Author: "Igashira, M" / Topic: nuclear experiment - Searchworks@Jio Institute Digital Library Search Results

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39 results on '"Igashira, M"'

1. Muonic X-Ray Measurement for the Nuclear Charge Distribution: the Case of Stable Palladium Isotopes

Author: Saito, T. Y., Niikura, M., Matsuzaki, T., Sakurai, H., Igashira, M., Imao, H., Ishida, K., Katabuchi, T., Kawashima, Y., Kubo, M. K., Miyake, Y., Mori, Y., Ninomiya, K., Sato, A., Shimomura, K., Strasser, P., Taniguchi, A., Tomono, D., and Watanabe, Y.
Subjects: Nuclear Experiment
Abstract: Background: The nuclear charge radius and distribution are the most fundamental quantities of the atomic nucleus. From the muonic transition energies, the absolute charge radius has been experimentally obtained, while there have been no established methods to discuss the distribution. Purpose: The muonic transition energies for five palladium isotopes with the mass number $A = 104$, $105$, $106$, $108$ and $110$ were measured. The procedure to deduce the charge radii and the method to discuss the charge distribution from the muonic transition energies are proposed. Method: The experiment was performed at the MuSIC-M1 beamline at Research Center for Nuclear Physics, Osaka University. A continuous muon beam impinged on the enriched palladium targets. Muonic X rays were measured by high-purity germanium detectors. Results: The muonic transition energies up to $4f$-$3d$ transitions were determined for five palladium isotopes. Discussion and conclusion: The root-mean-square charge radii are deduced assuming the two-parameter Fermi distribution. The charge distribution of the nucleus is discussed employing the Barrett model. The muonic transition energies of the $3d$-$2p$ transitions are crucial to discuss both the charge radius and the charge distribution.
Published: 2022

2. Quenching of gamma0 transition results from p-wave neutron inducing doorway mechanism

Author: Wang, T. F., Yang, X. T., Katabuchi, T., Li, Z. M., Zhu, L. H., Lee, M. W., Kim, G. N., Ro, T. I., Kang, Y. R., and Igashira, M.
Subjects: Nuclear Experiment, Nuclear Theory
Abstract: Gamma-strength function essentially distinguishes the reaction mechanisms of charged particle inelastic and neutron capture reactions, reflecting from the ratios of transition of neutron capture to low-lying states. The extraordinary quenching of gamma_0 transition of p-wave neutron resonance reaction in 3s-region nucleus 57Fe is observed, for the first time, due to the non-forming 2p-1h doorway state activation which raises the strong intensities of gamma_1 and gamma_2. The enhancement of low energy gamma-strength function doesn't emerge in the neutron capture reaction resulting from the population of cascade transitions of low-lying states rather than primary transitions. The astrophysical reaction rates that are extracted from total and partial neutron capture cross sections of 57Fe might be adopted to constrain the abundance of the successive heavier isotopes in s-process., Comment: 6 pages, 6 figures
Published: 2019

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. 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., Žugec, P., Hambsch, F.-J., Kopecky, S., Siegler, P., Oberstedt, S., Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Mengoni, A., Lo Meo, S., Castelluccio, D. M., Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), n_TOF, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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., 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., Ž Ugec, P., and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear reaction, nTOF, Physics::Instrumentation and Detectors, Chemistry & allied sciences, QC1-999, Nuclear Theory, Neutron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, Physics and Astronomy (all), 0103 physical sciences, CERN, Nuclear astrophysics, Nuclear Physics - Experiment, 010306 general physics, Nuclear Experiment, Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Large Hadron Collider, Física [Àrees temàtiques de la UPC], Cross section, Reaccions nuclears, 010308 nuclear & particles physics, Nuclear data, Nuclear technology, ddc:540, Nuclear reactions
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. © The Authors, published by EDP Sciences, 2017.
Published: 2016

5. High-accuracy determination of the U 238 / U 235 fission cross section ratio up to ≈1 GeV at n-TOF at CERN

Author: Paradela, C., Calviani, M., Tarrío, D., Leal Cidoncha, E., Leong, L. S., Tassan Got, L., Le Naour, C., Duran, I., Colonna, N., Audouin, L., Mastromarco, M., Ventura, A., Aerts, G., Altstadt, S., Álvarez, H., Álvarez Velarde, F., Andriamonje, S., Andrzejewski, J., Badurek, G., Barbagallo, M., Baumann, P., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Cano Ott, D., Capote, R., Carrapiço, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés Giraldo, M. A., Cosentino, L., Couture, A., Cox, J., David, S., Diakaki, M., 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., García, A. R., Giubrone, G., Gómez Hornillos, M. B., Gonçalves, I. F., González Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Haight, R., Heil, M., Heinitz, S., Igashira, M., Isaev, S., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Karamanis, D., Kerveno, M., Ketlerov, V., Kivel, N., Kokkoris, M., Konovalov, V., Krtička, M., Kroll, J., Lampoudis, C., Langer, C., Lederer, C., Leeb, H., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Martínez, T., Marrone, S., Mastinu, P., Mendoza, E., Mengoni, A., Milazzo, P. M., 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., Variale, V., Vaz, P., 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., Žugec, P., LO MEO, SERGIO, MASSIMI, CRISTIAN, MINGRONE, FEDERICA, VANNINI, GIANNI, Paradela, C., Calviani, M., Tarrío, D., Leal-Cidoncha, E., Leong, L.S., Tassan-Got, L., Le Naour, C., Duran, I., Colonna, N., Audouin, L., Mastromarco, M., Lo Meo, S., Ventura, A., Aerts, G., Altstadt, S., Álvarez, H., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Badurek, G., Barbagallo, M., Baumann, P., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M.A., Cosentino, L., Couture, A., Cox, J., David, S., Diakaki, M., 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., García, A.R., Giubrone, G., Gómez-Hornillos, M.B., Gonçalves, I.F., González-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Haight, R., Heil, M., Heinitz, S., Igashira, M., Isaev, S., Jenkins, D.G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Karamanis, D., Kerveno, M., Ketlerov, V., Kivel, N., Kokkoris, M., Konovalov, V., Krtička, M., Kroll, J., Lampoudis, C., Langer, C., Lederer, C., Leeb, H., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Martínez, 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., 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 Žugec, P.
Subjects: Nuclear and High Energy Physics, Nuclear Experiment
Abstract: The U238 to U235 fission cross section ratio has been determined at n-TOF up to ≈1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets has 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 neutron energy. The result confirms current evaluations up to 200 MeV. 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 solve a long-standing discrepancy between the two most important experimental datasets available so far above 20 MeV, while extending the neutron energy range for the first time up to ≈1 GeV.
Published: 2015

6. Neutron-induced fission cross section of Np237 in the keV to MeV range at the CERN n_TOF facility

Author: Diakaki, M, Karadimos, D, Vlastou, R, Kokkoris, M, Demetriou, P, Skordis, E, Tsinganis, A, Abbondanno, U, Aerts, G, Álvarez, H, Alvarez-Velarde, F, Andriamonje, S, Andrzejewski, J, Assimakopoulos, P, Audouin, L, Badurek, G, Baumann, P, Bečvář, F, Berthoumieux, E, Calviani, M, Calviño, F, Cano-Ott, D, Capote, R, Carrillo de Albornoz, A, Cennini, P, Chepel, V, Chiaveri, E, Colonna, N, Cortes, G, Couture, A, Cox, J, David, S, Dolfini, R, Domingo-Pardo, C, Dorochenko, A, Dridi, W, Duran, I, Eleftheriadis, Ch, Embid-Segura, M, Ferrant, L, Ferrari, A, Ferreira-Marques, R, Fitzpatrick, L, Frais-Koelbl, H, Fuji, K, Furman, W, Goncalves, I, Gallino, R, Gonzalez-Romero, E, Goverdovski, A, Gramegna, F, Griesmayer, E, Guerrero, C, Gunsing, F, Haas, B, Haight, R, Heil, M, Herrera-Martinez, A, Igashira, M, Ioannidis, K, Isaev, S, Jericha, E, Kadi, Y, Käppeler, F, Karamanis, D, Kerveno, M, Ketlerov, V, Koehler, P, Kolokolov, D, Konovalov, V, Krtička, M, Lamboudis, C, Leeb, H, Lindote, A, Lopes, I, Lozano, M, Lukic, S, Marganiec, J, Marques, L, Marrone, S, Massimi, C, Mastinu, P, Mengoni, A, Milazzo, P M, Moreau, C, Mosconi, M, Neves, F, Oberhummer, H, O'Brien, S, Oshima, M, Pancin, J, Papadopoulos, C, Paradela, C, Patronis, N, Pavlik, A, Pavlopoulos, P, Perrot, L, 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, Sedysheva, M, Stamoulis, K, 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, Voss, F, Wendler, H, Wiescher, M, and Wisshak, K
Subjects: Nuclear Physics - Experiment, Nuclear Experiment
Abstract: The neutron-induced fission cross section of Np237 was experimentally determined at the high-resolution and high-intensity facility n_TOF, at CERN, in the energy range 100 keV to 9 MeV, using the U235(n,f) and U238(n,f) cross section standards below and above 2 MeV, respectively. A fast ionization chamber was used in order to detect the fission fragments from the reactions and the targets were characterized as far as their mass and homogeneity are concerned by means of α spectroscopy and Rutherford backscattering spectroscopy respectively. Theoretical calculations within the Hauser-Feshbach formalism have been performed, employing the empire code, and the model parameters were tuned in order to successfully reproduce the experimental fission cross-sectional data and simultaneously all the competing reaction channels.
Published: 2016

7. High-accuracy determination of the 238U/ 235U fission cross section ratio up to ≈1 GeV at n_TOF at CERN

Author: Paradela, C., Calviani, M., Tarrío, Diego, Leal-Cidoncha, E., Leong, L. S., Tassan-Got, L., Le Naour, C., Duran, I., Colonna, N., Audouin, L., Mastromarco, M., Lo Meo, S., Ventura, A., Aerts, G., Altstadt, S., Álvarez, H., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Badurek, G., Barbagallo, M., Baumann, P., Bécares, V., Be\ifmmode \checkc\else č\fivá\ifmmode \checkr\else Ŗ\fi, F., Belloni, F., Berthier, B., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Cano-Ott, D., Capote, R., Carrapi\ifmmode \mboxç\else ç\fio, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Cosentino, L., Couture, A., Cox, J., David, S., Diakaki, M., 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., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gon\ifmmode \mboxç\else ç\fialves, I. F., González-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Haight, R., Heil, M., Heinitz, S., Igashira, M., Isaev, S., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Karamanis, D., Kerveno, M., Ketlerov, V., Kivel, N., Kokkoris, M., Konovalov, V., Krti\ifmmode \checkc\else č\fika, M., Kroll, J., Lampoudis, C., Langer, C., Lederer, C., Leeb, H., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Martínez, 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., 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 ifmmode \checkZ\else \vZ\fiugec, P.
Subjects: Physical Sciences, Fysik, Nuclear Experiment, 238U, 235U, fission cross section, n_TOF
Abstract: The U238 to U235 fission cross section ratio has been determined at n_TOF up to ≈1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets has 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 neutron energy. The result confirms current evaluations up to 200 MeV. 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 solve a long-standing discrepancy between the two most important experimental datasets available so far above 20 MeV, while extending the neutron energy range for the first time up to ≈1 GeV.
Published: 2015

8. High accuracy determination of the 238U/235 U fission cross section ratio up to ≈ 1 GeV at n_TOF at CERN

Author: PARADELA DOBARRO CARLOS, CALVIANI M., TARRIO D., LEAL-CIDONCHA E., LEONG L. S., TASSAN-GOT L., LE NAOUR C., DURAN I., COLONNA N., AUDOUIN L., MASTROMARCO M., LO MEO S., VENTURA A., ALTSTADT S., ANDRZEJEWSKI J., BARBAGALLO M., BECARES V., Becvár 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., CORTES G., CORTES-GIRALDO M. A., DIAKAKI M., DOMINGO-PARDO C., DRESSLER R., ELEFTHERIADIS C., FERRARI A., FRAVAL K., GANESAN S., GARCIA A. R., GIUBRONE G., GOMEZ-HORNILLOS M. B., GONZALEZ-ROMERO E., GONÇALVES I., GRIESMAYER E., GUERRERO C., GUNSING F., GURUSAMY P., JENKINS D. G., JERICHA E., KADI Y., KARADIMOS D., KÄPPELER F., KOKKORIS M., KIVEL Niko, KROLL J., Krticka M., LANGER 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., MONDELAERS Willy, PAVLIK Andreas, PERKOWSKI J., PLOMPEN Arjan, PRAENA J., QUESADA J., RAUSCHER T., REIFARTH R., RIEGO A., ROMAN F., RUBBIA C., SARMENTO R., SCHILLEBEECKX Peter, SCHMIDT S., SCHUMANN D., TAGLIENTE G., TAIN J. L., TSINGANIS A., VALENTA S., VANNINI G., VARIALE V., VAZ P., VERMEULEN M., VERSACI R., VLACHOUDIS V., VLASTOU R., WALLNER A., WARE T., WEIGAND M., WEISS C., WRIGHT T. J., ZUGEC P., BERTHIER B., FERRANT L., ALVAREZ H., ALVAREZ-VELARDE F., ANDRIAMONJE S., BADUREK G., BAUMANN P., CAPOTE R., CENNINI P., COUTURE A., COX J., DAVID S., DILLMANN I., DRIDI W., EMBID-SEGURA M., FUJII K., FURMAN W., GRAMEGNA F., HAIGHT R., HEIL M., IGASHIRA M., KERVENO M., LOZANO M., MARRONE S., MOREAU C., MOSCONI M., O'BRIEN S., PERROT L., PLAG R., PLUKIS A., PRETEL C., RUDOLF G., SALGADO J., SANTOS C., SARCHIAPONE L., TAVORA L., TERLIZZI R., VILLAMARIN D., VINCENTE M. C., WALTER S., WIESCHER M., WISSHAK K., AERTS G., PAVLOPOULOS P., COSENTINO Luigi, FINOCCHIARO Paolo, GOVERDOVSKI A., HEINITZ S., ISAEV S., KARAMANIS D., KETLEROV V., KONOVALOV V., LAMPOUDIS C., LEDERER C., MUSUMARRA A., PANCIN J., PATRONIS N., PIGNI M. T., POCH A., RULLHUSEN PETER, SAXENA A., STEPHAN C., and VOSS F.
Subjects: Nuclear Experiment
Abstract: The 238U to 23577 U fission cross section ratio has been determined at n_TOF up to 1 GeV, with two different detection systems, in different geometrical configurations. A total of four data sets has 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 neutron energy. The result confirms current evaluations up to 200 MeV. 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 datasets available so far above 20 MeV, while extending the neutron energy range for the first time up to 1 GeV., JRC.D.4-Standards for Nuclear Safety, Security and Safeguards
Published: 2015

