Issue |
EPJ Web Conf.
Volume 239, 2020
ND 2019: International Conference on Nuclear Data for Science and Technology
|
|
---|---|---|
Article Number | 01043 | |
Number of page(s) | 5 | |
Section | Nuclear Reaction Measurements | |
DOI | https://doi.org/10.1051/epjconf/202023901043 | |
Published online | 30 September 2020 |
https://doi.org/10.1051/epjconf/202023901043
Preliminary results on the 233U α-ratio measurement at n_TOF
1 European Organization for Nuclear Research (CERN), Switzerland
2 Technische Universität Wien, Austria
3 CEA Irfu, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
4 CENBG, CNRS/IN2P3-Université de Bordeaux, Gradignan, France
5 CEA, DAM, DIF, F-91297 Arpajon, France
6 European Commission, Joint Research Centre, Geel, Retieseweg 111, B-2440 Geel, Belgium
7 Charles University, Prague, Czech Republic
8 CEA, DEN, Cadarache, France
9 University of Lodz, Poland
10 Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
11 Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Spain
12 Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
13 University of Manchester, United Kingdom
14 Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
15 University of York, United Kingdom
16 University of Santiago de Compostela, Spain
17 Universitat Politècnica de Catalunya, Spain
18 Universidad de Sevilla, Spain
19 INFN Laboratori Nazionali del Sud, Catania, Italy
20 Dipartimento di Fisica, Università degli Studi di Bari, Italy
21 Instituto de Física Corpuscular, CSIC - Universidad de Valencia, Spain
22 Paul Scherrer Institut (PSI), Villingen, Switzerland
23 Instituto Superior Técnico, Lisbon, Portugal
24 Joint Institute for Nuclear Research (JINR), Dubna, Russia
25 Goethe University Frankfurt, Germany
26 Horia Hulubei National Institute of Physics and Nuclear Engineering, Romania
27 Japan Atomic Energy Agency (JAEA), Tokai-mura, Japan
28 Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany
29 National Technical University of Athens, Greece
30 School of Physics and Astronomy, University of Edinburgh, United Kingdom
31 Agenzia nazionale per le nuove tecnologie (ENEA), Bologna, Italy
32 Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
33 Dipartimento di Fisica e Astronomia, Università di Bologna, Italy
34 Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
35 Istituto Nazionale di Fisica Nucleare, Sezione di Legnaro, Italy
36 Consiglio Nazionale delle Ricerche, Bari, Italy
37 Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
38 Dipartimento di Fisica e Astronomia, Università di Catania, Italy
39 University of Ioannina, Greece
40 University of Vienna, Faculty of Physics, Vienna, Austria
41 University of Granada, Spain
42 Department of Physics, University of Basel, Switzerland
43 Centre for Astrophysics Research, University of Hertfordshire, United Kingdom
44 Bhabha Atomic Research Centre (BARC), India
45 Australian National University, Canberra, Australia
* e-mail: michael.bacak@cern.ch
Published online: 30 September 2020
233U is the fissile nuclei in the Th-U fuel cycle with a particularily small neutron capture cross setion which is on average about one order of magnitude lower than its fission cross section. Hence, the measurement of the 233U(n, γ) cross section relies on a method to accurately distinguish between capture and fission γ-rays. A measurement of the 233U α-ratio has been performed at the n_TOF facility at CERN using a so-called fission tagging setup, coupling n_TOF 's Total Absorption Calorimeter with a novel fission chamber to tag the fission γ-rays. The experimental setup is described and essential parts of the analysis are discussed. Finally, a preliminary 233U α-ratio is presented.
© The Authors, published by EDP Sciences, 2020
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