MACSs for kT≲15keV are in good agreement with those derived from the ENDF/B-VIII.0 library and recommended in the KADoNiS database. For kT higher than 30 keV differences are observed. A comparison with MACSs obtained with the cross sections recommended in the JEFF-3.3 and JENDL 4.0 libraries shows discrepancies even for kT≲15keV.
Published: 2022
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23. Zr-92(n, gamma) and (n,tot) measurements at the GELINA and n_TOF facilities

Author: Tagliente, G., Kopecky, S., Heyse, J., Massimi, C., Mengoni, A., Milazzo, P. M., Plompen, A. J. M., Schillebeeckx, P., Valenta, S., Wynants, R., Altstadt, S., Andrzejewski, J., Audouin, L., Becares, V., Barbagallo, M., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calvino, F., Calviani, M., Cano-Ott, D., Carrapico, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortes, G., Cortes-Giraldo, M. A., Cristallo, S., Diakaki, M., Domingo-Pardo, C., Dressler, R., Duran, I., Eleftheriadis, C., Ferrari, A., Fraval, K., Furman, V., Göbel, K., Gomez-Hornillos, M. B., Ganesan, S., Garcia, A. R., Giubrone, G., Goncalves, I. F., Gonzalez-Romero, E., Goverdovski, A., Griesmayer, E., Guerrero, C., Gunsing, F., Heftrich, T., Hernandez-Prieto, A., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Katabuchi, T., Ketlerov, V., Khryachkov, V., Kivel, N., Kokkoris, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Losito, R., Lugaro, M., Mallick, A., Manousos, A., Marganiec, J., Martinez, T., Mastinu, P., Mastromarco, M., Mendoza, E., Mingrone, F., Mirea, M., Paradela, C., Pavlik, A., Perkowski, J., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Rubbia, C., Ryan, J. A., Sabate-Gilarte, M., Sarmento, R., Saxena, A., Schmidt, S., Schumann, D., Sedyshev, P., Tain, J. L., Tarifeno-Saldivia, A., Tarrio, D., Tassan-Got, L., Tsinganis, A., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Vescovi, D., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., Zugec, P., and Krtička, M.
Abstract: Background: Stellar nucleosynthesis of elements heavier than iron is driven by neutron capture processes. 92Zr is positioned at a strategic point along the slow nucleosynthesis path, given its proximity to the neutron magic number N=50 and its position at the matching region between the weak and main slow processes. Purpose: In parallel with recent improved astronomical data, the extraction of accurate Maxwellian averaged cross sections (MACSs) derived from a more complete and accurate set of resonance parameters should allow for a better understanding of the stellar conditions at which nucleosynthesis takes place. Methods: Transmission and capture cross section measurements using enriched 92Zr metallic samples were performed at the time-of flight facilities GELINA of JRC-Geel (BE) and n_TOF of CERN (CH). The neutron beam passing through the samples was investigated in transmission measurements at GELINA using a Li-glass scintillator. The γ rays emitted during the neutron capture reactions were detected by C6D6 detectors at both GELINA and n_TOF. Results: Resonance parameters of individual resonances up to 81 keV were extracted from a combined resonance shape analysis of experimental transmissions and capture yields. For the majority of the resonances the parity was determined from an analysis of the transmission data obtained with different sample thicknesses. Average resonance parameters were calculated. Conclusions: Maxwellian averaged cross sections were extracted from resonances observed up to 81 keV. The MACS for kT=30keV is fully consistent with experimental data reported in the literature. The MACSs for kT≲15keV are in good agreement with those derived from the ENDF/B-VIII.0 library and recommended in the KADoNiS database. For kT higher than 30 keV differences are observed. A comparison with MACSs obtained with the cross sections recommended in the JEFF-3.3 and JENDL-4.0 libraries shows discrepancies even for kT≲15keV.
Published: 2022

24. Neutron measurements for advanced nuclear systems: The n_TOF project at CERN

Author: Colonna, N., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M.A., Diakaki, M., Dillmann, I., Domingo-Pardo, C., Duran, I., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., Giomataris, I., Giubrone, G., Gómez-Hornillos, M.B., Gonçalves, I.F., González-Romero, E., Gramegna, F., Guerrero, C., Gunsing, F., Harrisopulos, S., Heil, M., Ioannides, K., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Krtička, M., Lebbos, E., Lederer, C., Leeb, H., Losito, R., Lozano, M., Marganiec, J., Marrone, S., Martinez, T., Massimi, C., Mastinu, P.F., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P.M., Mosconi, M., Nolte, R., Papaevangelou, T., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Plompen, A., Praena, J., Quesada, J.M., Rauscher, T., Reifarth, R., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J.L., Tarrìo, D., Tassan-Got, L., Tlustos, L., Tsinganis, A., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Vykydal, Z., Wallner, A., and Weiß, C.
Published: 2011
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25. Astrophysics at n_TOF facility

Author: G. Tagliente, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvar, F. Belloni, E. Berthoumieux, S. Bisterzo, F. Calvino, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapico, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillman, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marques, K. Fujii, W. Furman, R. Gallino, I. Goncalves, E. Gonzalez-Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krticka, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, A. Mengoni, P. M.Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak
Subjects: Astrophysics, r-process., Atomic physics. Constitution and properties of matter, QC170-197
Abstract: The neutron time of flight (n_TOF) facility at CERN is a neutron spallation source, its white neutron energy spectrum ranges from thermal to several GeV, covering the full energy range of interest for nuclear astrophysics, in particular for measurements of the neutron capture cross-section required in s-process nucleosynthesis. This contribution gives an overview on the astrophysical program made at n_TOF facility, the results and the implications will be considered.
Published: 2009
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26. High-accuracy determination of the neutron flux at n_TOF