9. Measurement and analysis of the Am-243 neutron capture cross section at the n_TOF facility at CERN

Author: TOF Collaboration, 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., Wisshak, K., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), n_TOF Collaboration, 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), and Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 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: Improvement of the 243Am(n,γ ) cross section uncertainty. Method: The 243Am(n,γ ) cross section has been measured at the n_TOF facility at CERN with a BaF2 total absorption calorimeter, in the energy range between 0.7 eV and 2.5 keV. Results: The 243Am(n,γ ) 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 have been used to perform a simple analysis above 2.5 keV. Conclusions: The results of this measurement contribute to reduce the 243Am(n,γ ) 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., JRC.D.4-Standards for Nuclear Safety, Security and Safeguards
Published: 2014

10. Measurement of resolved resonances of 232Th(n,g) at the n_TOF facility at CERN

Author: Gunsing F., Berthoumieux E., Aerts G., Abbondanno U., Alvarez H., Alvarez Velarde F., Andriamonje S., Andrzejewski J., Assimakopoulos P., Audouin L., Badurek G., Baumann P., Becvar F., Calvino F., Cano Ott D., Capote R., Carrillo de Albornoz A., 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., Embid Segura M., 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., Guerrero C., Haas B., Haight R., Heil M., Herrera Martinez A., Igashira M., Isaev S., Jericha E., Kappeler 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., 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., Vaz P., Ventura A., Villamarin D., Vincente M. C., Vlachoudis V., Vlastou R., Voss F., Walter S., Wendler H., Wiescher M., Wisshak K., VANNINI, GIANNI, Gunsing F., Berthoumieux E., Aerts G., Abbondanno U., Alvarez H., Alvarez-Velarde F., Andriamonje S., Andrzejewski J., Assimakopoulos P., Audouin L., Badurek G., Baumann P., Becvar F., Calvino F., Cano-Ott D., Capote R., Carrillo de Albornoz A., 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., Embid-Segura M., 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., Guerrero C., Haas B., Haight R., Heil M., Herrera-Martinez A., Igashira M., Isaev S., Jericha E., Kappeler 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., 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.
Subjects: NEUTRON TIME-OF-FLIGHT, Computer Science::Systems and Control, RADIATIVE NEUTRON CAPTURE, NUCLEAR TECHNOLOGIES, Nuclear Experiment
Abstract: The yield of the neutron capture reaction 232Th(n,γ) has been measured at the neutron time-of-flight facility n_TOF at CERN in the energy range from 1 eV to 1 MeV. The reduction of the acquired data to the capture yield for resolved resonances from 1 eV to 4 keV is described and compared to a recent evaluated data set. The resonance parameters were used to assign an orbital momentum to each resonance. A missing level estimator was used to extract the s-wave level spacing of D0=17.2±0.9 eV.
Published: 2012

11. 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., Aerts, G., Altstadt, S., Álvarez, H., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Badurek, G., Barbagallo, M., Baumann, P., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Cosentino, L., Couture, A., Cox, J., David, S., Diakaki, M., 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., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Haight, R., Heil, M., Heinitz, S., Igashira, M., Isaev, S., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Karamanis, D., Kerveno, M., Ketlerov, V., Kivel, N., Kokkoris, M., Konovalov, V., Krtička, M., Kroll, J., Lampoudis, C., Langer, C., Lederer, C., Leeb, H., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Martínez, 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., 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., Žugec, P., Universidade de Santiago de Compostela [Spain] (USC ), 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), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Centre National de la Recherche Scientifique (CNRS), 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: FOS: Physical sciences, Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), 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. The U238 to U235 fission cross section ratio has been determined at n_TOF up to ≈1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets has 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 neutron energy. The result confirms current evaluations up to 200 MeV. 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 solve a long-standing discrepancy between the two most important experimental datasets available so far above 20 MeV, while extending the neutron energy range for the first time up to ≈1 GeV. 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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12. Neutron measurements for advanced nuclear systems: The n_TOF project at CERN

Author: Calviani, M., Praena, J., Colonna, N., Belloni, F., Gonçalves, I.F., Vaz, P., Aerts, G., Alvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Barbagallo, M., Badurek, G., Becvar, F., Berthoumieux, E., Calvino, F., Cano-Ott, D., Capote, R., Carrapiço, C., Carrillo De Albornoz, A., Cennini, P., Chepel, V., Chiaveri, E., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Diakaki, M., Dillmann, I., Dolfini, R., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Ferrant, L., Ferrari, Anthony, Ferreira-Marques, R., Frais-Koelbl, H., Fuji, K., Furman, W., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Haight, R., Heil, M., Herrera-Martinez, A., Igashira, M., Isaev, S., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Ketlerov, V., Koehler, P., Konovalov, V., Kossionides, E., Krticka, M., Lampoudis, C., Lederer, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Marganiec, J., Marques, L., Marrone, S., Martinez, T., Massimi, C., Mastinu, P., Mendoza, E., 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., 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., Tarrio, D., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Ventura, A., Villamarin, D., Vicente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wendler, H., Wiescher, M., Wisshak, K., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), nTOF, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, 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 and High Energy Physics, Astrofísica nuclear, Nuclear engineering, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, Nuclear astrophysics, Spallation, Neutron, 010306 general physics, Nuclear Experiment, Instrumentation, Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Large Hadron Collider, Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, Nuclear fission, Nuclear data, Neutron radiation, Nuclear technology, Energia nuclear, Physics::Accelerator Physics, Física nuclear, Spallation Neutron Source
Abstract: A few years ago, the neutron time-of-flight facility n_TOF was built at CERN to address some of the urgent needs of high-accuracy nuclear data for Accelerator Driven Systems and other advanced nuclear energy systems, as well as for nuclear astrophysics and fundamental nuclear physics. Thanks to the characteristics of the neutron beam, and to state-of-the-art detection and acquisition systems, high quality neutron cross-section data have been obtained for a variety of isotopes, many of which radioactive. Following an important upgrade of the spallation target and of the experimental area, a new measurement campaign has started last year. After a brief review of the most important results obtained so far at n_TOF, the new features of the facility are presented, together with the first results on the commissioning of the neutron beam. The plans for future measurements, in particular related to nuclear technology are finally discussed.
Published: 2012

13. Neutron-induced fission cross section measurement of 233U, 241Am and 243Am in the energy range 0.5MeV 6 En 6 20MeV at n TOF at CERN

Author: Belloni, F., M Milazzo, P., Calviani, M., Colonna, N., Mastinu, P., Abbondanno, U., Aerts, G., A' Lvarez, H., A' Lvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Barbagallo, M., Baumann, P., Beˇcv'Aˇr, F., Berthoumieux, E., Calvi˜no, F., Cerutti, F., Cano-Ott, D., Capote, R., Carrapi¸co, C., Carrillo De Albornoz, A., Cennini, P., Chepel, V., Chiaveri, E., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillmann, I., Dolfini, R., Domingo-Pardo, C., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, Anthony, Ferreira-Marques, R., Fitzpatrick, L., Frais-Koelbl, H., Fujii, K., Goncalves, I., Gonz'Alez-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., K¨appeler, F., Kadi, Y., Karadimos, D., Karamanis, D., Ketlerov, V., Kerveno, M., Koehler, P., Konovalov, V., Kossionides, E., Krtiˇcka, M., Lampoudis, C., Lederer, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., Mart'Inez, T., Massimi, C., H Meaze, M., Mengoni, A., 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., T Pigni, M., 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., L Tain, J., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., C Vincente, M., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wendler, H., Kwisshak, And, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Francis PERRIN (LFP - URA 2453), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Instituto de Plasmas e Fusão Nuclear [Lisboa] (IPFN), Instituto Superior Técnico, Universidade Técnica de Lisboa (IST), Centro de Física da Universidade do Minho (CFUM), Universidade do Minho = University of Minho [Braga], Laboratoire de mesure du carbone 14 (LMC14 - UMS 2572), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut de Radioprotection et de Sûreté Nucléaire (IRSN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, 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), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Universidade do Minho, and Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Physics::Accelerator Physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Neutron-induced fission cross section measurements of 233U, 243Am and 241Am relative to 235U have been carried out at the neutron time-of-flight facility n TOF at CERN. A fast ionization chamber has been employed. All samples were located in the same detector; therefore the studied elements and the reference 235U target are subject to the same neutron beam.
Published: 2012

14. Fission croos-section measurements of U-233, Cm-245 and Am-241,243 at the CERN n_TPOF facility

Author: Calviani, M., Colonna, N., Belloni, F., H. Meaze, M., Abbondanno, U., Aerts, G., Álvarez, H., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulo, P., Audouin, L., Badurek, G., Baumann, P., Becvar, F., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., Carrillo De Albornoz, A., Cennini, P., Chepel, V., Chiaver, 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, Anthony, 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., Praena, J., 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., Wisshak, K., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, 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), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Biochimie et Physiologie Moléculaire des Plantes (BPMP), and Université de Montpellier (UM)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear Data, Am, Nuclear Theory, ENDF, Cm, neutron-induced fission reactions, n_TOF, ND2010, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Neutron-induced fission cross-sections of minor actinides have been measured using the n_TOF white neutron source at CERN, Geneva, as part of a large experimental program aiming at collecting new data relevant for nuclear astrophysics and for the design of advanced reactor systems. The measurements at n_TOF take advantage of the innovative features of the n_TOF facility, namely the wide energy range, high instantaneous neutron flux and good energy resolution. Final results on the fission cross-section of 233U, 245Cm and 243Am from thermal to 20 MeV are here reported, together with preliminary results for 241Am. The measurement have been performed with a dedicated Fast Ionization Chamber (FIC), a fission fragment detector with a very high efficiency, relative to the very well known cross-section of 235U, measured simultaneously with the same detector.
Published: 2011

15. Fission Cross-section Measurements of 233U, 245Cm and 241;243Am at CERN n_TOF Facility

Author: Calviani, M., Andriamonje, S., Colonna, N., Belloni, F., H. Meaze, M., Abbondanno, U., Aerts, G., Andrzejewski, J., Assimakopoulo, P., Audouin, L., Badurek, G., Baumann, P., Becvar, F., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., Carrillo de Albornoz, A., Cennini, P., Chepel, V., Chiaver, 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, Anthony, 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., Praena, J., 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., Wisshak, K., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, 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), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), M. Calviani, S. Andriamonje, E. Chiaveri, V. Vlachoudi, N. Colonna, M. H. Meaze, S. Marrone, G. Tagliente, R. Terlizzi, F. Belloni, U. Abbondanno, K. Fujii, P. M. Milazzo, C. Moreau, C. Massimi, G. Aert, E. Berthoumieux, W. Dridi, F. Gunsing, J. Pancin, L. Perrot, A. Pluki, H. Alvarez, I. Duran, C. Paradela, F. Alvarez-Velarde, D. Cano-Ott, E. Gonzalez-Romero, C. Guerrero, T. Martinez, D. Villamarin, M. C. Vicente, J. Andrzejewski, J. Marganiec, P. Assimakopoulo, D. Karadimo, D. Karamani, C. Papachristodoulou, N. Patroni, L. Audouin, S. David, L. Ferrant, S. Isaev, C. Stephan, L. Tassan-Got, G. Badurek, E. Jericha, H. Leeb, H. Oberhummer, M. T. Pigni, P. Baumann, M. Kerveno, S. Lukic, G. Rudolf, F. Becvar, M. Krticka, F. Calvino, R. Capote and A. Carrillo De Albornoz, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, and Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions
Subjects: Physics::Instrumentation and Detectors, Fission, Nuclear Theory, ENDF, General Physics and Astronomy, neutron-induced fission reactions, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], NEUTRON INDUCED REACTIONS, European Organization for Nuclear Research. CERN, 7. Clean energy, 01 natural sciences, Nuclear physics, Nuclear Data, Am, Neutron flux, 0103 physical sciences, Cm, Nuclear astrophysics, n_TOF, ND2010, 010306 general physics, Nuclear Experiment, EMERGING NUCLEAR TECHNOLOGIES, Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Large Hadron Collider, 010308 nuclear & particles physics, Nuclear data, Nuclear energy, Ionization chamber, Neutron source, Energia nuclear, fission cross section, Energy (signal processing)
Abstract: Neutron-induced ssion cross-sections of minor actinides have been measured using the n TOF white neutron source at CERN, Geneva, as part of a large experimental program aiming at collecting new data relevant for nuclear astrophysics and for the design of advanced reactor systems. The measurements at n TOF take advantage of the innovative features of the n TOF facility, namely the wide energy range, high instantaneous neutron ux and good energy resolution. Final results on the ssion cross-section of 233U, 245Cm and 243Am from thermal to 20 MeV are here reported, together with preliminary results for 241Am. The measurement have been performed with a dedicated Fast Ionization Chamber (FIC), a ssion fragment detector with a very high e ciency, relative to the very well known cross-section of 235U, measured simultaneously with the same detector.
Published: 2011

