Issue |
EPJ Web Conf.
Volume 146, 2017
ND 2016: International Conference on Nuclear Data for Science and Technology
|
|
---|---|---|
Article Number | 11045 | |
Number of page(s) | 4 | |
Section | Nuclear Reaction Measurements | |
DOI | https://doi.org/10.1051/epjconf/201714611045 | |
Published online | 13 September 2017 |
https://doi.org/10.1051/epjconf/201714611045
New measurement of the 242Pu(n,γ) cross section at n_TOF-EAR1 for MOX fuels: Preliminary results in the RRR
1 Universidad de Sevilla, Spain
2 Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT), Spain
3 Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
4 Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany
5 European Organization for Nuclear Research (CERN), Switzerland
6 University of Lodz, Poland
7 Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
8 Technische Universität Wien, Austria
9 CEA Saclay, Irfu, Gif-sur-Yvette, France
10 Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
11 Charles University, Prague, Czech Republic
12 University of Manchester, UK
13 University of Zagreb, Croatia
14 University of York, UK
15 University of Santiago de Compostela, Spain
16 Universitat Politècnica de Catalunya, Spain
17 INFN Laboratori Nazionali del Sud, Catania, Italy
18 Dipartimento di Fisica, Università degli Studi di Bari, Italy
19 Instituto de Física Corpuscular, Universidad de Valencia, Spain
20 Paul Scherrer Institut (PSI), Villingen, Switzerland
21 Instituto Superior Técnico, Lisbon, Portugal
22 Goethe University Frankfurt, Germany
23 Horia Hulubei National Institute of Physics and Nuclear Engineering, Romania
24 Japan Atomic Energy Agency (JAEA), Tokai-mura, Japan
25 European Commission, Joint Research Centre, Geel, Retieseweg 111, 2440 Geel, Belgium
26 Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany
27 National Technical University of Athens, Greece
28 School of Physics and Astronomy, University of Edinburgh, UK
29 Agenzia nazionale per le nuove tecnologie (ENEA), Bologna, Italy
30 Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
31 Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
32 Dipartimento di Fisica e Astronomia, Università di Bologna, Italy
33 Istituto Nazionale di Fisica Nucleare, Sezione di Legnaro, Italy
34 Consiglio Nazionale delle Ricerche, Bari, Italy
35 Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
36 Dipartimento di Fisica e Astronomia, Università di Catania, Italy
37 University of Ioannina, Greece
38 University of Vienna, Faculty of Physics, Vienna, Austria
39 University of Granada, Spain
40 Department of Physics, University of Basel, Switzerland
41 Centre for Astrophysics Research, University of Hertfordshire, UK
42 Bhabha Atomic Research Centre (BARC), India
43 Australian National University, Canberra, Australia
a e-mail: jlerendegui@us.es
Published online: 13 September 2017
The spent fuel of current nuclear reactors contains fissile plutonium isotopes that can be combined with 238U to make mixed oxide (MOX) fuel. In this way the Pu from spent fuel is used in a new reactor cycle, contributing to the long-term sustainability of nuclear energy. The use of MOX fuels in thermal and fast reactors requires accurate capture and fission cross sections. For the particular case of 242Pu, the previous neutron capture cross section measurements were made in the 70's, providing an uncertainty of about 35% in the keV region. In this context, the Nuclear Energy Agency recommends in its “High Priority Request List” and its report WPEC-26 that the capture cross section of 242Pu should be measured with an accuracy of at least 7–12% in the neutron energy range between 500 eV and 500 keV. This work presents a brief description of the measurement performed at n_TOF-EAR1, the data reduction process and the first ToF capture measurement on this isotope in the last 40 years, providing preliminary individual resonance parameters beyond the current energy limits in the evaluations, as well as a preliminary set of average resonance parameters.
© The Authors, published by EDP Sciences, 2017
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