Performance of the neutron time-of-flight facility n_TOF at CERN

Author(s)

C. Guerrero, A. Tsinganis, E. Berthoumieux, M. Barbagallo, F. Belloni, F. Gunsing, C. Weiss, E. Chiaveri, M. Calviani, V. Vlachoudis, S. Altstadt, S. Andriamonje, J. Andrzejewski, L. Audouin, V. Becares, F. Becvar, J. Billowes, V. Boccone, D. Bosnar, M. Brugger, 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, R. Dressler, N. Dzysiuk, C. Eleftheriadis, A. Ferrari, K. Fraval, S. Ganesan, A. R. Garcia, G. Giubrone, K. Goebel, M. B. Gomez-Hornillos, I. F. Goncalves, E. Gonzalez-Romero, E. Griesmayer, P. Gurusamy, A. Hernandez-Prieto, P. Gurusamy, D. G. Jenkins, E. Jericha, Y. Kadi, F. Kaeppeler, D. Karadimos, N. Kivel, P. Koehler, M. Kokkoris, M. Krticka, J. Kroll, C. Lampoudis, C. Langer, E. Leal-Cidoncha, C. Lederer, H. Leeb, L. S. Leong, R. Losito, A. Manousos, J. Marganiec, T. Martinez, C. Massimi, P. F. Mastinu, M. Mastromarco, M. Meaze, E. Mendoza, A. Mengoni, P. M. Milazzo, F. Mingrone, M. Mirea, W. Mondalaers, T. Papaevangelou, C. Paradela, A. Pavlik, J. Perkowski, A. Plompen, J. Praena, M. Quesada, T. Rauscher, R. Reifarth, A. Riego, F. Roman, C. Rubbia, M. Sabate-Gilarte, R. Sarmento, A. Saxena, P. Schillebeeckx, S. Schmidt, D. Schumann, P. Steinegger, G. Tagliente, J. L. Tain, D. Tarrio, L. Tassan-Got, S. Valenta, G. Vannini, V. Variale, P. Vaz, A. Ventura, R. Versaci, M. J. Vermeulen, R. Vlastou, A. Wallner, T. Ware, M. Weigand, T. Wright, P. Zugec

Abstract

The neutron time-of-flight facility n_TOF features a white neutron source produced by spallation through 20GeV/c protons impinging on a lead target. The facility, aiming primarily at the measurement of neutron-induced reaction cross sections, was operating at CERN between 2001 and 2004, and then underwent a major upgrade in 2008. This paper presents in detail all the characteristics of the new neutron beam in the currently available configurations, which correspond to two different collimation systems and two choices of neutron moderator. The characteristics discussed include the intensity and energy dependence of the neutron flux, the spatial profile of the beam, the in-beam background components and the energy resolution/broadening. The discussion of these features is based on dedicated measurements and Monte Carlo simulations, and includes estimations of the systematic uncertainties of the mentioned quantities.

Organisation(s)

Isotope Physics

External organisation(s)

European Organization for Nuclear Research (CERN), National Technical University of Athens (NTUA), IRFU CEA-Saclay laboratory , Istituto Nazionale di Fisica Nucleare (INFN), Roma, Johann Wolfgang Goethe-Universität Frankfurt am Main, University of Lodz, Institut de Physique Nucléaire d'Orsay (IPN), 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, Instituto de Física Corpuscular (IFIC), Universidade de Santiago de Compostela (USC), Universität Zürich (UZH), Aristotle University of Thessaloniki, Bhabha Atomic Research Center, Technische Universität Wien, University of York, Karlsruher Institut für Technologie, University of Bologna, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements, Universität Basel, Oak Ridge National Laboratory

Journal

European Physical Journal A

Volume

49

No. of pages

15

ISSN

1434-6001

DOI

https://doi.org/10.1140/epja/i2013-13027-6

Publication date

02-2013

Peer reviewed

Yes

Austrian Fields of Science 2012

103005 Atomic physics

Portal url

https://ucrisportal.univie.ac.at/en/publications/37d3b27c-2292-4eb6-8e64-0464aa5cb079