16. Measurement of the 236U(n,f) cross section from 170 meV to 2 MeV at the CERN n_TOF facility

Author: Sarmento, R., Calviani, M., Praena, J., Colonna, N., Belloni, F., F. Gonçalves, I., Vaz, P., Aerts, G., Alvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Barbagallo, M., Badurek, G., Baumann, P., Becvar, F., Berthoumieux, E., Calvino, F., Cano-Ott, D., Capote, R., Carrapiço, C., Carrillo De Albornoz, A., Cennini, P., Chepel, V., Chiaveri, E., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Diakaki, M., Dillmann, I., Dolfini, R., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Ferrant, L., Ferrari, Anthony, Ferreira-Marques, R., Frais-Koelbl, H., Fuji, K., Furman, W., Gonzalez-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., Lederer, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., Martinez, T., Massimi, C., Mastinu, P., Mendoza, E., Mengoni, A., M. Milazzo, P., 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., T. Pigni, M., 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., L. Tain, J., Tarrio, D., Tassan-Got, L., Tavora, L., Terlizzi, R., Vannini, G., Ventura, A., Villamarin, D., C. Vicente, M., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wendler, H., Wiescher, M., Wisshak, K., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, 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), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), R. Sarmento, M. Calviani, J. Praena, N. Colonna, F. Belloni, I. F. Gonçalve, P. Vaz, G. Aert, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, M. Barbagallo, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, D. Cano-Ott, R. Capote, C. Carrapiço, A. Carrillo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, M. Diakaki, I. Dillmann, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, L. Ferrant, A. Ferrari, R. Ferreira-Marque, H. Frais-Koelbl, K. Fuji, W. Furman, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionide, M. Krticka, C. Lampoudi, C. Lederer, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, L. Marque, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, E. Mendoza, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, D. Tarrio, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, A. Ventura, D. Villamarin, M. C. Vicente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, and K. Wisshak
Subjects: NEUTRON TIME-OF-FLIGHT, Nuclear Theory, neutron-induced fission cross section, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, EMERGING NUCLEAR TECHNOLOGIES
Abstract: The neutron-induced fission cross section of 236U was measured at the neutron Time-of-Flight (n_TOF) facility at CERN relative to the standard 235U(n,f) cross section for neutron energies ranging from above thermal to several MeV. The measurement, covering the full range simultaneously, was performed with a fast ionization chamber, taking advantage of the high resolution of the n_TOF spectrometer. The n_TOF results confirm that the first resonance at 5.45 eV is largely overestimated in some nuclear data libraries. The resonance triplet around 1.2 keV was measured with high resolution and resonance parameters were determined with good accuracy. Resonances at high energy have also been observed and characterized and different values for the cross section are provided for the region between 10 keV and the fission threshold. The present work indicates various shortcomings of the current nuclear data libraries in the subthreshold region and provides the basis for an accurate re-evaluation of the 236U(n,f) cross section, which is of great relevance for the development of emerging or innovative nuclear reactor technologies.
Published: 2011

17. Neutron-induced fission cross section of (nat)Pb and (209)Bi from threshold to 1 GeV: An improved parametrization

Author: Tarrio, D, Tassan-Got, L, Audouin, L, Berthier, B, Duran, I, Ferrant, L, Isaev, S, Le Naour, C, Paradela, C, Stephan, C, Trubert, D, Abbondanno, U, Aerts, G, Alvarez-Velarde, F, Andriamonje, S, Andrzejewski, J, Assimakopoulos, P, Badurek, G, Baumann, P, Becvar, F, Belloni, F, Berthoumieux, E, Calvino, F, Calviani, M, Cano-Ott, D, Capote, R, Carrapico, C, Carrillo de Albornoz, A, 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, Eleftheriadis, C, Embid-Segura, M, 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, Guerrero, C, Gunsing, F, Haas, B, Haight, R, Heil, M, Herrera-Martinez, A, Igashira, M, Jericha, E, Kadi, Y, Kappeler, F, Karadimos, D, Karamanis, D, Kerveno, M, Ketlerov, V, Koehler, P, Konovalov, V, Kossionides, E, Krticka, M, Lampoudis, C, Leeb, H, Lederer, C, Lindote, A, Lopes, I, Losito, R, Lozano, M, Lukic, S, Marganiec, J, Marques, L, Marrone, S, Martinez, T, Massimi, C, Mastinu, P, Mendoza, E, Mengoni, A, Milazzo, P.M, Moreau, C, Mosconi, M, Neves, F, Oberhummer, H, O'Brien, S, Oshima, M, Pancin, J, Papachristodoulou, C, Papadopoulos, 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, Sarmento, R, Savvidis, I, Tagliente, G, Tain, J.L, Tavora, L, Terlizzi, R, Vannini, G, Vaz, P, Ventura, A, Villamarin, D, Vlachoudis, V, Vlastou, R, Voss, F, Walter, S, Wendler, H, Wiescher, M, and Wisshak, K
Subjects: Physics::Instrumentation and Detectors, Nuclear Theory, Nuclear Experiment, XX
Abstract: Neutron-induced fission cross sections for (nat)Pb and (209)Bi were measured with a white-spectrum neutron source at the CERN Neutron Time-of-Flight (n\_TOF) facility. The experiment, using neutrons from threshold up to 1 GeV, provides the first results for these nuclei above 200 MeV. The cross sections were measured relative to (235)U and (238)U in a dedicated fission chamber with parallel plate avalanche counter detectors. Results are compared with previous experimental data. Upgraded parametrizations of the cross sections are presented, from threshold energy up to 1 GeV. The proposed new sets of fitting parameters improve former results along the whole energy range.
Published: 2011

18. Neutron-induced fission cross sections of 233U and 243Am in the energy range 0.5 Mev En 20 MeV @ n_TOF

Author: Belloni, F, Milazzo, P M, Calviani, M, Colonna, N, Mastinu, P, Abbondanno, U, Aerts, G, Álvarez, H, Álvarez-Velarde, F, Andriamonje, S, Andrzejewski, J, Assimakopoulos, P, Audouin, L, Badurek, G, Baumann, P, Becvár, 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, Ferrant, L, Ferrari, A, Ferreira-Marques, R, Fujii, K, Furman, W, Goncalves, I, González-Romero, E, 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, Krticka, M, Lampoudis, C, Leeb, H, Lindote, A, Lopes, I, Lozano, M, Lukic, S, Marganiec, J, Marrone, S, Martínez, T, Massimi, C, 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, 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, Vazl, P, Ventura, A, Villamarin, D, Vincente, M C, Vlachoudis, V, Vlastou, R, Voss, F, Walter, S, Wiescher, M, and Wisshak, K
Subjects: inorganic chemicals, biological sciences, Nuclear Theory, technology, industry, and agriculture, lipids (amino acids, peptides, and proteins), Nuclear Physics - Experiment, Nuclear Experiment
Abstract: Neutron-induced fission cross-sections of actinides have been recently measured at the neutron time of flight facility n_TOF at CERN in the frame of a research project involving isotopes relevant for nuclear astrophysics and nuclear technologies. Fission fragments are detected by a gas counter with good discrimination between nuclear fission products and background events. Neutron-induced fission cross-sections of 233U and 243Am were determined relative to 235U. The present paper reports the results obtained at neutron energies between 0.5 and 20 MeV.
Published: 2011

19. High-accuracy $^{233}$U(n,f) cross-section measurement at the white-neutron source n_TOF from near-thermal to 1 MeV neutron energy

Author: Sarchiapone, L., Savvidis, I., Konovalov, V., Stephan, C., Tagliente, G., Krticka, M., Rudolf, G., Kossionides, E., Rullhusen, P., Leeb, H., Salgado, J., Capote, R., Cano-Ott, D., Mengoni, A., Calviño Tavares, Francisco|||0000-0002-7198-4639, Milazzo, P.M., Berthoumieux, E., Massimi, C., Berthier, B., Mastinu, P., Belloni, F., Lampoudis, C., Marrone, S., Becvár, F., Martínez, T., Baumann, P., Badurek, G., Audouin, L., Carrapiço, C., Marganiec, J., Lukic, S., Lozano, M., Santos, C., Lopes, I., Lindote, A., Taín Enríquez, José Luis|||0000-0002-3263-6965, Tassan-Got, L., Assimakopoulos, P.A., Kadi, Y., Calviani, M., Karadimos, D., Praena, J., Karamanis, D., Abbondanno, U., Ketlerov, V., Aerts, G., Kerveno, M., Álvarez, H., Koehler, P., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Vlachoudis, V., Vlastou, R., Villamarin, D., Vincente, M.C., Käppeler, F., Vaz, P., Jericha, E., Ventura, A., Igashira, M., Terlizzi, R., Herrera-Martinez, A., Vannini, G., Voss, F., Guerrero, C., Tavora, L., Gunsing, F., Goverdovski, A., Gramegna, F., Heil, M., Haas, B., Haight, R., Furman, W., Gonzalez-Romero, E., Goncalves, I., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Fujiii, K., Dridi, W., Duran, I., Eleftheriadis, C., Embid-Segura, M., Domingo-Pardo, C., Dillmann, I., David, S., Cox, J., Dahlfors, M., Cortés Rossell, Guillem Pere|||0000-0002-3648-5826, Couture, A., Chiaveri, E., Colonna, N., Cennini, P., Chepel, V., Rubbia, C., Rosetti, M., Plukis, A., Poch Parés, Agustí, Plag, R., Plompen, A., Rauscher, T., Reifarth, R., Pretel Sánchez, Carme|||0000-0001-6199-3366, Quesada, J., Pigni, M.T., Perrot, L., Pavlopoulos, P., Papadopoulos, C., Paradela, C., Wisshak, K., Patronis, N., Pavlik, A., O'Brien, S., Pancin, J., Papachristodoulou, C., Mosconi, M., Moreau, C., Oberhummer, H., Walter, S., Neves, F., Wiescher, M., Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), TOF, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, 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), and Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Energies::Energia nuclear [Àrees temàtiques de la UPC], Física::Física de partícules [Àrees temàtiques de la UPC], Nuclear physics, Física nuclear, Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: The 233U(n,f ) cross section has been measured at the white neutron source n TOF in a wide energy range with a dedicated fission ionization chamber. We report here the results from ∼30 meV to 1 MeV neutron energy. The 233U(n,f ) cross section has been determined relative to a reference sample of 235U(n,f )measured simultaneously with the same detector. The very high instantaneous neutron flux and the intrinsically low background of the n TOF installation result in an accuracy around 3% in the whole energy range, while the energy resolution of the neutron beam allows for an accurate description of the fission cross section by means of R-matrix analysis over a wide energy range. The results are, in general, in good agreementwith the most recent high-accuracy measurement of this fission cross section, over the more limited range of the previous measurements, and indicated that even the latest evaluations underestimate the cross section in the epithermal region. The present high-quality data provide the basis for a more precise evaluation of the 233U fission cross section and for improving the reliability of databases needed for the design of new energy systems based on the Th/U cycle.
Published: 2009

20. Experimental study of the 91Zr(n gamma) reaction up to 26 keV

Author: Tagliente, G, Milazzo, P M, Fujii, K, Aerts, G, Abbondanno, U, Alvarez, H, Alvarez-Velarde, F, Andriamonje, Samuel A, Andrzejewski, J, Assimakopoulos, Panayiotis, Audouin, L, Badurek, G, Baumann, P, Becvár, F, Belloni, F, Berthoumieux, E, Calviño, F, Calviani, M, Cano-Ott, D, Capote, R, Carrapiço, C, Cennini, P, Chepel, V, Colonna, N, Cortés, G, Couture, A, Cox, J, Dahlfors, M, David, S, Dillmann, I, Domingo-Pardo, C, Dridi, W, Durán, I, Eleftheriadis, C, Embid-Segura, M, Ferrant, L, Ferrari, A, Ferreira-Marques, R, Furman, W, Gonçalves, I, Gonzalez-Romero, E, Gramegna, F, Guerrero, C, Gunsing, F, Haas, B, Haight, R, Heil, M, Herrera-Martínez, A, Igashira, M, Jericha, E, Kappeler, F, Kadi, Y, Karadimos, D, Karamanis, D, Kerveno, M, Köhler, P, Kossionides, E, Krticka, M, Lamboudis, C, Leeb, H, Lindote, A, Lopes, I, Lozano, M, Lukic, S, Marganiec, J, Marrone, S, Martínez, T, Massimi, C, Mastinu, P, 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-Rodriguez, J, Pretel, C, Quesada, J, Rauscher, T, Reifarth, R, Rubbia, C, Rudolf, G, Rullhusen, P, Salgado, J, Santos, C, Sarchiapone, L, Savvidis, I, Stéphan, C, Taín, J L, Tassan-Got, L, Tavora, L, Terlizzi, R, Vannini, G, Vaz, P, Ventura, A, Villamarín, D, Vincente, M C, Vlachoudis, V, Vlastou, R, Voss, F, Walter, S, Wiescher, M, Wisshak, K, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratori Nazionali di Legnaro (LNL), Istituto Nazionale di Fisica Nucleare (INFN), European Organization for Nuclear Research (CERN), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (INFN, Sezione di Bologna), nTOF, 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), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and National Institute for Nuclear Physics (INFN)
Subjects: statistical-model, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, cern, transmission, nucleosynthesis, capture cross-sections, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 25.40.Lw, 25.70.Ef, 27.60.+j, 97.10.Cv, n-tof, evolution, Nuclear Physics - Experiment, giant branch stars, Nuclear Experiment, neutron-capture, s-process
Abstract: The neutron capture cross sections of the Zr isotopes are relevant to studies in nuclear structure, nuclear astrophysics, and nuclear technology. The valence neutron of (91)Zr with respect to the neutron magic nucleus (90)Zr has interesting implications for the statistical analysis in the proximity of shell closures. In stellar nucleosynthesis, the Zr isotopes are important for the s-process reaction flow between the Fe seeds and the heavier isotopes. Because of its relatively small (n, gamma) cross sections, Zr represents also an interesting structural material for nuclear reactors. For the same reason, these cross sections are difficult to measure and reliable data are sparse. Therefore, the (n, gamma) cross sections of the Zr isotopes have been remeasured at the CERN n_TOF facility. Thanks to its high instantaneous flux, good energy resolution, and low background, this facility is particularly suited for the determination of small, resonance-dominated cross sections. In this work, results for the (91)Zr(n, gamma) (92)Zr reaction are reported in the neutron energy range from thermal to 26 keV. In this region, accurate data of 157 resonances could be obtained, 33 of these resonances are not present in the main databases and/or were observed for the first time. Physical Review C
Published: 2008

