Radiation-Hardness Measurements of High $OH^{-}$ Content Quartz Fibres Irradiated with 24 GeV Protons up to 1.25 Grad

We investigated the darkening of two high OH- content quartz fibres irradiated with 24 GeV protons at the Cern PS facility IRRAD. The two tested fibres have a 0.6 mm quartz core diameter, one with hard plastic cladding (qp) and the other with quartz cladding (qq). These fibres were exposed at about...

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Detalles Bibliográficos
Autores principales: Cankocak, Kerem, Bakirci, N M, Cerci, Salim, Gülmez, Erhan, Merlo, Jean-Pierre, Onel, Yasar, Ozok, Ferhat, Schmidt, Ianos, Sonmez, Nasuf
Lenguaje:eng
Publicado: 2007
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1020051
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author Cankocak, Kerem
Bakirci, N M
Cerci, Salim
Gülmez, Erhan
Merlo, Jean-Pierre
Onel, Yasar
Ozok, Ferhat
Schmidt, Ianos
Sonmez, Nasuf
author_facet Cankocak, Kerem
Bakirci, N M
Cerci, Salim
Gülmez, Erhan
Merlo, Jean-Pierre
Onel, Yasar
Ozok, Ferhat
Schmidt, Ianos
Sonmez, Nasuf
author_sort Cankocak, Kerem
collection CERN
description We investigated the darkening of two high OH- content quartz fibres irradiated with 24 GeV protons at the Cern PS facility IRRAD. The two tested fibres have a 0.6 mm quartz core diameter, one with hard plastic cladding (qp) and the other with quartz cladding (qq). These fibres were exposed at about 1.25 Gigarad in 3 weeks. The fibres became opaque below 380nm, and in the range 580-650 nm. The darkening under irradiation and damage recovery after irradiation as a function of dose and time are similar to what we observed with electrons. The typical attenuation at 455 nm are 1.44 + - 0.22 and 2.20 + - 0.15 dB/m at 100 Mrad for qp and qq fibres, respectively. The maximum damage recovery is also observed near this wavelength.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
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spelling cern-10200512019-09-30T06:29:59Zhttp://cds.cern.ch/record/1020051engCankocak, KeremBakirci, N MCerci, SalimGülmez, ErhanMerlo, Jean-PierreOnel, YasarOzok, FerhatSchmidt, IanosSonmez, NasufRadiation-Hardness Measurements of High $OH^{-}$ Content Quartz Fibres Irradiated with 24 GeV Protons up to 1.25 GradDetectors and Experimental TechniquesWe investigated the darkening of two high OH- content quartz fibres irradiated with 24 GeV protons at the Cern PS facility IRRAD. The two tested fibres have a 0.6 mm quartz core diameter, one with hard plastic cladding (qp) and the other with quartz cladding (qq). These fibres were exposed at about 1.25 Gigarad in 3 weeks. The fibres became opaque below 380nm, and in the range 580-650 nm. The darkening under irradiation and damage recovery after irradiation as a function of dose and time are similar to what we observed with electrons. The typical attenuation at 455 nm are 1.44 + - 0.22 and 2.20 + - 0.15 dB/m at 100 Mrad for qp and qq fibres, respectively. The maximum damage recovery is also observed near this wavelength.CMS-NOTE-2007-003oai:cds.cern.ch:10200512007-01-05
spellingShingle Detectors and Experimental Techniques
Cankocak, Kerem
Bakirci, N M
Cerci, Salim
Gülmez, Erhan
Merlo, Jean-Pierre
Onel, Yasar
Ozok, Ferhat
Schmidt, Ianos
Sonmez, Nasuf
Radiation-Hardness Measurements of High $OH^{-}$ Content Quartz Fibres Irradiated with 24 GeV Protons up to 1.25 Grad
title Radiation-Hardness Measurements of High $OH^{-}$ Content Quartz Fibres Irradiated with 24 GeV Protons up to 1.25 Grad
title_full Radiation-Hardness Measurements of High $OH^{-}$ Content Quartz Fibres Irradiated with 24 GeV Protons up to 1.25 Grad
title_fullStr Radiation-Hardness Measurements of High $OH^{-}$ Content Quartz Fibres Irradiated with 24 GeV Protons up to 1.25 Grad
title_full_unstemmed Radiation-Hardness Measurements of High $OH^{-}$ Content Quartz Fibres Irradiated with 24 GeV Protons up to 1.25 Grad
title_short Radiation-Hardness Measurements of High $OH^{-}$ Content Quartz Fibres Irradiated with 24 GeV Protons up to 1.25 Grad
title_sort radiation-hardness measurements of high $oh^{-}$ content quartz fibres irradiated with 24 gev protons up to 1.25 grad
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1020051
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