A study of the monitoring of radiation damage to CMS ECAL crystals, performed at X5-GIF

The ratio R, defined as the fractional decrease in the beam signal divided by the fractional decrease in the light monitoring signal, was measured at the GIF-X5 facility for a set of 20 ECAL barrel crystals. The dependence of R on the wavelength of the injected monitoring light and its path length i...

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Detalles Bibliográficos
Autores principales: Davies, Gavin, Peigneux, Jean-Pierre, Seez, Christopher, Singovsky, Alexander
Lenguaje:eng
Publicado: 2000
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1088/0954-3899/26/11/308
http://cds.cern.ch/record/494666
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author Davies, Gavin
Peigneux, Jean-Pierre
Seez, Christopher
Singovsky, Alexander
author_facet Davies, Gavin
Peigneux, Jean-Pierre
Seez, Christopher
Singovsky, Alexander
author_sort Davies, Gavin
collection CERN
description The ratio R, defined as the fractional decrease in the beam signal divided by the fractional decrease in the light monitoring signal, was measured at the GIF-X5 facility for a set of 20 ECAL barrel crystals. The dependence of R on the wavelength of the injected monitoring light and its path length in the crystals was studied. Measurements of the inter-crystal variation in R are presented for 10 pre-production crystals. Results on the dependence of signal loss on the irradiation profile are given. The use of lead filters, placed between a /sup 137/Cs source and a crystal, to reproduce different longitudinal irradiation profiles has been rested. (9 refs).
id cern-494666
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4946662019-09-30T06:29:59Zdoi:10.1088/0954-3899/26/11/308http://cds.cern.ch/record/494666engDavies, GavinPeigneux, Jean-PierreSeez, ChristopherSingovsky, AlexanderA study of the monitoring of radiation damage to CMS ECAL crystals, performed at X5-GIFDetectors and Experimental TechniquesThe ratio R, defined as the fractional decrease in the beam signal divided by the fractional decrease in the light monitoring signal, was measured at the GIF-X5 facility for a set of 20 ECAL barrel crystals. The dependence of R on the wavelength of the injected monitoring light and its path length in the crystals was studied. Measurements of the inter-crystal variation in R are presented for 10 pre-production crystals. Results on the dependence of signal loss on the irradiation profile are given. The use of lead filters, placed between a /sup 137/Cs source and a crystal, to reproduce different longitudinal irradiation profiles has been rested. (9 refs).CMS-NOTE-2000-020oai:cds.cern.ch:4946662000
spellingShingle Detectors and Experimental Techniques
Davies, Gavin
Peigneux, Jean-Pierre
Seez, Christopher
Singovsky, Alexander
A study of the monitoring of radiation damage to CMS ECAL crystals, performed at X5-GIF
title A study of the monitoring of radiation damage to CMS ECAL crystals, performed at X5-GIF
title_full A study of the monitoring of radiation damage to CMS ECAL crystals, performed at X5-GIF
title_fullStr A study of the monitoring of radiation damage to CMS ECAL crystals, performed at X5-GIF
title_full_unstemmed A study of the monitoring of radiation damage to CMS ECAL crystals, performed at X5-GIF
title_short A study of the monitoring of radiation damage to CMS ECAL crystals, performed at X5-GIF
title_sort study of the monitoring of radiation damage to cms ecal crystals, performed at x5-gif
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/0954-3899/26/11/308
http://cds.cern.ch/record/494666
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