Measurement and analysis of the Am 241 (n, γ) cross section with liquid scintillator detectors using time-of-flight spectroscopy at the n-TOF facility at CERN

Author(s)

K. Fraval, F. Gunsing, S. Altstadt, J. Andrzejewski, L. Audouin, M. Barbagallo, V. Becares, F. Becvar, F. Belloni, E. Berthoumieux, J. Billowes, V. Boccone, D. Bosnar, M. Brugger, M. Calviani, F. Calvino, D. Cano-Ott, C. Carrapico, F. Cerutti, E. Chiaveri, M. Chin, N. Colonna, G. Cortes, M. A. Cortes-Giraldo, M. Diakaki, C. Domingo-Pardo, I. Duran, R. Dressler, N. Dzysiuk, C. Eleftheriadis, A. Ferrari, S. Ganesan, A. R. Garcia, G. Giubrone, M. B. Gomez-Hornillos, I. F. Goncalves, E. Gonzalez-Romero, E. Griesmayer, C. Guerrero, P. Gurusamy, A. Hernandez-Prieto, D. G. Jenkins, E. Jericha, Y. Kadi, F. Kappeler, D. Karadimos, N. Kivel, P. Koehler, M. Kokkoris, M. Krticka, J. Kroll, C. Lampoudis, C. Langer, E. Leal-Cidoncha, C. Lederer, H. Leeb, L. S. Leong, R. Losito, A. Mallick, A. Manousos, J. Marganiec, T. Martinez, C. Massimi, P. F. Mastinu, M. Mastromarco, M. Meaze, E. Mendoza, A. Mengoni, P. M. Milazzo, F. Mingrone, M. Mirea, W. Mondalaers, C. Paradela, Andreas Pavlik, J. Perkowski, A. Plompen, J. Praena, J. M. Quesada, T. Rauscher, R. Reifarth, A. Riego, M. S. Robles, F. Roman, C. Rubbia, M. Sabate-Gilarte, R. Sarmento, A. Saxena, P. Schillebeeckx, S. Schmidt, D. Schumann, G. Tagliente, J. L. Tain, D. Tarrio, L. Tassan-Got, A. Tsinganis, S. Valenta, G. Vannini, V. Variale, P. Vaz, A. Ventura, R. Versaci, M. J. Vermeulen, V. Vlachoudis, R. Vlastou, A. Wallner, T. Ware, M. Weigand, C. Weiss, T. Wright, P. Zugec

Abstract

The Am-241(n,gamma) cross section has been measured at the n_TOF facility at CERN using deuterated benzene liquid scintillators, commonly known as C6D6 detectors, and time-of-flight spectrometry. The results in the resolved resonance range bring new constraints to evaluations below 150 eV, and the energy upper limit was extended from 150 to 320 eV with a total of 172 new resonances not present in current evaluations. The thermal capture cross section was found to be sigma(th) = 678 +/- 68 b, which is in good agreement with evaluations and most previous measurements. The capture cross section in the unresolved resonance region was extracted in the remaining energy range up to 150 keV, and found to be larger than current evaluations and previous measurements.

Organisation(s)

Isotope Physics

External organisation(s)

IRFU CEA-Saclay laboratory , University of Lodz, Charles University Prague, European Organization for Nuclear Research (CERN), University of Manchester, University of Zagreb, Universitat Politècnica de Catalunya, Universidade Técnica de Lisboa, Universidad de Sevilla, National Technical University of Athens (NTUA), Instituto de Física Corpuscular (IFIC), Universidade de Santiago de Compostela (USC), Paul Scherrer Institute, Istituto Nazionale di Fisica Nucleare (INFN), Roma, Aristotle University of Thessaloniki, Bhabha Atomic Research Center, Technische Universität Wien, Karlsruher Institut für Technologie, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements, Universität Basel, Centre National De La Recherche Scientifique (CNRS), University of Bologna, Centro de Investigaciones Energeticas Medioambientales y Tecnológica, University of Oslo, Instituto Superior Técnico, University of York, Johann Wolfgang Goethe-Universität Frankfurt am Main, York University

Journal

Physical Review C

Volume

89

No. of pages

14

ISSN

0556-2813

DOI

https://doi.org/10.1103/PhysRevC.89.044609

Publication date

04-2014

Peer reviewed

Yes

Austrian Fields of Science 2012

103014 Nuclear physics

Keywords

ASJC Scopus subject areas

Nuclear and High Energy Physics

Portal url

https://ucrisportal.univie.ac.at/en/publications/99ca7707-96b9-4e4f-b314-58215745cfb9