21. Neutron capture cross section of 90Zr: Bottleneck in the s-process reaction flow

Author: Tagliente, G., Fujii, K., Milazzo, P.M., Moreau, C., Aerts, G., Abbondanno, U., Álvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Bečvá&#345, F., Berthoumieux, E., Bisterzo, S., 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., Dillman, I., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, Anthony, Ferreira-Marques, R., Furman, W., Gallino, R., Goncalves, I., Gonzalez-Romero, E., 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., Mastinu, P., Mengoni, A., 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., T. Pigni, M., 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., 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., Wisshak, K., Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), 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), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pole Universitaire Leonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, 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), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: zr isotopes, facility, Astrophysics::High Energy Astrophysical Phenomena, nucleosynthesis, valence component, system, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 25.40.Lw, 25.70.Ef, 27.60.+j, 97.10.Cv, n-tof, massive stars, energy range, evolution, Nuclear Physics - Experiment, giant branch stars, Nuclear Experiment
Abstract: The neutron capture cross sections of the Zr isotopes have important implications in nuclear astrophysics and for reactor design. The small cross section of the neutron magic nucleus (90)Zr, which accounts for more than 50% of natural zirconium represents one of the key isotopes for the stellar s-process, because it acts as a bottleneck in the neutron capture chain between the Fe seed and the heavier isotopes. The same element, Zr, also is an important component of the structural materials used in traditional and advanced nuclear reactors. The (n, gamma) cross section has been measured at CERN, using the n_TOF spallation neutron source. In total, 45 resonances could be resolved in the neutron energy range below 70 keV, 10 being observed for the first time thanks to the high resolution and low backgrounds at n_TOF. On average, the Gamma(gamma) widths obtained in resonance analyses with the R-matrix code SAMMY were 15% smaller than reported previously. By these results, the accuracy of the Maxwellian averaged cross section for s-process calculations has been improved by more than a factor of 2. Physical Review C
Published: 2008

22. Measurement of the radiative neutron capture cross section of 206Pb and its astrophysical implications

Author: Domingo-Pardo, C., Abbondanno, U., Aerts, G., Alvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Becvar, F., Berthoumieux, E., Bisterzo, S., Calvino, F., Calviani, M., Cano-Ott, D., Capote, R., Carrapico, C., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillman, I., Dolfini, R., Dridi, W., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Fitzpatrick, L., Frais-Koelbl, H., Fujii, K., Furman, W., Gallino, R., Goncalves, I., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Haas, B., Haight, R., Heil, M., Herrera-Martinez, A., Igashira, M., Isaev, M., Jericha, E., Kappeler, F., Kadi, Y., Karadimos, D., Karamanis, D., Kerveno, M., Ketlerov, V., Koehler, P., Konovalov, V., Kossionides, E., Krticka, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marrone, S., Massimi, C., Mastinu, P., Mengoni, A., Milazzo, P.M., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., Oshima, M., O'Brien, S., Pancin, J., Papachristodoulou, C., Papadopoulos, C., Paradela, C., Patronis, N., Pavlik, A., Pavlopoulos, P., Perrot, L., 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., Wisshak, K., Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), 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), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, 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), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 25.40.Lw,27.80.+w,97.10.Cv, Neutron capture cross sections, Pulse height weighting technique, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, C6D6 scintillation detectors, Nuclear Physics - Experiment, Nuclear astrophysics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, Monte Carlo simulations
Abstract: The (n, gamma) cross section of 206Pb has been measured at the CERN n_TOF facility with high resolution in the energy range from 1 eV to 600 keV by using two optimized C6D6 detectors. In the investigated energy interval about 130 resonances could be observed, from which 61 had enough statistics to be reliably analyzed via the R-matrix analysis code SAMMY. Experimental uncertainties were minimized, in particular with respect to (i) angular distribution effects of the prompt capture gamma-rays, and to (ii) the TOF-dependent background due to sample-scattered neutrons. Other background components were addressed by background measurements with an enriched 208Pb sample. The effect of the lower energy cutoff in the pulse height spectra of the C6D6 detectors was carefully corrected via Monte Carlo simulations. Compared to previous 206Pb values, the Maxwellian averaged capture cross sections derived from these data are about 20% and 9% lower at thermal energies of 5 keV and 30 keV, respectively. These new results have a direct impact on the s-process abundance of 206Pb, which represents an important test for the interpretation of the cosmic clock based on the decay of 238U., Comment: 11 pages, 8 figures, paper to be submitted to Phys. Rev. C
Published: 2007

23. Measurement of the neutron capture cross section of the s-only isotope 204Pb from 1 eV to 440 keV

Author: DOMINGO-PARDO, C., ABBONDANNO, U., AERTS, G., ÁLVAREZ-POL, H., ALVAREZ-VELARDE, F., ANDRIAMONJE, S., ANDRZEJEWSKI, J., ASSIMAKOPOULOS, P., AUDOUIN, L., BADUREK, G., BAUMANN, P., BE&#269VÁ, F., BERTHOUMIEUX, E., BISTERZO, S., CALVIÑO, F., 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., DOLFINI, R., DRIDI, W., DURAN, I., ELEFTHERIADIS, C., EMBID-SEGURA, M., FERRANT, L., FERRARI, Anthony, FERREIRA-MARQUES, R., FITZPATRICK, L., FRAIS-KOELBL, H., FUJII, K., FURMAN, W., GALLINO, R., GONCALVES, I., GONZALEZ-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., KADI, Y., KÄPPELER, F., KARAMANIS, D., KARADIMOS, D., KERVENO, M., KETLEROV, V., KOEHLER, P., KONOVALOV, V., KOSSIONIDES, E., KRTIČKA, M., LAMBOUDIS, C., LEEB, H., LINDOTE, A., LOPES, I., LOZANO, M., LUKIC, S., MARGANIEC, J., MARRONE, S., MASTINU, P., MENGONI, A., M. MILAZZO, P., MOREAU, C., MOSCONI, M., NEVES, F., OBERHUMMER, H., OSHIMA, M., O'BRIEN, S., PANCIN, J., PAPACHRISTODOULOU, C., PAPADOPOULOS, C., PARADELA, C., PATRONIS, N., PAVLIK, A., PAVLOPOULOS, P., PERROT, L., 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., L. TAIN, J., 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., WISSHAK, K., C. Domingo-Pardo, U. Abbondanno, G. Aert, H. Álvarez-Pol, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becvár, E. Berthoumieux, S. Bisterzo, F. Calviño, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillman, R. Dolfini, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, R. Gallino, I. Goncalve, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamani, D. Karadimo, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionide, M. Krtička, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, M. Oshima, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, K. Wisshak(n_TOF Collaboration), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, 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), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 25.40.Lw, 27.80.+w, 97.10.Cv, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], NEUTRON TIME OF FLIGHT, Nuclear Experiment, S-PROCESS, NEUTRON CAPTURE CROSS SECTION
Abstract: The neutron capture cross section of 204Pb has been measured at the CERN n_TOF installation with high resolution in the energy range from 1 eV to 440 keV. An R-matrix analysis of the resolved resonance region, between 1 eV and 100 keV, was carried out using the SAMMY code. In the interval between 100 keV and 440 keV we report the average capture cross section. The background in the entire neutron energy range could be reliably determined from the measurement of a 208Pb sample. Other systematic effects in this measurement could be investigated and precisely corrected by means of detailed Monte Carlo simulations. We obtain a Maxwellian average capture cross section for 204Pb at kT=30 keV of 79(3) mb, in agreement with previous experiments. However our cross section at kT=5 keV is about 35% larger than the values reported so far. The implications of the new cross section for the s-process abundance contributions in the Pb/Bi region are discussed., Comment: 8 pages, 3 figures, article submitted to Phys. Rev. C
Published: 2007

24. The 139Lan,gamma cross section: Key for the onset of the s-process

Author: Terlizzi, R., Abbondanno, U., Aerts, G., Alvarez, H., Alvarez-Velarde, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Becvar, F., Berthoumieux, E., Calviani, M., Calvino, F., Cano-Ott, D., Capote, R., De Albornoz, A.C., 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., Embid-Segura, M., Ferrant, L., Ferrari, Anthony, Ferreira-Marques, R., Fitzpatrick, L., Frais-Koelbl, H., Fujii, K., Furman, W., Gallino, R., Goncalves, I., Gonzalez-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., Kadi, Y., Kappeler, F., Karamanis, D., Karadimos, D., Kerveno, M., Ketlerov, V., Koehler, P., Konovalov, V., Kossionides, E., Krticka, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., Massimi, C., Mastinu, P., 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., Pignatari, M., 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., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., Vincente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wendler, H., Wiescher, M., Wisshak, K., Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), 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), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, 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), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: level density, Nuclear Theory, s and r process, FOS: Physical sciences, nucleosynthesis, 25.40.Lw, 26.20.+f, 27.60.+j, 97.10.Cv, Nuclear Experiment (nucl-ex), 139La, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, neutron capture, neutron strength function
Abstract: The nuclear resonance parameters and the capture cross section of the neutron magic isotope 139La has been measured n_TOF. The description of the experimental apparata is followed by the data analysis procedures. We extracted the resonance parameters, the main nuclear quantities such as the resonance integral, the average gamma widths for s- and p-waves, the nuclear level densities and the neutron strength functions. These results represent a signifcant improvement over previous data. The deduced Maxwellian-averaged capture cross sections are important for the interpretation of the most recent spectroscopic observations in low metallicity stars., Comment: 50 pages and 9 Figures
Published: 2007

25. New measurement of neutron capture resonances of 209Bi

Author: Domingo-Pardo, C., Abbondanno, U., Aerts, G., Alvarez-Pol, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Becvar, F., Berthoumieux, E., Calvino, F., Cano-Ott, D., Capote, R., Carrillode Albornoz, A., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillman, I., Dolfini, R., Dridi, W., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Fitzpatrick, L., Frais-Koelbl, H., Fujii, K., Furman, W., Gallino, R., Goncalves, I., Gonzalez-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., Kadi, Y., Kappeler, F., Karamanis, D., Karadimos, D., Kerveno, M., Ketlerov, V., Koehler, P., Konovalov, V., Kossionides, E., Krticka, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., Mastinu, P., Mengoni, A., Milazzo, P.M., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., Oshima, M., O'Brien, S., Pancin, J., Papachristodoulou, C., Papadopoulos, C., Paradela, C., Patronis, N., Pavlik, A., Pavlopoulos, P., Perrot, L., 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, Alberto, Villamarin, D., Vincente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Wendler, H., Wiescher, M., and Wisshak, K.
Subjects: Nuclear Physics - Experiment, Nuclear Experiment
Abstract: The neutron capture cross section of Bi209 has been measured at the CERN n TOF facility by employing the pulse-height-weighting technique. Improvements over previous measurements are mainly because of an optimized detection system, which led to a practically negligible neutron sensitivity. Additional experimental sources of systematic error, such as the electronic threshold in the detectors, summing of gamma-rays, internal electron conversion, and the isomeric state in bismuth, have been taken into account. Gamma-ray absorption effects inside the sample have been corrected by employing a nonpolynomial weighting function. Because Bi209 is the last stable isotope in the reaction path of the stellar s-process, the Maxwellian averaged capture cross section is important for the recycling of the reaction flow by alpha-decays. In the relevant stellar range of thermal energies between kT=5 and 8 keV our new capture rate is about 16% higher than the presently accepted value used for nucleosynthesis calculations. At this low temperature an important part of the heavy Pb-Bi isotopes are supposed to be synthesized by the s-process in the He shells of low mass, thermally pulsing asymptotic giant branch stars. With the improved set of cross sections we obtain an s-process fraction of 19(3)% of the solar bismuth abundance, resulting in an r-process residual of 81(3)%. The present (n,gamma) cross-section measurement is also of relevance for the design of accelerator driven systems based on a liquid metal Pb/Bi spallation target. The neutron capture cross section of Bi209 has been measured at the CERN n TOF facility by employing the pulse-height-weighting technique. Improvements over previous measurements are mainly because of an optimized detection system, which led to a practically negligible neutron sensitivity. Additional experimental sources of systematic error, such as the electronic threshold in the detectors, summing of gamma-rays, internal electron conversion, and the isomeric state in bismuth, have been taken into account. Gamma-ray absorption effects inside the sample have been corrected by employing a nonpolynomial weighting function. Because Bi209 is the last stable isotope in the reaction path of the stellar s-process, the Maxwellian averaged capture cross section is important for the recycling of the reaction flow by alpha-decays. In the relevant stellar range of thermal energies between kT=5 and 8 keV our new capture rate is about 16% higher than the presently accepted value used for nucleosynthesis calculations. At this low temperature an important part of the heavy Pb-Bi isotopes are supposed to be synthesized by the s-process in the He shells of low mass, thermally pulsing asymptotic giant branch stars. With the improved set of cross sections we obtain an s-process fraction of 19(3)% of the solar bismuth abundance, resulting in an r-process residual of 81(3)%. The present (n,gamma) cross-section measurement is also of relevance for the design of accelerator driven systems based on a liquid metal Pb/Bi spallation target.
Published: 2006

