Au-197(n,gamma) cross section in the resonance region

Autor(en)

Cristian Massimi, César Domingo-Pardo, Gianni Vannini, Laurent Audouin, Carlos Guerrero, Ugo Abbondanno, G Aerts, H Alvarez, Francisco Alvarez-Velarde, Samuel Andriamonje, J Andrzejewski, P Assimakopoulos, Gerald Badurek, P Baumann, Frantisek Becvar, Fabio Belloni, Eric Berthoumieux, Francisco Calvino, M Calviani, Daniel Cano Ott, R Capote, C. Carrapico, Paolo Cennini, Vitaly Y. Chepell, E Chiaveri, N Colonna, Guillem Cortes, Aaron Couture, J Cox, Marcus Dahlfors, S David, Iris Dillmann, W Dridi, I Duran, C Eleftheriadis, L Ferrant, Arnaud Ferrari, Rebelo Ferreira Marques, K Fujii, Walter I. Furman, Stratos Galanopoulos, Isabel Maria Ferro Goncalves, E Gonzalez - Romero, F Gramegna, Frank Gunsing, B Haas, Robert C Haight, Michael Heil, Adonai Herrera-Martinez, M Igashira, E Jericha, Franz Käppeler, Yacine Kadi, Dimitrios Karadimos, D Karamanis, M Kerveno, Paul Edward Koehler, E Kossionides, M Kritcka, Christos Lampoudis, Claudia Lederer, Helmut Leeb, Alexandre Lindote, I Lopes, M Lozano, S Lukic, J Marganiec, S Marrone, Trinitario Martinez, P F Mastinu, Emilio Mendoza, Alberto Mengoni, P M Milazzo, C Moreau, Marita Mosconi, Francisco Neves, Heinz Oberhummer, S O'Brien, J Pancin, C Papadopoulos, Carlos Paradela, Andreas Pavlik, Panagiotis Pavlopoulos, G Perdikakis, L Perrot, M T Pigni, Ralf Plag, A J M Plompen, A Plukis, Agusti Poch, Javier Praena, Carmen Pretel Sanchez, Jose Manuel Quesada Molina, Thomas Rauscher, Rene Reifarth, M Rosetti, Carlo Rubbia, Gérard Rudolf, P Rullhusen, Lucia Sarchiapone, Raúl Sarmento, Ilias Savvidis, C Stephan, Giuseppe Tagliente, Jose Luis Tain, Laurent Tassan-Got, Luís M N Tavora, R Terlizzi, Pedro Vaz, A Ventura, D Villamarin - Fernandez, Vassilis Vlachoudis, R Vlastou, Friedrich Voss, S Walter, Michael Wiescher, Klaus Wisshak

Abstrakt

The (n,gamma) cross section of Au-197 has been measured at n_TOF in the resolved resonance region, up to 5 keV, with the aim of improving the accuracy in an energy range where it is not yet considered standard. The measurements were performed with two different experimental setup and detection techniques, the total energy method based on C6D6 detectors, and the total absorption calorimetry based on a 4 pi BaF2 array. By comparing the data collected with the two techniques, two accurate sets of neutron-capture yields have been obtained, which could be the basis for a new evaluation leading to an extended cross-section standard. Overall good agreement is found between the n_TOF results and evaluated cross sections, with some significant exceptions for small resonances. A few resonances not included in the existing databases have also been observed.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

Istituto Nazionale di Fisica Nucleare (INFN), Roma, GSI Helmholtzzentrum für Schwerionenforschung, Centre National De La Recherche Scientifique (CNRS), Centro de Investigaciones Energeticas Medioambientales y Tecnológica, French Alternative Energies and Atomic Energy Commission (CEA), Universidade de Santiago de Compostela (USC), University of Lodz, University of Ioannina, Technische Universität Wien, Centre National de la Recherche Scientifique (CNRS), Strasbourg , Charles University Prague, Universidad Politécnica de Madrid, European Organization for Nuclear Research (CERN), International Atomic Energy Agency (IAEA), Universidade de Coimbra, Universitat Politècnica de Catalunya, University of Notre Dame, Centre de Specrométrie Nucleaire et de Spectrométrie de Masse (CSNSM), Karlsruher Institut für Technologie, Aristotle University of Thessaloniki, Joint Institute for Nuclear Research, National Technical University of Athens (NTUA), Instituto Tecnológico e Nuclear, Los Alamos National Laboratory, Tokyo Institute of Technology (TIT), Oak Ridge National Laboratory , National Centre for Scientific Research Demokritos (NCSR), European Commission Joint Research Centre, Universidad de Sevilla, Pôle universitaire Léonard-de-Vinci, Universität Basel, Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile, Universitat de València, Instituto Superior Técnico

Journal

Physical Review C

Band

81

Anzahl der Seiten

22

ISSN

0556-2813

DOI

https://doi.org/10.1103/PhysRevC.81.044616

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103005 Atomphysik, 203016 Messtechnik

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/au197ngamma-cross-section-in-the-resonance-region(76604337-d8c6-4cd5-ac72-7ba1c11ba7f6).html