Author: Barbagallo, M., Guerrero, C., Tsinganis, A., Tarrío, D., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Bécares, V., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Duran, I., Dressler, R., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Göbel, K., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Gunsing, F., Gurusamy, P., Hernández-Prieto, A., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Krtička, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Losito, R., Manousos, A., Marganiec, J., Martınez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Papaevangelou, T., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sabate-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Steinegger, P., Tagliente, G., Tain, J. L., Tassan-Got, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., Wright, T., and Žugec, P.
Published: 2013
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27. Neutron cross-sections for next generation reactors: New data from n_TOF

Author: Colonna, N., Abbondanno, U., Aerts, G., Álvarez, H., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Becvar, F., Berthoumieux, E., Calviani, M., Calviño, F., Cano-Ott, D., Capote, R., Carrillo de Albornoz, A., Cennini, P., Chepel, V., Chiaveri, E., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillman, I., Dolfini, R., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Frais-Koelbl, H., Fujii, K., Furman, W., Goncalves, I., González-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Haas, B., Haight, R., Heil, M., Herrera-Martinez, A., Igashira, M., Isaev, S., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Karamanis, D., Kerveno, M., Ketlerov, V., Koehler, P., Konovalov, V., Kossionides, E., Krticka, M., Lampoudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., Martínez, T., Massimi, C., Mastinu, P., Mengoni, A., Milazzo, P.M., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., O’Brien, S., Oshima, M., Pancin, J., Papachristodoulou, C., Papadopoulos, C., Paradela, C., Patronis, N., Pavlik, A., Pavlopoulos, P., Perrot, L., Pigni, M.T., Plag, R., Plompen, A., Plukis, A., Poch, A., Pretel, C., Quesada, J., Rauscher, T., Reifarth, R., Rosetti, M., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Sarchiapone, L., Savvidis, I., Stephan, C., Tagliente, G., Tain, J.L., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., Vicente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wendler, H., Wiescher, M., and Wisshak, K.
Published: 2010
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28. High precision measurement of the radiative capture cross section of 238U at the n_TOF CERN facility

Author: Mingrone F., Altstadt S., Andrzejewski J., Audouin L., Bécares V., Barbagallo M., Bečvář F., Belloni F., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calviño F., Calviani M., Cano-Ott D., Carrapiço C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortés G., Cortés-Giraldo M.A., Diakaki M., Domingo-Pardo C., Dressler R., Durán I., Eleftheriadis C., Ferrari A., Fraval K., Furman V., Göbel K., Gómez-Hornillos M.B., Ganesan S., García A.R., Giubrone G., Gonçalves I.F., González E., Goverdovski A., Griesmayer E., Guerrero C., Gunsing F., Heftrich T., Hernández-Prieto A., Heyse J., Jenkins D.G., Jericha E., Käppeler F., Kadi Y., Karadimos D., Katabuchi T., Ketlerov V., Khryachkov V., Kivel N., Koehler P., Kokkoris M., Kroll J., Krtička M., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Leong L.S., Lerendegui-Marco J., Losito R., Mallick A., Manousos A., Marganiec J., Martínez T., Massimi C., Mastinu P., Mastromarco M., Mendoza E., Mengoni A., Milazzo P.M., Mirea M., Mondelaers W., Paradela C., Pavlik A., Perkowski J., Plompen A.J.M., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riego-Perez A., Robles M., Rubbia C., Ryan J.A., Sabaté-Gilarte M., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Sedyshev P., Tagliente G., Tain J.L., Tarifeño-Saldivia A., Tarrío D., Tassan-Got L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Vermeulen M.J., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiss C., Wright T., and Žugec P.
Subjects: Physics, QC1-999
Abstract: The importance of improving the accuracy on the capture cross-section of 238U has been addressed by the Nuclear Energy Agency, since its uncertainty significantly affects the uncertainties of key design parameters for both fast and thermal nuclear reactors. Within the 7th framework programme ANDES of the European Commission three different measurements have been carried out with the aim of providing the 238U(n,γ) cross-section with an accuracy which varies from 1 to 5%, depending on the energy range. Hereby the final results of the measurement performed at the n_TOF CERN facility in a wide energy range from 1 eV to 700 keV will be presented.
Published: 2017
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29. 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: Balibrea-Correa J., Mendoza E., Cano-Ott D., Krtička M., Altstadt S., Andrzejewski J., Audouin L., Bécares V., Barbagallo M., Bečvář F., Belloni F., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calviño F., Calviani M., Carrapiço C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortés G., Cortés-Giraldo M.A., Diakaki M., Domingo-Pardo C., Dressler R., Durán I., Eleftheriadis C., Ferrari A., Fraval K., Furman V., Göbel K., Guerrero C., Gómez-Hornillos M.B., Ganesan S., García A.R., Giubrone G., Gonçalves I.F., González E., Goverdovski A., Griesmayer E., Gunsing F., Heftrich T., Heinitz S., Hernández-Prieto A., Heyse J., Jenkins D.G., Jericha E., Käppeler F., Kadi Y., Karadimos D., Katabuchi T., Ketlerov V., Khryachkov V., Kivel N., Koehler P., Kokkoris M., Kroll J., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Leong L.S., Lerendegui-Marco J., Licata M., Losito R., Mallick A., Manousos A., Marganiec J., Martínez T., Massimi C., Mastinu P., Mastromarco M., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondelaers W., Paradela C., Pavlik A., Perkowski J., Plompen A.J.M., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riego-Perez A., Robles M., Rubbia C., Ryan J.A., Sabaté-Gilarte M., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Sedyshev P., Tagliente G., Tain J.L., Tarifeño-Saldivia A., Tarrío D., Tassan-Got L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Vermeulen M.J., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiss C., Wright T., and Žugec P.
Subjects: Physics, QC1-999
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
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30. High accuracy 234U(n,f) cross section in the resonance energy region

