The (n, α) reaction in the s-process branching point ⁵⁹Ni

Autor(en)

C. Weiss, C. Guerrero, E. Griesmayer, J. Andrzejewski, G. Badurek, E. Chiaveri, R. Dressler, S. Ganesan, E. Jericha, F. Kaeppeler, P. Koehler, C. Lederer, H. Leeb, J. Marganiec, A. Pavlik, J. Perkowski, T. Rauscher, R. Reifarth, D. Schumann, G. Tagliente, V. Vlachoudis, S. Altstadt, 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, M. Chin, N. Colonna, G. Cortes, M. A. Cortes-Giraldo, M. Diakaki, C. Domingo-Pardo, I. Duran, N. Dzysiuk, C. Eleftheriadis, A. Ferrari, K. Fraval, A. R. Garcia, Anton Wallner,

Abstrakt

The (n, α) reaction in the radioactive ⁵⁹Ni is of relevance in nuclear astrophysics as ⁵⁹Ni

can be considered as the first branching point in the astrophysical

s-process. Its relevance in nuclear technology is especially related to

material embrittlement in stainless steel. However, there is a

discrepancy between available experimental data and the evaluated

nuclear data files for this reaction. At the n_TOF facility at CERN, a

dedicated system based on sCVD diamond diodes was set up to measure the ⁵⁹Ni(n, α)⁵⁶Fe

cross section. The results of this measurement, with special emphasis

on the dominant resonance at 203 eV, are presented here.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

Technische Universität Wien, University of Lodz, Karlsruher Institut für Technologie, Universität Basel, University of Oslo, European Organization for Nuclear Research (CERN), IRFU CEA-Saclay laboratory , Paul Scherrer Institute, Bhabha Atomic Research Center, Johann Wolfgang Goethe-Universität Frankfurt am Main, Istituto Nazionale di Fisica Nucleare (INFN), Roma, Centre National De La Recherche Scientifique (CNRS), Centro de Investigaciones Energeticas Medioambientales y Tecnológica, Charles University Prague, 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), Aristotle University of Thessaloniki

Journal

Nuclear Data Sheets

Band

120

Seiten

208-210

Anzahl der Seiten

3

ISSN

0090-3752

DOI

https://doi.org/10.1016/j.nds.2014.07.048

Publikationsdatum

06-2014

Peer-reviewed

Ja

ÖFOS 2012

103014 Kernphysik

Schlagwörter

ASJC Scopus Sachgebiete

Nuclear and High Energy Physics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/111fcd18-aee7-4a20-8dec-a6913d74ee7d