26. Neutron capture cross section of Th-232 measured at the n_TOF facility at CERN in the unresolved resonance region up to 1 MeV

Author: Aerts, G, Abbondanno, U, Alvarez, H, Alvarez-Velarde, F, Andriamonje, S, Andrzejewski, J, Assimakopoulos, P, Audouin, L, Badurek, G, Baumann, P, Becvar, F, Walter, S, Calvino, F, Wendler, H, Wiescher, M, Wisshak, K, Cano-Ott, D, Capote, R, De Albornoz, AC, Cennini, P, Chepel, V, Embid-Segura, M, Chiaveri, E, Colonna, N, Cortes, G, Couture, A, Cox, J, Dahlfors, M, David, Solomon Arulraj, Dillman, I, Dolfini, R, Domingo-Pardo, C, Ferrant, L, Dridi, W, Duran, I, Eleftheriadis, C, Ferrari, A, Ferreira-Marques, R, Fitzpatrick, L, Frais-Koelbl, H, Fujii, K, Furman, W, Goncalves, I, Gonzalez-Romero, E, Kadi, Y, Goverdovski, A, Gramegna, F, Griesmayer, E, Guerrero, C, Gunsing, F, Haas, B, Haight, R, Heil, M, Herrera-Martinez, A, Igashira, M, Karadimos, D, Isaev, S, Jericha, E, Kappeler, F, Karamanis, D, Kerveno, M, Ketlerov, V, Koehler, P, Konovalov, V, Kossionides, E, Krticka, M, Lamboudis, C, Neves, F, Leeb, H, Lindote, A, Lopes, I, Lozano, M, Lukic, S, Marganiec, J, Marques, L, Marrone, S, Mastinu, P, Mengoni, A, Oberhummer, H, Milazzo, PM, Moreau, C, Mosconi, M, O'Brien, S, Oshima, M, Pancin, J, Papachristodoulou, C, Papadopoulos, C, Paradela, C, Patronis, Nikolaos, Pavlik, A, Rudolf, G, Pavlopoulos, P, Perrot, L, Pigni, MT, Plag, R, Plompen, A, Plukis, A, Poch, A, Pretel, C, Quesada, J, Rauscher, T, Rullhusen, P, Reifarth, R, Rosetti, M, Rubbia, C, Salgado, J, Sarchiapone, L, Savvidis, I, Stephan, C, Taliente, G, Tain, JL, Tassan-Got, L, Tavora, L, Berthoumieux, E, Terlizzi, R, Vannini, G, Vaz, P, Ventura, A, Villamarin, D, Vincente, MC, Vlachoudis, V, Vlastou, R, and Voss, F
Subjects: parameters, elements, u-238, accelerator, range, system, Nuclear Experiment, transmutation, compound nucleus, parity violation
Abstract: We have measured the neutron capture reaction yield of Th-232 at the neutron time-of-flight facility n_TOF at CERN in the energy range from 1 eV to 1 MeV. The average capture cross section has been extracted in the energy range from 4 keV up to 1 MeV with an overall accuracy better than 4%. An independent IAEA evaluation shows good agreement with the data. The average cross section has been expressed in terms of average resonance parameters using the partial waves l=0,1, and 2. ispartof: Physical Review. C, Nuclear physics vol:73 issue:5 pages:1-10 status: published
Published: 2006

27. Neutron capture cross section of 232Th measured at the n_TOF facility at CERN in the unresolved resonance region up to 1 MeV

Author: Aerts, G., Abbondanno, U., Álvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Be Vá, F., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., Carrillo De Albornoz, A., 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., Embid-Segura, M., Ferrant, L., Ferrari, Anthony, Ferreira-Marques, R., Fitzpatrick, L., Frais-Koelbl, H., Fujii, K., Furman, W., Goncalves, I., Gonzalez-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., Krti Ka, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., 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., Taliente, 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., Wisshak, K., Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and 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)
Subjects: 25.40.Lw, 25.40.Ny, 28.20.Fc, Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We have measured the neutron capture reaction yield of 232Th$ at the neutron time-of-flight facility n_TOF at CERN in the energy range from 1 eV to 1 MeV. The average capture cross section has been extracted in the energy range from 4 keV up to 1 MeV with an overall accuracy better than 4%. An independent IAEA evaluation shows good agreement with the data. The average cross section has been expressed in terms of average resonance parameters using the partial waves \ell =0,1, and 2.
Published: 2006

28. New measurement of neutron capture resonances in 209Bi

Author: DOMINGO-PARDO, C., ABBONDANNO, U., AERTS, G., ALVAREZ-POL, H., ALVAREZ-VELARDE, F., ANDRIAMONJE, S., ANDRZEJEWSKI, J., ASSIMAKOPOULOS, P., AUDOUIN, L., BADUREK, G., BAUMANN, P., BECVAR, F., BERTHOUMIEUX, E., CALVINO, F., CANO-OTT, D., CAPOTE, R., DE ALBORNOZ, A.C., CENNINI, P., CHEPEL, V., CHIAVERI, E., COLONNA, N., CORTES, G., COUTURE, A., COX, J., DAHLFORS, M., DAVID, S., DILLMAN, I., DOLFINI, R., DRIDI, W., DURAN, I., ELEFTHERIADIS, C., EMBID-SEGURA, M., FERRANT, L., FERRARI, Anthony, FERREIRA-MARQUES, R., FITZPATRICK, L., FRAIS-KOELBL, H., FUJII, K., FURMAN, W., GALLINO, R., GONCALVES, I., GONZALEZ-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., KADI, Y., KAPPELER, F., KARAMANIS, D., KARADIMOS, D., KERVENO, M., KETLEROV, V., KOEHLER, P., KONOVALOV, V., KOSSIONIDES, E., KRTICKA, M., LAMBOUDIS, C., LEEB, H., LINDOTE, A., LOPES, I., LOZANO, M., LUKIC, S., MARGANIEC, J., MARQUES, L., MARRONE, S., MASTINU, P., MENGONI, A., MILAZZO, P.M., MOREAU, C., MOSCONI, M., NEVES, F., OBERHUMMER, H., OSHIMA, M., O'BRIEN, S., PANCIN, J., PAPACHRISTODOULOU, C., PAPADOPOULOS, C., PARADELA, C., PATRONIS, N., PAVLIK, A., PAVLOPOULOS, P., PERROT, L., 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., WISSHAK, K., Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), European Organization for Nuclear Research (CERN), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci (PôLE UNIVERSITAIRE LéONARD DE VINCI), Pôle Universitaire Léonard de Vinci (PULV), nTOF, 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), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), C.Domingo-Pardo, U.Abbondanno, G.Aert, H.Alvarez-Pol, F.Alvarez-Velarde, S.Andriamonje, J.Andrzejewski, P.Assimakopoulo, L.Audouin, G.Badurek, P.Baumann, F.Becvar, E.Berthomieux, F.Calvino, D.Cano-Ott, R.Capote, A.Carrillo de Albornoz, P.Cennini, V.Chepel, E.Chiaveri, N.Colonna, G.Corte, A.Couture, J.Cox, M.Dahlfor, S.David, I.Dilmann, R.Dolfini, W.Dridi, I.Duran, C.Eleftheriadi, M.Embid-Segura, L.Ferrant, A.Ferrari, R.Ferreira-Marque, L.Fritzpatrick, H.Frais-Koelbl, K.Fujii, W.Furman, R.Gallino, I.Goncalve, E.Gonzalez-Romero, A.Goverdovski, F.Gramegna, E.Griesmayer, C.Guerrero, F.Gunsing, B.Haa, R.Haight, M.Heil, A.Herrera-Martinez, M.Igashira, S.Isaev, E.Jericha, Y.Kadi, F.Käppeler, D.Karamani, D.Karadimo, M.Kerveno, V.Ketlerov, P.E.Koehler, V.Konovalov, E.Kossionide, M.Krticka, C.Lamboudi, H.Leeb, A.Lindote, I.Lope, M.Lozano, S.Lukic, J.Marganiec, L.Marque, S.Marrone, P.Mastinu, A.Mengoni, P.M.Milazzo, C.Moreau, M.Mosconi, F.Neve, H.Oberhummer, M.Oshima, S.O'Brien, J.Pancin, C.Papachristodoulou, C.Papadopoulo, C.Paradela, N.Patroni, A.Pavlik, P.Pavlopoulo, L.Perrot, R.Plag, A.Plompen, A.Pluki, A.Poch, C.Pretel, J.Quesada, T.Rauscher, R.Reifarth, M.Rosetti, C.Rubbia, G.Rudolf, P.Rullhusen, J.Salgado, L.Sarchiapone, I.Savvidi, C.Stephan, G.Tagliente, J.L.Tain, L.Tassan-Got, L.Tavora, R.Terlizzi, G.Vannini, P.Vaz, A.Ventura, D.Villamarin, M.C.Vincente, V.Vlachoudi, R.Vlastou, F.Vo, S.Walter, H.Wendler, and M.Wiescher and K. Wisshak
Subjects: 25.40.Lw, 25.40.Sc, 27.80.+w, 97.10.Cv, GALACTIC CHEMICAL EVOLUTION, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ABUNDANCES, ELEMENTS, FACILITY, Nuclear Experiment (nucl-ex), Nuclear Experiment, CROSS-SECTION, S-PROCESS, DETECTOR, CHRONOMETERS, SYSTEM, STARS
Abstract: The neutron capture cross section of Bi209 has been measured at the CERN n TOF facility by employing the pulse-height-weighting technique. Improvements over previous measurements are mainly because of an optimized detection system, which led to a practically negligible neutron sensitivity. Additional experimental sources of systematic error, such as the electronic threshold in the detectors, summing of gamma-rays, internal electron conversion, and the isomeric state in bismuth, have been taken into account. Gamma-ray absorption effects inside the sample have been corrected by employing a nonpolynomial weighting function. Because Bi209 is the last stable isotope in the reaction path of the stellar s-process, the Maxwellian averaged capture cross section is important for the recycling of the reaction flow by alpha-decays. In the relevant stellar range of thermal energies between kT=5 and 8 keV our new capture rate is about 16% higher than the presently accepted value used for nucleosynthesis calculations. At this low temperature an important part of the heavy Pb-Bi isotopes are supposed to be synthesized by the s-process in the He shells of low mass, thermally pulsing asymptotic giant branch stars. With the improved set of cross sections we obtain an s-process fraction of 19(3)% of the solar bismuth abundance, resulting in an r-process residual of 81(3)%. The present (n,gamma) cross-section measurement is also of relevance for the design of accelerator driven systems based on a liquid metal Pb/Bi spallation target., 10 pages, 5figures, recently published in Phys. Rev. C
Published: 2006

29. New measurement of neutron capture resonances in Bi-209

Author: Domingo-Pardo, C, Abbondanno, U, Aerts, G, Alvarez-Pol, H, Alvarez-Velarde, F, Andriamonje, S, Andrzejewski, J, Assimakopoulos, P, Audouin, L, Badurek, G, Baumann, P, Rudolf, G, Rullhusen, P, Salgado, J, Sarchiapone, L, Savvidis, I, Stephan, C, Tagliente, G, Tain, JL, Tassan-Got, L, Tavora, L, Becvar, F, Terlizzi, R, Vannini, G, Vaz, P, Ventura, A, Villamarin, D, Vincente, MC, Vlachoudis, V, Vlastou, R, Voss, F, Walter, S, Berthoumieux, E, Wendler, H, Wiescher, M, Wisshak, K, Calvino, 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, Solomon Arulraj, Dillman, I, Dolfini, R, Dridi, W, Duran, I, Eleftheriadis, C, Embid-Segura, M, Ferrant, L, Ferrari, A, Ferreira-Marques, R, Fitzpatrick, L, Frais-Koelbl, H, Fujii, K, Furman, W, Gallino, R, Goncalves, I, Gonzalez-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, Kadi, Y, Kappeler, F, Karamanis, D, Karadimos, D, Kerveno, M, Ketlerov, V, Koehler, P, Konovalov, V, Kossionides, E, Krticka, M, Lamboudis, C, Leeb, H, Lindote, A, Lopes, I, Lozano, M, Lukic, S, Marganiec, J, Marques, L, Marrone, S, Mastinu, P, Mengoni, A, Milazzo, PM, Moreau, C, Mosconi, M, Neves, F, Oberhummer, H, Oshima, M, O'Brien, S, Pancin, J, Papachristodoulou, C, Papadopoulos, C, Paradela, C, Patronis, Nikolaos, Pavlik, A, Pavlopoulos, P, Perrot, L, Plag, R, Plompen, A, Plukis, A, Poch, A, Pretel, C, Quesada, J, Rauscher, T, Reifarth, R, Rosetti, M, and Rubbia, C
Subjects: cross-section, stars, elements, facility, detector, abundances, system, Nuclear Experiment, galactic chemical evolution, s-process, chronometers
Abstract: The neutron capture cross section of Bi-209 has been measured at the CERN n_TOF facility by employing the pulse-height-weighting technique. Improvements over previous measurements are mainly because of an optimized detection system, which led to a practically negligible neutron sensitivity. Additional experimental sources of systematic error, such as the electronic threshold in the detectors, summing of gamma-rays, internal electron conversion, and the isomeric state in bismuth, have been taken into account. gamma-Ray absorption effects inside the sample have been corrected by employing a nonpolynomial weighting function. Because Bi-209 is the last stable isotope in the reaction path of the stellar s-process, the Maxwellian averaged capture cross section is important for the recycling of the reaction flow by alpha decays. In the relevant stellar range of thermal energies between kT=5 and 8 keV our new capture rate is about 16% higher than the presently accepted value used for nucleosynthesis calculations. At this low temperature an important part of the heavy Pb-Bi isotopes are supposed to be synthesized by the s-process in the He shells of low mass, thermally pulsing asymptotic giant branch stars. With the improved set of cross sections we obtain an s-process fraction of 19 +/- 3% of the solar bismuth abundance, resulting in an r-process residual of 81 +/- 3%. The present (n,gamma) cross-section measurement is also of relevance for the design of accelerator driven systems based on a liquid metal Pb/Bi spallation target. ispartof: Physical Review. C, Nuclear physics vol:74 issue:2 pages:1-10 status: published
Published: 2006