Author: Leal-Cidoncha E., Durán I., Paradela C., Tassan-Got L., Audouin L., Leal L.C., Naour C. Le, Noguere G., Tarrío D., Leong L.S., Altstadt S., Andrzejewski J., Barbagallo M., Bécares V., Bečvář F., Belloni F., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calviani M., Calviño F., Cano-Ott D., Carrapiço C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortés G., Cortés-Giraldo M.A., Diakaki M., Domingo-Pardo C., Dressler R., Eleftheriadis C., Ferrari A., Fraval K., Ganesan S., García A.R., Giubrone G., Gómez-Hornillos M.B., Gonçalves I.F., González-Romero E., Griesmayer E., Guerrero C., Gunsing F., Gurusamy P., Hernández-Prieto A., Jenkins D.G., Jericha E., Kadi Y., Käppeler F., Karadimos D., Kivel N., Kokkoris M., Krtička M., Kroll J., Lampoudis C., Langer C., Lederer C., Leeb H., Losito R., Mallick A., Manousos A., Marganiec J., Martínez T., Massimi C., Mastinu P.F., Mastromarco M., Meaze M., Mendoza E., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondelaers W., Pavlik A., Perkowski J., Plompen A., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riego A., Robles M.S., Roman F., Rubbia C., Sabaté-Gilarte M., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Tagliente G., Tain J.L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Versaci R., Vermeulen M.J., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiß C., Wright T., and Žugec P.
Subjects: Physics, QC1-999
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
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31. Measurement of the 241Am neutron capture cross section at the n_TOF facility at CERN

Author: Mendoza E., Cano-Ott D., Altstadt S., Andriamonje S., Andrzejewski J., Audouin L., Balibrea J., Bécares V., Barbagallo M., Bečvář F., Belloni F., Berthier B., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calviño F., Calviani M., Carrapiço C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortés G., Cortés-Giraldo M.A., Diakaki M., Dillmann I., Domingo-Pardo C., Durán I., Dzysiuk N., Eleftheriadis C., Fernández-Ordóñez M., Ferrari A., Fraval K., Furman V., Gómez-Hornillos M.B., Ganesan S., García A.R., Giubrone G., Gonçalves I.F., González E., Goverdovski A., Gramegna F., Griesmayer E., Guerrero C., Gunsing F., Gurusamy P., Heftrich T., Heinitz S., Hernández-Prieto A., Heyse J., Jenkins D.G., Jericha E., Käppeler F., Kadi Y., Karadimos D., Katabuchi T., Ketlerov V., Khryachkov V., Koehler P., Kokkoris M., Kroll J., Krtička M., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Leong L.S., Lerendegui-Marco J., Licata M., Losito R., Manousos A., Marganiec J., Martínez T., Massimi C., Mastinu P., Mastromarco M., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondelaers W., Paradela C., Pavlik A., Perkowski J., Plompen A.J.M., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riego-Perez A., Robles M., Roman F., Rubbia C., Ryan J.A., Sabaté-Gilarte M., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Sedyshev P., Tagliente G., Tain J.L., Tarifeño-Saldivia A., Tarrío D., Tassan-Got L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Vermeulen M.J., Versaci R., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiss C., Wright T., and Žugec P.
Subjects: Physics, QC1-999
Abstract: New neutron cross section measurements of minor actinides have been performed recently in order to reduce the uncertainties in the evaluated data, which is important for the design of advanced nuclear reactors and, in particular, for determining their performance in the transmutation of nuclear waste. We have measured the 241Am(n,γ) cross section at the n_TOF facility between 0.2 eV and 10 keV with a BaF2 Total Absorption Calorimeter, and the analysis of the measurement has been recently concluded. Our results are in reasonable agreement below 20 eV with the ones published by C. Lampoudis et al. in 2013, who reported a 22% larger capture cross section up to 110 eV compared to experimental and evaluated data published before. Our results also indicate that the 241Am(n,γ) cross section is underestimated in the present evaluated libraries between 20 eV and 2 keV by 25%, on average, and up to 35% for certain evaluations and energy ranges.
Published: 2017
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32. Dissemination of data measured at the CERN n_TOF facility

