Record link: 
http://hdl.handle.net/20.500.12708/156992
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Title: 
A Micromegas Detector for Neutron Beam Imaging at the n_TOF Facility at CERN
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Citation: 
Belloni, F., Andriamonje, S., Berthoumieux, E., Calviani, M., Chiaveri, E., Colonna, N., Giomataris, Y., Guerrero, C., Gunsing, F., Iguaz, F. J., Kebbiri, M., Pancin, J., Papaevangelou, T., Tsinganis, A., Vlachoudis, V., Altstadt, S., Andrzejewski, J., Audouin, L., Barbagall, M., … Žugec, P. (2014). A Micromegas Detector for Neutron Beam Imaging at the n_TOF Facility at CERN. Nuclear Data Sheets, 119, 365–367. https://doi.org/10.1016/j.nds.2014.08.100
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Publisher DOI: 
10.1016/j.nds.2014.08.100
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Publication Type: 
Artikel - Original Research Article
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Article - Original Research Article
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Language: 
English
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Authors: 
Belloni, Francesca 
Andriamonje, S. 
Berthoumieux, E. 
Calviani, M. 
Chiaveri, Enrico 
Colonna, N. 
Giomataris, Y. 
Guerrero, C. 
Gunsing, F. 
Iguaz, F. J. 
Kebbiri, M. 
Pancin, J. 
Papaevangelou, T. 
Tsinganis, Andrea 
Vlachoudis, V. 
Altstadt, S. 
Andrzejewski, J. 
Audouin, L. 
Barbagall, M. 
Griesmayer, Erich 
Jericha, Erwin 
Leeb, Helmut 
Weiß, Christina 
Žugec, P. 
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Organisational Unit: 
E141-04 - Forschungsbereich Neutron- and Quantum Physics 
E141 - Atominstitut 
E141-03 - Forschungsbereich Nuclear and Particle Physics 
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Journal: 
Nuclear Data Sheets 
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ISSN: 
0090-3752
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Date (published): 
May-2014
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Number of Pages: 
3
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Publisher: 
ACADEMIC PRESS INC ELSEVIER SCIENCE
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Peer reviewed: 
Yes
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Keywords: 
Nuclear and High Energy Physics
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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 ¹⁰B 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.
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Research Areas: 
Special and Engineering Materials: 35%
Materials Characterization: 30%
Modelling and Simulation: 35%
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Science Branch: 
Physik, Astronomie
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