30. Measurement of capture cross sections of 90,91,92,94,96Zr isotopes at n_TOF

Author: MOREAU, C., FUJII, K., ABBONDANNO, U., AERTS, G., ÁLVAREZ, H., ALVAREZ-VELARDE, F., ANDRIAMONJE, S., MENGONI, A., HEIL, M., KÄPPELER, F., TERLIZZI, R., FURMAN, W., KETLEROV, V., GOVERDOVSKI, A., KONOVALOV, V., ANDRZEJEWSKI, J., ASSIMAKOPOULOS, P., AUDOUIN, L., BADUREK, G., BAUMANN, P., BECVÁR, F., BENLLIURE, J., BERTHOUMIEUX, E., CALVIÑO, F., CANO-OTT, D., CAPOTE, R., CARRILLO DE ALBORNOZ, A., CENNINI, P., CHEPEL, V., CHIAVERI, E., COLONNA, N., CORTES, G., CORTINA, D., COUTURE, A., COX, J., DAVID, S., DOLFINI, R., DOMINGO-PARDO, C., DRIDI, W., DURAN, I., EMBID-SEGURA, M., FERRANT, L., FERRARI, Anthony, FERREIRA-MARQUES, R., FITZPATRICK, L., FRAIS-KÖLBL, H., GUERRERO, C., GONCALVES, I., GALLINO, R., GONZALEZ-ROMERO, E., GRAMEGNA, F., GRIESMAYER, E., GUNSING, F., HAAS, B., HAIGHT, R., HERRERA-MARTINEZ, A., IGASHIRA, M., ISAEV, S., JERICHA, E., KADI, Y., KARAMANIS, D., KARADIMOS, D., KERVENO, M., KOEHLER, P., KOLOKOLOV, D., KOSSIONIDES, E., KRTICKA, M., LAMBOUDIS, C., LEEB, H., LINDOTE, A., LOPES, I., LOZANO, M., LUKIC, S., MARGANIEC, J., MARQUES, L., MARRONE, S., MASTINU, P., M. MILAZZO, P., 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., 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., STÉPHAN, C., TAGLIENTE, G., L. TAIN, J., TASSAN-GOT, L., TAVORA, L., VANNINI, G., VAZ, P., VENTURA, A., VILLAMARIN, D., C. VINCENTE, M., VLACHOUDIS, V., VLASTOU, R., VOSS, F., WENDLER, H., WIESCHER, M., WISSHAK, K., MOSCONI, M., Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and nTOF
Subjects: Large Hadron Collider, Isotope, Chemistry, Radiative capture, 020206 networking & telecommunications, 02 engineering and technology, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, Resonance (particle physics), Nuclear physics, Neutron capture, 25.40.Lw, 0202 electrical engineering, electronic engineering, information engineering, Nuclear astrophysics, 020201 artificial intelligence & image processing, Neutron, Nuclear Experiment
Abstract: PACS; International audience; The neutron capture cross sections for Zr isotopes have important implications in nuclear technologies as well in the field of nuclear astrophysics. The innovative features of the n_TOF CERN facility allowed for an accurate determination of the capture cross sections for these isotopes. The preliminary results of the measurements show capture-resonance strengths systematically smaller than in previously available data.
Published: 2005

31. Measurement of the $^{232}$Th Neutron Capture Cross Section at the CERN n_TOF Facility

Author: Aerts, G., Abbondanno, U., Álvarez, H., Alvarez-Velarde, F., Andriamonje, S., Mosconi, M., Mengoni, A., Heil, M., Käppeler, F., Terlizzi, R., Furman, W., Ketlerov, V., Goverdovski, A., Konovalov, V., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Becvár, F., Benlliure, J., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., Carrillo De Albornoz, A., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Cortina, D., Couture, A., Cox, J., David, S., Dolfini, R., Domingo-Pardo, C., Dridi, W., Duran, I., Embid-Segura, M., Ferrant, L., Ferrari, Anthony, Ferreira-Marques, R., Fitzpatrick, L., Frais-Kölbl, H., Fujii, K., Guerrero, C., Goncalves, I., Gallino, R., Gonzalez-Romero, E., Gramegna, F., Griesmayer, E., Gunsing, F., Haas, B., Haight, R., Herrera-Martinez, A., Igashira, M., Isaev, S., Jericha, E., Kadi, Y., Karamanis, D., Karadimos, D., Kerveno, M., Koehler, P., Kolokolov, D., Kossionides, E., Krticka, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., Mastinu, P., M. Milazzo, P., Moreau, C., 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., 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., Stephan, C., Tagliente, G., L. Tain, J., Tassan-Got, L., Tavora, L., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., C. Vincente, M., Vlachoudis, V., Vlastou, R., Voss, F., Wendler, H., Wiescher, M., Wisshak, K., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and nTOF
Subjects: Mass number, Curium, 25.40.Lw, 27.90.+b, Nuclear Theory, Thorium, chemistry.chemical_element, 020206 networking & telecommunications, Americium, 02 engineering and technology, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, Nuclear physics, chemistry, 0202 electrical engineering, electronic engineering, information engineering, Neutron cross section, Plutonium-241, 020201 artificial intelligence & image processing, Neutron, Nuclear Experiment, Isotopes of thorium
Abstract: PACS; International audience; The use of a fuel cycle based on 232Th can substantially reduce the radiotoxicity of the produced nuclear waste since the lower atomic and mass number of thorium results in a strongly suppressed build-up of the higher actinides and especially americium and curium. The design and realization of nuclear power stations based on the use of thorium, either in a critical or subcritical system, require an accurate knowledge of the 232Th(n,gamma) reaction cross section. We have measured the neutron capture cross section of 232Th at the recently constructed neutron time-of-flight facility n_TOF at CERN in the energy range from 1 eV to 1 MeV. In the resolved resonance region, the resonance parameters have been extracted. In the unresolved resonance region, the neutron capture cross section is given as point-wise data. ©2005 American Institute of Physics
Published: 2004

32. The n_TOF Facility at CERN: performances and first physics results

Author: Abbondanno, U., Aerts, G., Álvarez, H., Alvarez-Velarde, F., Andriamonje, S., Mosconi, M., Mengoni, A., Heil, M., Käppeler, F., Terlizzi, R., Furman, W., Ketlerov, V., Goverdovski, A., Konovalov, V., Andrzejewski, J., Assimakopoulos, P., Audouin, L., Badurek, G., Baumann, P., Becvár, F., Benlliure, J., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., Carrillo De Albornoz, A., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Cortina, D., Couture, A., Cox, J., David, S., Dolfini, R., Domingo-Pardo, C., Dridi, W., Duran, I., Embid-Segura, M., Ferrant, L., Ferrari, Anthony, Ferreira-Marques, R., Fitzpatrick, L., Frais-Kölbl, H., Fujii, K., Guerrero, C., Goncalves, I., Gallino, R., Gonzalez-Romero, E., Gramegna, F., Griesmayer, E., Gunsing, F., Haas, B., Haight, R., Herrera-Martinez, A., Igashira, M., Isaev, S., Jericha, E., Kadi, Y., Karamanis, D., Karadimos, D., Kerveno, M., Koehler, P., Kolokolov, D., Kossionides, E., Krticka, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marques, L., Marrone, S., Mastinu, P., M. Milazzo, P., Moreau, C., 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., 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., Stéphan, C., Tagliente, G., L. Tain, J., Tassan-Got, L., Tavora, L., Vannini, G., Vaz, P., Ventura, A., Villamarin, D., C. Vincente, M., Vlachoudis, V., Vlastou, R., Voss, F., Wendler, H., Wiescher, M., Wisshak, K., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, and European Commission’s 5th Framework programme
Subjects: Physics, Large Hadron Collider, 010308 nuclear & particles physics, Physics::Instrumentation and Detectors, Flux, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, 29.30.Hs, Neutron spectroscopy, Nuclear physics, Time of flight, Duty cycle, Neutron flux, Computer Science::Systems and Control, 0103 physical sciences, Physics::Accelerator Physics, Spallation, Neutron, 010306 general physics, Nuclear Experiment
Abstract: The neutron Time of Flight (n_TOF) facility at CERN is a source of a wide-range (1 eV
Published: 2004

33. Nuclear astrophysics at n-TOF facility, CERN

Author: Tagliente, G., Abbondanno, U., Aerts, G., Alvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Audouin, L., Badurek, G., Baumann, P., Bečvář, F., Belloni, F., Berthoumieux, E., Bisterzo, S., 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., Dillman, I., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrari, A., Ferreira-Marques, R., Fujii, K., Furman, W., Gallino, R., Goncalves, I., Gonzalez-Romero, E., 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., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marrone, S., Martinez, T., Massimi, C., Mastinu, P., Mengoni, A., Milazzo, P. M., Mosconi, M., Francisco Neves, Oberhummer, H., 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., 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., Wisshak, K., Tagliente, G., Abbondanno, U., Aerts, G., Alvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Audouin, L., Badurek, G., Baumann, P., Bečvář, F., Belloni, F., Berthoumieux, E., Bisterzo, S., 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., Dillman, I., Domingo-Pardo, C., Dridi, W., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrari, A., Ferreira-Marques, R., Fujii, K., Furman, W., Gallino, R., Goncalves, I., Gonzalez-Romero, E., 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., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Marrone, S., Martinez, T., Massimi, C., Mastinu, P., Mengoni, A., Milazzo, P.M., Mosconi, M., Neves, F., Oberhummer, H., 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., 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.
Subjects: Nuclear and High Energy Physics, Nuclear Energy and Engineering, Physics::Instrumentation and Detectors, Physics::Accelerator Physics, Energy Engineering and Power Technology, Nuclear Experiment
Abstract: The innovative feature of the n-TOF facility at CERN, in the two experimental areas, (20 m and 200 m flight paths), allow for an accurate determination of the neutron capture cross section for radioactive samples or for isotopes with small neutron capture cross section, of interest for Nuclear Astrophysics. This contribution presents an overview on the astrophysical program carried on at the n-TOF facility, the main results and their implications.

