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Measurement and analysis of the Am-241 neutron capture cross section at the n_TOF facility at CERN

Mendoza, E. and Cano-Ott, D. and Altstadt, S. and Andriamonje, S. and Andrzejewski, J. and Audouin, L. and Balibrea, J. and Becares, V. and Barbagallo, M. and Becvar, F. and Belloni, F. and Berthier, B. and Berthoumieux, E. and Billowes, J. and Bosnar, D. and Brugger, M. and Calvino, F. and Calviani, M. and Carrapico, C. and Cerutti, F. and Chiaveri, E. and Chin, M. and Colonna, N. and Cortes, G. and Cortes-Giraldo, M. A. and Diakaki, M. and Dillmann, I. and Domingo-Pardo, C. and Duran, I. and Dzysiuk, N. and Eleftheriadis, C. and Ferrari, A. and Fraval, K. and Furman, V. and Gomez-Hornillos, M. B. and Ganesan, S. and Garcia, A. R. and Giubrone, G. and Goncalves, I. F. and Gonzalez, E. and Goverdovski, A. and Gramegna, F. and Griesmayer, E. and Guerrero, C. and Gunsing, F. and Gurusamy, P. and Heftrich, T. and Heinitz, S. and Hernandez-Prieto, A. and Heyse, J. and Jenkins, D. G. and Jericha, E. and Kaeppeler, F. and Kadi, Y. and Karadimos, D. and Katabuchi, T. and Ketlerov, V. and Khryachkov, V. and Koehler, P. and Kokkoris, M. and Kroll, J. and Krticka, M. and Lampoudis, C. and Langer, C. and Leal-Cidoncha, E. and Lederer, C. and Leeb, H. and Leong, L. S. and Lerendegui-Marco, J. and Licata, M. and Lopez, D. and Losito, R. and Manousos, A. and Marganiec, J. and Martinez, T. and Massimi, C. and Mastinu, P. and Mastromarco, M. and Mengoni, A. and Milazzo, P. M. and Mingrone, F. and Mirea, M. and Mondelaers, W. and Paradela, C. and Pavlik, A. and Perkowski, J. and Plompen, A. J. M. and Praena, J. and Quesada, J. M. and Rauscher, T. and Reifarth, R. and Riego-Perez, A. and Robles, M. and Roman, F. and Rubbia, C. and Ryan, J. A. and Sabate-Gilarte, M. and Sarmento, R. and Saxena, A. and Schillebeeckx, P. and Schmidt, S. and Schumann, D. and Sedyshev, P. and Tagliente, G. and Tain, J. L. and Tarifeno-Saldiyia, A. and Tarrio, D. and Tassan-Got, L. and Tsinganis, A. and Valenta, S. and Vannini, G. and Variale, V. and Vaz, P. and Ventura, A. and Vermeulen, M. J. and Versaci, R. and Vlachoudis, V. and Vlastou, R. and Wallner, A. and Ware, T. and Weigand, M. and Weiss, C. and Wright, T. and Zugec, P.. (2018) Measurement and analysis of the Am-241 neutron capture cross section at the n_TOF facility at CERN. Physical Review C, 97 (5). 054616.

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Abstract

The Am-241(n, gamma) cross section has been measured at the n_TOF facility at CERN with the n_TOF BaF2 Total Absorption Calorimeter in the energy range between 0.2 eV and 10 keV. Our results are analyzed as resolved resonances up to 700 eV, allowing a more detailed description of the cross section than in the current evaluations, which contain resolved resonances only up to 150-160 eV. The cross section in the unresolved resonance region is perfectly consistent with the predictions based on the average resonance parameters deduced from the resolved resonances, thus obtaining a consistent description of the cross section in the full neutron energy range under study. Below 20 eV, our results are in reasonable agreement with JEFF-3.2 as well as with the most recent direct measurements of the resonance integral, and differ up to 20-30% with other experimental data. Between 20 eV and 1 keV, the disagreement with other experimental data and evaluations gradually decreases, in general, with the neutron energy. Above 1 keV, we find compatible results with previously existing values.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Astrophysik (Thielemann)
UniBasel Contributors:Rauscher, Thomas
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:2469-9985
e-ISSN:2469-9993
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:13 Aug 2018 11:11
Deposited On:13 Aug 2018 11:11

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