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

Autor(en)

Claudia Lederer, N Colonna, César Domingo-Pardo, Frank Gunsing, Franz Käppeler, Cristian Massimi, Alberto Mengoni, Anton Wallner, Ugo Abbondanno, G Aerts, H Alvarez, Francisco Alvarez-Velarde, Samuel Andriamonje, J Andrzejewski, P Assimakopoulos, Ludmila Audouin, Gerald Badurek, Massimo Barbagallo, P Baumann, Frantisek Becvar, Fabio Belloni, Eric Berthoumieux, M Calviani, Francisco Calvino, Daniel Cano Ott, R Capote, C. Carrapico, A. Carrillo de Albornoz, Paolo Cennini, Vitaly Y. Chepell, E Chiaveri, Guillem Cortes, Aaron Couture, J Cox, Marcus Dahlfors, S David, I Dillmann, Rinaldo Dolfini, W Dridi, I Duran, C Eleftheriadis, M Embid-Segura, L Ferrant, Arnaud Ferrari, Rebelo Ferreira Marques, Walter I. Furman, Isabel F. Goncalves, E Gonzalez - Romero, A Goverdovski, F Gramegna, Erich Griesmayer, Carlos Guerrero, B Haas, Robert C Haight, Michael Heil, Adonai Herrera-Martinez, M Igashira, S Isaev, E Jericha, Yacine Kadi, Dimitrios Karadimos, D Karamanis, M Kerveno, V Ketlerov, Paul Edward Koehler, V Konovalov, E Kossionides, M Kritcka, Christos Lampoudis, Helmut Leeb, Alexandre Lindote, I Lopes, Roberto Losito, M Lozano, S Lukic, J Marganiec, L Marques, S Marrone, Trinitario Martinez, P F Mastinu, Emilio Mendoza, P M Milazzo, C Moreau, Marita Mosconi, Francisco Neves, Heinz Oberhummer, S O'Brien, M Oshima, J Pancin, C Papachristodoulou, C Papadopoulos, Carlos Paradela, Nikolaos Patronis, Andreas Pavlik, 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, José F. Salgado, Conceicao Santos, Lucia Sarchiapone, Raúl Sarmento, Ilias Savvidis, C Stephan, Giuseppe Tagliente, Jose Luis Tain, Diego Tarrio, Laurent Tassan-Got, Luís M N Tavora, R Terlizzi, Gianni Vannini, Pedro Vaz, A Ventura, D Villamarin - Fernandez, Vassilis Vlachoudis, R Vlastou, Friedrich Voss, S Walter, Helmut Wendler, Michael Wiescher, Klaus Wisshak

Abstrakt

The cross section of the reaction (197)Au(n,gamma) was measured with the time-of-flight technique at the n_TOF (neutron time-of-flight) facility in the unresolved resonance region between 5 and 400 keV using a pair of C(6)D(6) (where D denotes (2)H) liquid scintillators for the detection of prompt capture gamma rays. The results with a total uncertainty of 3.9%-6.7% for a resolution of 20 bins per energy decade show fair agreement with the Evaluated Nuclear Data File Version B-VII.0 (ENDF/B-VII.0), which contains the standard evaluation. The Maxwellian-averaged cross section (MACS) at 30 keV is in excellent agreement with the one according to the ENDF/B-VII.0 evaluation and 4.7% higher than the MACS measured independently by activation technique. Structures in the cross section, which had also been reported earlier, have been interpreted as being due to clusters of resonances.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

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

Journal

Physical Review C

Band

83

Anzahl der Seiten

11

ISSN

0556-2813

DOI

https://doi.org/10.1103/PhysRevC.83.034608

Publikationsdatum

2011

Peer-reviewed

Ja

ÖFOS 2012

103005 Atomphysik, 203016 Messtechnik

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/197aungamma-cross-section-in-the-unresolved-resonance-region(459c9105-f1be-4cf3-86ef-3290b0ac9c7a).html