34. Towards the high-accuracy determination of the 238U fission cross section at the threshold region at CERN - n_TOF

Author: S. Valenta, N. Colonna, Carlos Guerrero, M. P. W. Chin, P. Zugec, Marco Calviani, V. Ketlerov, F. Roman, C. Le Naour, Masayuki Igashira, V. Bécares, J. Salgado, N. Patronis, K. Fraval, E. Leal-Cidoncha, G. Cortes, C. Eleftheriadis, Roberto Capote, J. Pancin, L. Cosentino, W. Mondelaers, Thomas Rauscher, A. K. Saxena, Arnaud Ferrari, G. Rudolf, P. Rullhusen, Y. Kadi, J. Marganiec, D. Karadimos, S. Andriamonje, W.I. Furman, M. Embid-Segura, J. Billowes, D. Cano-Ott, C. Santos, S. Heinitz, M. Diakaki, B. Berthier, M. B. Gómez-Hornillos, E. González-Romero, E. Chiaveri, P. Cennini, Christoph Langer, F. Cerutti, M. Kerveno, L. Sarchiapone, Michael Heil, M. J. Vermeulen, L. Plukis, K. Fujii, G. Giubrone, M. Mosconi, A. R. García, M. Wiesher, I. F. Gonçalves, P. F. Mastinu, V. Variale, Roberto Versaci, W. Dridi, M. Brugger, T. Ware, F. Voss, S. O'Brien, E. Mendoza, E. Jericha, Paolo Finocchiaro, Dorothea Schumann, Diego Tarrio, Rene Reifarth, F. Kaeppeler, Stefan Schmidt, P. Pavlopoulos, Javier Praena, S. Lo Meo, E. Griesmayer, S. David, Srinivasan Ganesan, R. Terlizzi, P. Baumann, Vittorio Boccone, D. G. Jenkins, J. M. Quesada, Peter Schillebeeckx, L. Tassan-Got, A. Manousos, D. Bosnar, G. Tagliente, F. Mingrone, J. Andrzejewski, G. Aerts, P. Gurusamy, Ralf Plag, M. Kokkoris, Alberto Mengoni, M. Krtička, F. Calviño, M. A. Cortés-Giraldo, L. Ferrant, I. Duran, H. Álvarez, J. L. Tain, C. Weiß, V. Konovalov, C. Pretel, Niko Kivel, D. Villamarin, L. Perrot, T. Martinez, C. Rubbia, S. Marrone, S. Altstadt, P. Vaz, Alberto Ventura, P. M. Milazzo, Aaron Couture, C. Carrapiço, C. Lampoudis, A. Pavlik, C. Domingo-Pardo, G. Vannini, A. Musumarra, Marco T. Pigni, I. Dillmann, D. Karamanis, T. J. Wright, M. C. Vincente, Christoph A. Stephan, S. Isaev, R. C. Haight, C. Paradela, L. Audouin, R. Sarmento, R. Vlastou, E. Berthoumieux, M. Mastromarco, L. Tavora, Massimo Barbagallo, Anton Wallner, E. Dupont, A. J. M. Plompen, James L. Cox, Corrie S. Moreau, Jeri Kroll, C. Lederer, Maria Victoria Lozano, A. Riego, S. Walter, A. Goverdovski, F. Alvarez-Velarde, Gerald Badurek, Roberto Losito, F. Gramegna, F. Belloni, F. Gunsing, A. Poch, Cristian Massimi, Rugard Dressler, K. Wisshak, Mario Weigand, F. Becvar, M. Mirea, A. Tsinganis, H. Leeb, J. Perkowski, L.S. Leong, Vasilis Vlachoudis, Serot, O., 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., Zugec, P., Universitat Politècnica de Catalunya. Departament de Física, and Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group
Subjects: Nuclear reaction, Fission, QC1-999, Nuclear Theory, Nuclear physics, Mechanical engineering, U238, neutron fission, 7. Clean energy, 01 natural sciences, Fissió nuclear, ANGULAR-DISTRIBUTION, Subatomär fysik, Cross section (physics), 0103 physical sciences, Subatomic Physics, Neutron, 010306 general physics, Nuclear Experiment, Energies::Energia nuclear [Àrees temàtiques de la UPC], Physics, Large Hadron Collider, 010308 nuclear & particles physics, Nuclear fission, Física nuclear
Abstract: The U-238 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 U-238 fission cross section has been measured relative to the U-235 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

35. High-energy Neutron-induced Fission Cross Sections of Natural Lead and Bismuth-209

Author: D. Tarrio, L. Tassan-Got, L. Audouin, B. Berthier, L. Ferrant, S. Isaev, C. Le Naour, C. Stephan, D. Trubert, S. David, I. Duran, C. Paradela, H. Alvarez, U. Abbondanno, K. Fujii, P. M. Milazzo, C. Moreau, G. Aerts, F. Alvarez-Velarde, D. Cano-Ott, M. Embid-Segura, E. Gonzalez-Romero, C. Guerrero, T. Martinez, D. Villamarin, M. C. Vicente, S. Andriamonje, E. Berthoumieux, W. Dridi, F. Gunsig, J. Pancin, L. Perrot, A. Plukis, J. Andrzejewski, J. Marganiec, P. Assimakopoulos, D. Karadimos, D. Karamanis, C. Papachristodoulou, N. Patronis, G. Badurek, E. Jericha, H. Leeb, H. Oberhummer, M. T. Pigni, P. Baumann, M. Kerveno, S. Lukic, G. Rudolf, F. Becvar, M. Krticka, F. Calvino, G. Cortes, A. Poch, C. Pretel, M. Calviani, F. Gramegna, P. Mastinu, J. Praena, R. Capote, C. Carrapico, P. Cennini, E. Chiaveri, M. Dahlfors, A. Ferrari, I. Goncalves, A. Herrera-Martinez, Y. Kadi, L. Sarchiapone, V. Vlachoudis, V. Chepel, R. Ferreira-Marques, A. Lindote, I. Lopes, F. Neves, N. Colonna, G. Tagliente, R. Terlizzi, A. Couture, J. Cox, S. Marrone, S. O'brien, M. Wiescher, I. Dillmann, M. Heil, F. Kappeler, M. Mosconi, F. Voss, S. Walter, K. Wisshak, C. Domingo-Pardo, R. Plag, A. Plompen, J. L. Tain, C. Eleftheriadis, I. Savvidis, W. Furman, B. Haas, R. Haight, R. Reifarth, M. Igashira, P. Koehler, E. Kossionides, C. Lampoudis, M. Lozano, J. Quesada, C. Massimi, G. Vannini, A. Mengoni, M. Oshima, C. Papadopoulos, A. Pavlik, P. Pavlopoulos, R. Vlastou, T. Rauscher, C. Rubbia, P. Rullhusen, J. Salgado, C. Santos, L. Tavora, P. Vaz, A. Ventura, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, 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, Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, 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), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Tarrno D., Tassan-Got L., Audouin L., Berthier B., Ferrant L., Isaev S., Naour C. Le, Stephan C., Trubert D., David S., Duran I., Paradela C., Alvarez H., Abbondanno U., Fujii K., Milazzo P. M., Moreau C., Aerts G., Alvarez-Velarde F., Cano-Ott D., Embid-Segura M., Gonzalez-Romero E., Guerrero C., Martinez T., Villamarin D., Vicente M. C., Andriamonje S., Berthoumieux E., Dridi W., Gunsig F., Pancin J., Perrot L., Plukis A., Andrzejewski J., Marganiec J., Assimakopoulos P., Karadimos D., Karamanis D., Papachristodoulou C., Patronis N., Badurek G., Jericha E., Leeb H., Oberhummer H., Pigni M. T., Baumann P., Kerveno M., Lukic S., Rudolf G., Becvar F., Krticka M., Calvino F., Cortes G., Poch A., Pretel C., Calviani M., Gramegna F., Mastinu P., Praena J., Capote R., Carrapico C., Cennini P., Chiaveri E., Dahlfors M., Ferrari A., Goncalves I., Herrera-Martinez A., Kadi Y., Sarchiapone L., Vlachoudis V., Chepel V., Ferreira-Marques R., Lindote A., Lopes I., Neves F., Colonna N., Tagliente G., Terlizzi R., Couture A., Cox J., Marrone S., Obrien S., Wiescher M., Dillmann I., Heil M., Kappeler F., Mosconi M., Voss F., Walter S., Wisshak K., Domingo-Pardo C., Plag R., Plompen A., Tain J. L., Eleftheriadis C., Savvidis I., Furman W., Haas B., Haight R., Reifarth R., Igashira M., Koehler P., Kossionides E., Lampoudis C., Lozano M., Quesada J., Massimi C., Vannini G., Mengoni A., Oshima M., Papadopoulos C., Pavlik A., Pavlopoulos P., Vlastou R., Rauscher T., Rubbia C., Rullhusen P., Salgado J., Santos C., Tavora L., Vaz P., and Ventura A.
Subjects: Pb-nat(n, Fission, Nuclear data, Nuclear Theory, General Physics and Astronomy, chemistry.chemical_element, f), Energies::Energia nuclear::Reactors nuclears de fissió [Àrees temàtiques de la UPC], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, Bismuth, Nuclear physics, Nuclear reactors, Reactors nuclears, Neutron, Spallation, Nuclear Experiment, EMERGING NUCLEAR TECHNOLOGIES, Neutron-induced ssion reactions, Energies::Energia nuclear [Àrees temàtiques de la UPC], Physics, Cluster decay, Nuclear energy, Bi-209(n, n TOF facility, TIME-OF-FLIGHT, chemistry, Spallation neutron source, Energia nuclear, Neutron source, PPAC fission detector, Spallation Neutron Source
Abstract: The CERN Neutron Time-Of-Flight (n-TOF) facility is well suited to measure small neutron-induced fission cross sections, as those of subactinides. The cross section ratios of {sup nat}Pb and {sup 209}Bi relative to {sup 235}U and {sup 238}U were measured using PPAC detectors. The fragment coincidence method allows to unambiguously identify the fission events. The present experiment provides the first results for neutron-induced fission up to 1 GeV for {sup nat}Pb and {sup 209}Bi. A good agreement with previous experimental data below 200 MeV is shown. The comparison with proton-induced fission indicates that the limiting regime where neutron-induced and proton-induced fission reach equal cross section is close to 1 GeV.
Published: 2011

36. Neutron-induced fission cross section of 245Cm: New results from data taken at the time-of-flight facility n_TOF

Author: G. Cortes, Gerald Badurek, P. Cennini, J. Pancin, E. Chiaveri, D. Cano-Ott, C. Eleftheriadis, B. Berthier, Michael Heil, E. Kossionides, J. Salgado, Javier Praena, C. Santos, I. Duran, M. Embid-Segura, S. Walter, Roberto Capote, Yacine Kadi, A. Poch, F. Bečvář, E. Mendoza, M. C. Vincente, J. Marganiec, S. Andriamonje, M. Dahlfors, Manuel Lozano, F. Neves, Ralf Plag, M. Mosconi, V. Ketlerov, P. Vaz, L. Ferrant, Peter Schillebeeckx, Iris Dillmann, D. Villamarin, W. Dridi, P. F. Mastinu, J. Cox, Alberto Ventura, S. Galanopoulos, Aaron Couture, Marco T. Pigni, G. Vannini, C. Lederer, C. Papadopoulos, Laurent Tassan-Got, C. Stephan, C. Lampoudis, Alfredo Ferrari, R. Ferreira-Marques, S. Marrone, A. Pavlik, C. Domingo-Pardo, L. Perrot, M. Kerveno, S. David, L. Sarchiapone, M. Meaze, G. Tagliente, M. Rosetti, R. Terlizzi, E. Gonzalez-Romero, G. Aerts, Carlos Guerrero, U. Abbondanno, F. Calviño, R. C. Haight, H. Leeb, P. E. Koehler, V. Chepel, Heinz Oberhummer, I. Goncalves, S. O'Brien, A. Plukis, P. Assimakopoulos, Mario Barbagallo, I. Savvidis, L. Tavora, Thomas Rauscher, Marco Calviani, L. Audouin, D. Karadimos, Michael Wiescher, H. Álvarez, W.I. Furman, P. Baumann, K. Wisshak, V. Variale, M. Krtička, R. Sarmento, J. L. Tain, A. J. M. Plompen, A. Herrera-Martinez, N. Patronis, P. Rullhusen, G. Rudolf, A. Lindote, T. Martinez, I. Lopes, C. A. Papachristodoulou, R. Vlastou, Alberto Mengoni, B. Haas, C. Carrapiço, Rene Reifarth, M. Igashira, P. Pavlopoulos, F. Gunsing, J. M. Quesada, Cristian Massimi, C. Paradela, S. Lukic, E. Jericha, D. Karamanis, E. Berthoumieux, F. Voss, F. Gramegna, Nicola Colonna, C. Moreau, P. M. Milazzo, J. Andrzejewski, Carlo Rubbia, V. Vlachoudis, V. Konovalov, G. Giubrone, C. Pretel, K. Fujii, Fabio Belloni, F. Käppeler, A. Goverdovski, F. Alvarez-Velarde, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, Calviani M., Meaze M. H., Colonna N., Praena J., Abbondanno U., Aerts G., Alvarez H., Alvarez-Velarde F., Andriamonje S., Andrzejewski J., Assimakopoulos P., Audouin L., Badurek G., Barbagallo M., Baumann P., Bečvář F., Belloni F., Berthier B., 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., Ferrant L., Ferrari A., Ferreira-Marques R., Fujii K., Furman W., Galanopoulos S., Giubrone G., Gonçalves 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., Ketlerov V., Kerveno M., Koehler P., Konovalov V., Kossionides E., Krtička M., Lampoudis C., Lederer 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., Pretel C., Quesada J., Rauscher T., Reifarth R., Rosetti M., Rubbia C., Rudolf G., Rullhusen P., Salgado J., Santos C., Sarchiapone L., Sarmento R., Savvidis I., Schillebeeckx P., Stephan C., Tagliente G., Tain J. L., Tassan-Got L., Tavora L., Terlizzi R., Vannini G., Variale V., Vaz P., Ventura A., Villamarin D., Vincente M. C., Vlachoudis V., Vlastou R., Voss F., Walter S., Wiescher M., Wisshak K., 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), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Nuclear and High Energy Physics, Range (particle radiation), Isotope, 010308 nuclear & particles physics, Fission, Nuclear Theory, Absolute value, Energies::Energia nuclear::Reactors nuclears de fissió [Àrees temàtiques de la UPC], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Neutron temperature, NEUTRON INDUCED FISSION, Fissió nuclear, Nuclear physics, Time of flight, Cross section (physics), 0103 physical sciences, Fission cross sections, Neutron, 010306 general physics, Nuclear Experiment, TIME OF FLIGHT
Abstract: The neutron-induced fission cross section of 245Cm was measured at n-TOF in a wide energy range and with high resolution. The energy dependence, measured in a single measurement from 30 meV to 1 MeV neutron energy, has been determined with 5% accuracy relative to the 235U(n,f) cross section. In order to reduce the uncertainty on the absolute value, the data have been normalized at thermal energy to recent measurements performed at ILL and BR1. In the energy range of overlap, the results are in fair agreement with some previous measurements and confirm, on average, the evaluated cross section in the ENDF/B-VII.0 database, although sizable differences are observed for some important resonances below 20 eV. A similar behavior is observed relative to JENDL/AC-2008, a reactor-oriented database for actinides. The new results contribute to the overall improvement of the databases needed for the design of advanced reactor systems and may lead to refinements of fission models for the actinides. Comisión Europea FIKW-CT-2000-00107 249671
Published: 2012

