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Radiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detector

The radiation damage in polyvinyl toluene based plastic scintillator EJ200 obtained from ELJEN technology was investigated. This forms part of a comparative study conducted to aid in the upgrade of the Tile Calorimeter of the ATLAS detector during which the Gap scintillators will be replaced. Sample...

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Autores principales: Jivan, H, Sideras-Haddad, E, Erasmus, R, Liao, S, Madhuku, M, Peters, G, Sekonya, K, Solvyanov, O
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/645/1/012019
http://cds.cern.ch/record/2194352
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author Jivan, H
Sideras-Haddad, E
Erasmus, R
Liao, S
Madhuku, M
Peters, G
Sekonya, K
Solvyanov, O
author_facet Jivan, H
Sideras-Haddad, E
Erasmus, R
Liao, S
Madhuku, M
Peters, G
Sekonya, K
Solvyanov, O
author_sort Jivan, H
collection CERN
description The radiation damage in polyvinyl toluene based plastic scintillator EJ200 obtained from ELJEN technology was investigated. This forms part of a comparative study conducted to aid in the upgrade of the Tile Calorimeter of the ATLAS detector during which the Gap scintillators will be replaced. Samples subjected to 6 MeV proton irradiation using the tandem accelerator of iThemba LABS, were irradiated with doses of approximately 0.8 MGy, 8 MGy, 25 MGy and 80 MGy. The optical properties were investigated using transmission spectroscopy and light yield analysis whilst structural damage was assessed using Raman spectroscopy. Findings indicate that for the dose of 0.8 MGy, no structural damage occurs and light loss can be attributed to a breakdown in the light transfer between base and fluor dopants. For doses of 8 MGy to 80 MGy, structural damage leads to possible hydrogen loss in the benzene ring of the PVT base which forms free radicals. This results in an additional absorptive component causing increased transmission loss and light yield loss with increasing dose.
id oai-inspirehep.net-1399259
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling oai-inspirehep.net-13992592022-08-10T13:06:30Zdoi:10.1088/1742-6596/645/1/012019http://cds.cern.ch/record/2194352engJivan, HSideras-Haddad, EErasmus, RLiao, SMadhuku, MPeters, GSekonya, KSolvyanov, ORadiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detectorDetectors and Experimental TechniquesThe radiation damage in polyvinyl toluene based plastic scintillator EJ200 obtained from ELJEN technology was investigated. This forms part of a comparative study conducted to aid in the upgrade of the Tile Calorimeter of the ATLAS detector during which the Gap scintillators will be replaced. Samples subjected to 6 MeV proton irradiation using the tandem accelerator of iThemba LABS, were irradiated with doses of approximately 0.8 MGy, 8 MGy, 25 MGy and 80 MGy. The optical properties were investigated using transmission spectroscopy and light yield analysis whilst structural damage was assessed using Raman spectroscopy. Findings indicate that for the dose of 0.8 MGy, no structural damage occurs and light loss can be attributed to a breakdown in the light transfer between base and fluor dopants. For doses of 8 MGy to 80 MGy, structural damage leads to possible hydrogen loss in the benzene ring of the PVT base which forms free radicals. This results in an additional absorptive component causing increased transmission loss and light yield loss with increasing dose.oai:inspirehep.net:13992592015
spellingShingle Detectors and Experimental Techniques
Jivan, H
Sideras-Haddad, E
Erasmus, R
Liao, S
Madhuku, M
Peters, G
Sekonya, K
Solvyanov, O
Radiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detector
title Radiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detector
title_full Radiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detector
title_fullStr Radiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detector
title_full_unstemmed Radiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detector
title_short Radiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detector
title_sort radiation hardness of plastic scintillators for the tile calorimeter of the atlas detector
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/1742-6596/645/1/012019
http://cds.cern.ch/record/2194352
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