Author: Dupont E., Otuka N., Cabellos O., Aberle O., Aerts G., Altstadt S., Alvarez H., Alvarez-Velarde F., Andriamonje S., Andrzejewski J., Audouin L., Bacak M., Badurek G., Balibrea J., Barbagallo M., Barros S., Baumann P., Bécares V., Bečvář F., Beinrucker C., Belloni F., Berthier B., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brown A., Brugger M., Caamaño M., Calviani M., Calviño F., Cano-Ott D., Capote R., Cardella R., Carrapiço C., Casanovas A., Castelluccio D.M., Cennini P., Cerutti F., Chen Y.H., Chiaveri E., Chin M., Colonna N., Cortés G., Cortés-Giraldo M.A., Cosentino L., Couture A., Cox J., Damone L.A., David S., Deo K., Diakaki M., Dillmann I., Domingo-Pardo C., Dressler R., Dridi W., Duran I., Eleftheriadis C., Embid-Segura M., Fernández-Domínguez B., Ferrant L., Ferrari A., Ferreira P., Finocchiaro P., Fraval K., Frost R.J.W., Fujii K., Furman W., Ganesan S., Garcia A.R., Gawlik A., Gheorghe I., Gilardoni S., Giubrone G., Glodariu T., Göbel K., Gomez-Hornillos M.B., Goncalves I.F., Gonzalez-Romero E., Goverdovski A., Gramegna F., Griesmayer E., Guerrero C., Gunsing F., Gurusamy P., Haight R., Harada H., Heftrich T., Heil M., Heinitz S., Hernández-Prieto A., Heyse J., Igashira M., Isaev S., Jenkins D.G., Jericha E., Kadi Y., Kaeppeler F., Kalamara A., Karadimos D., Karamanis D., Katabuchi T., Kavrigin P., Kerveno M., Ketlerov V., Khryachkov V., Kimura A., Kivel N., Kokkoris M., Konovalov V., Krtička M., Kroll J., Kurtulgil D., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Naour C. Le, Lerendegui-Marco J., Leong L.S., Licata M., Meo S. Lo, Lonsdale S.J., Losito R., Lozano M., Macina D., Manousos A., Marganiec J., Martinez T., Marrone S., Masi A., Massimi C., Mastinu P., Mastromarco M., Matteucci F., Maugeri E.A., Mazzone A., Mendoza E., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondelaers W., Montesano S., Moreau C., Mosconi M., Musumarra A., Negret A., Nolte R., O’Brien S., Oprea A., Palomo-Pinto F.R., Pancin J., Paradela C., Patronis N., Pavlik A., Pavlopoulos P., Perkowski J., Perrot L., Pigni M.T., Plag R., Plompen A., Plukis L., Poch A., Porras I., Praena J., Pretel C., Quesada J.M., Radeck D., Rajeev K., Rauscher T., Reifarth R., Riego A., Robles M., Roman F., Rout P.C., Rudolf G., Rubbia C., Rullhusen P., Ryan J.A., Sabaté-Gilarte M., Salgado J., Santos C., Sarchiapone L., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Sedyshev P., Smith A.G., Sosnin N.V., Stamatopoulos A., Stephan C., Suryanarayana S.V., Tagliente G., Tain J.L., Tarifeño-Saldivia A., Tarrío D., Tassan-Got L., Tavora L., Terlizzi R., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Versaci R., Vermeulen M.J., Villamarin D., Vicente M.C., Vlachoudis V., Vlastou R., Voss F., Wallner A., Walter S., Ware T., Warren S., Weigand M., Weiß C., Wolf C., Wiesher M., Wisshak K., Woods P.J., Wright T., and Žugec P.
Subjects: Physics, QC1-999
Abstract: The n_TOF neutron time-of-flight facility at CERN is used for high quality nuclear data measurements from thermal energy up to hundreds of MeV. In line with the CERN open data policy, the n_TOF Collaboration takes actions to preserve its unique data, facilitate access to them in standardised format, and allow their re-use by a wide community in the fields of nuclear physics, nuclear astrophysics and various nuclear technologies. The present contribution briefly describes the n_TOF outcomes, as well as the status of dissemination and preservation of n_TOF final data in the international EXFOR library.
Published: 2017
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33. The 236U neutron capture cross-section measured at the n_TOF CERN facility

Author: Mastromarco M., Barbagallo M., Vermeulen M.J., Colonna N., Altstadt S., Andrzejewski J., Audouin L., Bécares V., Bečvář F., Belloni F., Berthoumieux E., Billowes J., Bosnar D., Brugger M., Calviño F., Calviani M., Cano-Ott D., Carrapiço C., Cerutti F., Chiaveri E., Chin M., Cortés G., Cortés-Giraldo M.A., Diakaki M., Domingo-Pardo C., Durán I., Dzysiuk N., Eleftheriadis C., Ferrari A., Fraval K., Furman V., Gómez-Hornillos M.B., Ganesan S., García A.R., Giubrone G., Gonçalves I.F., González E., Goverdovski A., Griesmayer E., Guerrero C., Gunsing F., Gurusamy P., Heftrich T., Heinitz S., Hernández-Prieto A., Heyse J., Jenkins D.G., Jericha E., Käppeler F., Kadi Y., Karadimos D., Katabuchi T., Ketlerov V., Khryachkov V., Koehler P., Kokkoris M., Kroll J., Krtička M., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Leong L.S., Lerendegui-Marco J., Licata M., Losito R., Manousos A., Marganiec J., Martínez T., Massimi C., Mastinu P., Mendoza E., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondelaers W., Paradela C., Pavlik A., Perkowski J., Plompen A.J.M., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riego-Perez A., Robles M., Roman F., Rubbia C., Ryan J.A., Sabaté-Gilarte M., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Sedyshev P., Tagliente G., Tain J.L., Tarifeño-Saldivia A., Tarrío D., Tassan-Got L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Versaci R., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiss C., Wright T., and Žugec P.
Subjects: Physics, QC1-999
Abstract: The 236U isotope plays an important role in nuclear systems, both for future and currently operating ones. The actual knowledge of the capture reaction of this isotope is satisfactory in the thermal region, but it is considered insufficient for Fast Reactor and ADS applications. For this reason the 236U(n, γ) reaction cross-section has been measured for the first time in the whole energy region from thermal energy up to 1 MeV at the n_TOF facility with two different detection systems: an array of C6D6 detectors, employing the total energy deposited method, and a FX1 total absorption calorimeter (TAC), made of 40 BaF2 crystals. The two n_TOF data sets agree with each other within the statistical uncertainty in the Resolved Resonance Region up to 800 eV, while sizable differences (up to ≃ 20%) are found relative to the current evaluated data libraries. Moreover two new resonances have been found in the n_TOF data. In the Unresolved Resonance Region up to 200 keV, the n_TOF results show a reasonable agreement with previous measurements and evaluated data.
Published: 2017
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34. The n_TOF Total Absorption Calorimeter for neutron capture measurements at CERN

Author: Guerrero, C., Abbondanno, U., Aerts, G., Álvarez, H., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Bečvář, F., Berthoumieux, E., Calviño, F., Calviani, M., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillmann, I., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Fujii, K., Furman, W., Goncalves, I., González-Romero, E., Gramegna, F., Gunsing, F., Haas, B., Haight, R., Heil, M., Herrera-Martinez, A., Igashira, M., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Kerveno, M., Koehler, P., Kossionides, E., Krtička, M., Lampoudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marrone, S., Martínez, T., Massimi, C., Mastinu, P., Mendoza, E., Mengoni, A., Milazzo, P.M., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., O’Brien, S., Pancin, J., Papachristodoulou, C., Papadopoulos, C., Paradela, C., Patronis, N., Pavlik, A., Pavlopoulos, P., Perrot, L., Pigni, M.T., Plag, R., Plompen, A., Plukis, A., Poch, A., Praena, J., Pretel, C., Quesada, J., Rauscher, T., Reifarth, R., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Santos, C., Sarchiapone, L., Savvidis, I., Stephan, C., Tagliente, G., Tain, J.L., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., Vicente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wiescher, M., and Wisshak, K.
Published: 2009
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35. Performance of the neutron time-of-flight facility n_TOF at CERN

