EPJ Web of Conferences
Volume 122, 2016CNR*15 - 5th International Workshop on Compound-Nuclear Reactions and Related Topics
|Number of page(s)||12|
|Section||Experiments With Neutrons|
|Published online||21 June 2016|
The CERN n_TOF facility: a unique tool for nuclear data measurement
1 Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
2 European Organization for Nuclear Research (CERN), Switzerland
3 University of Lodz, Poland
4 Institut de Physique Nuclèaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex France
5 Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT), Spain
6 Technische Universität Wien, Austria
7 Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
8 Instituto Superior Técnico, Lisbon, Portugal
9 Charles University, Prague, Czech Republic
10 Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
11 CEA Saclay, Irfu, Gif-sur-Yvette, France
12 University of Manchester, United Kingdom
13 University of Zagreb, Croatia
14 University of Santiago de Compostela, Spain
15 Universitat Politècnica de Catalunya, Spain
16 Agenzia nazionale per le nuove tecnologie (ENEA), Bologna, Italy
17 Universidad de Sevilla, Spain
18 Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Italy
19 Instituto de Física Corpuscular, Universidad de Valencia, Spain
20 Paul Scherrer Institut (PSI), Villingen, Italy
21 Joint Institute for Nuclear Research (JINR), Dubna, Russia
22 Bhabha Atomic Research Centre (BARC), India
23 Horia Hulubei National Institute of Physics and Nuclear Engineering
24 Institute of Physics and Power Engineering (IPPE), Obninsk, Russia
25 Japan Atomic Energy Agency (JAEA), Tokai-mura, Japan
26 European Commission JRC, IRMM, Geel, Belgium
27 University of York, United Kingdom
28 Karlsruhe Institute of Technology, Germany
29 Tokyo Institute of Technology, Japan
30 National Technical University of Athens, Greece
31 University of Edinburgh, United Kingdom
32 University of Bologna, Italy
33 Istituto Nazionale di Fisica Nucleare, Sezione di Legnaro, Italy
34 Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
35 Physikalisch Technische Bundesanstalt, Braunschweig, Germany
36 University of Ioannina, Greece
37 Universität Wien, Austria
38 University of Hertfordshire, United Kingdom
39 Department of Physics and Astronomy, University of Basel, Switzerland
40 Australian National University, Canberra, Australia
a e-mail: email@example.com
Published online: 21 June 2016
The study of the resonant structures in neutron-nucleus cross-sections, and therefore of the compound-nucleus reaction mechanism, requires spectroscopic measurements to determine with high accuracy the energy of the neutron interacting with the material under study.
To this purpose, the neutron time-of-flight facility n_TOF has been operating since 2001 at CERN. Its characteristics, such as the high intensity instantaneous neutron flux, the wide energy range from thermal to few GeV, and the very good energy resolution, are perfectly suited to perform high-quality measurements of neutron-induced reaction cross sections. The precise and accurate knowledge of these cross sections plays a fundamental role in nuclear technologies, nuclear astrophysics and nuclear physics.
Two different measuring stations are available at the n_TOF facility, called EAR1 and EAR2, with different characteristics of intensity of the neutron flux and energy resolution. These experimental areas, combined with advanced detection systems lead to a great flexibility in performing challenging measurement of high precision and accuracy, and allow the investigation isotopes with very low cross sections, or available only in small quantities, or with very high specific activity.
The characteristics and performances of the two experimental areas of the n_TOF facility will be presented, together with the most important measurements performed to date and their physics case. In addition, the significant upcoming measurements will be introduced.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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