Open Access
Issue
ND 2007
2007
Article Number 345
Number of page(s) 4
Section Astrophysics applications
DOI https://doi.org/10.1051/ndata:07732
Published online 17 June 2008
International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07732

Measurement of the 90,91,92,93,94,96Zr(n,γ) and 139La(n,γ) cross sections at n_TOF

G. Tagliente1, U. Abbondanno2, G. Aerts3, H. Álvarez4, F. Álvarez-Velarde5, S. Andriamonje3, J. Andrzejewski6, P. Assimakopoulos7, L. Audouin8, G. Badurek9, P. Baumann10, F. Becvár11, E. Berthoumieux3, F. Calviño12, M. Calviani13, 14, D. Cano-Ott5, R. Capote15, 16, C. Carrapiço17, 3, P. Cennini18, V. Chepel19, E. Chiaveri18, N. Colonna1, G. Cortes20, A. Couture21, J. Cox21, M. Dahlfors18, S. David8, I. Dillmann22, C. Domingo-Pardo23, 22, W. Dridi3, I. Duran4, C. Eleftheriadis24, M. Embid-Segura5, L. Ferrant8, A. Ferrari18, R. Ferreira-Marques19, K. Fujii2, W. Furman25, I. Goncalves19, E. González-Romero5, F. Gramegna13, C. Guerrero5, F. Gunsing3, B. Haas26, R. Haight27, M. Heil22, A. Herrera-Martinez18, M. Igashira28, E. Jericha9, F. Käppeler22, Y. Kadi18, D. Karadimos7, D. Karamanis7, M. Kerveno10, P. Koehler29, E. Kossionides30, M. Krticka11, C. Lampoudis24, 3, H. Leeb9, A. Lindote19, I. Lopes19, M. Lozano16, S. Lukic10, J. Marganiec6, S. Marrone1, T. Martínez5, C. Massimi31, P. Mastinu13, A. Mengoni15, 18, P.M. Milazzo2, C. Moreau2, M. Mosconi22, F. Neves19, H. Oberhummer9, S. O'Brien21, J. Pancin3, C. Papachristodoulou7, C. Papadopoulos32, C. Paradela4, N. Patronis7, A. Pavlik33, P. Pavlopoulos34, L. Perrot3, M.T. Pigni9, R. Plag22, A. Plompen35, A. Plukis3, A. Poch20, J. Praena13, C. Pretel20, J. Quesada16, T. Rauscher36, R. Reifarth27, C. Rubbia37, G. Rudolf10, P. Rullhusen35, J. Salgado17, C. Santos17, L. Sarchiapone18, I. Savvidis24, C. Stephan8, J.L. Tain23, L. Tassan-Got8, L. Tavora17, R. Terlizzi1, G. Vannini31, P. Vaz17, A. Ventura38, D. Villamarin5, M.C. Vincente5, V. Vlachoudis18, R. Vlastou32, F. Voss22, S. Walter22, M. Wiescher21 and K. Wisshak22

1  Istituto Nazionale di Fisica Nucleare, Bari, Italy
2  Istituto Nazionale di Fisica Nucleare, Trieste, Italy
3  CEA/Saclay-DSM/DAPNIA, Gif-sur-Yvette, France
4  Universidade de Santiago de Compostela, Spain
5  Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, Madrid, Spain
6  University of Lodz, Lodz, Poland
7  University of Ioannina, Greece
8  Centre National de la Recherche Scientifique/IN2P3-IPN, Orsay, France
9  Atominstitut der Österreichischen Universitäten, Technische Universität Wien, Austria
10  Centre National de la Recherche Scientifique/IN2P3-IReS, Strasbourg, France
11  Charles University, Prague, Czech Republic
12  Universidad Politecnica de Madrid, Spain
13  Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Italy
14  Dipartimento di Fisica, Università di Padova, Italy
15  International Atomic Energy Agency (IAEA), Nuclear Data Section, Vienna, Austria
16  Universidad de Sevilla, Spain
17  Instituto Tecnológico e Nuclear (ITN), Lisbon, Portugal
18  CERN, Geneva, Switzerland
19  LIP-Coimbra & Departamento de Fisica da Universidade de Coimbra, Portugal
20  Universitat Politecnica de Catalunya, Barcelona, Spain
21  University of Notre Dame, Notre Dame, USA
22  Forschungszentrum Karlsruhe GmbH (FZK), Institut für Kernphysik, Germany
23  Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Spain
24  Aristotle University of Thessaloniki, Greece
25  Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, Russia
26  Centre National de la Recherche Scientifique/IN2P3-CENBG, Bordeaux, France
27  Los Alamos National Laboratory, New Mexico, USA
28  Tokyo Institute of Technology, Tokyo, Japan
29  Oak Ridge National Laboratory, Physics Division, Oak Ridge, USA
30  NCSR, Athens, Greece
31  Dipartimento di Fisica, Università di Bologna, and Sezione INFN di Bologna, Italy
32  National Technical University of Athens, Greece
33  Institut für Isotopenforschung und Kernphysik, Universität Wien, Austria
34  Pôle Universitaire Léonard de Vinci, Paris-La Défense, France
35  CEC-JRC-IRMM, Geel, Belgium
36  Department of Physics - University of Basel, Switzerland
37  Università degli Studi Pavia, Pavia, Italy
38  ENEA, Bologna, Italy

giuseppe.tagliente@ba.infn.it

Published online: 21 May 2008

Abstract
Neutron capture cross sections of Zr and La isotopes have important implications in the field of nuclear astrophysics as well as in the nuclear technology. In particular the Zr isotopes play a key role for the determination of the neutron density in the He burning zone of the Red Giant star, while the 139La is important to monitor the s-process abundances from Ba up to Pb. Zr is also largely used as structural materials of traditional and advanced nuclear reactors. The nuclear resonance parameters and the cross section of 90,91,92,93,94,96Zr and 139La have been measured at the n_TOF facility at CERN. Based on these data the capture resonance strength and the Maxwellian-averaged cross section were calculated.



© CEA 2008

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