Author: Guerrero, C., Tsinganis, A., Berthoumieux, E., Barbagallo, M., Belloni, F., Gunsing, F., Weiß, C., Chiaveri, E., Calviani, M., Vlachoudis, V., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Bécares, V., Bečvář, F., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Duran, I., Dressler, R., Dzysiuk, N., Eleftheriadis, C., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Göbel, K., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Griesmayer, E., Gurusamy, P., Hernández-Prieto, A., Gurusamy, P., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Krtička, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Papaevangelou, T., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sabate-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Steinegger, P., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M. J., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Wright, T., and Žugec, P.
Published: 2013
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36. Measurement of the neutron-induced fission cross-section of 241Am at the time-of-flight facility n_TOF

Author: Belloni, F., Calviani, M., Colonna, N., Mastinu, P., Milazzo, P. M., Abbondanno, U., Aerts, G., Álvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Audouin, L., Badurek, G., Barbagallo, M., Baumann, P., Bečvář, F., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Chepel, V., Chiaveri, E., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillmann, I., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrari, A., Ferreira-Marques, R., Fujii, K., Furman, W., Goncalves, I., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Guerrero, C., Gunsing, F., Haas, B., Haight, R., Heil, M., Herrera-Martinez, A., Igashira, M., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Karamanis, D., Kerveno, M., Koehler, P., Kossionides, E., Krtička, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marrone, S., Martínez, T., Massimi, C., Meaze, M. H., Mengoni, A., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., O’Brien, S., Papachristodoulou, C., Papadopoulos, C., Paradela, C., Patronis, N., Pavlik, A., Pavlopoulos, P., Perrot, L., Pigni, M. T., Plag, R., Plompen, A., Plukis, A., Poch, A., Praena, J., Pretel, C., Quesada, J., Rauscher, T., Reifarth, R., Rosetti, M., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Santos, C., Sarchiapone, L., Savvidis, I., Stephan, C., Tagliente, G., Tain, J. L., Tarrio, D., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., Vincente, M. C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wiescher, M., and Wisshak, K.
Published: 2013
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37. Simultaneous measurement of neutron-induced capture and fission reactions at CERN

Author: Guerrero, C., Berthoumieux, E., Cano-Ott, D., Mendoza, E., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Billowes, J., Brugger, M., Calviani, M., Calviño, F., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Dillmann, I., Domingo-Pardo, C., Duran, I., Eleftheriadis, C., Fernández-Ordóñez, M., Ferrari, A., Ganesan, S., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Griesmayer, E., Gunsing, F., Jenkins, D., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kroll, J., Krtička, M., Lebbos, E., Lederer, C., Leeb, H., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Marrone, S., Martinez, T., Massimi, C., Mastinu, P. F., Meaze, M., Mengoni, A., Milazzo, P. M., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeullen, M., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weiß, C., and Wright, T.
Published: 2012
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38. Measurement of the neutron-induced fission cross-section of 243Am relative to 235U from 0.5 to 20 MeV

Author: Belloni, F., Calviani, M., Colonna, N., Mastinu, P., Milazzo, P. M., Abbondanno, U., Aerts, G., Álvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Audouin, L., Badurek, G., Barbagallo, M., Baumann, P., Bečvář, F., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Chepel, V., Chiaveri, E., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillmann, I., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrari, A., Ferreira-Marques, R., Fujii, K., Furman, W., Goncalves, I., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Guerrero, C., Gunsing, F., Haas, B., Haight, R., Heil, M., Herrera-Martinez, A., Igashira, M., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Karamanis, D., Kerveno, M., Koehler, P., Kossionides, E., Krtička, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marrone, S., Martínez, T., Massimi, C., Meaze, M. H., Mengoni, A., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., O’Brien, S., Pancin, J., Papachristodoulou, C., Papadopoulos, C., Paradela, C., Patronis, N., Pavlik, A., Pavlopoulos, P., Perrot, L., Pigni, M. T., Plag, R., Plompen, A., Plukis, A., Poch, A., Praena, J., Pretel, C., Quesada, J., Rauscher, T., Reifarth, R., Rosetti, M., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Santos, C., Sarchiapone, L., Savvidis, I., Stephan, C., Tagliente, G., Tain, J. L., Tarrio, D., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., Vincente, M. C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wiescher, M., and Wisshak, K.
Published: 2011
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39. Neutron-induced fission cross-section of 233U in the energy range 0.5 < En < 20 MeV

Author: Belloni, F., Calviani, M., Colonna, N., Mastinu, P., Milazzo, P. M., Abbondanno, U., Aerts, G., Álvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Audouin, L., Badurek, G., Baumann, P., Bečvář, F., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Chepel, V., Chiaveri, E., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillmann, I., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrari, A., Ferreira-Marques, R., Fujii, K., Furman, W., Goncalves, I., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Guerrero, C., Gunsing, F., Haas, B., Haight, R., Heil, M., Herrera-Martinez, A., Igashira, M., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Karamanis, D., Kerveno, M., Koehler, P., Kossionides, E., Krtička, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marrone, S., Martınez, T., Massimi, C., Meaze, M. H., Mengoni, A., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., O’Brien, S., Pancin, J., Papachristodoulou, C., Papadopoulos, C., Paradela, C., Patronis, N., Pavlik, A., Pavlopoulos, P., Perrot, L., Pigni, M. T., Plag, R., Plompen, A., Plukis, A., Poch, A., Praena, J., Pretel, C., Quesada, J., Rauscher, T., Reifarth, R., Rosetti, M., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Santos, C., Sarchiapone, L., Savvidis, I., Stephan, C., Tagliente, G., Tain, J. L., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., Vincente, M. C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wiescher, M., Wisshak, K., and The n_TOF Collaboration
Published: 2011
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40. A fast ionization chamber for fission cross-section measurements at n_TOF