37. Study of Photon Strength Function of Actinides: the Case of 235U, 238Np and 241Pu

Author: M. Mosconi, A. Goverdovski, S. O'Brien, F. Alvarez-Velarde, I. Dillman, Gerald Badurek, R. Terlizzi, Carlos Guerrero, U. Abbondanno, Heinz Oberhummer, Marco Calviani, Christoph A. Stephan, S. Walter, D. Karamanis, R. Dolfini, Ralf Plag, J. Salgado, W.I. Furman, M. Kerveno, L. Tavora, C. A. Papachristodoulou, A. Poch, M. C. Vicente, E. Kossionides, J. Pancin, P. Rullhusen, N. Colonna, Thomas Rauscher, S. Isaev, A. Herrera-Martinez, N. Patronis, Javier Praena, M. Dahlfors, F. Neves, P. M. Milazzo, D. Karadimos, P. Vaz, C. Eleftheriadis, I. Duran, I. Savvidis, Rene Reifarth, D. Cano-Ott, E. Gonzalez-Romero, G. Aerts, Y. Kadi, Aaron Couture, P. Pavlopoulos, A. Mengoni, H. Álvarez, S. David, H. Frais-Koelbl, J. L. Tain, V. Ketlerov, C. Lampoudis, G. Tagliente, A. Plukis, A. Pavlik, Manuel Lozano, C. Domingo-Pardo, A. Carrillo de Albornoz, L. Ferrant, Martin Heil, J. M. Quesada, J. Marganiec, R. C. Haight, C. T. Papadopoulos, S. Andriamonje, L. Tassan-Got, C. Paradela, L. Sarchiapone, M. Meaze, R. Vlastou, E. Jericha, C. Rubbia, T. Martiez, C. Pretel, E. Berthoumieux, E. Chiaveri, M. Rosetti, P. F. Mastinu, Isabel S. Gonçalves, L. Audouin, S. Marrone, P. E. Koehler, E. Mendoza, Michael Wiescher, K. Fujii, M. Krtička, B. Haas, D. Villamarin, R. Ferreira-Marques, Marco T. Pigni, Anthony Ferrari, L. Marques, E. Griesmayer, Fabio Belloni, L. Perrot, F. Käppeler, V. Chepel, G. Rudolf, P. Baumann, W. Dridi, Masayuki Igashira, A. Ventura, K. Wisshak, Isabel Lopes, Corrie S. Moreau, A. J. M. Plompen, H. Wendler, S. Lukic, James L. Cox, F. Calviño, F. Voss, H. Leeb, F. Becvar, Vasilis Vlachoudis, F. Gramegna, F. Gunsing, Cristian Massimi, G. Cortes, Roberto Capote, P.A. Assimakopoulos, G. Vannini, M. Oshima, J. Andrzejewski, V. Konovalov, A. Lindote, P. Cennini, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Guerrero C., Alvarez-Velarde F., Cano-Ott D., Martiez T., Mendoza E., Villamarin D., Colonna N., H. Meaze M., Marrone S., Tagliente G., Terlizzi R., Belloni F., Abbondanno U., Fujii K., M. Milazzo P., Moreau C., Aerts G., Berthoumieux E., Dridi W., Gunsing F., Pancin J., Perrot L., Plukis A., Alvarez H., Duran I., Paradela C., Andriamonje S., Calviani M., Chiaveri E., Gonzalez-Romero E., Kadi Y., C. Vicente M., Vlachoudis V., Andrzejewski J., Marganiec J., Assimakopoulos P., Karadimos D., Karamanis D., Papachristodoulou C., Patronis N., Audouin L., David S., Ferrant L., Isaev S., Stephan C., Tassan-Got L., Badurek G., Jericha E., Leeb H., Oberhummer H., T. Pigni M., Baumann P., Kerveno M., Lukic S., Rudolf G., Becvar F., Krticka M., Calvino F., Capote R., Carrillo De Albornoz A., Marques L., Salgado J., Tavora L., Vaz P., Cennini P., Dahlfors M., Ferrari A., Gramegna F., Herrera-Martinez A., Mastinu P., Praena J., Sarchiapone L., Wendler H., Chepel V., Ferreira-Marques R., Goncalves I., Lindote A., Lopes I., Neves F., Cortes G., Poch A., Pretel C., Couture A., Cox J., Obrien S., Wiescher M., Dillman I., Kappeler F., Mosconi M., Plag R., Voss F., Walter S., Wisshak K., Dolfini R., Rubbia C., Domingo-Pardo C., L. Tain J., Eleftheriadis C., Savvidis I., Frais-Koelbl H., Griesmayer E., Furman W., Konovalov V., Goverdovski A., Ketlerov V., Haas B., Haight R., Reifarth R., Heil M., Igashira M., Koehler P., Kossionides E., Lampoudis C., Lozano M., Quesada J., Massimi C., Vannini G., Mengoni A., Oshima M., Papadopoulos C., Vlastou R., Pavlik A., Pavlopoulos P., Plompen A., Rullhusen P., Rauscher T., Rosetti M., Ventura A., Département d'Electronique, des Détecteurs et d'Informatique pour la Physique (ex SEDI) (DEDIP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), TOF, 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), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Work (thermodynamics), Photon, 010308 nuclear & particles physics, General Physics and Astronomy, radiative capture cross section, Actinide, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], NEUTRON INDUCED REACTIONS, Electromagnetisme, 01 natural sciences, Spectral line, Nuclear physics, Neutron capture, Electromagnetism, Excited state, 0103 physical sciences, Photon Strength Function, Atomic physics, 010306 general physics, Absorption (electromagnetic radiation), Nuclear Experiment, Energy (signal processing)
Abstract: The decay from excited levels in medium and heavy nuclei can be described in a statistical approach by means of Photon Strength Functions and Level Density distributions. The study of electromagnetic cascades following neutron capture based on the use of high e ciency detectors has been shown to be well suited for probing the properties of the Photon Strength Function of heavy (high level density) and/or radioactive (high background) nuclei. In this work we have investigated for the rst time the validity of the recommended PSF of actinides, in particular 235U, 238Np and 241Pu. Our study includes the search for resonance structures in the PSF below Sn and draws conclusions regarding their existence and their characteristics in terms of energy, width and electromagnetic nature.
Published: 2011

38. Measurement of the neutron-induced fission cross-section of 241Am at the time-of-flight facility n_TOF

Author: S. David, G. Tagliente, P. E. Koehler, G. Cortes, D. Tarrío, A. J. M. Plompen, A. Goverdovski, F. Alvarez-Velarde, Manuel Lozano, M. Krtička, J. Salgado, F. Calviño, A. Poch, E. Kossionides, G. Rudolf, I. Lopes, Marco T. Pigni, I. Dillmann, Roberto Capote, R. Ferreira-Marques, T. Martinez, L. Tavora, M. Kerveno, Gerald Badurek, J. Marganiec, Javier Praena, S. Andriamonje, C. Carrapiço, M. Embid-Segura, James L. Cox, E. Gonzalez-Romero, E. Chiaveri, G. Aerts, P. F. Mastinu, G. Vannini, M. Dahlfors, P. Vaz, Mario Barbagallo, Corrie S. Moreau, H. Leeb, E. Jericha, F. Belloni, L. Sarchiapone, Alberto Ventura, Rene Reifarth, Aaron Couture, K. Wisshak, K. Fujii, I. Duran, M. Meaze, A. Pavlik, Michael Heil, J. M. Quesada, P. Rullhusen, L. Tassan-Got, C. Domingo-Pardo, A. Herrera-Martinez, N. Patronis, B. Haas, C. Eleftheriadis, A. Plukis, R. C. Haight, Arnaud Ferrari, S. Walter, Thomas Rauscher, C. Paradela, F. Gunsing, W.I. Furman, A. Lindote, Alberto Mengoni, C. Santos, W. Dridi, R. Vlastou, Cristian Massimi, Michael Wiescher, D. Karadimos, Masayuki Igashira, F. Neves, J. Andrzejewski, P. Pavlopoulos, P. Cennini, Y. Kadi, F. Bečvář, P. M. Milazzo, D. Karamanis, L. Perrot, C. T. Papadopoulos, F. Käppeler, M. Rosetti, F. Voss, Marco Calviani, M. Mosconi, D. Cano-Ott, V. Chepel, C. Pretel, C. Stephan, S. O'Brien, D. Villamarin, P. Baumann, R. Terlizzi, C. Rubbia, L. Audouin, C. A. Papachristodoulou, Isabel S. Gonçalves, S. Marrone, H. Álvarez, C. Lamboudis, J. L. Tain, Ralf Plag, Carlos Guerrero, Heinz Oberhummer, M. C. Vincente, U. Abbondanno, I. Savvidis, E. Berthoumieux, Nicola Colonna, Vasilis Vlachoudis, S. Lukic, F. Gramegna, 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., Wisshak K., Ventura, A., and Rosetti, M.
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Fission, Hadron, Nuclear data, FISSION, 01 natural sciences, NEUTRON TIME-OF-FLIGHT, Nuclear physics, Time of flight, 13. Climate action, Neutron flux, 0103 physical sciences, Ionization chamber, Nuclear fusion, Neutron, MEASUREMENTS, Nuclear Experiment, 010306 general physics
Abstract: The neutron-induced fission cross-section of 241Am has been measured relative to the standard fission cross-section of 235U between 0.5 and 20MeV. The experiment was performed at the CERN n_TOF facility. Fission fragments were detected by a fast ionization chamber by discriminating against the α- particles from the high radioactivity of the samples. The high instantaneous neutron flux and the low background of the n_TOF facility enabled us to obtain uncertainties of ≈ 5%. With the present results it was possible to resolve discrepancies between previous data sets and to confirm current evaluations, thus providing important information for design studies of future reactors with improved fuel burn-up. © The Author(s) 2013.
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39. Measurement of the neutron-induced fission cross-section of 243Am relative to 235U from 0.5 to 20 MeV

Author: Rene Reifarth, Manuel Lozano, J. M. Quesada, L. Tassan-Got, M. Krtička, G. Aerts, Mario Barbagallo, I. Duran, I. Dillmann, E. Berthoumieux, R. Ferreira-Marques, T. Martinez, L. Perrot, S. David, V. Chepel, L. Audouin, M. C. Vincente, P. Baumann, J. Marganiec, S. Andriamonje, C. Santos, Ralf Plag, G. Tagliente, L. Tavora, Masayuki Igashira, C. T. Papadopoulos, F. Gunsing, F. Bečvář, M. Dahlfors, B. Haas, U. Abbondanno, E. Chiaveri, P. F. Mastinu, J. Andrzejewski, G. Cortes, P. Rullhusen, Carlos Guerrero, P. Vaz, D. Karamanis, Carlo Rubbia, A. Goverdovski, Nicola Colonna, F. Alvarez-Velarde, Heinz Oberhummer, Vasilis Vlachoudis, Alberto Ventura, Aaron Couture, E. Kossionides, A. Herrera-Martinez, N. Patronis, I. Savvidis, Isabel S. Gonçalves, Gerald Badurek, R. C. Haight, D. Tarrío, Cristian Massimi, A. Pavlik, W. Dridi, C. Domingo-Pardo, S. Marrone, P. Cennini, Arnaud Ferrari, E. Jericha, C. Paradela, S. Lukic, M. Kerveno, F. Käppeler, M. Mosconi, J. Salgado, D. Cano-Ott, P. E. Koehler, A. Poch, W.I. Furman, C. Stephan, S. O'Brien, P. Pavlopoulos, S. Walter, Javier Praena, C. A. Papachristodoulou, Alberto Mengoni, R. Terlizzi, A. Lindote, K. Wisshak, Michael Wiescher, A. Plukis, F. Gramegna, D. Villamarin, Roberto Capote, M. Embid-Segura, F. Neves, H. Álvarez, Marco T. Pigni, P. M. Milazzo, C. Lamboudis, J. L. Tain, F. Calviño, H. Leeb, F. Belloni, G. Vannini, Michael Heil, C. Pretel, C. Carrapiço, A. J. M. Plompen, E. Gonzalez-Romero, G. Rudolf, I. Lopes, James L. Cox, Corrie S. Moreau, K. Fujii, L. Sarchiapone, M. Meaze, M. Rosetti, F. Voss, J. Pancin, R. Vlastou, C. Eleftheriadis, Y. Kadi, Thomas Rauscher, D. Karadimos, Marco Calviani, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), 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), TOF, Belloni F., Calviani M., Colonna N., Mastinu P., Milazzo P., 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., 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., 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., Tarrio D., Tassan-Got L., Tavora L., Terlizzi R., Vannini G., Vaz P., Ventura A., Villamarin D., Vincente M., Vlachoudis V., Vlastou R., Voss F., Walter S., Wiescher M., Wisshak K., Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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 and High Energy Physics, NEUTRON-INDUCED FISSION, Fission, Flux, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Nuclear physics, Nuclear reactors, Reactors nuclears, 0103 physical sciences, Nuclear fusion, Neutron, 010306 general physics, Nuclear Experiment, Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Range (particle radiation), Large Hadron Collider, 010308 nuclear & particles physics, Time of flight, TIME-OF-FLIGHT, Energies::Energia nuclear::Reactors nuclears de fusió [Àrees temàtiques de la UPC], Ionization chamber, CROSS SECTION
Abstract: See paper for full list of authors.; The ratio of the neutron-induced fission cross-sections of 243Am and 235U was measured in the energy range from 0.5 to 20 MeV with uncertainties of ≈ 4%. The experiment was performed at the CERN n_TOF facility using a fast ionization chamber. With the good counting statistics that could be achieved thanks to the high instantaneous flux and the low backgrounds, the present results are useful for resolving discrepancies in previous data sets and are important for future reactors with improved fuel burn-up.
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