Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions

A background roughly two orders of magnitude higher than tolerable was found in the n_TOF facility at CERN during the first measurements. This note describes a series of additional measurements performed in the n_TOF experimental area to study the origin and the characteristics of the background. Th...

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Detalles Bibliográficos
Autores: Abbondanno, U., Aerts, G., Andriamonje, S., Calviño Tavares, Francisco|||0000-0002-7198-4639, Cortés Rossell, Guillem Pere|||0000-0002-3648-5826, Poch Parés, Agustí, Pretel Sánchez, Carme|||0000-0001-6199-3366
Tipo de recurso: informe técnico
Fecha de publicación:2001
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/133767
Acceso en línea:https://hdl.handle.net/2117/133767
Access Level:acceso abierto
Palabra clave:Neutrons
Nuclear physics
n_TOF
CERN
facility
Time of flight
Física nuclear
Àrees temàtiques de la UPC::Energies::Energia nuclear
Àrees temàtiques de la UPC::Física
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network_acronym_str ES
network_name_str España
repository_id_str
spelling Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutionsAbbondanno, U.Aerts, G.Andriamonje, S.Calviño Tavares, Francisco|||0000-0002-7198-4639Cortés Rossell, Guillem Pere|||0000-0002-3648-5826Poch Parés, AgustíPretel Sánchez, Carme|||0000-0001-6199-3366NeutronsNuclear physicsn_TOFCERNNeutronsfacilityTime of flightNeutronsFísica nuclearÀrees temàtiques de la UPC::Energies::Energia nuclearÀrees temàtiques de la UPC::FísicaA background roughly two orders of magnitude higher than tolerable was found in the n_TOF facility at CERN during the first measurements. This note describes a series of additional measurements performed in the n_TOF experimental area to study the origin and the characteristics of the background. The program of these measurements was determined taking into account the results from the simulations carried out by the EET group. A first phase of measurements confirmed the results of the simulations, namely that the dominant source of background was due to neutrons generated by negative muon capture. Actions to reduce the background were taken according to the results from both measurements and simulations. An iron shielding wall 3.2 m thick was then placed in between the sweeping magnet and the second collimator, with the purpose of stopping most of the muons. In a second phase of measurements, results showed that the additional shielding reduced the main component of the background by about a factor of 30.20012001-12-1020192019-05-31reporthttp://purl.org/coar/resource_type/c_93fcAMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/reportapplication/pdfhttps://hdl.handle.net/2117/133767reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1337672026-05-27T15:37:01Z
dc.title.none.fl_str_mv Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions
title Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions
spellingShingle Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions
Abbondanno, U.
Neutrons
Nuclear physics
n_TOF
CERN
Neutrons
facility
Time of flight
Neutrons
Física nuclear
Àrees temàtiques de la UPC::Energies::Energia nuclear
Àrees temàtiques de la UPC::Física
title_short Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions
title_full Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions
title_fullStr Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions
title_full_unstemmed Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions
title_sort Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions
dc.creator.none.fl_str_mv Abbondanno, U.
Aerts, G.
Andriamonje, S.
Calviño Tavares, Francisco|||0000-0002-7198-4639
Cortés Rossell, Guillem Pere|||0000-0002-3648-5826
Poch Parés, Agustí
Pretel Sánchez, Carme|||0000-0001-6199-3366
author Abbondanno, U.
author_facet Abbondanno, U.
Aerts, G.
Andriamonje, S.
Calviño Tavares, Francisco|||0000-0002-7198-4639
Cortés Rossell, Guillem Pere|||0000-0002-3648-5826
Poch Parés, Agustí
Pretel Sánchez, Carme|||0000-0001-6199-3366
author_role author
author2 Aerts, G.
Andriamonje, S.
Calviño Tavares, Francisco|||0000-0002-7198-4639
Cortés Rossell, Guillem Pere|||0000-0002-3648-5826
Poch Parés, Agustí
Pretel Sánchez, Carme|||0000-0001-6199-3366
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Neutrons
Nuclear physics
n_TOF
CERN
Neutrons
facility
Time of flight
Neutrons
Física nuclear
Àrees temàtiques de la UPC::Energies::Energia nuclear
Àrees temàtiques de la UPC::Física
topic Neutrons
Nuclear physics
n_TOF
CERN
Neutrons
facility
Time of flight
Neutrons
Física nuclear
Àrees temàtiques de la UPC::Energies::Energia nuclear
Àrees temàtiques de la UPC::Física
description A background roughly two orders of magnitude higher than tolerable was found in the n_TOF facility at CERN during the first measurements. This note describes a series of additional measurements performed in the n_TOF experimental area to study the origin and the characteristics of the background. The program of these measurements was determined taking into account the results from the simulations carried out by the EET group. A first phase of measurements confirmed the results of the simulations, namely that the dominant source of background was due to neutrons generated by negative muon capture. Actions to reduce the background were taken according to the results from both measurements and simulations. An iron shielding wall 3.2 m thick was then placed in between the sweeping magnet and the second collimator, with the purpose of stopping most of the muons. In a second phase of measurements, results showed that the additional shielding reduced the main component of the background by about a factor of 30.
publishDate 2001
dc.date.none.fl_str_mv 2001
2001-12-10
2019
2019-05-31
dc.type.none.fl_str_mv report
http://purl.org/coar/resource_type/c_93fc
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/report
format report
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/133767
url https://hdl.handle.net/2117/133767
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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