Author: Calviani, M., Cennini, P., Karadimos, D., Ketlerov, V., Konovalov, V., Furman, W., Goverdowski, A., Vlachoudis, V., and Zanini, L.
Published: 2008
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41. Fission Fragment Angular Distribution measurements of 235U and 238U at CERN n_TOF facility

Author: Leal-Cidoncha E., Durán I., Paradela C., Tarrío D., Leong L.S., Tassan-Got L., Audouin L., Altstadt S., Andrzejewski J., Barbagallo M., Bécares V., Bečvář F., Belloni F., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calviani M., Calviño F., Cano-Ott D., Carrapiço C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortés G., Cortés-Giraldo M.A., Diakaki M., Domingo-Pardo C., Dressler R., Dzysiuk N., Eleftheriadis C., Ferrari A., Fraval K., Ganesan S., García A.R., Giubrone G., Gómez-Hornillos M.B., Gonçalves I.F., González-Romero E., Griesmayer E., Guerrero C., Gunsing F., Gurusamy P., Hernández-Prieto A., Jenkins D.G., Jericha E., Kadi Y., Käppeler F., Karadimos D., Kivel N., Koehler P., Kokkoris M., Krtička M., Kroll J., Lampoudis C., Langer C., Lederer C., Leeb H., Lo Meo S., Losito R., Mallick A., Manousos A., Marganiec J., Martínez T., Massimi C., Mastinu P.F., Mastromarco M., Meaze M., Mendoza E., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondelaers W., Pavlik A., Perkowski J., Plompen A., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riego A., Robles M.S., Roman F., Rubbia C., Sabaté-Gilarte M., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Tagliente G., Tain J.L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Versaci R., Vermeulen M.J., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiß C., Wright T., and Žugec P.
Subjects: Physics, QC1-999
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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42. High accuracy 235U(n,f) data in the resonance energy region

Author: Paradela C., Duran I., Tassan-Got L., Audouin L., Berthier B., Isaev S., Le Naour C., Stephan C., Tarrío D., Abbondanno U., Aerts G., Álvarez-Pol H., Álvarez-Velarde F., Andriamonje S., Andrzejewski J., Badurek G., Baumann P., Becvar F., Berthoumieux E., Calviño F., Calviani M., Cano-Ott D., Capote R., Carrapiço C., Cennini P., Chepel V., Chiaveri E., Colonna N., Cortes G., Couture A., Cox J., Dahlfors M., David S., Dillmann I., Domingo-Pardo C., Dridi W., Eleftheriadis C., Embid-Segura M., Ferrant L., Ferrari A., Ferreira-Marques R., Fujii K., Furman W., Gonçalves I.F., Gonzalez-Romero E., Goverdovski A., Gramegna F., Guerrero C., Gunsing F., Haight R., Heil M., Igashira M., Jericha E., Kadi Y., Kaeppeler F., Karadimos D., Kerveno M., Ketlerov V., Koehler P., Konovalov V., Krticka M., Lampoudis C., Lederer C., Leeb H., Lindote A., Lukic S., Marganiec J., Martinez T., Marrone S., Massimi C., Mastinu P., Mengoni A., Milazzo P.M., Moreau C., Mosconi M., Pancin S, J., Pavlik A., Pavlopoulos P., Perrot L., Plag R., Plompen A., Plukis A., Poch A., Pretel C., Praena J., Quesada J., Rauscher T., Reifarth R., Rubbia C., Rudolf G., Rullhusen P., Salgado J., Santos C., Sarchiapone L., Savvidis I., Tagliente G., Tain J.L., Tavora L., Terlizzi R., Vaz P., Ventura A., Villamarin D., Vincente M.C., Vlachoudis V., Vlastou R., Voss F., Walter S., Weiss C., Wiesher M., and Wisshak K.
Subjects: Physics, QC1-999
Abstract: The 235U neutron-induced cross section is widely used as reference cross section for measuring other fission cross sections, but in the resonance region it is not considered as an IAEA standard because of the scarce experimental data covering the full region. In this work, we deal with a new analysis of the experimental data obtained with a detection setup based on parallel plate ionization chambers (PPACs) at the CERN n_TOF facility in the range from 1 eV to 10 keV. The relative cross section has been normalised to the IAEA value in the region between 7.8 and 11 eV, which is claimed as well-known. Comparison with the ENDF/B-VII evaluation and the IAEA reference file from 100 eV to 10 keV are provided.
Published: 2016
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43. Towards the high-accuracy determination of the 238U fission cross section at the threshold region at CERN – n_TOF

