Preliminary Results from in Situ Quartz Fiber Neutron Irradiations

Optical transmission characteristics of multi-mode synthetic silica-core fibers between 325 nm and 800 nm were studied in situ while irradiated with neutrons. In one case, fiber samples were placed in the core of a 10-kWatt reactor; in the other, fast neutrons generated by p ( 18 MeV) + Be reaction...

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Detalles Bibliográficos
Autores principales: Akchurin, Nural, Anderson, W, Ayan, S, Bencze, Gyorgy, Dumano, I, Fenyvesi, Andras, Hauptman, John M, Merlo, Jean-Pierre, Miller, Michael, Önel, Y M, McCliment, Edward, Schwellenbach, D
Lenguaje:eng
Publicado: 1998
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/687583
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author Akchurin, Nural
Anderson, W
Ayan, S
Ayan, S
Bencze, Gyorgy
Dumano, I
Fenyvesi, Andras
Hauptman, John M
Merlo, Jean-Pierre
Miller, Michael
Önel, Y M
McCliment, Edward
Schwellenbach, D
author_facet Akchurin, Nural
Anderson, W
Ayan, S
Ayan, S
Bencze, Gyorgy
Dumano, I
Fenyvesi, Andras
Hauptman, John M
Merlo, Jean-Pierre
Miller, Michael
Önel, Y M
McCliment, Edward
Schwellenbach, D
author_sort Akchurin, Nural
collection CERN
description Optical transmission characteristics of multi-mode synthetic silica-core fibers between 325 nm and 800 nm were studied in situ while irradiated with neutrons. In one case, fiber samples were placed in the core of a 10-kWatt reactor; in the other, fast neutrons generated by p ( 18 MeV) + Be reaction in a cyclotron, irradiated the fibers. The neutron fluence in both studies totaled ~10^15 n/cm2. Both of these initial studies indicate that in the sensitivity region of bialkiline PMTs, the irradiation induced loss is ~1dB/m. These initial experiments are aimed at establishing a fiber testing methodology for assessing the expected degradation of the CMS forward calorimeter at the LHC due to large neutron backgrounds.
id cern-687583
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
record_format invenio
spelling cern-6875832019-09-30T06:29:59Zhttp://cds.cern.ch/record/687583engAkchurin, NuralAnderson, WAyan, SAyan, SBencze, GyorgyDumano, IFenyvesi, AndrasHauptman, John MMerlo, Jean-PierreMiller, MichaelÖnel, Y MMcCliment, EdwardSchwellenbach, DPreliminary Results from in Situ Quartz Fiber Neutron IrradiationsDetectors and Experimental TechniquesOptical transmission characteristics of multi-mode synthetic silica-core fibers between 325 nm and 800 nm were studied in situ while irradiated with neutrons. In one case, fiber samples were placed in the core of a 10-kWatt reactor; in the other, fast neutrons generated by p ( 18 MeV) + Be reaction in a cyclotron, irradiated the fibers. The neutron fluence in both studies totaled ~10^15 n/cm2. Both of these initial studies indicate that in the sensitivity region of bialkiline PMTs, the irradiation induced loss is ~1dB/m. These initial experiments are aimed at establishing a fiber testing methodology for assessing the expected degradation of the CMS forward calorimeter at the LHC due to large neutron backgrounds.CMS-NOTE-1998-056oai:cds.cern.ch:6875831998-10-06
spellingShingle Detectors and Experimental Techniques
Akchurin, Nural
Anderson, W
Ayan, S
Ayan, S
Bencze, Gyorgy
Dumano, I
Fenyvesi, Andras
Hauptman, John M
Merlo, Jean-Pierre
Miller, Michael
Önel, Y M
McCliment, Edward
Schwellenbach, D
Preliminary Results from in Situ Quartz Fiber Neutron Irradiations
title Preliminary Results from in Situ Quartz Fiber Neutron Irradiations
title_full Preliminary Results from in Situ Quartz Fiber Neutron Irradiations
title_fullStr Preliminary Results from in Situ Quartz Fiber Neutron Irradiations
title_full_unstemmed Preliminary Results from in Situ Quartz Fiber Neutron Irradiations
title_short Preliminary Results from in Situ Quartz Fiber Neutron Irradiations
title_sort preliminary results from in situ quartz fiber neutron irradiations
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/687583
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