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Refining and testing 12,000 km of scintillating plastic fibre for the LHCb SciFi tracker

The LHCb Collaboration is constructing a large scintillating fibre tracker for a major upgrade of the experiment during the LHC long shutdown LS2 scheduled for 2019–2020. The detector is based on blue emitting Kuraray SCSF-78MJ fibres of 0.25 mm diameter, read out by linear 128-channel Hamamatsu SiP...

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Autores principales: Cavalcante, A B R, Dey, B, Gavardi, L, Gruber, L, Joram, C, Kristic, R, Shinji, O, Zhukov, V
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1748-0221/13/10/P10025
http://cds.cern.ch/record/2647071
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author Cavalcante, A B R
Dey, B
Gavardi, L
Gruber, L
Joram, C
Kristic, R
Shinji, O
Zhukov, V
author_facet Cavalcante, A B R
Dey, B
Gavardi, L
Gruber, L
Joram, C
Kristic, R
Shinji, O
Zhukov, V
author_sort Cavalcante, A B R
collection CERN
description The LHCb Collaboration is constructing a large scintillating fibre tracker for a major upgrade of the experiment during the LHC long shutdown LS2 scheduled for 2019–2020. The detector is based on blue emitting Kuraray SCSF-78MJ fibres of 0.25 mm diameter, read out by linear 128-channel Hamamatsu SiPM arrays. Over a period of about 2 years the full supply of 12,000 km of fibres underwent a systematic and rigorous quality assurance program, including geometrical refinement to deal with rare punctual imperfections. The measurements comprised attenuation length, ionisation light yield, diameter, cladding integrity and radiation tolerance to X-rays. The supply was found to be timely and of very high quality and stability, which led to negligible rejection rates. A small but systematic degradation of the attenuation length by about 1.4% per year is interpreted as natural aging due to oxidation of the polystyrene fibre core and is subject of further investigations.
id oai-inspirehep.net-1699712
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling oai-inspirehep.net-16997122019-10-15T15:18:21Zdoi:10.1088/1748-0221/13/10/P10025http://cds.cern.ch/record/2647071engCavalcante, A B RDey, BGavardi, LGruber, LJoram, CKristic, RShinji, OZhukov, VRefining and testing 12,000 km of scintillating plastic fibre for the LHCb SciFi trackerDetectors and Experimental TechniquesThe LHCb Collaboration is constructing a large scintillating fibre tracker for a major upgrade of the experiment during the LHC long shutdown LS2 scheduled for 2019–2020. The detector is based on blue emitting Kuraray SCSF-78MJ fibres of 0.25 mm diameter, read out by linear 128-channel Hamamatsu SiPM arrays. Over a period of about 2 years the full supply of 12,000 km of fibres underwent a systematic and rigorous quality assurance program, including geometrical refinement to deal with rare punctual imperfections. The measurements comprised attenuation length, ionisation light yield, diameter, cladding integrity and radiation tolerance to X-rays. The supply was found to be timely and of very high quality and stability, which led to negligible rejection rates. A small but systematic degradation of the attenuation length by about 1.4% per year is interpreted as natural aging due to oxidation of the polystyrene fibre core and is subject of further investigations.oai:inspirehep.net:16997122018
spellingShingle Detectors and Experimental Techniques
Cavalcante, A B R
Dey, B
Gavardi, L
Gruber, L
Joram, C
Kristic, R
Shinji, O
Zhukov, V
Refining and testing 12,000 km of scintillating plastic fibre for the LHCb SciFi tracker
title Refining and testing 12,000 km of scintillating plastic fibre for the LHCb SciFi tracker
title_full Refining and testing 12,000 km of scintillating plastic fibre for the LHCb SciFi tracker
title_fullStr Refining and testing 12,000 km of scintillating plastic fibre for the LHCb SciFi tracker
title_full_unstemmed Refining and testing 12,000 km of scintillating plastic fibre for the LHCb SciFi tracker
title_short Refining and testing 12,000 km of scintillating plastic fibre for the LHCb SciFi tracker
title_sort refining and testing 12,000 km of scintillating plastic fibre for the lhcb scifi tracker
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/1748-0221/13/10/P10025
http://cds.cern.ch/record/2647071
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