Author: Diakaki M., Audouin L., Berthoumieux E., Calviani M., Colonna N., Dupont E., Duran I., Gunsing F., Leal-Cidoncha E., Le Naour C., Leong L.S., Mastromarco M., Paradela C., Tarrio D., Tassan-Got L., Aerts G., Altstadt S., Alvarez H., Alvarez-Velarde F., Andriamonje S., Andrzejewski J., Badurek G., Barbagallo M., Baumann P., Becares V., Becvar F., Belloni F., Berthier B., Billowes J., Boccone V., Bosnar D., Brugger M., Calvino F., Cano-Ott D., Capote R., Carrapiço C., Cennini P., Cerutti F., Chiaveri E., Chin M., Cortes G., Cortes-Giraldo M.A., Cosentino L., Couture A., Cox J., David S., Dillmann I., Domingo-Pardo C., Dressler R., Dridi W., Eleftheriadis C., Embid-Segura M., Ferrant L., Ferrari A., Finocchiaro P., Fraval K., Fujii K., Furman W., Ganesan S., Garcia A.R., Giubrone G., Gomez-Hornillos M.B., Goncalves I.F., Gonzalez-Romero E., Goverdovski A., Gramegna F., Griesmayer E., Guerrero C., Gurusamy P., Haight R., Heil M., Heinitz S., Igashira M., Isaev S., Jenkins D.G., Jericha E., Kadi Y., Kaeppeler F., Karadimos D., Karamanis D., Kerveno M., Ketlerov V., Kivel N., Kokkoris M., Konovalov V., Krticka M., Kroll J., Lampoudis C., Langer C., Lederer C., Leeb H., Lo Meo S., Losito R., Lozano M., Manousos A., Marganiec J., Martinez T., Marrone S., Massimi C., Mastinu P., Mendoza E., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondelaers W., Moreau C., Mosconi M., Musumarra A., O’Brien S., Pancin J., Patronis N., Pavlik A., Pavlopoulos P., Perkowski J., Perrot L., Pigni M.T., Plag R., Plompen A., Plukis L., Poch A., Pretel C., Praena J., Quesada J., Rauscher T., Reifarth R., Riego A., Roman F., Rudolf G., Rubbia C., Rullhusen P., Salgado J., Santos C., Sarchiapone L., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Stephan C., Tagliente G., Tain J.L., Tavora L., Terlizzi R., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Versaci R., Vermeulen M.J., Villamarin D., Vincente M.C., Vlachoudis V., Vlastou R., Voss F., Wallner A., Walter S., Ware T., Weigand M., Weiß C., Wiesher M., Wisshak K., Wright T., and Zugec P.
Subjects: Physics, QC1-999
Abstract: The 238U fission cross section is an international standard beyond 2 MeV where the fission plateau starts. However, due to its importance in fission reactors, this cross-section should be very accurately known also in the threshold region below 2 MeV. The 238U fission cross section has been measured relative to the 235U fission cross section at CERN – n_TOF with different detection systems. These datasets have been collected and suitably combined to increase the counting statistics in the threshold region from about 300 keV up to 3 MeV. The results are compared with other experimental data, evaluated libraries, and the IAEA standards.
Published: 2016
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44. Measurement of the α ratio and (n, γ) cross section of 235U from 0.2 to 200 eV at n_TOF

Author: Balibrea-Correa, J., Mendoza, E., Cano-Ott, D., González, E., Capote, R., Krtička, M., Altstadt, S., Andrzejewski, J., Audouin, L., Bécares, V., Barbagallo, M., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Domingo-Pardo, C., Dressler, R., Durán, I., Eleftheriadis, C., Ferrari, A., Fraval, K., Furman, V., Göbel, K., Gómez-Hornillos, M. B., Ganesan, S., García, A. R., Giubrone, G., Gonçalves, I. F., Goverdovski, A., Griesmayer, E., Guerrero, C., Gunsing, F., Heftrich, T., Hernández-Prieto, A., Heyse, J., Jenkins, D. G., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Katabuchi, T., Ketlerov, V., Khryachkov, V., Kivel, N., Koehler, P., Kokkoris, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Lerendegui-Marco, J., Losito, R., Mallick, A., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P., Mastromarco, M., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondelaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A. J. M., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Rubbia, C., Ryan, J. A., Sabaté-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Sedyshev, P., Tagliente, G., Tain, J. L., Tarifeño-Saldivia, A., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., and Žugec, P.
Subjects: PRIRODNE ZNANOSTI. Fizika, α ratio, 235U, Physics, ddc:530, n_TOF, neutron time of flight, NATURAL SCIENCES. Physics
Abstract: We measured the neutron capture-to-fission cross-section ratio (α ratio) and the capture cross section of $^{235}$U between 0.2 and 200 eV at the n_TOF facility at CERN. The simultaneous measurement of neutron-induced capture and fission rates was performed by means of the n_TOF BaF$_{2}$ Total Absorption Calorimeter (TAC), used for detection of γ rays, in combination with a set of micromegas detectors used as fission tagging detectors. The energy dependence of the capture cross section was obtained with help of the $^{6}$Li(n,t) standard reaction determining the n_TOF neutron fluence; the well-known integral of the $^{235}$U(n,f) cross section between 7.8 and 11 eV was then used for its absolute normalization. The α ratio, obtained with slightly higher statistical fluctuations, was determined directly, without need for any reference cross section. To perform the analysis of this measurement we developed a new methodology to correct the experimentally observed effect that the probabilities of detecting a fission reaction in the TAC and the micromegas detectors are not independent. The results of this work have been used in a new evaluation of $^{235}$U performed within the scope of the Collaborative International Evaluated Library Organisation (CIELO) Project, and are consistent with the ENDF/B-VIII.0 and JEFF-3.3 capture cross sections below 4 eV and above 100 eV. However, the measured capture cross section is on average 10% larger between 4 and 100 eV.
Published: 2020

