A Micromegas Detector for Neutron Beam Imaging at the n_TOF Facility at CERN

Author(s)

F. Belloni, S. Andriamonje, E. Berthoumieux, M. Calviani, E. Chiaveri, N. Colonna, Y. Giomataris, C. Guerrero, F. Gunsing, F. J. Iguaz, M. Kebbiri, J. Pancin, T. Papaevangelou, A. Tsinganis, V. Vlachoudis, S. Altstadt, J. Andrzejewski, L. Audouin, M. Barbagallo, V. Becares, F. Becvar, J. Billowes, V. Boccone, D. Bosnar, M. Brugger, F. Calvino, D. Cano-Ott, C. Carrapico, F. Cerutti, E. Chiaveri, M. Chin, G. Cortes, M. A. Corte-Giraldo, M. Diakaki, C. Domingo-Pardo, I. Duran, N. Dzysiuk, C. Eleftheriadis, A. Ferrari, K. Fraval, S. Ganesan, A. R. Garcia, G. Giubrone, M. B. Gomez-Hornillos, I. F. Goncalves, E. Gonzalez-Romero, E. Griesmayer, P. Gurusamy, D. G. Jenkins, E. Jericha, Y. Kadi, F. Kaeppeler, D. Karadimos, P. Koehler, M. Kokkoris, M. Krticka, J. Kroll, C. Langer, C. Lederer, H. Leeb, L. S. Leong, R. Losito, A. Manousos, J. Marganiec, T. Maritnez, C. Massimi, P. F. Mastinu, M. Mastromarco, M. Meaze, E. Mendoza, A. Mengoni, P. M. Milazzo, F. Mingrone, M. Mirea, W. Mondalaers, C. Paradela, A. Pavlik, J. Perkowski, A. J. M. Plompen, J. Praena, J. M. Quesada, T. Rauscher, R. Reifarth, A. Riego, F. Roman, C. Rubbia, R. Sarmento, P. Schillebeeckx, S. Schmidt, 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, C. Weiss, T. J. Wright, P. Zugec

Abstract

Micromegas (Micro-MEsh Gaseous Structure) detectors are gas detectors consisting of a stack of one ionization and one proportional chamber. A micromesh separates the two communicating regions, where two different electric fields establish respectively a charge drift and a charge multiplication regime. The n_TOF facility at CERN provides a white neutron beam (from thermal up to GeV neutrons) for neutron induced cross section measurements. These measurements need a perfect knowlodge of the incident neutron beam, in particular regarding its spatial profile. A position sensitive micromegas detector equipped with a B-10 based neutron/charged particle converter has been extensively used at the n_TOF facility for characterizing the neutron beam profile and extracting the beam interception factor for samples of different size. The boron converter allowed to scan the energy region of interest for neutron induced capture reactions as a function of the neutron energy, determined by the time of flight. Experimental results will be presented and compared to simulations, performed by means of the FLUKA code.

Organisation(s)

Isotope Physics, Basic Experimental Physics Training and University Didactics

External organisation(s)

CEA Cadarache, Aix-Marseille Université, Université Paris VI - Pierre-et-Marie-Curie, Centre National De La Recherche Scientifique (CNRS), European Organization for Nuclear Research (CERN), National Institute for Nuclear Physics, National Technical University of Athens (NTUA), Johann Wolfgang Goethe-Universität Frankfurt am Main, Medical University of Lodz, Centre National de la Recherche Scientifique (CNRS), Strasbourg , Centro de Investigaciones Energeticas Medioambientales y Tecnológica, Charles University Prague, Central Manchester University Hospitals, University Hospital Centre Zagreb, Universitat Politècnica de Catalunya, Universidade do Porto, Instituto Superior Técnico, Universidad de Sevilla, Spanish National Research Council (CSIC), Valencian International University, Universidade de Santiago de Compostela (USC), Aristotle University of Thessaloniki, Bhabha Atomic Research Center, Technische Universität Wien, State University of New York Polytechnic Institute, Helmholtz-Zentrum Berlin für Materialien und Energie, Karlsruher Institut für Technologie, Oak Ridge National Laboratory , 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, Gran Sasso Science Institute (GSSI)

Journal

Nuclear Data Sheets

Volume

119

Pages

365-367

No. of pages

3

ISSN

0090-3752

DOI

https://doi.org/10.1016/j.nds.2014.08.100

Publication date

05-2014

Peer reviewed

Yes

Austrian Fields of Science 2012

103014 Nuclear physics

ASJC Scopus subject areas

Nuclear and High Energy Physics

Portal url

https://ucrisportal.univie.ac.at/en/publications/d4b8b31c-6cd3-40d5-9863-08c7b53d3a04