45. Measurement of the $\alpha$ ratio and $(n,\gamma)$ cross section of $^{235}\mathrm{U}$ from 0.2 to 200 eV at n_TOF

Author: Balibrea-Correa, J., Mendoza, E., Cano-Ott, D., González, E., Capote, R., Krtička, M., Altstadt, S., Andrzejewski, J., Audouin, L., Bécares, V., Barbagallo, M., Bečvář, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M.A., Diakaki, M., Domingo-Pardo, C., Dressler, R., Durán, I., Eleftheriadis, C., Ferrari, A., Fraval, K., Furman, V., Göbel, K., Gómez-Hornillos, M.B., Ganesan, S., García, A.R., Giubrone, G., Gonçalves, I.F., Goverdovski, A., Griesmayer, E., Guerrero, C., Gunsing, F., Heftrich, T., Hernández-Prieto, A., Heyse, J., Jenkins, D.G., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Katabuchi, T., Ketlerov, V., Khryachkov, V., Kivel, N., Koehler, P., Kokkoris, M., Kroll, J., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L.S., Lerendegui-Marco, J., Losito, R., Mallick, A., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P., Mastromarco, M., Mengoni, A., Milazzo, P.M., Mingrone, F., Mirea, M., Mondelaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A.J.M., Praena, J., Quesada, J.M., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Rubbia, C., Ryan, J.A., Sabaté-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Sedyshev, P., Tagliente, G., Tain, J.L., Tarifeño-Saldivia, A., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M.J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., Žugec, P., 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, 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: Nuclear Reactions, Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: International audience; We measured the neutron capture-to-fission cross-section ratio (α ratio) and the capture cross section of U235 between 0.2 and 200 eV at the n_TOF facility at CERN. The simultaneous measurement of neutron-induced capture and fission rates was performed by means of the n_TOF BaF2 Total Absorption Calorimeter (TAC), used for detection of γ rays, in combination with a set of micromegas detectors used as fission tagging detectors. The energy dependence of the capture cross section was obtained with help of the Li6(n,t) standard reaction determining the n_TOF neutron fluence; the well-known integral of the U235(n,f) cross section between 7.8 and 11 eV was then used for its absolute normalization. The α ratio, obtained with slightly higher statistical fluctuations, was determined directly, without need for any reference cross section. To perform the analysis of this measurement we developed a new methodology to correct the experimentally observed effect that the probabilities of detecting a fission reaction in the TAC and the micromegas detectors are not independent. The results of this work have been used in a new evaluation of U235 performed within the scope of the Collaborative International Evaluated Library Organisation (CIELO) Project, and are consistent with the ENDF/B-VIII.0 and JEFF-3.3 capture cross sections below 4 eV and above 100 eV. However, the measured capture cross section is on average 10% larger between 4 and 100 eV.
Published: 2020

46. Status and outlook of the neutron time-of-flight facility n_TOF at CERN

Author: Gunsing, F., Abbondanno, U., Aerts, G., Álvarez, H., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Bečvář, F., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., de Albornoz, A. Carrillo, Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillman, I., Dolfini, R., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Frais-Koelbl, H., Fujii, K., Furman, W., Goncalves, I., González-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Haas, B., Haight, R., Heil, M., Herrera-Martinez, A., Igashira, M., Isaev, S., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Karamanis, D., Kerveno, M., Ketlerov, V., Koehler, P., Konovalov, V., Kossionides, E., Krtička, M., Lampoudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., Martínez, T., Massimi, C., Mastinu, P., Mengoni, A., Milazzo, P.M., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., O’Brien, S., Oshima, M., Pancin, J., Papachristodoulou, C., Papadopoulos, C., Paradela, C., Patronis, N., Pavlik, A., Pavlopoulos, P., Perrot, L., Pigni, M.T., Plag, R., Plompen, A., Plukis, A., Poch, A., Pretel, C., Quesada, J., Rauscher, T., Reifarth, R., Rosetti, M., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Sarchiapone, L., Savvidis, I., Stephan, C., Tagliente, G., Tain, J.L., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., Vincente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wendler, H., Wiescher, M., and Wisshak, K.
Published: 2007
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47. Detection of resistance to sterol demethylation-inhibiting (DMI) fungicides inCercospora beticola and efficacy of control of resistant and sensitive strains with flutriafol

Author: Karaoglanidis, G. S., Karadimos, D. A., and Ioannidis, P. M.
Published: 2003
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48. Experimental neutron capture data of 58Ni from the CERN n_TOF facility

Author: Žugec P., Barbagallo M., Colonna N., Bosnar D., Altstadt S., Andrzejewski J., Audouin L., Bécares V., Bečvář F., Belloni F., Berthoumieux E., Billowes J., Boccone V., Brugger M., Calviani M., Calviño F., Cano-Ott D., Carrapiço C., Cerutti F., Chiaveri E., Chin M., Cortés G., Cortés-Giraldo M.A., Diakaki M., Domingo-Pardo C., Dressler R., Duran I., Dzysiuk N., Eleftheriadis C., Ferrari A., Fraval K., Ganesan S., García A.R., Giubrone G., Gómez-Hornillos M.B., Gonçalves I.F., González-Romero E., Griesmayer E., Guerrero C., Gunsing F., Gurusamy P., Heinitz S., Jenkins D.G., Jericha E., Kadi Y., Käppeler F., Karadimos D., Kivel N., Koehler P., Kokkoris M., Krtička M., Kroll J., Langer C., Lederer C., Leeb H., Leong L.S., Lo Meo S., Losito R., Manousos A., Marganiec J., Martínez T., Massimi C., Mastinu P.F., Mastromarco M., Meaze M., Mendoza E., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondalaers W., Paradela C., Pavlik A., Perkowski J., Pignatari M., Plompen A., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riegov A., Roman F., Rubbia C., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Tagliente G., Tain J.L., Tarrío D., Tassan-Got L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Versaci R., Vermeulen M.J., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiß C., and Wright T.
Subjects: Physics, QC1-999
Abstract: The neutron capture cross section of 58Ni was measured at the neutron time of flight facility n_TOF at CERN, from 27 meV to 400 keV neutron energy. Special care has been taken to identify all the possible sources of background, with the so-called neutron background obtained for the first time using high-precision GEANT4 simulations. The energy range up to 122 keV was treated as the resolved resonance region, where 51 resonances were identified and analyzed by a multilevel R-matrix code SAMMY. Above 122 keV the code SESH was used in analyzing the unresolved resonance region of the capture yield. Maxwellian averaged cross sections were calculated in the temperature range of kT = 5 – 100 keV, and their astrophysical implications were investigated.
Published: 2015
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49. 234U(n,f) cross section with the FIC detector at CERN (n TOF)

Author: Karadimos, D., primary and Et al., ..., additional
Published: 2020
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50. Data analysis of the FIC detector at the n_TOF facility

Author: Karadimos, D., primary, Ioannides, K., additional, Assimakopoulos, P., additional, Tsagas, N., additional, Paulopoulos, P., additional, Vlahoudis, V., additional, Cennini, P., additional, Ketlerov, V., additional, Konovalov, V., additional, Stamoulis, K., additional, and Karamanis, D., additional
Published: 2019
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